• (转)SSM框架——整合教程(Spring+SpringMVC+MyBatis)


    1.创建Web项目

    1.1、使用Maven创建Web项目

      执行如下命令:

    mvn archetype:generate -DgroupId=com.yxl -DartifactId=ssmtest -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false
    修改<name>ssmtest Maven Webapp</name> 部分,把" Maven Webapp"这部分包含空格的内容去掉,否则Maven在编译项目时会因为空格的原因导致一些莫名其妙的错误出现,修改成<name>ssmtest</name>。
    1.2、将创建好的项目导入MyEclipse中

    选择“Existing Maven Projects”,finish。

    手动创建【src/main/java】、【src/test/resources】、【src/test/java】这三个source folder。

    1.3Maven引入需要的JAR包

    pom.xml:

    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.yxl</groupId>
      <artifactId>ssmtest</artifactId>
      <packaging>war</packaging>
      <version>1.0-SNAPSHOT</version>
      <name>ssmtest</name>
      <url>http://maven.apache.org</url>
      <properties>
    		<!-- spring版本号 -->
    		<spring.version>4.0.2.RELEASE</spring.version>
    		<!-- mybatis版本号 -->
    		<mybatis.version>3.2.6</mybatis.version>
    		<!-- log4j日志文件管理包版本 -->
    		<slf4j.version>1.7.7</slf4j.version>
    		<log4j.version>1.2.17</log4j.version>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>4.11</version>
    			<!-- 表示开发的时候引入,发布的时候不会加载此包 -->
    			<scope>test</scope>
    		</dependency>
    		<!-- spring核心包 -->
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-core</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-web</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-oxm</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-tx</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-jdbc</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-aop</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context-support</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-test</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<!-- mybatis核心包 -->
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis</artifactId>
    			<version>${mybatis.version}</version>
    		</dependency>
    		<!-- mybatis/spring包 -->
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis-spring</artifactId>
    			<version>1.2.2</version>
    		</dependency>
    		<!-- 导入java ee jar 包 -->
    		<dependency>
    			<groupId>javax</groupId>
    			<artifactId>javaee-api</artifactId>
    			<version>7.0</version>
    		</dependency>
    		<!-- 导入Mysql数据库链接jar包 -->
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>5.1.30</version>
    		</dependency>
    		<!-- 导入dbcp的jar包,用来在applicationContext.xml中配置数据库 -->
    		<dependency>
    			<groupId>commons-dbcp</groupId>
    			<artifactId>commons-dbcp</artifactId>
    			<version>1.2.2</version>
    		</dependency>
    		<!-- JSTL标签类 -->
    		<dependency>
    			<groupId>jstl</groupId>
    			<artifactId>jstl</artifactId>
    			<version>1.2</version>
    		</dependency>
    		<!-- 日志文件管理包 -->
    		<!-- log start -->
    		<dependency>
    			<groupId>log4j</groupId>
    			<artifactId>log4j</artifactId>
    			<version>${log4j.version}</version>
    		</dependency>
    		<!-- 格式化对象,方便输出日志 -->
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>fastjson</artifactId>
    			<version>1.1.41</version>
    		</dependency>
    		<dependency>
    			<groupId>org.slf4j</groupId>
    			<artifactId>slf4j-api</artifactId>
    			<version>${slf4j.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.slf4j</groupId>
    			<artifactId>slf4j-log4j12</artifactId>
    			<version>${slf4j.version}</version>
    		</dependency>
    		<!-- log end -->
    		<!-- 映入JSON -->
    		<dependency>
    			<groupId>org.codehaus.jackson</groupId>
    			<artifactId>jackson-mapper-asl</artifactId>
    			<version>1.9.13</version>
    		</dependency>
    		<!-- 上传组件包 -->
    		<dependency>
    			<groupId>commons-fileupload</groupId>
    			<artifactId>commons-fileupload</artifactId>
    			<version>1.3.1</version>
    		</dependency>
    		<dependency>
    			<groupId>commons-io</groupId>
    			<artifactId>commons-io</artifactId>
    			<version>2.4</version>
    		</dependency>
    		<dependency>
    			<groupId>commons-codec</groupId>
    			<artifactId>commons-codec</artifactId>
    			<version>1.9</version>
    		</dependency>
    	</dependencies>
      <build>
        <finalName>ssmtest</finalName>
      </build>
    </project>
    

