【Spring】Spring+SpringMVC+MyBatis框架的搭建
1,SSM的简介
SSM(Spring+SpringMVC+MyBatis)框架集由Spring、SpringMVC、MyBatis三个开源框架整合而成,常作为数据源较简单的web项目的框架。
其中spring是一个轻量级的控制反转(IoC)和面向切面(AOP)的容器框架。
SpringMVC分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。
MyBatis是一个支持普通SQL查询,存储过程和高级映射的优秀持久层框架。
2,SSM的搭建
笔者的数据库是Oracle,开发工具为Eclipse,项目的结构如下:
首先配置Spring+MyBatis部分,关于MyBatis的配置可以参见MyBatis之如何配置。
sqlmap-config.xml 文件
- <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//ibatis.apache.org//DTD Config 3.0//EN" "http://ibatis.apache.org/dtd/ibatis-3-config.dtd">
- <configuration>
- <!-- 加载SQL定义文件 -->
- <mappers>
- <mapper resource="cn/shop/mapper/UserMapper.xml" />
- </mappers>
- </configuration>
sqlmap-config.xml
UserMapper.xml 文件
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE mapper PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN"
- "http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd">
- <mapper namespace="cn.shop.dao.UserMapper">
- <!--用户登录-->
- <select id="login" parameterType="Map" resultType="cn.shop.bean.User">
- <!--sq_s_user 是专门为user表创建的序列-->
- select * from s_user where name=#{name} and password=#{password}
- </select>
- </mapper>
UserMapper.xml
UserMapper.java 文件
- package cn.shop.dao;
- import java.util.Map;
- import org.springframework.stereotype.Component;
- import cn.shop.bean.User;
- public interface UserMapper {
- /**
- * 用户登录
- * @param user 需要登录的用户信息,其中必须包含两个key,name和password。
- * @return 用户登录成功后的信息
- */
- User login(Map map);
- }
UserMapper.java
User.java 文件
- package cn.shop.bean;
- import java.util.Date;
- public class User {
- private Integer id;
- private String name;
- private String password;
- private Date register_time;
- public User() {
- super();
- }
- public User(Integer id, String name, String password, Date register_time) {
- super();
- this.id = id;
- this.name = name;
- this.password = password;
- this.register_time = register_time;
- }
- public Integer getId() {
- return id;
- }
- public void setId(Integer id) {
- this.id = id;
- }
- public String getName() {
- return name;
- }
- public void setName(String name) {
- this.name = name;
- }
- public String getPassword() {
- return password;
- }
- public void setPassword(String password) {
- this.password = password;
- }
- public Date getRegister_time() {
- return register_time;
- }
- public void setRegister_time(Date register_time) {
- this.register_time = register_time;
- }
- }
User.java
dispatcherServlet.xml 文件
- <?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:jdbc="http://www.springframework.org/schema/jdbc"
- xmlns:jee="http://www.springframework.org/schema/jee"
- xmlns:tx="http://www.springframework.org/schema/tx"
- xmlns:aop="http://www.springframework.org/schema/aop"
- xmlns:mvc="http://www.springframework.org/schema/mvc"
- xmlns:util="http://www.springframework.org/schema/util"
- xmlns:jpa="http://www.springframework.org/schema/data/jpa"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
- http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
- http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.1.xsd
- http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd
- http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
- http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
- http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
- http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
- http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd">
- <!--
- 开启注解扫描
- -->
- <context:component-scan base-package="cn.shop"></context:component-scan>
- <!--
- 开启mvc注解扫描
- -->
- <mvc:annotation-driven/>
- <!--定义视图 通过internalResourceView来表示 使用的是Servlet/jsp技术-->
- <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
- <property name="viewClass">
- <value>org.springframework.web.servlet.view.InternalResourceView</value>
- </property>
- <!--jsp存放的目录-->
- <property name="prefix">
- <value>/</value>
- </property>
- <!--jsp文件的后缀-->
- <property name="suffix">
- <value>.jsp</value>
- </property>
- </bean>
- <!-- 获取properties配置文件 -->
- <bean id="config" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
- <property name="locations">
- <list>
- <value>classpath:db-config.properties</value>
- </list>
- </property>
- </bean>
- <!-- 获取数据源 -->
- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
- <property name="url">
- <value>${db.url}</value>
- </property>
- <property name="username">
- <value>${db.username}</value>
- </property>
- <property name="password">
- <value>${db.password}</value>
- </property>
- <property name="driverClassName">
- <value>${db.dirverClass}</value>
- </property>
- </bean>
- <bean id="ssf" class="org.mybatis.spring.SqlSessionFactoryBean">
- <property name="configLocation" value="classpath:sqlmap-config.xml"></property>
- <property name="dataSource" ref="dataSource"></property>
- </bean>
- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
- <property name="sqlSessionFactoryBeanName" value="ssf"></property>
- <property name="basePackage" value="cn.shop.dao"></property>
- </bean>
- </beans>
dispatcherServlet.xml
db-config.properties 文件
- db.url=jdbc:oracle:thin:@localhost:1521:xe
- db.username=system
- db.password=517839
- db.dirverClass=oracle.jdbc.OracleDriver
db-config.properties
配置到这里就完成了Spring和MyBatis的结合,接下来就是和SpringMVC的整合了。关于SpringMVC的配置可以参考基于注解实现SpringMVC+MySQL
web.xml 文件
- <?xml version="1.0" encoding="UTF-8"?>
- <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
- <display-name>shop</display-name>
- <welcome-file-list>
- <welcome-file>index.html</welcome-file>
- </welcome-file-list>
- <!-- 这里是一个总控制器 -->
- <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:dispatcherServlet.xml</param-value>
- </init-param>
- </servlet>
- <servlet-mapping>
- <servlet-name>spring</servlet-name>
- <url-pattern>*.do</url-pattern>
- </servlet-mapping>
- <!-- 解决POST提交乱码问题 -->
- <filter>
- <filter-name>EncodingName</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>EncodingName</filter-name>
- <url-pattern>*.do</url-pattern>
- </filter-mapping>
- </web-app>
web.xml
UserService.java 文件
- package cn.shop.service;
- import java.util.Map;
- import javax.annotation.Resource;
- import org.springframework.stereotype.Service;
- import cn.shop.bean.User;
- import cn.shop.dao.UserMapper;
- @Service
- public class UserService {
- @Resource
- private UserMapper userMapper;
- public User userlogin(Map<String,String> map){
- return userMapper.login(map);
- }
- }
UserService.java
编写完UserService.java文件后,我们可以进行一些测试,否则以后出错不便于调试:
新建一个cn.user.test.UserTest.java文件:
- public class UserTest {
- @Test
- public void testName1() throws Exception {
- ApplicationContext ac=new ClassPathXmlApplicationContext("dispatcherServlet.xml");
- Map<String,String> map=new HashMap<String,String>();
- map.put("name","jame");
- map.put("password","");
- UserService userService= ac.getBean("userService",UserService.class);
- User user=userService.userlogin(map);//测试jame,123456
- System.out.println(user);
- }
- }
UserController.java 文件
- package cn.shop.controller;
- import java.util.HashMap;
- import java.util.Map;
- import javax.annotation.Resource;
- 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 cn.shop.bean.User;
- import cn.shop.service.UserService;
- @Controller
- public class UserController {
- @Resource
- private UserService userService;
- @RequestMapping("/login.do")
- public ModelAndView userLogin(String uname,String upass){
- Map<String,String> map=new HashMap<String,String>();
- map.put("name", uname);
- map.put("password", upass);
- User user = userService.userlogin(map);
- ModelAndView mav=new ModelAndView();
- if(user!=null){
- mav.getModel().put("loginresult", "登录成功");
- }else{
- mav.getModel().put("loginresult", "登录失败");
- }
- mav.setViewName("userLoginResult");
- return mav;
- }
- }
UserController.java
@Resource注解和@Autowired注解都可以取出IOC中容器的对象,关于两者的区别可以查看Spring注解@Resource和@Autowired区别对比.
login.jsp 文件
- <%@ 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>用户登录</title>
- </head>
- <body>
- <h1>用户登录</h1>
- <form action="login.do" method="POST">
- 用户名:<input type="text" name="uname"/><br/>
- 密码:<input type="password" name="upass"/><br/>
- <input type="submit" value="登录"/>
- </form>
- </body>
- </html>
login.jsp
userLoginResult.jsp文件
- <%@ 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>登录结果页面</title>
- </head>
- <body>
- ${loginresult}
- </body>
- </html>
userLoginResult.jsp
到这里就完成了Spring+SpringMVC+MyBatis的配置了。
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