spring+springmvc+mybatis框架注解版搭建

ssm框架搭建配置文件如下图所示

主要配置web.xml, bean.xml,conf.xml下面是代码展示

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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">  <display-name></display-name>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>/WEB-INF/bean.xml</param-value>  </context-param>  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <servlet>    <servlet-name>springmvc</servlet-name>    <servlet-class>            org.springframework.web.servlet.DispatcherServlet        </servlet-class>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>springmvc</servlet-name>    <url-pattern>*.action</url-pattern>  </servlet-mapping></web-app>

bean.xml

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="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 name="url" value="jdbc:mysql://localhost:3306/pubs10" /><property name="username" value="root" /><property name="password" value="mysql" />    </bean><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="configLocation" value="classpath:conf.xml" /><property name="dataSource" ref="dataSource" /></bean>    <!-- <bean id="user1Dao" class="it.com.dao.User1Dao" autowire="byType">      <property name="sf" ref="sqlSessionFactory"></property>    </bean> --></beans>

conf.xml

<?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 class="it.com.dao.IusersDao"></mapper></mappers>    </configuration>

mybatis  注解接口

package it.com.dao;import java.util.List;import java.util.Map;import org.apache.ibatis.annotations.Param;import org.apache.ibatis.annotations.Select;import org.apache.ibatis.annotations.Update;public interface IusersDao {@Select("select * from authors")public List<Map> findAll();@Select("select username,userpwd,email,logo from users")public List<Map> selectAllUser();@Update("update users set userpwd=#{userpwd},email=#{email},logo=#{logo} where username=#{username}")public void updateUsers(@Param("username") String username,@Param("userpwd") String userpwd,@Param("email") String email,@Param("logo") String logo);}

实现类

package it.com.dao;import java.util.List;import java.util.Map;import javax.annotation.Resource;import org.apache.ibatis.session.SqlSession;import org.apache.ibatis.session.SqlSessionFactory;import org.springframework.stereotype.Repository;@Repositorypublic class User1Dao {@ResourceSqlSessionFactory sf;public List<Map> findAll(){SqlSession session = sf.openSession();//IusersDao id =sf.openSession().getMapper(IusersDao.class);//List list= id.findAll();List<Map> list =session.getMapper(IusersDao.class).findAll();return list;}public SqlSessionFactory getSf() {return sf;}public void setSf(SqlSessionFactory sf) {this.sf = sf;}public List<Map> findAllUser(){SqlSession session = sf.openSession();List<Map> list = session.getMapper(IusersDao.class).selectAllUser();return list;}public void updateUsers(String username,String userpwd,String email,String logo){SqlSession session =sf.openSession();session.getMapper(IusersDao.class).updateUsers(username, userpwd, email, logo);}}

action注解，相当于原先的severlet

package it.com.action;import java.util.List;import java.util.Map;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import it.com.dao.User1Dao;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;@Controllerpublic class Usersaction {@Resource   User1Dao ud;@RequestMapping(value="selectUsersAll.action")   public ModelAndView selectUsersAll(HttpServletRequest request,HttpServletResponse response){   List<Map> list=ud.findAll();   //System.out.println(list);   //request.getSession().setAttribute("list", list);   return new ModelAndView("show.jsp","list",list);   }@RequestMapping(value="selectAllUser.action")   public ModelAndView selectAllUser(HttpServletRequest request,HttpServletResponse response){List<Map> list = ud.findAllUser();return new ModelAndView("x1.jsp","list",list);  }@RequestMapping(value="updateusers.action")   public ModelAndView updateusers(HttpServletRequest request,HttpServletResponse response){   String username=request.getParameter("username");   String userpwd = request.getParameter("userpwd");   String email = request.getParameter("email");   String logo = request.getParameter("logo");      System.out.println(username+""+userpwd+""+email+""+logo);   ud.updateUsers(username, userpwd, email, logo);   List<Map> list = ud.findAllUser();   return new ModelAndView("x1.jsp","list",list);}}

上面代码中猴头标记的部分相当于配置文件中bean的bytape和byname，如果配置文件中写了，就不需要在这里写了。个人建议mybatis采用配制文件写法，spring action采用注解的写法。