如何在springmvc+mybatis中做ajax请求

发布网友发布时间：2022-04-08 04:06

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共3个回答

懂视网时间：2022-04-08 08:27

开发环境：

Eclipse Java EE IDE for Web Developers.
Version: Luna Service Release 2 (4.4.2)
Build id: 20150219-0600

JDK版本：

jdk1.6.0_45

本文工程免费下载

工程的其它参数：

技术分享

1、用到的JAR包

json使用的包。这里下载

spring+sprngMvc的包。

mybatis的包

mysql连接的包

logger的包（日记打印的）

如下：

技术分享

2、需要的外部js

jquery-1.11.3.min.js

3、项目结构

这是还没有展开的

技术分享

然后把各个都展开：

技术分享

其中src放置java的文件、config放置SpringMVC+Spring+Mybatis的配置文件以及日记打印的log4j.properties

web-inf下面：js用来放置调用的js文件，lib就是最上面说的jar包的位置，view是各个jsp文件

二、编程

2.1 java代码

这里分了5层，按照标准的web工程来

1、domain层

这里是使用Mybatis Generator自动生成的：User.java

package com.lin.domain;

public class User {
 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database column t_user.USER_ID
 *
 * @mbggenerated
 */
 private Integer userId;

 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database column t_user.USER_NAME
 *
 * @mbggenerated
 */
 private String userName;

 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database column t_user.USER_PASSWORD
 *
 * @mbggenerated
 */
 private String userPassword;

 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database column t_user.USER_EMAIL
 *
 * @mbggenerated
 */
 private String userEmail;

 /**
 * This method was generated by MyBatis Generator.
 * This method returns the value of the database column t_user.USER_ID
 *
 * @return the value of t_user.USER_ID
 *
 * @mbggenerated
 */
 public Integer getUserId() {
 return userId;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method sets the value of the database column t_user.USER_ID
 *
 * @param userId the value for t_user.USER_ID
 *
 * @mbggenerated
 */
 public void setUserId(Integer userId) {
 this.userId = userId;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method returns the value of the database column t_user.USER_NAME
 *
 * @return the value of t_user.USER_NAME
 *
 * @mbggenerated
 */
 public String getUserName() {
 return userName;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method sets the value of the database column t_user.USER_NAME
 *
 * @param userName the value for t_user.USER_NAME
 *
 * @mbggenerated
 */
 public void setUserName(String userName) {
 this.userName = userName == null ? null : userName.trim();
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method returns the value of the database column t_user.USER_PASSWORD
 *
 * @return the value of t_user.USER_PASSWORD
 *
 * @mbggenerated
 */
 public String getUserPassword() {
 return userPassword;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method sets the value of the database column t_user.USER_PASSWORD
 *
 * @param userPassword the value for t_user.USER_PASSWORD
 *
 * @mbggenerated
 */
 public void setUserPassword(String userPassword) {
 this.userPassword = userPassword == null ? null : userPassword.trim();
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method returns the value of the database column t_user.USER_EMAIL
 *
 * @return the value of t_user.USER_EMAIL
 *
 * @mbggenerated
 */
 public String getUserEmail() {
 return userEmail;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method sets the value of the database column t_user.USER_EMAIL
 *
 * @param userEmail the value for t_user.USER_EMAIL
 *
 * @mbggenerated
 */
 public void setUserEmail(String userEmail) {
 this.userEmail = userEmail == null ? null : userEmail.trim();
 }
}

然后还有一个example文件：UserExample.java

package com.lin.domain;

import java.util.ArrayList;
import java.util.List;

public class UserExample {
 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database table t_user
 *
 * @mbggenerated
 */
 protected String orderByClause;

 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database table t_user
 *
 * @mbggenerated
 */
 protected boolean distinct;

 /**
 * This field was generated by MyBatis Generator.
 * This field corresponds to the database table t_user
 *
 * @mbggenerated
 */
 protected List<Criteria> oredCriteria;

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public UserExample() {
 oredCriteria = new ArrayList<Criteria>();
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public void setOrderByClause(String orderByClause) {
 this.orderByClause = orderByClause;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public String getOrderByClause() {
 return orderByClause;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public void setDistinct(boolean distinct) {
 this.distinct = distinct;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public boolean isDistinct() {
 return distinct;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public List<Criteria> getOredCriteria() {
 return oredCriteria;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public void or(Criteria criteria) {
 oredCriteria.add(criteria);
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public Criteria or() {
 Criteria criteria = createCriteriaInternal();
 oredCriteria.add(criteria);
 return criteria;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public Criteria createCriteria() {
 Criteria criteria = createCriteriaInternal();
 if (oredCriteria.size() == 0) {
  oredCriteria.add(criteria);
 }
 return criteria;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 protected Criteria createCriteriaInternal() {
 Criteria criteria = new Criteria();
 return criteria;
 }

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public void clear() {
 oredCriteria.clear();
 orderByClause = null;
 distinct = false;
 }