    2、Spring与MyBatis的整合

    2.1、建立JDBC属性文件(文件编码修改为utf-8)

    driver=com.mysql.jdbc.Driver
    url=jdbc:mysql://localhost:3306/spring4_mybatis3
    username=root
    password=123456
    #定义初始连接数
    initialSize=0
    #定义最大连接数
    maxActive=20
    #定义最大空闲
    maxIdle=20
    #定义最小空闲
    minIdle=1
    #定义最长等待时间
    maxWait=60000
    

      

    2.2、建立spring-mybatis.xml配置文件

            这个文件就是用来完成spring和mybatis的整合的。这里面也没多少行配置,主要的就是自动扫描,自动注入,配置数据库。注释也很详细,大家看看就明白了。

    spring-mybatis.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-3.1.xsd  
                            http://www.springframework.org/schema/context  
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd  
                            http://www.springframework.org/schema/mvc  
                            http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    	<!-- 自动扫描 -->
    	<context:component-scan base-package="com.yxl" />
    	<!-- 引入配置文件 -->
    	<bean id="propertyConfigurer"
    		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    		<property name="location" value="classpath:jdbc.properties" />
    	</bean>
    
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
    		destroy-method="close">
    		<property name="driverClassName" value="${driver}" />
    		<property name="url" value="${url}" />
    		<property name="username" value="${username}" />
    		<property name="password" value="${password}" />
    		<!-- 初始化连接大小 -->
    		<property name="initialSize" value="${initialSize}"></property>
    		<!-- 连接池最大数量 -->
    		<property name="maxActive" value="${maxActive}"></property>
    		<!-- 连接池最大空闲 -->
    		<property name="maxIdle" value="${maxIdle}"></property>
    		<!-- 连接池最小空闲 -->
    		<property name="minIdle" value="${minIdle}"></property>
    		<!-- 获取连接最大等待时间 -->
    		<property name="maxWait" value="${maxWait}"></property>
    	</bean>
    
    	<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
    	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource" />
    		<!-- 自动扫描mapping.xml文件 -->
    		<property name="mapperLocations" value="classpath:com/yxl/mapping/*.xml"></property>
    	</bean>
    
    	<!-- DAO接口所在包名,Spring会自动查找其下的类 -->
    	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    		<property name="basePackage" value="com.yxl.dao" />
    		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    	</bean>
    
    	<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    	<bean id="transactionManager"
    		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    		<property name="dataSource" ref="dataSource" />
    	</bean>
    </beans>
    

      

    2.3、Log4j的配置

     为了方便调试,一般都会使用日志来输出信息,Log4j是Apache的一个开放源代码项目,通过使用Log4j,我们可以控制日志信息输送的目的地是控制台、文件、GUI组件,甚至是套接口服务器、NT的事件记录器、UNIX Syslog守护进程等;我们也可以控制每一条日志的输出格式;通过定义每一条日志信息的级别,我们能够更加细致地控制日志的生成过程。

          Log4j的配置很简单,而且也是通用的,下面给出一个基本的配置,换到其他项目中也无需做多大的调整,如果想做调整或者想了解Log4j的各种配置,参看我转载的一篇博文,很详细:

    http://blog.csdn.net/zhshulin/article/details/37937365

    log4j.properties:

