林炳文Evankaka原创作品。转载请注明出处http://blog.csdn.net/evankaka
摘要：这几天研究了下Ajax注册的方法，通过在注册时输入用户名或邮箱等，就可以判断这个用户是否存在，以免用户来注册，然后提交了，系统才提示该用户名或邮箱不可用。使用Ajax便可实现这一功能，看了网上的都是php的，想想索性来写一个SpringMVC+Spring+Mybatis的。文章内容用到了很多技术，包括javascript、jquery、json、e表达式等。
先来看看最终效果：
注册成功的样子：
注册过程中参数的检验：
下面，让我们开始这次的编程吧！
首先，数据库准备，新建一张用户表，并自己插入一些数据
CREATE TABLE
t_user
(
USER_ID INT NOT NULL AUTO_INCREMENT,
USER_NAME CHAR(30) NOT NULL,
USER_PASSWORD CHAR(10) NOT NULL,
USER_EMAIL CHAR(30) NOT NULL,
PRIMARY KEY (USER_ID)
)
ENGINE=InnoDB DEFAULT CHARSET=utf8;
好，数据库建好了，接下来就是整个工程了。
一、工程整体
项目类型：Dynamic Web Project
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
工程的其它参数：
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：
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
然后把各个都展开：
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
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="[email protected]" />
</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
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
$.ajax({ //一个Ajax过程
type: "post", //以post方式与后台沟通
url :getRootPath()+"/register/checkUserName", //与此页面沟通
dataType:‘json‘,//返回的值以 JSON方式 解释
data: ‘userName=‘+obj.value, //发给的数据
success: function(json){//如果调用成功
if(json.flag){
showInfo("username_notice", username_have_register);
}else {
showInfo("username_notice", username_can_register);
name_flag=true;
change_submit();
return;
}
}
});
}
name_flag=false;
change_submit();
}
/*
* 用户名检测是否包含非法字符
*/
function checks(t) {
szMsg = "[#%&\‘\"\\,;:=!^@]"
for (i = 1; i < szMsg.length + 1; i++) {
if (t.indexOf(szMsg.substring(i - 1, i)) > -1) {
return false;
}
}
return true;
}
/*
* 邮箱检测
*/
function checkEmail(email) {
var re = /^(\w-*\.*)[email protected](\w-?)+(\.\w{2,})+$/
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();
response.getWriter().close();
return null;
}
@RequestMapping(value="/register/successed")
public ModelAndView successed(HttpServletRequest request, HttpServletResponse response) throws IOException{
String username=(String)request.getParameter("username");
String email=(String)request.getParameter("email");
String password=(String)request.getParameter("password");
if(username==null||email==null||password==null){
return new ModelAndView("redirect:/register");
}
//新增用户插入数据库
User user=new User();
user.setUserName(username);
user.setUserEmail(email);
user.setUserPassword(password);
registerService.insert(user);
//将数据转换成
Map<String,Object> map = new HashMap<String,Object>();
map.put("username", username);
map.put("email", email);
map.put("password", password);
/* 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 new ModelAndView("successed",map);
}
}
五、结果分析
1、运行
2、然后来看看打印出来的sql语句：
这是要验证用户名：
每次输入后，移开鼠标后就验证，并返回结果
这是在验证邮箱：
3、最后还要看看数据库数据进去了没有：
这是还没注册之前的：
这是数据成功插入之后的”，我做了很多次，所以数据有点多。
版权声明：本文为博主林炳文Evankaka原创文章，未经博主允许不得转载。
时间： 2024-11-06 20:17:45