 /**
 * This class was generated by MyBatis Generator.
 * This class corresponds to the database table t_user
 *
 * @mbggenerated
 */
 protected abstract static class GeneratedCriteria {
 protected List<Criterion> criteria;

 protected GeneratedCriteria() {
  super();
  criteria = new ArrayList<Criterion>();
 }

 public boolean isValid() {
  return criteria.size() > 0;
 }

 public List<Criterion> getCriteria() {
  return criteria;
 }

 protected void addCriterion(String condition) {
  if (condition == null) {
  throw new RuntimeException("Value for condition cannot be null");
  }
  criteria.add(new Criterion(condition));
 }

 protected void addCriterion(String condition, Object value, String property) {
  if (value == null) {
  throw new RuntimeException("Value for " + property + " cannot be null");
  }
  criteria.add(new Criterion(condition, value));
 }

 protected void addCriterion(String condition, Object value1, Object value2, String property) {
  if (value1 == null || value2 == null) {
  throw new RuntimeException("Between values for " + property + " cannot be null");
  }
  criteria.add(new Criterion(condition, value1, value2));
 }

 public Criteria andUserIdIsNull() {
  addCriterion("USER_ID is null");
  return (Criteria) this;
 }

 public Criteria andUserIdIsNotNull() {
  addCriterion("USER_ID is not null");
  return (Criteria) this;
 }

 public Criteria andUserIdEqualTo(Integer value) {
  addCriterion("USER_ID =", value, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdNotEqualTo(Integer value) {
  addCriterion("USER_ID <>", value, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdGreaterThan(Integer value) {
  addCriterion("USER_ID >", value, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdGreaterThanOrEqualTo(Integer value) {
  addCriterion("USER_ID >=", value, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdLessThan(Integer value) {
  addCriterion("USER_ID <", value, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdLessThanOrEqualTo(Integer value) {
  addCriterion("USER_ID <=", value, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdIn(List<Integer> values) {
  addCriterion("USER_ID in", values, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdNotIn(List<Integer> values) {
  addCriterion("USER_ID not in", values, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdBetween(Integer value1, Integer value2) {
  addCriterion("USER_ID between", value1, value2, "userId");
  return (Criteria) this;
 }

 public Criteria andUserIdNotBetween(Integer value1, Integer value2) {
  addCriterion("USER_ID not between", value1, value2, "userId");
  return (Criteria) this;
 }

 public Criteria andUserNameIsNull() {
  addCriterion("USER_NAME is null");
  return (Criteria) this;
 }

 public Criteria andUserNameIsNotNull() {
  addCriterion("USER_NAME is not null");
  return (Criteria) this;
 }

 public Criteria andUserNameEqualTo(String value) {
  addCriterion("USER_NAME =", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameNotEqualTo(String value) {
  addCriterion("USER_NAME <>", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameGreaterThan(String value) {
  addCriterion("USER_NAME >", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameGreaterThanOrEqualTo(String value) {
  addCriterion("USER_NAME >=", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameLessThan(String value) {
  addCriterion("USER_NAME <", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameLessThanOrEqualTo(String value) {
  addCriterion("USER_NAME <=", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameLike(String value) {
  addCriterion("USER_NAME like", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameNotLike(String value) {
  addCriterion("USER_NAME not like", value, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameIn(List<String> values) {
  addCriterion("USER_NAME in", values, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameNotIn(List<String> values) {
  addCriterion("USER_NAME not in", values, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameBetween(String value1, String value2) {
  addCriterion("USER_NAME between", value1, value2, "userName");
  return (Criteria) this;
 }

 public Criteria andUserNameNotBetween(String value1, String value2) {
  addCriterion("USER_NAME not between", value1, value2, "userName");
  return (Criteria) this;
 }

 public Criteria andUserPasswordIsNull() {
  addCriterion("USER_PASSWORD is null");
  return (Criteria) this;
 }

 public Criteria andUserPasswordIsNotNull() {
  addCriterion("USER_PASSWORD is not null");
  return (Criteria) this;
 }

 public Criteria andUserPasswordEqualTo(String value) {
  addCriterion("USER_PASSWORD =", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordNotEqualTo(String value) {
  addCriterion("USER_PASSWORD <>", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordGreaterThan(String value) {
  addCriterion("USER_PASSWORD >", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordGreaterThanOrEqualTo(String value) {
  addCriterion("USER_PASSWORD >=", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordLessThan(String value) {
  addCriterion("USER_PASSWORD <", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordLessThanOrEqualTo(String value) {
  addCriterion("USER_PASSWORD <=", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordLike(String value) {
  addCriterion("USER_PASSWORD like", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordNotLike(String value) {
  addCriterion("USER_PASSWORD not like", value, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordIn(List<String> values) {
  addCriterion("USER_PASSWORD in", values, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordNotIn(List<String> values) {
  addCriterion("USER_PASSWORD not in", values, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordBetween(String value1, String value2) {
  addCriterion("USER_PASSWORD between", value1, value2, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserPasswordNotBetween(String value1, String value2) {
  addCriterion("USER_PASSWORD not between", value1, value2, "userPassword");
  return (Criteria) this;
 }

 public Criteria andUserEmailIsNull() {
  addCriterion("USER_EMAIL is null");
  return (Criteria) this;
 }

 public Criteria andUserEmailIsNotNull() {
  addCriterion("USER_EMAIL is not null");
  return (Criteria) this;
 }

 public Criteria andUserEmailEqualTo(String value) {
  addCriterion("USER_EMAIL =", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailNotEqualTo(String value) {
  addCriterion("USER_EMAIL <>", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailGreaterThan(String value) {
  addCriterion("USER_EMAIL >", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailGreaterThanOrEqualTo(String value) {
  addCriterion("USER_EMAIL >=", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailLessThan(String value) {
  addCriterion("USER_EMAIL <", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailLessThanOrEqualTo(String value) {
  addCriterion("USER_EMAIL <=", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailLike(String value) {
  addCriterion("USER_EMAIL like", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailNotLike(String value) {
  addCriterion("USER_EMAIL not like", value, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailIn(List<String> values) {
  addCriterion("USER_EMAIL in", values, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailNotIn(List<String> values) {
  addCriterion("USER_EMAIL not in", values, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailBetween(String value1, String value2) {
  addCriterion("USER_EMAIL between", value1, value2, "userEmail");
  return (Criteria) this;
 }

 public Criteria andUserEmailNotBetween(String value1, String value2) {
  addCriterion("USER_EMAIL not between", value1, value2, "userEmail");
  return (Criteria) this;
 }
 }

