SSM框架搭建

1，所需的包

2，配置文件，applicationContext放在src目錄下，web.xml和springMVC-servlet.xml放在WEB-INF目錄下

1）web.xml：

<?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_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<welcome-file-list>
	<welcome-file>index.html</welcome-file>
	</welcome-file-list>
	<display-name>ssm</display-name>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>


	<servlet>
		<!-- servlet的名字決定了springMVC配置文件的名字，springMVC配置文件的名字應爲servlet-name+"-servlet.xml" -->
		<servlet-name>springMVC</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>3</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springMVC</servlet-name>
		<url-pattern>*.html</url-pattern>
	</servlet-mapping>
</web-app>

2）springMVC-servlet.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"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	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">
	<!-- 掃描web包，應用Spring的註解 -->
	<context:component-scan base-package="com" />
	<!-- 配置視圖解析器，將ModelAndView及字符串解析爲具體的頁面 -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver"
		p:viewClass="org.springframework.web.servlet.view.JstlView" p:prefix="/"
		p:suffix=".jsp" />
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />
	<!-- 這是攔截器，如果不需要攔截器則註釋掉 juong增加 -->
	<!--<mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**"/>
            <bean id="loginInterceptor" class="com.yq.util.LoginInterceptor"/>
        </mvc:interceptor>
    </mvc:interceptors>-->
    
</beans>

3）applicationContext.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"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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/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">
	<!-- 掃描類包，將標註Spring註解的類自動轉化Bean，同時完成Bean的注入 -->
	<context:component-scan base-package="com.*.dao" />
	<context:component-scan base-package="com.*.service" />

	<!-- 配置數據源 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close" 
		p:driverClassName="com.mysql.jdbc.Driver"
		p:url="jdbc:mysql://localhost:3306/ssm" 
		p:username="root"
		p:password="root">
		<property name="validationQuery">
			<value>SELECT 1</value>
		</property>
		<property name="testOnBorrow">
			<value>true</value>
		</property>
	</bean>	
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="mapperLocations" value="classpath:com/*/dao/*.xml"/>
	</bean>
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.*.dao" />
	</bean>
	<!-- 配置事務管理器 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
		p:dataSource-ref="dataSource" />
	<!-- 通過AOP配置提供事務增強，讓service包下所有Bean的所有方法擁有事務 -->
	<aop:config proxy-target-class="true">
		<aop:pointcut id="serviceMethod"
			expression="execution(* com.*.service..*(..)))" />
		<aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice" />
	</aop:config>
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="*" />
		</tx:attributes>
	</tx:advice>
</beans>

3，項目結構

4，java代碼

1）UserCtrl.java:

package com.hx.controller;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.hx.entity.UserEntity;
import com.hx.service.UserService;

@Controller
@RequestMapping("/wap")
public class UserCtrl {
	@Autowired
	private UserService service;
	
	@RequestMapping("/login")
	public String login(){
		return "/wap/login";
	}
	
	@RequestMapping("/userCenter")
	public ModelAndView doLogin(String userName,String password){
		System.out.println(userName);
		ModelAndView m =new ModelAndView("/wap/index");
		Map<String,String> map =new HashMap<String,String>();
		map.put("userName", userName);
		map.put("password", password);
		UserEntity user = service.doLogin(map);
		if(user!=null){
			m.addObject("userName", user.getUser_name());
		}
		return m;
	}
}

2)UserService.java:

package com.hx.service;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.hx.dao.UserDao;
import com.hx.entity.UserEntity;

@Service
public class UserService {
	@Autowired
	private UserDao userDao;
	
	public UserEntity doLogin(Map<String,String> map){
		return userDao.findUser(map);
	}
}

3)UserEntity.java:

package com.hx.entity;

public class UserEntity {
	private Integer id;
	private String user_name;
	private String password;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getUser_name() {
		return user_name;
	}
	public void setUser_name(String user_name) {
		this.user_name = user_name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	
}

4）UserDao.java:

package com.hx.dao;

import java.util.Map;

import com.hx.entity.UserEntity;

public interface UserDao {
	public UserEntity findUser(Map<String,String> map);
}

UserDao.xml:

<?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.hx.dao.UserDao">
	<select id="findUser" parameterType="java.util.Map" resultType="com.hx.entity.UserEntity">
		select * from user where user_name =#{userName}
		<if test="password!='' and password!=null">
			and password =#{password}
		</if>
	</select>
</mapper>

5，jsp代碼

1)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>
<html>
  <head>
  	<!-- 定義當前頁面的路徑 -->
    <base href="<%=basePath%>wap/">
    <title>簡單登錄頁面</title>
  </head>
  <body>
   	<form action="userCenter.html" method="POST">
   		<input name="userName" type="text"/>
   		<br/>
   		<input name="password" type="password"/>
   		<br/>
   		<input value="提交" type="submit"/>
   		<input value="重置" type="reset"/>
   	</form>
  </body>
</html>

2)index.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>
<html>
  <head>
  	<base href="<%=basePath%>wap/">
    <title>簡單首頁</title>
  </head>
  
  <body>
   ${userName}...你好，歡迎登錄。
  </body>
</html>

完成上面所有的代碼後，在mysql裏面建一個名爲ssm的庫，在庫裏面建一張user表，添加三個字段id，user_name和password，再添加一條測試數據。然後將項目部署到tomcat，訪問http://localhost/ssm/wap/login.html（端口要設置爲80，否則要加端口號）訪問測試。