    #定义LOG输出级别
    log4j.rootLogger=INFO,Console,File
    #定义日志输出目的地为控制台
    log4j.appender.Console=org.apache.log4j.ConsoleAppender
    log4j.appender.Console.Target=System.out
    #可以灵活地指定日志输出格式,下面一行是指定具体的格式
    log4j.appender.Console.layout = org.apache.log4j.PatternLayout
    log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

    #文件大小到达指定尺寸的时候产生一个新的文件
    log4j.appender.File = org.apache.log4j.RollingFileAppender
    #指定输出目录
    log4j.appender.File.File = logs/ssm.log
    #定义文件最大大小
    log4j.appender.File.MaxFileSize = 10MB
    # 输出所以日志,如果换成DEBUG表示输出DEBUG以上级别日志
    log4j.appender.File.Threshold = ALL
    log4j.appender.File.layout = org.apache.log4j.PatternLayout
    log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH:mm:ss}][%c]%m%n

    3、JUnit测试

      经过以上步骤(log4j不配也没影响),我们已经完成了Spring和mybatis的整合,这样我们就可以编写一段测试代码来试试是否成功了。

    3.1、创建数据库和表(针对MySQL)

    use spring4_mybatis3;
    DROP TABLE IF EXISTS `user_t`;
    
    CREATE TABLE `user_t` (
      `id` int(11) NOT NULL AUTO_INCREMENT,
      `user_name` varchar(40) NOT NULL,
      `password` varchar(255) NOT NULL,
      `age` int(4) NOT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
    
    /*Data for the table `user_t` */
    
    insert  into `user_t`(`id`,`user_name`,`password`,`age`) values (1,'测试','sfasgfaf',24);

    3.2、使用generator工具生成代码

    配置文件generatorConfig.xml:

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
    <generatorConfiguration>
        <!-- 数据库驱动包位置 -->
        <classPathEntry location="E:Javamysql-connector-java-5.1.38-bin.jar" /> 
        <!-- <classPathEntry location="C:oracleproduct10.2.0db_1jdbclibojdbc14.jar" />-->
        <context id="DB2Tables" targetRuntime="MyBatis3">
            <commentGenerator>
                <property name="suppressAllComments" value="true" />
            </commentGenerator>
            <!-- 数据库链接URL、用户名、密码 -->
             <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/spring4_mybatis3" userId="root" password="123456"> 
            <!--<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl" userId="msa" password="msa">-->
            </jdbcConnection>
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false" />
            </javaTypeResolver>
            <!-- 生成实体类的包名和位置,这里配置将生成的实体类放在com.yxl.test.domain这个包下 -->
            <javaModelGenerator targetPackage="com.yxl.test.domain" targetProject="C:Usersmoonssmtestsrcmainjava">
                <property name="enableSubPackages" value="true" />
                <property name="trimStrings" value="true" />
            </javaModelGenerator>
            <!-- 生成的SQL映射文件包名和位置,这里配置将生成的SQL映射文件放在com.yxl.test.mapping这个包下 -->
            <sqlMapGenerator targetPackage="com.yxl.test.mapping" targetProject="C:Usersmoonssmtestsrcmainjava">
                <property name="enableSubPackages" value="true" />
            </sqlMapGenerator>
            <!-- 生成DAO的包名和位置,这里配置将生成的dao类放在com.yxl.test.dao这个包下 -->
            <javaClientGenerator type="XMLMAPPER" targetPackage="com.yxl.test.dao" targetProject="C:Usersmoonssmtestsrcmainjava">
                <property name="enableSubPackages" value="true" />
            </javaClientGenerator>
            <!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
            <table tableName="user_t" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
        </context>
    </generatorConfiguration>
    

      

    修改配置文件generatorConfig.xml,只需要打开控制台,进入lib目录下,执行脚本

    java -jar mybatis-generator-core-1.3.2.jar -configfile generatorConfig.xml -overwrite

    生成文件,目录:

