SSM整合---环境搭建
l 查询所有用户的信息，保存用户信息
1.pom.xml配置项目所需的jar包
<dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> </dependency> <!-- 1.日志 --> <!-- 实现slf4j接口并整合 --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.1.1</version> </dependency> <!-- 2.数据库 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.37</version> <scope>runtime</scope> </dependency> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <!-- DAO: MyBatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.3.0</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.3</version> </dependency> <!-- 3.Servlet web --> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.5.4</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <!-- 4.Spring --> <!-- 1)Spring核心 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!-- 2)Spring DAO层 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!-- 3)Spring web --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!-- 4)Spring test --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.7.RELEASE</version> </dependency> <!-- redis客户端:Jedis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.7.3</version> </dependency> <dependency> <groupId>com.dyuproject.protostuff</groupId> <artifactId>protostuff-core</artifactId> <version>1.0.8</version> </dependency> <dependency> <groupId>com.dyuproject.protostuff</groupId> <artifactId>protostuff-runtime</artifactId> <version>1.0.8</version> </dependency> <!-- Map工具类 --> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.2</version> </dependency> <!-- https://mvnrepository.com/artifact/aopalliance/aopalliance --> <dependency> <groupId>aopalliance</groupId> <artifactId>aopalliance</artifactId> <version>1.0</version> </dependency> <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.9.2</version> </dependency> <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.9.3</version> </dependency> <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.9.4</version> </dependency> </dependencies>
2.web.xml文件配置前端控制器，过滤器（处理中文乱码）和监听器（监听项目启动）
<web-app> <display-name>Archetype Created Web Application</display-name> <!--配置spring的监听器,默认只加载WEB-INF文件下的applicationContext.xml配置文件--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--设置配置文件的路径--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!--过滤器,处理中文乱码--> <filter> <filter-name>encodingFilter</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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--配置前端控制器--> <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:springmvc.xml</param-value> </init-param> <!--启动服务器，创建该servlet--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
3.创建springmvc.xml文件，进行spring与springmvc的整合配置
<?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:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd "> <!--开启注解扫描，只扫描controller中的注解--> <context:component-scan base-package="com.ssm.controller"></context:component-scan> <!--配置视图解析器对象--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!--配置前缀--> <property name="prefix" value="/"></property> <!--配置后缀--> <property name="suffix" value=".jsp"></property> </bean> <!--过滤静态资源--> <mvc:resources mapping="/css/**" location="/css/"></mvc:resources> <mvc:resources mapping="/images/**" location="/images/"></mvc:resources> <mvc:resources mapping="/js/**" location="/js/"></mvc:resources> <!--开启springmvc注解的支持--> <mvc:annotation-driven/> <mvc:default-servlet-handler/> </beans>
4.创建applicationContext.xml文件，进行spring与mybatis的整合配置
<?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:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--扫描包，只扫描service和dao，controller不需要扫描--> <context:component-scan base-package="com.ssm.dao,com.ssm.service"></context:component-scan> <!--spring整合Mybatis框架--> <!--配置连接池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/zml02"></property> <property name="user" value="root"></property> <property name="password" value="root"></property> </bean> <!--配置SqlSessionFactory工厂--> <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <!--自动扫描UserDao.xml配置文件--> <property name="mapperLocations" value="classpath:com/ssm/dao/*.xml"></property> </bean> <!--配置UserDao接口所在的包--> <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"></property> <property name="basePackage" value="com.ssm.dao"></property> </bean> <!--配置spring框架声明式事务管理--> <!--配置事务管理--> <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!--配置事务通知--> <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager"> <tx:attributes> <tx:method name="find*" read-only="true"/> <tx:method name="*" isolation="DEFAULT"/> </tx:attributes> </tx:advice> </beans>
5.创建与数据库表对应的实体类，实体类属性与表中对应
package com.ssm.entity; public class User { private int id; private String username; private String password; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } @Override public String toString() { return "User{" + "id=" + id + ", username='" + username + '\'' + ", password='" + password + '\'' + '}'; } }
6.创建dao层接口
package com.ssm.dao; import com.ssm.entity.User; import org.springframework.stereotype.Repository; import java.util.List; @Repository public interface UserDao { //查询所有用户信息 public List<User> findAll(); //保存用户信息 public void save(User user); }
7.创建dao层的xml文件，用于写sql语句，文件路径与dao接口的路径对应，文件名与dao接口名一样
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPEmapper PUBLIC"-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.ssm.dao.UserDao"> <!--查询所有--> <select id="findAll" resultType="com.ssm.entity.User"> select * from user </select> <!--保存--> <insert id="save" parameterType="com.ssm.entity.User"> insert into user(username,password) values(#{username},#{password}) </insert> </mapper>
8.创建service层，创建service层的接口
package com.ssm.service; import com.ssm.entity.User; import org.springframework.stereotype.Service; import java.util.List; @Service public interface UserService { //查询所有用户信息 public List<User> findAll(); //保存用户信息 public void save(User user); }
9.创建service层的实现类
package com.ssm.service.Impl; import com.ssm.dao.UserDao; import com.ssm.entity.User; import com.ssm.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import java.util.List; @Service public class UserServiceImpl implements UserService { @Autowired private UserDao userDao; @Override public List<User> findAll() { System.out.println("业务层：查询所有用户信息"); return userDao.findAll(); } @Override public void save(User user) { System.out.println("业务层：添加用户信息"); userDao.save(user); } }
10.创建controller层，创建类
package com.ssm.controller; import com.ssm.entity.User; import com.ssm.service.Impl.UserServiceImpl; 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 java.util.List; @Controller @RequestMapping("/UserController") public class UserController { @Autowired private UserServiceImpl userService; @RequestMapping("/findAll") public ModelAndView findAll(){ ModelAndView modelAndView=new ModelAndView(); List<User> list=userService.findAll(); modelAndView.addObject("list",list); for(User u:list){ System.out.println(u); } modelAndView.setViewName("list"); System.out.println("controllrt中的findAll方法"); return modelAndView; } @RequestMapping("/save") public String save(User user){ userService.save(user); return "list"; } }
11.编写index.jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <a href="UserController/findAll">跳转</a> <form action="UserController/save" method="post"> <input type="text" name="username"> <input type="text" name="password"> <input type="submit" > </form> </body> </html>
12.编写list.jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@page isELIgnored="false" %> <html> <head> <title>Title</title> </head> <body> ${list} </body> </html>