 /**
 * This class was generated by MyBatis Generator.
 * This class corresponds to the database table t_user
 *
 * @mbggenerated do_not_delete_during_merge
 */
 public static class Criteria extends GeneratedCriteria {

 protected Criteria() {
  super();
 }
 }

 /**
 * This class was generated by MyBatis Generator.
 * This class corresponds to the database table t_user
 *
 * @mbggenerated
 */
 public static class Criterion {
 private String condition;

 private Object value;

 private Object secondValue;

 private boolean noValue;

 private boolean singleValue;

 private boolean betweenValue;

 private boolean listValue;

 public String getCondition() {
  return condition;
 }

 public Object getValue() {
  return value;
 }

 public Object getSecondValue() {
  return secondValue;
 }

 public boolean isNoValue() {
  return noValue;
 }

 public boolean isSingleValue() {
  return singleValue;
 }

 public boolean isBetweenValue() {
  return betweenValue;
 }

 public boolean isListValue() {
  return listValue;
 }

 protected Criterion(String condition) {
  super();
  this.condition = condition;
  this.noValue = true;
 }

 protected Criterion(String condition, Object value) {
  super();
  this.condition = condition;
  this.value = value;
  if (value instanceof List<?>) {
  this.listValue = true;
  } else {
  this.singleValue = true;
  }
 }

 protected Criterion(String condition, Object value, Object secondValue) {
  super();
  this.condition = condition;
  this.value = value;
  this.secondValue = secondValue;
  this.betweenValue = true;
 }
 }
}

2、dao层

这里是使用Mybatis Generator自动生成的：UserDao.java

package com.lin.dao;

import com.lin.domain.User;
import com.lin.domain.UserExample;
import java.util.List;
import org.apache.ibatis.annotations.Param;

public interface UserDao {
 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int countByExample(UserExample example);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int deleteByExample(UserExample example);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int deleteByPrimaryKey(Integer userId);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int insert(User record);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int insertSelective(User record);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 List<User> selectByExample(UserExample example);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 User selectByPrimaryKey(Integer userId);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int updateByExampleSelective(@Param("record") User record, @Param("example") UserExample example);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int updateByExample(@Param("record") User record, @Param("example") UserExample example);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int updateByPrimaryKeySelective(User record);

 /**
 * This method was generated by MyBatis Generator.
 * This method corresponds to the database table t_user
 *
 * @mbggenerated
 */
 int updateByPrimaryKey(User record);
}

3、service层

这里就设计了两个方法，一个查找和一个插入

接口类：

package com.lin.service;

import com.lin.domain.User;
import com.lin.domain.UserExample;

public interface IRegisterService {
	
	public int insert(User record);
	
	public int countByExample(UserExample example);

}

实现类：

package com.lin.service.impl;

import javax.annotation.Resource;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Service;

import com.lin.dao.UserDao;
import com.lin.domain.User;
import com.lin.domain.UserExample;
import com.lin.service.IRegisterService;
@Service("registerService")
public class RegisterServiceImpl implements IRegisterService{
	private static Logger logger = Logger.getLogger(RegisterServiceImpl.class); 
	@Resource
	private UserDao userDao;

	@Override
	public int insert(User record) {	
		try {
			return userDao.insert(record);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return 0;
	}

	@Override
	public int countByExample(UserExample example) {
		try {
			return userDao.countByExample(example);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return 0;
	}