    3.3.建立Service接口和实现类

    IUserService.java:

    package com.yxl.service;
    import com.yxl.domain.User;
    public interface IUserService {
    	public User getUserById(int userId);
    }

    UserServiceImpl.java

    package com.yxl.service.impl;
    import javax.annotation.Resource;
    import org.springframework.stereotype.Service;
    import com.yxl.dao.UserMapper;
    import com.yxl.domain.User;
    import com.yxl.service.IUserService;
    
    @Service("userService")
    public class UserServiceImpl implements IUserService {
    	@Resource
    	private UserMapper userMapper;
    
    	@Override
    	public User getUserById(int userId) {
    		// TODO Auto-generated method stub
    		return this.userMapper.selectByPrimaryKey(userId);
    	}
    
    }
    

    3.4、建立测试类

        测试类在src/test/java中建立,下面测试类中注释掉的部分是不使用Spring时,一般情况下的一种测试方法;如果使用了Spring那么就可以使用注解的方式来引入配置文件和类,然后再将service接口对象注入,就可以进行测试了。

        如果测试成功,表示Spring和Mybatis已经整合成功了。输出信息使用的是Log4j打印到控制台。

    package com.yxl.test;
    import javax.annotation.Resource;
    import org.apache.log4j.Logger;
    import org.junit.Before;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    import org.springframework.test.context.ContextConfiguration;  
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;  
    import com.alibaba.fastjson.JSON;
    import com.yxl.domain.User;
    import com.yxl.service.IUserService;

    //@RunWith(SpringJUnit4ClassRunner.class)
    //@ContextConfiguration(locations = {"classpath:spring-mybatis.xml"})
    public class TestMyBatis {
    private static Logger logger = Logger.getLogger(TestMyBatis.class);
    private ApplicationContext ac = null;
    @Resource
    private IUserService userService = null;

    @Before
    public void before() {
    ac = new ClassPathXmlApplicationContext("spring-mybatis.xml");
    userService = (IUserService) ac.getBean("userService");
    }

    @Test
    public void test1() {
    User user = userService.getUserById(1);
    System.out.println(user.getUserName());
    logger.info("值:"+user.getUserName());
    logger.info(JSON.toJSONString(user));
    }
    }

    结果:

    [org.springframework.context.support.ClassPathXmlApplicationContext] - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1ab9dac: startup date [Sat Mar 05 18:07:03 CST 2016]; root of context hierarchy
    [org.springframework.beans.factory.xml.XmlBeanDefinitionReader] - Loading XML bean definitions from class path resource [spring-mybatis.xml]
    [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer] - Loading properties file from class path resource [jdbc.properties]
    [org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor] - JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
    测试
    [com.yxl.test.TestMyBatis] - 值:测试
    [com.yxl.test.TestMyBatis] - {"age":24,"id":1,"password":"sfasgfaf","userName":"测试"}

     至此,完成Spring和mybatis这两大框架的整合,下面在继续进行SpringMVC的整合。

    4.整合SpringMVC

             上面已经完成了2大框架的整合,SpringMVC的配置文件单独放,然后在web.xml中配置整合。

    4.1、配置spring-mvc.xml

    配置里面的注释也很详细,在此就不说了,主要是自动扫描控制器,视图模式,注解的启动这三个。

    <?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-3.1.xsd  
                            http://www.springframework.org/schema/context  
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd  
                            http://www.springframework.org/schema/mvc  
                            http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
    	<!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 -->
    	<context:component-scan base-package="com.yxl.controller" />
    	<!--避免IE执行AJAX时,返回JSON出现下载文件 -->
    	<bean id="mappingJacksonHttpMessageConverter"
    		class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
    		<property name="supportedMediaTypes">
    			<list>
    				<value>text/html;charset=UTF-8</value>
    			</list>
    		</property>
    	</bean>
    	<!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 -->
    	<bean
    		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    		<property name="messageConverters">
    			<list>
    				<ref bean="mappingJacksonHttpMessageConverter" />	<!-- JSON转换器 -->
    			</list>
    		</property>
    	</bean>
    	<!-- 定义跳转的文件的前后缀 ,视图模式配置-->
    	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 -->
    		<property name="prefix" value="/WEB-INF/jsp/" />
    		<property name="suffix" value=".jsp" />
    	</bean>
    	
