• SpringMVC+Spring+Mybatis -- 集成之旅


    准备

    首先介绍一下,我的工具使用的是STS, 需要的童鞋可以到官网下载:http://spring.io/tools/sts/all

    使用STS是因为她集成了Maven进行 “包“ 管理以及自带 Web server 方便部署(不用配置啦~),个人感觉还是挺方便的。如果大家想要自己配置Tomcat,也未尝不可 :)

    我下载的是压缩包的STS,下载完成后解压缩 -> 启动STS.exe ->指定 workspace ->创建Maven项目 -> 选择建立 webapp 项目。 等待片刻以后,我们就可以看到STS为我们创建的项目架构如下:

    引用和管理 jar 包

    在这里,我们使用Maven来做 jar 包的管理(修改 Maven 的 POM 文件即可)。

    这里推荐一下 Maven 仓库的网址:http://mvnrepository.com 或者 http://search.maven.org 

    我们只需要在上面搜索需要的jar包,将<dependency />的内容复制到POM文件中的

    <dependencies>

      ...

    </dependencies>

    即可完成Jar包的引用。

    我这里参照的是Spring3.x版本,比较老,希望有更新版本的童鞋给我指点一下,THX~~

    POM 内容如下,这里直接贴出所有依赖包:

    <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.example.tuo</groupId>
      <artifactId>SpringMVC_Mybatis</artifactId>
      <packaging>war</packaging>
      <version>0.0.1-SNAPSHOT</version>
      <name>SpringMVC_Mybatis Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
       
        <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>3.2.0.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>3.2.0.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>3.2.0.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.1.1</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.1.1</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.21</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>0.2.9</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.7.1</version>
            </dependency>
            <dependency>
                <groupId>org.codehaus.jackson</groupId>
                <artifactId>jackson-mapper-asl</artifactId>
                <version>1.9.11</version>
            </dependency>
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>1.2.2</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>3.0-alpha-1</version>
            </dependency>
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>1.2.17</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.1.26</version>
            </dependency>
      </dependencies>
      <build>
        <finalName>SpringMVC_Mybatis</finalName>
      </build>
    </project>

    Spring & Mybatis 集成

    1. 首先介绍引入的几个配置文件

    •  config.properties -com.alibaba.druid 的数据源描述文件
    jdbc_url=jdbc:mysql://localhost:3306/db_SSM?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
    jdbc_username=root
    jdbc_password=12345
    • spring-mybatis.xml - spring + mybatis 的配置文件(我将他们放到了一个文件中)
    <?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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="
    http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    ">
    
        <!-- 引入属性文件 -->
        <context:property-placeholder location="classpath:config.properties" />
    
        <!-- 自动扫描(自动注入) -->
        <context:component-scan base-package="cgt.service" />
    
        <!-- JNDI方式配置数据源 -->
        <!-- <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="${jndiName}"></property> </bean> -->
    
        <!-- 配置数据源 -->
        <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
            <property name="url" value="${jdbc_url}" />
            <property name="username" value="${jdbc_username}" />
            <property name="password" value="${jdbc_password}" />
    
            <!-- 初始化连接大小 -->
            <property name="initialSize" value="0" />
            <!-- 连接池最大使用连接数量 -->
            <property name="maxActive" value="20" />
            <!-- 连接池最大空闲 -->
            <property name="maxIdle" value="20" />
            <!-- 连接池最小空闲 -->
            <property name="minIdle" value="0" />
            <!-- 获取连接最大等待时间 -->
            <property name="maxWait" value="60000" />
    
            <!-- <property name="poolPreparedStatements" value="true" /> <property name="maxPoolPreparedStatementPerConnectionSize" value="33" /> -->
    
            <property name="validationQuery" value="${validationQuery}" />
            <property name="testOnBorrow" value="false" />
            <property name="testOnReturn" value="false" />
            <property name="testWhileIdle" value="true" />
    
            <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
            <property name="timeBetweenEvictionRunsMillis" value="60000" />
            <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
            <property name="minEvictableIdleTimeMillis" value="25200000" />
    
            <!-- 打开removeAbandoned功能 -->
            <property name="removeAbandoned" value="true" />
            <!-- 1800秒,也就是30分钟 -->
            <property name="removeAbandonedTimeout" value="1800" />
            <!-- 关闭abanded连接时输出错误日志 -->
            <property name="logAbandoned" value="true" />
    
            <!-- 监控数据库 -->
            <!-- <property name="filters" value="stat" /> -->
            <property name="filters" value="mergeStat" />
        </bean>
    