}

2.2 配置文件

技术分享

1、mappp文件配置

这里是使用Mybatis Generator自动生成的：UserMapper.xml。放在src下面的com.lin.mapper包下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.lin.dao.UserDao">
 <resultMap id="BaseResultMap" type="com.lin.domain.User">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 <id column="USER_ID" jdbcType="INTEGER" property="userId" />
 <result column="USER_NAME" jdbcType="CHAR" property="userName" />
 <result column="USER_PASSWORD" jdbcType="CHAR" property="userPassword" />
 <result column="USER_EMAIL" jdbcType="CHAR" property="userEmail" />
 </resultMap>
 <sql id="Example_Where_Clause">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 <where>
 <foreach collection="oredCriteria" item="criteria" separator="or">
 <if test="criteria.valid">
  <trim prefix="(" prefixOverrides="and" suffix=")">
  <foreach collection="criteria.criteria" item="criterion">
  <choose>
  <when test="criterion.noValue">
   and ${criterion.condition}
  </when>
  <when test="criterion.singleValue">
   and ${criterion.condition} #{criterion.value}
  </when>
  <when test="criterion.betweenValue">
   and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
  </when>
  <when test="criterion.listValue">
   and ${criterion.condition}
   <foreach close=")" collection="criterion.value" item="listItem" open="(" separator=",">
   #{listItem}
   </foreach>
  </when>
  </choose>
  </foreach>
  </trim>
 </if>
 </foreach>
 </where>
 </sql>
 <sql id="Update_By_Example_Where_Clause">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 <where>
 <foreach collection="example.oredCriteria" item="criteria" separator="or">
 <if test="criteria.valid">
  <trim prefix="(" prefixOverrides="and" suffix=")">
  <foreach collection="criteria.criteria" item="criterion">
  <choose>
  <when test="criterion.noValue">
   and ${criterion.condition}
  </when>
  <when test="criterion.singleValue">
   and ${criterion.condition} #{criterion.value}
  </when>
  <when test="criterion.betweenValue">
   and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
  </when>
  <when test="criterion.listValue">
   and ${criterion.condition}
   <foreach close=")" collection="criterion.value" item="listItem" open="(" separator=",">
   #{listItem}
   </foreach>
  </when>
  </choose>
  </foreach>
  </trim>
 </if>
 </foreach>
 </where>
 </sql>
 <sql id="Base_Column_List">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL
 </sql>
 <select id="selectByExample" parameterType="com.lin.domain.UserExample" resultMap="BaseResultMap">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 select
 <if test="distinct">
 distinct
 </if>
 <include refid="Base_Column_List" />
 from t_user
 <if test="_parameter != null">
 <include refid="Example_Where_Clause" />
 </if>
 <if test="orderByClause != null">
 order by ${orderByClause}
 </if>
 </select>
 <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 select 
 <include refid="Base_Column_List" />
 from t_user
 where USER_ID = #{userId,jdbcType=INTEGER}
 </select>
 <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 delete from t_user
 where USER_ID = #{userId,jdbcType=INTEGER}
 </delete>
 <delete id="deleteByExample" parameterType="com.lin.domain.UserExample">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 delete from t_user
 <if test="_parameter != null">
 <include refid="Example_Where_Clause" />
 </if>
 </delete>
 <insert id="insert" parameterType="com.lin.domain.User">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 insert into t_user (USER_ID, USER_NAME, USER_PASSWORD, 
 USER_EMAIL)
 values (#{userId,jdbcType=INTEGER}, #{userName,jdbcType=CHAR}, #{userPassword,jdbcType=CHAR}, 
 #{userEmail,jdbcType=CHAR})
 </insert>
 <insert id="insertSelective" parameterType="com.lin.domain.User">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 insert into t_user
 <trim prefix="(" suffix=")" suffixOverrides=",">
 <if test="userId != null">
 USER_ID,
 </if>
 <if test="userName != null">
 USER_NAME,
 </if>
 <if test="userPassword != null">
 USER_PASSWORD,
 </if>
 <if test="userEmail != null">
 USER_EMAIL,
 </if>
 </trim>
 <trim prefix="values (" suffix=")" suffixOverrides=",">
 <if test="userId != null">
 #{userId,jdbcType=INTEGER},
 </if>
 <if test="userName != null">
 #{userName,jdbcType=CHAR},
 </if>
 <if test="userPassword != null">
 #{userPassword,jdbcType=CHAR},
 </if>
 <if test="userEmail != null">
 #{userEmail,jdbcType=CHAR},
 </if>
 </trim>
 </insert>
 <select id="countByExample" parameterType="com.lin.domain.UserExample" resultType="java.lang.Integer">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 select count(*) from t_user
 <if test="_parameter != null">
 <include refid="Example_Where_Clause" />
 </if>
 </select>
 <update id="updateByExampleSelective" parameterType="map">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 update t_user
 <set>
 <if test="record.userId != null">
 USER_ID = #{record.userId,jdbcType=INTEGER},
 </if>
 <if test="record.userName != null">
 USER_NAME = #{record.userName,jdbcType=CHAR},
 </if>
 <if test="record.userPassword != null">
 USER_PASSWORD = #{record.userPassword,jdbcType=CHAR},
 </if>
 <if test="record.userEmail != null">
 USER_EMAIL = #{record.userEmail,jdbcType=CHAR},
 </if>
 </set>
 <if test="_parameter != null">
 <include refid="Update_By_Example_Where_Clause" />
 </if>
 </update>
 <update id="updateByExample" parameterType="map">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 update t_user
 set USER_ID = #{record.userId,jdbcType=INTEGER},
 USER_NAME = #{record.userName,jdbcType=CHAR},
 USER_PASSWORD = #{record.userPassword,jdbcType=CHAR},
 USER_EMAIL = #{record.userEmail,jdbcType=CHAR}
 <if test="_parameter != null">
 <include refid="Update_By_Example_Where_Clause" />
 </if>
 </update>
 <update id="updateByPrimaryKeySelective" parameterType="com.lin.domain.User">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 update t_user
 <set>
 <if test="userName != null">
 USER_NAME = #{userName,jdbcType=CHAR},
 </if>
 <if test="userPassword != null">
 USER_PASSWORD = #{userPassword,jdbcType=CHAR},
 </if>
 <if test="userEmail != null">
 USER_EMAIL = #{userEmail,jdbcType=CHAR},
 </if>
 </set>
 where USER_ID = #{userId,jdbcType=INTEGER}
 </update>
 <update id="updateByPrimaryKey" parameterType="com.lin.domain.User">
 <!--
 WARNING - @mbggenerated
 This element is automatically generated by MyBatis Generator, do not modify.
 -->
 update t_user
 set USER_NAME = #{userName,jdbcType=CHAR},
 USER_PASSWORD = #{userPassword,jdbcType=CHAR},
 USER_EMAIL = #{userEmail,jdbcType=CHAR}
 where USER_ID = #{userId,jdbcType=INTEGER}
 </update>
</mapper>