    	<!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 -->
    	<bean id="multipartResolver"  
            class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
            <!-- 默认编码 -->
            <property name="defaultEncoding" value="utf-8" />  
            <!-- 文件大小最大值 -->
            <property name="maxUploadSize" value="10485760000" />  
            <!-- 内存中的最大值 -->
            <property name="maxInMemorySize" value="40960" />  
        </bean> 
    </beans>

    4.2、配置web.xml文件

         这里面对spring-mybatis.xml的引入以及配置的spring-mvc的Servlet就是为了完成SSM整合,之前2框架整合不需要在此处进行任何配置。配置一样有详细注释,不多解释了。

    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_3_0.xsd"
    	version="3.0">
    	<display-name>Archetype Created Web Application</display-name>
    	<!-- Spring和mybatis的配置文件 -->
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:spring-mybatis.xml</param-value>
    	</context-param>
    	<!-- 编码过滤器 -->
    	<filter>
    		<filter-name>encodingFilter</filter-name>
    		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    		<async-supported>true</async-supported>
    		<init-param>
    			<param-name>encoding</param-name>
    			<param-value>UTF-8</param-value>
    		</init-param>
    	</filter>
    	<filter-mapping>
    		<filter-name>encodingFilter</filter-name>
    		<url-pattern>/*</url-pattern>
    	</filter-mapping>
    	<!-- Spring监听器 -->
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    	<!-- 防止Spring内存溢出监听器 -->
    	<listener>
    		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    	</listener>
    
    	<!-- Spring MVC servlet -->
    	<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-mvc.xml</param-value>
    		</init-param>
    		<load-on-startup>1</load-on-startup>
    		<async-supported>true</async-supported>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>SpringMVC</servlet-name>
    		<!-- 此处可以可以配置成*.do,对应struts的后缀习惯 -->
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    	<welcome-file-list>
    		<welcome-file>/index.jsp</welcome-file>
    	</welcome-file-list>
    </web-app>
    

    5、测试

         至此已经完成了SSM三大框架的整合了,接下来测试一下,如果成功了,那么恭喜你,如果失败了,继续调试吧,作为程序员就是不停的与BUG做斗争!

    5.1、新建jsp页面

    showUser.jsp   此页面仅输出一下用户名,完成一个完整的简单流程。

      

    <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
    	<title>测试</title>
      </head>
      
      <body>
        ${user.userName}
      </body>
    </html>
    

    5.2、建立UserController类

    UserController.java  控制器

    package com.yxl.controller;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;  
    
    import com.yxl.domain.User;
    import com.yxl.service.IUserService;
    
    @Controller
    @RequestMapping("/user")
    public class UserController {
    	@Resource
    	private IUserService userService;
    	
    	@RequestMapping("/showUser")
    	public String toIndex(HttpServletRequest request,Model model){
    		int userId = Integer.parseInt(request.getParameter("id"));
    		User user = this.userService.getUserById(userId);
    		model.addAttribute("user", user);
    		return "showUser";
    	}
    }
    

      

    5.3、部署项目

    输入地址:localhost:8080/项目名称/user/showUser?id=1

    页面显示:测试

    参考文档:

    http://www.cnblogs.com/xdp-gacl/p/4271627.html

    http://blog.csdn.net/zhshulin/article/details/37956105

    http://blog.csdn.net/zhshulin/article/details/23912615

    附:可以直接建立Web Project,选中Add Maven Support :

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  • 原文地址:https://www.cnblogs.com/xingxing0521/p/5245357.html
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