SSM整合---实现全部用户查询

SSM整合

准备

1、创建工程

2、导入必须jar包

链接: https://pan.baidu.com/s/1nvCDQJ3 密码: v5xs

3、工程结构

代码

SqlMapConfig

<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<typeAliases>
	<!-- 批量扫描别名 -->
		<package name="cn.behle.hrs.po"/>
	</typeAliases>
</configuration>

applicationContext-dao

<?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:mvc="http://www.springframework.org/schema/mvc"
	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-3.2.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

<context:property-placeholder location="classpath:db.properties"/>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

　　　　<property name="driverClassName" value="${jdbc.driver}"/>
          　　<property name="url" value="${jdbc.url}"/>
　　　　　<property name="username" value="${jdbc.name}"/>
　　　　　<property name="password" value="${jdbc.password}"/>

	<property name="maxActive" value="30"/>
	<property name="maxIdle" value="5"/>
</bean>
<!-- 配置sqlSeesionFactory -->
<bean id="sqlSeesionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
	<property name="dataSource" ref="dataSource"></property>
	<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
</bean>

<!-- 配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
	<property name="basePackage" value="cn.behle.hrs.mapper"></property>
	<property name="sqlSessionFactoryBeanName" value="sqlSeesionFactory"></property>
</bean>

</beans>

　　

applicationContext-service

<?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:mvc="http://www.springframework.org/schema/mvc"
	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-3.2.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">
<!-- 注入bean -->
<bean id="userService" class="cn.behle.hrs.serviceImp.UserServiceImp"></bean>
</beans>

applicationContext-transaction

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	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-3.2.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

    <!-- 配置事务管理器 -->
    <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
    id="transactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 配置基于注解的声明式事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

　　springmvc

<?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:mvc="http://www.springframework.org/schema/mvc"
	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-3.2.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">
	<!-- 扫描包注解注册bean -->
 <context:component-scan base-package="cn.behle.hrs.controller"></context:component-scan>

	<!-- 注解驱动 -->
	<mvc:annotation-driven></mvc:annotation-driven>

	 <!-- 配置jsp 显示ViewResolver -->
     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
</beans>

　　db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/hrs
jdbc.username=root
jdbc.password=123456

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">
  <display-name>HRS</display-name>
  <!-- 加载spring -->
 <context-param>
 	<param-name>contextConfigLocation</param-name>
 	<param-value>/WEB-INF/classes/spring/applicationContext-*.xml</param-value>
 </context-param>
 <listener>
 	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>

 <!-- 配置springmvc -->
 <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>
			org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
		<init-param>
      		<param-name>contextConfigLocation</param-name>
       		<param-value>classpath:spring/springmvc.xml</param-value>
        </init-param>
 </servlet>

 <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>

 <!-- 编码过滤器 -->
<filter>
        <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

<!-- jstl标签配置 -->
  <jsp-config>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
    <taglib-location>/WEB-INF/fmt.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/fmt-rt</taglib-uri>
    <taglib-location>/WEB-INF/fmt-rt.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
    <taglib-location>/WEB-INF/c.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri>
    <taglib-location>/WEB-INF/c-rt.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
    <taglib-location>/WEB-INF/sql.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/sql-rt</taglib-uri>
    <taglib-location>/WEB-INF/sql-rt.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/x</taglib-uri>
    <taglib-location>/WEB-INF/x.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jstl/x-rt</taglib-uri>
    <taglib-location>/WEB-INF/x-rt.tld</taglib-location>
    </taglib>
    </jsp-config>

  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

　　

UserController.java

package cn.behle.hrs.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import cn.behle.hrs.po.User;
import cn.behle.hrs.service.UserService;

@Controller
public class UserController {
	@Autowired
	private UserService userService;

	@RequestMapping("/queryUser.action")
	public String  queryUser(Model model) throws Exception{
		List<User> userlist = userService.selectUser();
		model.addAttribute("userlist",userlist);
		return "/user/staff";

	}
}

　　UserService.java

public interface UserService {
	//查询用户service接口
		public List<User> selectUser() throws Exception;
}

　　

UserServiceImp.java

public class UserServiceImp implements UserService {
	@Autowired
	private UserMapper userMapper;

	//查询用户service接口实现
	@Override
	public List<User> selectUser() throws Exception {
		return userMapper.selectUser();
		// TODO Auto-generated method stub

	}

}

　　mapper接口

UserMapper.java

public interface UserMapper {
	//查询全部用户
	public List<User> selectUser() throws Exception;
}

UserMapper.xml

<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.behle.hrs.mapper.UserMapper">

<select id="selectUser" resultType="cn.behle.hrs.po.User">
  SELECT * FROM user
</select>

</mapper>