2、mybatis配置,没有其实也行，因为都在spring中进行配置了，但是保留一下，以免要用，mybatis-config.xml放在config下面

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
</configuration>

3、spingMVC配置

<beans xmlns="http://www.springframework.org/schema/beans" 
 xmlns:context="http://www.springframework.org/schema/context" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 
 xmlns:mvc="http://www.springframework.org/schema/mvc" 
 xsi:schemaLocation=" 
 http://www.springframework.org/schema/mvc 
 http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
 http://www.springframework.org/schema/beans  
 http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
 http://www.springframework.org/schema/mvc 
 http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
 http://www.springframework.org/schema/context 
 http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 
 <!-- 把标记了@Controller注解的类转换为bean --> 
 <context:component-scan base-package="com.lin.controller" /> 
 <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 --> 
 <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> 
 <!-- 静态资源访问（不拦截此目录下的东西的访问） --> 
 <mvc:annotation-driven /> 
 <mvc:resources location="/WEB-INF//js/" mapping="/js/**" /> 
 <!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 --> 
 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
 p:prefix="/WEB-INF/views/" p:suffix=".jsp"/> 

 
</beans>

4、spring配置：application.xml放在config下面

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation=" 
  http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
  http://www.springframework.org/schema/aop 
  http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
  http://www.springframework.org/schema/context 
  http://www.springframework.org/schema/context/spring-context-3.0.xsd">
	<!-- 配置数据源 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://localhost:3306/learning" />
		<property name="username" value="root" />
		<property name="password" value="christmas258@" />
	</bean>

	<!-- 自动扫描了所有的XxxxMapper.xml对应的mapper接口文件，这样就不用一个一个手动配置Mpper的映射了，只要Mapper接口类和Mapper映射文件对应起来就可以了。 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage"
			value="com.lin.dao" />
	</bean>

<!-- 配置Mybatis的文件 ，mapperLocations配置**Mapper.xml文件位置，configLocation配置mybatis-config文件位置-->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
 <property name="mapperLocations" value="classpath*:com/lin/mapper/**/*.xml"/> 
		<property name="configLocation" value="classpath:mybatis-config.xml" />
		<!-- <property name="typeAliasesPackage" value="com.tiantian.ckeditor.model" 
			/> -->
	</bean>

	<!-- 自动扫描注解的bean -->
	<context:component-scan base-package="com.lin.controller" />
		<context:component-scan base-package="com.lin.service.impl" />

</beans>

5、日志打印配置：log4j.properties放在config下面

log4j.rootLogger =DEBEG,stdout,debug
 
 
log4j.appender.stdout = org.apache.log4j.ConsoleAppender 
log4j.appender.stdout.Target = System.out 
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout 
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n 
 
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

6、web文件配置，放在WebContent下面

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
 <display-name>JsLearning3</display-name>
 <welcome-file-list>
 <welcome-file>index.html</welcome-file>
 <welcome-file>index.htm</welcome-file>
 <welcome-file>index.jsp</welcome-file>
 <welcome-file>default.html</welcome-file>
 <welcome-file>default.htm</welcome-file>
 <welcome-file>default.jsp</welcome-file>
 </welcome-file-list>
 
 <!-- Spring 容器加载 --> 
 <listener> 
 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
 </listener> 
 <context-param> 
 <param-name>contextConfigLocation</param-name> 
 <param-value>classpath:application.xml</param-value> 
 </context-param> 
 
 <!-- 统一设置编码，防止出现中文乱码 --> 
 	<filter>
		<filter-name>Set Character Encoding</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>Set Character Encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
 
 <!-- SpringMVC的前端控制器 --> 
 <servlet> 
 <servlet-name>dispatcherServlet</servlet-name> 
 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
 <!-- 设置自己定义的控制器xml文件 --> 
 <init-param> 
  <param-name>contextConfigLocation</param-name> 
  <param-value>classpath*:spring-servlet.xml</param-value> 
 </init-param> 
 <load-on-startup>1</load-on-startup> 
 </servlet> 
 <!-- Spring MVC配置文件结束 --> 
 
 <!-- 拦截设置 --> 
 <servlet-mapping> 
 <servlet-name>dispatcherServlet</servlet-name> 
 <!-- 由SpringMVC拦截所有请求 --> 
 <url-pattern>/</url-pattern> 
 </servlet-mapping> 
 
 <!-- webAppRootKey：值缺省为webapp.root，当tomcat下部署多个应用时(每个都用到了log4j)， 每个应用的web.xml中都要配置该参数，该参数与Log4j.xml文件中的${webapp.root}
 否则每个应用的webAppRootKey值都相同，就会引起冲突
 -->
 <context-param>
 <param-name>webAppRootKey</param-name>
 <param-value>webApp.root</param-value>
 </context-param>
 <!-- log4jConfigLocation：log4j配置文件存放路径 -->
 <context-param>
 <param-name>log4jConfigLocation</param-name>
 <param-value>classpath:log4j.properties</param-value>
 </context-param>
 <!-- 3000表示 开一条watchdog线程每60秒扫描一下配置文件的变化;这样便于日志存放位置的改变 --> 
 <context-param> 
  <param-name>log4jRefreshInterval</param-name> 
  <param-value>3000</param-value> 
 </context-param> 
 <listener>
 <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
 </listener>
</web-app>

