spring mvc + mybatis + mysql 整合的一個簡單的登錄例子

今天用spring跟mybatis整合寫了一個簡單的登錄例子，第一次整合，給自己做個筆記，可能註釋寫的有點少，做的不足的地方謝謝指出，也分享給需要的朋友，下面給出登錄失敗和成功的效果圖：

 

     這個登錄例子用的工具是myeclipse8.6+mysql5.1，使用到的技術有spring3.0+mybatis3.2.3+mybatis-spring-1.1.1(這個是spring跟mybatis整合的包)，項目的整體結構如圖：

 

    現在我們要做的就是在myeclipse工具裏新建一個web項目，並且添加spring 支持，不懂的朋友可以查看http://blog.csdn.net/ooliuyunoo/article/details/19908661

    項目新建完之後我們就把項目分次序把項目新建起來：

  1:在web.xml文件配置：

  

<?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>WEB-INF/classes/applicationContext.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

 

   2： 新建vo類，代碼如下：

     

package com.li.vo;

public class UserVO {
	private int id;
	private String name;
	private String pwd;
	public UserVO(){}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public String getPwd() {
		return pwd;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getName() {
		return name;
	}
	public void setId(int id) {
		this.id = id;
	}
	public int getId() {
		return id;
	}
}

 

    3：  新建UserDaoIMP接口：

package com.li.IMP;

import com.li.vo.UserVO;

public interface UserDaoIMP {
	public UserVO selectUser(UserVO uservo);
	public int insertUser(UserVO uservo);
	public int updaqteUser(UserVO uservo);
	public int deleteUserById(int user_id);
}

 

   4： 新建UserDaoIMP.xml配置文件：

<?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.li.IMP.UserDaoIMP">
		<select id="selectUser" parameterType="com.li.vo.UserVO" resultType="com.li.vo.UserVO">
			select * from user where name=#{name} and pwd=#{pwd}
		</select>
		<insert id="insertUser" parameterType="com.li.vo.UserVO" flushCache="true">
			insert into user(name,pwd) values(#{name},#{pwd})
		</insert>
		<update id="updateUser" parameterType="com.li.vo.UserVO">
			update user set name=#{name} where id=#{id}
		</update>
		<delete id="deleteUser" parameterType="int">
			delete from user where id=#{id}
		</delete>
	</mapper>

 

    5：新建UserServiceIMP服務接口：

package com.li.service;

import com.li.vo.UserVO;

public interface UserServiceIMP {
	public UserVO selectUser(UserVO uservo);
	public int insertUser(UserVO uservo);
	public int updaqteUser(UserVO uservo);
	public int deleteUserById(int user_id);
}

 

     6：新建UserService繼承服務接口：

package com.li.service;

import com.li.IMP.UserDaoIMP;
import com.li.vo.UserVO;

public class UserService implements UserServiceIMP {
	private UserDaoIMP userdao;
	public int deleteUserById(int userId) {
		// TODO Auto-generated method stub
		return this.deleteUserById(userId);
	}

	public int insertUser(UserVO uservo) {
		// TODO Auto-generated method stub
		return this.userdao.insertUser(uservo);
	}

	public UserVO selectUser(UserVO uservo) {
		// TODO Auto-generated method stub
		return this.userdao.selectUser(uservo);
	}

	public int updaqteUser(UserVO uservo) {
		// TODO Auto-generated method stub
		return this.userdao.updaqteUser(uservo);
	}

	public void setUserdaoIMP(UserDaoIMP userdaoIMP) {
		this.userdao = userdaoIMP;
	}

	public UserDaoIMP getUserdaoIMP() {
		return userdao;
	}

}

 

   7：新建一個登陸控制器：

package com.li.controller;

import java.util.HashMap;
import java.util.Map;

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

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import com.li.IMP.UserDaoIMP;
import com.li.service.UserService;
import com.li.vo.UserVO;

public class LoginController implements Controller {
	private UserService userService;
	public ModelAndView handleRequest(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		String name=request.getParameter("userName");
		String password=request.getParameter("password");
		//System.out.println("name-----"+name+"----password-----"+password);
		UserVO uservo=new UserVO();
		uservo.setName(name);
		uservo.setPwd(password);
		Map<String, Object> model=new HashMap<String, Object>();
		if(userService.selectUser(uservo)!=null){
			uservo=userService.selectUser(uservo);
			System.out.println("能查到信息");
			model.put("uservo", uservo);
			return new ModelAndView("WEB-INF/Main.jsp",model);
		}else{
			System.out.println("查不到信息");
			model.put("error", "用戶名或密碼錯誤");
			return new ModelAndView("WEB-INF/Login.jsp",model);
		}
		
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
	public UserService getUserService() {
		return userService;
	}


}

 

    8： 新建一個mybatis-config.xml 配置文件：

<?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>
<mappers>
    <mapper resource="com/li/IMP/UserDaoIMP.xml"/><!--mapper對應的xml配置文件-->
</mappers>
</configuration>

 

 9：配置 applicationCotext.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:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
		<property name="url" value="jdbc:mysql://localhost:3306/test"/>
		<property name="username" value="root"></property>
		<property name="password" value=""></property>
	</bean>
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="configLocation" value="classpath:mybatis-config.xml"/>
		<property name="dataSource" ref="dataSource"/>
	</bean>
	
	<bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
		<property name="mapperInterface" value="com.li.IMP.UserDaoIMP"/>
		<property name="sqlSessionFactory" ref="sqlSessionFactory"/>
	</bean>
	<bean id="userService" class="com.li.service.UserService">
		<property name="userdaoIMP" ref="userDao"></property>
	</bean>
	<bean id="LoginController" class="com.li.controller.LoginController">
		<property name="userService" ref="userService"></property>
	</bean>
	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
		<property name="mappings">
			<props>
				<prop key="login.do">LoginController</prop>
			</props>
		</property>
	</bean>

</beans>

 

     10： 修改index.jsp的body部份爲：

 

  <body>
    <jsp:forward page="WEB-INF/Login.jsp"></jsp:forward>
  </body>

 

    11：添加login.jsp:

 

  

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'Login.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    	<form action="login.do" method="post">
    		<label>用戶名：</label><input type="text" name="userName"/><br/>
    		<label>密碼：</label><input type="password" name="password"/><br/>
    		<input type="submit" value="login"/><input type="reset" value="reset"/>
    	</form>
    	${error}
  </body>
</html>

 

12: 添加main.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'Main.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    進入主頁面<br/>
    你的基本信息如下：<br/>
    id:${uservo.id}<br/>
    用戶名:${uservo.name}<br/>
    密碼:${uservo.pwd}<br/>
  </body>
</html>