        <!-- myBatis文件 -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource" />
            <!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->
            <property name="mapperLocations" value="classpath:cgt/mapping/*.xml" />
        </bean>
    
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="cgt.dao" />
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
        </bean>
    
        <!-- 配置事务管理器 -->
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource" />
        </bean>
    
        <!-- 注解方式配置事物 -->
        <!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->
    
        <!-- 拦截器方式配置事物 -->
        <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
            <tx:attributes>
                <tx:method name="add*" propagation="REQUIRED" />
                <tx:method name="append*" propagation="REQUIRED" />
                <tx:method name="insert*" propagation="REQUIRED" />
                <tx:method name="save*" propagation="REQUIRED" />
                <tx:method name="update*" propagation="REQUIRED" />
                <tx:method name="modify*" propagation="REQUIRED" />
                <tx:method name="edit*" propagation="REQUIRED" />
                <tx:method name="delete*" propagation="REQUIRED" />
                <tx:method name="remove*" propagation="REQUIRED" />
                <tx:method name="repair" propagation="REQUIRED" />
                <tx:method name="delAndRepair" propagation="REQUIRED" />
    
                <tx:method name="get*" propagation="SUPPORTS" />
                <tx:method name="find*" propagation="SUPPORTS" />
                <tx:method name="load*" propagation="SUPPORTS" />
                <tx:method name="search*" propagation="SUPPORTS" />
                <tx:method name="datagrid*" propagation="SUPPORTS" />
    
                <tx:method name="*" propagation="SUPPORTS" />
            </tx:attributes>
        </tx:advice>
        <aop:config>
            <aop:pointcut id="transactionPointcut" expression="execution(* sy.service..*Impl.*(..))" />
            <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />
        </aop:config>
    
    
        <!-- 配置druid监控spring jdbc -->
        <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">
        </bean>
        <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
            <property name="patterns">
                <list>
                    <value>cgt.service.*</value>
                </list>
            </property>
        </bean>
        <aop:config>
            <aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />
        </aop:config>
    
    </beans>

    建立数据库与表

    这部分很简单,我在这里放出SQL与截图,供大家参考。

    我们可以看到我们建立了一个数据库 db_SSM, 一张表t_user, 里面有两个user,具体的SQL如下:

    /*
    SQLyog 企业版 - MySQL GUI v8.14 
    MySQL - 5.1.49-community : Database - db_ssm
    *********************************************************************
    */
    
    
    /*!40101 SET NAMES utf8 */;
    
    /*!40101 SET SQL_MODE=''*/;
    
    /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
    /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
    /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
    /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
    CREATE DATABASE /*!32312 IF NOT EXISTS*/`db_ssm` /*!40100 DEFAULT CHARACTER SET utf8 */;
    
    USE `db_ssm`;
    
    /*Table structure for table `t_user` */
    
    DROP TABLE IF EXISTS `t_user`;
    
    CREATE TABLE `t_user` (
      `ID` int(11) NOT NULL AUTO_INCREMENT,
      `NAME` varchar(50) DEFAULT NULL,
      `PWD` varchar(50) DEFAULT NULL,
      PRIMARY KEY (`ID`)
    ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;
    
    /*Data for the table `t_user` */
    
    insert  into `t_user`(`ID`,`NAME`,`PWD`) values (1,'tony','tony'),(2,'sasha','sasha');
    
    /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
    /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
    /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
    /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

    业务处理类

    总的项目结构如下:

    Service层

    IUserService

    package cgt.service;
    
    import cgt.model.User;
    
    public interface IUserService {
    
        public User getUserById(int id);
    }

    UserService 

    package cgt.service;
    
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import cgt.dao.UserMapper;
    import cgt.model.User;
    
    @Service("userService")
    public class UserService implements IUserService{
    
        
        private UserMapper userMapper;
        
        public UserMapper getUserMapper() {
            return userMapper;
        }
        @Autowired
        public void setUserMapper(UserMapper userMapper) {
            this.userMapper = userMapper;
        }
        
        public User getUserById(int id) {
            // TODO Auto-generated method stub
            User u=userMapper.selectById(id);
            return u;
        }
    
        
    
    }

    由于我们以 Spring 自动扫描包的方式加载service,所以,在这里我们只要使用@service以及@autowired注解即可。

    Dao层

    UserMapper - 根据Mybatis的特点,Dao层为均为Interface,具体的实现通过类相对应的Mapper里面的SQL来体现。

    package cgt.dao;
    
    import cgt.model.User;
    
    public interface UserMapper {
        
        
        User selectById(int id);
    