三、web页面编写

技术分享

1、使用到的js编程

var process_request = "<img src=‘loading.gif‘ width=‘16‘ height=‘16‘ border=‘0‘ align=‘absmiddle‘>正在数据处理中..."; 
var username_empty = "<span style=‘COLOR:#ff0000‘> × 用户名不能为空!</span>"; 
var username_shorter = "<span style=‘COLOR:#ff0000‘> × 用户名长度不能少于 3 个字符。</span>"; 
var username_longer = "<span style=‘COLOR:#ff0000‘> × 用户名长度不能大于 30个字符。</span>"; 
var username_invalid = "- 用户名只能是由字母数字以及下划线组成。"; 
var username_have_register = "<span style=‘COLOR:#ff0000‘> × 用户名已经存在,请重新输入!</span>"; 
var username_can_register="<span style=‘COLOR:#006600‘> √ 恭喜您！该用户名可以注册!</span>"; 
var password_empty = "<span style=‘COLOR:#ff0000‘> × 登录密码不能为空。</span>"; 
var password_shorter_s = "<span style=‘COLOR:#ff0000‘> × 登录密码不能少于 6 个字符。</span>"; 
var password_shorter_m = "<span style=‘COLOR:#ff0000‘> × 登录密码不能多于 30 个字符。</span>"; 
var confirm_password_invalid = "<span style=‘COLOR:#ff0000‘> × 两次输入密码不一致!</span>"; 
var email_empty = "<span style=‘COLOR:#ff0000‘> × 邮箱不能为空！</span>"; 
var email_invalid = "<span style=‘COLOR:#ff0000‘> × 邮箱格式出错！</span>"; 
var email_have_register = "<span style=‘COLOR:#ff0000‘> × 该邮箱已被注册！ </span>"; 
var email_can_register = "<span style=‘COLOR:#006600‘> √ 邮箱可以注册!</span>"; 
var agreement_no = "<span style=‘COLOR:#ff0000‘> × 您没有接受协议</span>"; 
var agreement_yes= "<span style=‘COLOR:#006600‘> √ 已经接受协议</span>"; 
var info_can="<span style=‘COLOR:#006600‘> √ 可以注册!</span>"; 
var info_right="<span style=‘COLOR:#006600‘> √ 填写正确!</span>"; 
var name_flag=false;
var email_flag=false;
var password_flag=false;
var accept_flag=false;

$(function(){
	change_submit();	
	if(document.getElementById("agreement").checked){
	 alert("checkbox is checked");
	}
}); 

/*
 * 获取工程的路径
 */
function getRootPath() {
	var pathName = window.location.pathname.substring(1);
	var webName = pathName == ‘‘ ? ‘‘ : pathName.substring(0, pathName
			.indexOf(‘/‘));
	return window.location.protocol + ‘//‘ + window.location.host + ‘/‘
			+ webName + ‘/‘;
}
/*
 * 用户名检测
 */
function checkUserName(obj) {
	if (checks(obj.value) == false) {
		showInfo("username_notice", username_invalid);
	} else if (obj.value.length < 1) {
		showInfo("username_notice", username_empty);
	}else if (obj.value.length < 3) {
		showInfo("username_notice", username_shorter);
	} else if(obj.value.length>30){
		showInfo("username_notice", username_longer);
 }else { 	
		// 调用Ajax函数,向服务器端发送查询
 $.ajax({ //一个Ajax过程
 		type: "post", //以post方式与后台沟通
 		url :getRootPath()+"/register/checkUserName", //与此页面沟通
 		dataType:‘json‘,//返回的值以 JSON方式 解释
 		data: ‘userName=‘+obj.value, //发给的数据
 		success: function(json){//如果调用成功
 			if(json.flag){
 				showInfo("username_notice", username_have_register);
 			}else {
 				showInfo("username_notice", username_can_register);
 				name_flag=true;
 				change_submit();
 				return;
 			}
 		} 	
 });	
	}
	name_flag=false;
	change_submit();
} 
/*
 * 用户名检测是否包含非法字符
 */
function checks(t) {
	szMsg = "[#%&‘\"\,;:=!^@]"
	for (i = 1; i < szMsg.length + 1; i++) {
		if (t.indexOf(szMsg.substring(i - 1, i)) > -1) {
			return false;
		}
	}
	return true;
}
/*
 * 邮箱检测
 */
 function checkEmail(email) {
	var re = /^(w-*.*)+@(w-?)+(.w{2,})+$/
	if (email.value.length < 1) {
		showInfo("email_notice", email_empty);
	} else if (!re.test(email.value)) {
		email.className = "FrameDivWarn";
		showInfo("email_notice", email_invalid);		
	} else {
		// 调用Ajax函数,向服务器端发送查询
 $.ajax({ //一个Ajax过程
 		type: "post", //以post方式与后台沟通
 		url :getRootPath()+"/register/checkEmail", //与此页面沟通
 		dataType:‘json‘,//返回的值以 JSON方式 解释
 		data: ‘email=‘+email.value, //发给的数据
 		success: function(json){//如果调用成功
 			if(json.flag){
 				showInfo("email_notice", email_have_register);
 			}else {
 				showInfo("email_notice", email_can_register);
 				email_flag=true;
 				change_submit();
 				return;
 			}
 		} 	
 });
	}
	email_flag=false;
	change_submit();
} 
 


/*
 * 密码检测
 */
 function checkPassword( password ) 
 { 
	 if(password.value.length < 1){
		 password_flag=false;
  showInfo("password_notice",password_empty); 
	 }else if ( password.value.length < 6 ) 
 { 
		 password_flag=false;
  showInfo("password_notice",password_shorter_s); 
 } 
 else if(password.value.length > 30){ 
 	 password_flag=false;
  showInfo("password_notice",password_shorter_m); 
  } 
 else 
 { 
  showInfo("password_notice",info_right); 
 } 
	 change_submit();
 } 
 
