springmvc+mybatis登入功能
阿新 • • 發佈：2019-01-02
1.資料庫設計
create database userDB default charset=utf8;
use userDB;
create table user (
id int(20) primary key auto_increment,
username varchar(20) not null,
password varchar(20) not null)
engine=InnoDB default charset=utf8;
insert into user values(1,"xiao","123456");
commit;
3.web.xml
4.spring.xml<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <servlet> <servlet-name>spring</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring*.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <filter> <filter-name>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>Character Encoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> </web-app>
5.spring-mybatis.xml<?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" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd "> <!-- 引入屬性檔案 --> <context:property-placeholder location="classpath:database.properties" /> <!-- 自動掃描(自動注入) --> <context:component-scan base-package="service" /> </beans>
<?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:tx="http://www.springframework.org/schema/tx" 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/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
">
<!-- 配置資料來源 -->
<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<property name="url" value="${jdbc_url}" />
<property name="username" value="${jdbc_username}" />
<property name="password" value="${jdbc_password}" />
</bean>
<!-- myBatis檔案 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自動掃描entity目錄, 省掉Configuration.xml裡的手工配置 -->
<property name="mapperLocations" value="classpath:dao/mapping/*.xml" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
<!-- 配置事務管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 攔截器方式配置事物 -->
<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="login" propagation="SUPPORTS" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="transactionPointcut" expression="execution(* service.impl.*.*(..))" />
<aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />
</aop:config>
<!-- 配置druid監控spring jdbc -->
<bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">
</bean>
<bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
<property name="patterns">
<list>
<value>service.*</value>
</list>
</property>
</bean>
<aop:config>
<aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />
</aop:config>
</beans>6.spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- 自動掃描controller包下的所有類，使其認為spring mvc的控制器 -->
<context:component-scan base-package="controller" />
<!-- 對模型檢視名稱的解析，即在模型檢視名稱新增前後綴 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" />
<mvc:annotation-driven/>
<mvc:default-servlet-handler/>
</beans>7.database.properties
jdbc_url=jdbc:mysql://localhost:3306/userDB?useUnicode=true&characterEncoding=UTF-8
jdbc_username=root
jdbc_password=package entity;
public class User {
private Integer id;
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}9.資料訪問層介面
package dao;
import entity.User;
public interface IUserDao {
public User selectUser(User user);
}
10.資料訪問層mapper(包名：dao.mapping)
<?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="dao.IUserDao">
<select id="selectUser" resultType="entity.User" parameterType="entity.User">
select
id,username,password
from user
where username=#{username} and password=#{password}
</select>
</mapper>package service;
import entity.User;
public interface IUserService {
public boolean login(User user);
}
12.業務層實現類
package service.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import service.IUserService;
import dao.IUserDao;
import entity.User;
@Service
public class UserServiceImpl implements IUserService{
@Autowired
private IUserDao userDao;
@Override
public boolean login(User user) {
return userDao.selectUser(user)==null?false:true;
}
}
13.控制器
package controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import service.IUserService;
import entity.User;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private IUserService userService;
@ResponseBody
@RequestMapping(value="/ret")
public String login(User user){
return String.valueOf(userService.login(user));
}
}14.登入介面（主意引入jquery.js）
<%@ 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">
<title>登入</title>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
function doLogin(){
$.post("user/ret",$("#loginForm").serialize(),function(data){
if(data=="true"){
alert("登入成功!");
location="success.jsp";
}else{
alert("登入失敗!");
}
});
}
</script>
</head>
<body>
<form action="" method="post" id="loginForm">
<table>
<tbody>
<tr>
<th>使用者名稱：</th><td><input name="username" /></td>
</tr>
<tr>
<th>密碼：</th><td><input name="password" type="password"/></td>
</tr>
<tr>
<td colspan="2"><input type="button" value="登入" onclick="doLogin()"/><input type="reset" value="重置"/></td>
</tr>
</tbody>
</table>
</form>
</body>
</html>15.成功頁面
<%@ 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">
</head>
<body>
登入成功！
</body>
</html>