 /*
 * 密码确认检测
 */
 function checkConformPassword(conform_password) 
 { 
	 password = $("#password").val(); 
	 if (password.length < 1) {		 
  showInfo("conform_password_notice",password_empty); 
		 
	 } else if ( conform_password.value!= password) 
 { 
  showInfo("conform_password_notice",confirm_password_invalid); 
 } 
 else 
 { 
  showInfo("conform_password_notice",info_right); 
			password_flag=true;
			change_submit();
			return;
 } 
	 password_flag=false;
	change_submit();

 }
 
 /*
 * 检测密码强度检测
 */
 function checkIntensity(pwd) 
 { 
 var Mcolor = "#FFF",Lcolor = "#FFF",Hcolor = "#FFF"; 
 var m=0; 
 
 var Modes = 0; 
 for (i=0; i<pwd.length; i++) 
 { 
 var charType = 0; 
 var t = pwd.charCodeAt(i); 
 if (t>=48 && t <=57) 
 { 
 charType = 1; 
 } 
 else if (t>=65 && t <=90) 
 { 
 charType = 2; 
 } 
 else if (t>=97 && t <=122) 
 charType = 4; 
 else 
 charType = 4; 
 Modes |= charType; 
 } 
 
 for (i=0;i<4;i++) 
 { 
 if (Modes & 1) m++; 
 Modes>>>=1; 
 } 
 
 if (pwd.length<=4) 
 { 
 m = 1; 
 } 
 
 switch(m) 
 { 
 case 1 : 
 Lcolor = "2px solid red"; 
 Mcolor = Hcolor = "2px solid #DADADA"; 
 break; 
 case 2 : 
 Mcolor = "2px solid #f90"; 
 Lcolor = Hcolor = "2px solid #DADADA"; 
 break; 
 case 3 : 
 Hcolor = "2px solid #3c0"; 
 Lcolor = Mcolor = "2px solid #DADADA"; 
 break; 
 case 4 : 
 Hcolor = "2px solid #3c0"; 
 Lcolor = Mcolor = "2px solid #DADADA"; 
 break; 
 default : 
 Hcolor = Mcolor = Lcolor = ""; 
 break; 
 } 
 document.getElementById("pwd_lower").style.borderBottom = Lcolor; 
 document.getElementById("pwd_middle").style.borderBottom = Mcolor; 
 document.getElementById("pwd_high").style.borderBottom = Hcolor; 
 }
 
//--------------注册协议复选框状态检测---------------------// 
 function checkAgreement(obj){ 	 
	if(document.getElementById("agreement").checked){
		 showInfo("agreement_notice",agreement_yes); 
		accept_flag=true;
		change_submit();
		}else{
		showInfo("agreement_notice",agreement_no); 
			
		}
/*	 if($("#agreement").attr("checked")=="checked"){
		 alert(‘选中‘);
	 }*/
/* if (document.formUser.agreement.checked==false) 
 { 
 showInfo("agreement_notice",checkAgreement); 
 } else { 
 showInfo("agreement_notice",info_right); 
 } */ 
 }
 /*
 * 按钮状态设置
 */ 
function change_submit() 
{ 	
	if(name_flag&&email_flag&&password_flag&&accept_flag){
		 document.forms[‘formUser‘].elements[‘Submit1‘].disabled = ‘‘; 
	}
 else 
 { 
  document.forms[‘formUser‘].elements[‘Submit1‘].disabled = ‘disabled‘; 
 } 
} 
/*
 * 公用程序
 */ 
 function showInfo(target,Infos){ 
 document.getElementById(target).innerHTML = Infos; 
 } 
 function showclass(target,Infos){ 
 document.getElementById(target).className = Infos; 
 }

2、注册页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="<%=request.getContextPath()%>/js/jquery-1.11.3.min.js" ></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/js/registerCheck.js" ></script>
<title>Ajax+SpringMVC+Spring+MyBatis+Mysql注册验证实例</title>
</head>
<body> 
<div id="reg"> 
<FORM name="formUser" action="<%=request.getContextPath()%>/register/successed" method=post> 
 <BR> 
 <TABLE width="100%" align=center border=0> 
 <TBODY> 
 <TR> 
 <TD align=right width="15%"><STRONG>用户名:</STRONG></TD> 
 <TD width="57%"><INPUT id="username" onBlur="checkUserName(this)" 
 name="username"> 
  <SPAN id="username_notice" >*</SPAN></TD> 
 </TR> 
 <TR> 
 <TD align=right><STRONG>邮箱:</STRONG></TD> 
 <TD><INPUT id="email" onBlur="checkEmail(this)" name="email"> 
  <SPAN id=email_notice >*</SPAN></TD> 
 </TR> 
 <TR> 
 <TD align=right><STRONG>密码:</STRONG></TD> 
 <TD><INPUT id="password" onBlur="checkPassword(this)" 
 onkeyup="checkIntensity(this.value)" type="password" name="password"> 
  <SPAN 
 id=password_notice >*</SPAN></TD> 
 </TR> 
 <TR> 
 <TD align=right><STRONG>密码强度:</STRONG></TD> 
 <TD><TABLE cellSpacing=0 cellPadding=1 width=145 border=0> 
  <TBODY> 
  <TR align=middle> 
  <TD id=pwd_lower width="33%">弱</TD> 
  <TD id=pwd_middle width="33%">中</TD> 
  <TD id=pwd_high width="33%">强</TD> 
  </TR> 
  </TBODY> 
 </TABLE></TD> 
 </TR> 
 <TR> 
 <TD align=right><STRONG>确认密码:</STRONG></TD> 
 <TD><INPUT id="conform_password" onBlur="checkConformPassword(this)" 
 type="password" name="confirm_password"> 
  <SPAN id=conform_password_notice >*</SPAN></TD> 
 </TR> 
 <TR> 
 <TD> </TD> 
 <TD><LABEL> 
  <INPUT type="checkbox" id="agreement" onclick="checkAgreement(this)"> 
  <B>我已看过并接受《<a href="#">用户协议</a>》<SPAN id=agreement_notice >*</SPAN></B></LABEL></TD> 
 </TR> 
 <TR> 
 <TD ><INPUT type=hidden value=act_register name=act></TD> 
 <TD ><input type=submit value=确认注册 name="Submit1" class="anniu" disabled></TD> 
 </TR> 
 <TR> 
 <TD colSpan=2> </TD> 
 </TR> 
 </TBODY> 
 </TABLE> 
</FORM> 
</div>  
</body>
</html>

3、注册成功页面

<%@ page language="java" contentType="text/html" pageEncoding="UTF-8"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>用户注册成功</title>
</head>
<body>
<center>
<h1><b>欢迎新用户</b></h1>
用户名：${requestScope.username}<br> 
邮箱：${requestScope.email}<br> 
</center>
</body>
</html>

四、Controller编写

使用SpringMVC就得要自己来写Controller，拦截各个请求，处理后再返回给请求者，放在src下的。com.lin.controller

package com.lin.controller;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONObject;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import com.lin.domain.User;
import com.lin.domain.UserExample;
import com.lin.domain.UserExample.Criteria;
import com.lin.service.IRegisterService;

@Controller
public class RegisterController {
	private static Logger logger = Logger.getLogger(RegisterController.class); 
	@Resource
	private IRegisterService registerService;	
	
	@RequestMapping({"/register","/"})
	public String register(){ 
		return "register";
	}
	@RequestMapping(value="/register/checkUserName",method = RequestMethod.POST)
	public String checkUserName(HttpServletRequest request, HttpServletResponse response) throws IOException{
		String userName=(String)request.getParameter("userName");			
		//检验用户名是否存在
		UserExample userExample=new UserExample();
		Criteria conditionCri = userExample.createCriteria();
		conditionCri.andUserNameEqualTo(userName);		
	 int num=registerService.countByExample(userExample);
	 //用户名是否存在的标志
	 boolean flag=false;
	 if(num>0){
	 	flag=true;
	 }		
		//将数据转换成json
		Map<String,Object> map = new HashMap<String,Object>(); 
		map.put("flag", flag); 		 
		String json = JSONObject.fromObject(map).toString(); 		
		//将数据返回
		response.setCharacterEncoding("UTF-8");
		response.flushBuffer();
		response.getWriter().write(json);
		response.getWriter().flush(); 
		response.getWriter().close();
		return null;
	}
	
	@RequestMapping(value="/register/checkEmail",method = RequestMethod.POST)
	public String checkEmail(HttpServletRequest request, HttpServletResponse response) throws IOException{
		String email=(String)request.getParameter("email");			
		//检验邮箱是否存在
		UserExample userExample=new UserExample();
		Criteria conditionCri = userExample.createCriteria();
		conditionCri.andUserEmailEqualTo(email);		
	 int num=registerService.countByExample(userExample);
	 //用户名是否存在的标志
	 boolean flag=false;
	 if(num>0){
	 	flag=true;
	 }		
		//将数据转换成json
		Map<String,Object> map = new HashMap<String,Object>(); 
		map.put("flag", flag); 		 
		String json = JSONObject.fromObject(map).toString(); 		
		//将数据返回
		response.setCharacterEncoding("UTF-8");
		response.flushBuffer();
		response.getWriter().write(json);
		response.getWriter().flush(); 
		 




                                        
                        
                        热心网友
                        时间：2022-04-08 05:35
                    
                    两种方式：1、通过response写回去，例如response.getWriter().write("1111111");2、可以通过注解@ResponseBody写回去，例如：@ResponseBody@RequestMapping("/findById.do")public Person findById(String id，HttpServletResponse response)                    
                                                            
                        
                        热心网友
                        时间：2022-04-08 06:53
                    
                    两种方式：1、通过response写回去，例如response.getWriter().write("1111111");2、可以通过注解@ResponseBody写回去，例如：@ResponseBody@RequestMapping("/findById.do")public Person findById(String id，HttpServletResponse response) {Person person = new Person();
person.setName("shaye");....return person;
}

如何在springmvc+mybatis中做ajax请求

1、用到的JAR包

2、需要的外部js

3、项目结构

二、编程

2.1 java代码

1、domain层

2、dao层

3、service层

2.2 配置文件

1、mappp文件配置

2、mybatis配置,没有其实也行，因为都 在spring中进行配置了，但是保留一下，以免要用，mybatis-config.xml放在config下面

3、spingMVC配置

4、spring配置：application.xml放在config下面

5、日志打印配置：log4j.properties放在config下面

三、web页面编写

1、使用到的js编程

2、注册页面

3、注册成功页面

四、Controller编写

2、mybatis配置,没有其实也行，因为都在spring中进行配置了，但是保留一下，以免要用，mybatis-config.xml放在config下面