    
    }

    Mapper层

    UserMapper - 注意前缀必须与Dao的前缀相同(我这里的前缀为 user

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
    <mapper namespace="cgt.dao.UserMapper">
        <resultMap id="BaseResultMap" type="cgt.model.User">
            <id column="ID" property="id" jdbcType="INTEGER" />        
            <result column="NAME" property="name" jdbcType="VARCHAR" />
            <result column="PWD" property="pwd" jdbcType="VARCHAR" />
            
        </resultMap>
        <sql id="Base_Column_List">
            ID, NAME, PWD
        </sql>
        <select id="selectById" resultMap="BaseResultMap" parameterType="java.lang.Integer">
            select
            <include refid="Base_Column_List" />
            from t_user
            where ID = #{id,jdbcType=VARCHAR}
        </select>
        
    </mapper>

    Model层

    User类 - POJO 类

    package cgt.model;
    
    public class User {
    
        private int id;
        private String name;
        private String pwd;
        
        public int getId() {
            return id;
        }
        public void setId(int id) {
            this.id = id;
        }
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getPwd() {
            return pwd;
        }
        public void setPwd(String pwd) {
            this.pwd = pwd;
        }
        
        public User() {
            super();
            // TODO Auto-generated constructor stub
        }
        public User(String name, String pwd) {
            super();
            this.name = name;
            this.pwd = pwd;
        }
        
        @Override
        public String toString() {
            return "User [id=" + id + ", name=" + name + ", pwd=" + pwd + "]";
        }
        
        
        
        
        
        
        
    }

    到这里,我们关于Spring & Mybatis 相关的业务逻辑部分就完成了。

     

    使用 junit 编写测试代码

    关于Junit test,这里介绍两种方式 :

    方法一:使用 ApplicationContext 对象

    package cgt.test;
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import cgt.model.User;
    import cgt.service.IUserService;
    
    
    public class SpinrgMybatisTest {
    
        @Test
        public void test1(){
            ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:spring-mybatis.xml");
            IUserService userService=(IUserService)ac.getBean("userService");
            User u = userService.getUserById(2);
            System.out.println(u);
            
        }
    }

    测试结果:

    方法二: Junit 集成 Spring 的 test 方式 

    首先需要在POM.xml引入jar包

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>3.2.0.RELEASE</version>
    </dependency>

    Test类的写法如下:

    package cgt.test;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    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 cgt.model.User;
    import cgt.service.IUserService;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(locations={"classpath:spring-mybatis.xml"})
    public class SpinrgMybatisTest2 {
    
        private IUserService userService;
        
        public IUserService getUserService() {
            return userService;
        }
        
        @Autowired
        public void setUserService(IUserService userService) {
            this.userService = userService;
        }
    
        @Test
        public void test2(){
            User u = userService.getUserById(1);
            System.out.println(u);
            
        }
    }

     测试结果:

     

    通过 Junit 测试,我们可以看到Spring & Mybatis 的集成成功啦, nice!  :)

    集成SpringMVC

    我们需要以SpringMVC的方式接受HTTP Request,request的URL格式我们使用的是类似于REST的格式。例如:http://localhost:8080/SpringMVC_Mybatis/userController/getUserName.do?id=1

    Web.xml

    她是整个程序的入口,我们需要在这里特别注意两点:

    1. 以SpringMVC的方式接受request(servlet)

    2. 项目需要读取哪些配置文件。

    <?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_3_0.xsd" id="WebApp_ID" version="3.0">
    
    
        <display-name>SpringMVC_Mybatis</display-name>
        
        <!-- 需要加载的配置文件 -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mybatis.xml</param-value>
        </context-param>
        
        <!-- 字符集过滤器 -->
        <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>
        </filter>
        <filter-mapping>
            <filter-name>encodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
        
        <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>
        </servlet>
        <servlet-mapping>
            <servlet-name>springMvc</servlet-name>
            <url-pattern>*.do</url-pattern>
        </servlet-mapping>
        
        <!-- 配置session超时时间,单位分钟 -->
        <session-config>
            <session-timeout>15</session-timeout>
        </session-config>  
        
        <welcome-file-list>
            <welcome-file>/index.jsp</welcome-file>
        </welcome-file-list>
        
     
    </web-app>

    Sping-mvc.xml

    这里主要是 “指明” 扫描 Controller 的包下的类(与 @controller 配合)。

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" 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" xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.0.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
    
        <!-- 自动扫描controller包下的所有类,使其认为spring mvc的控制器 -->
        <context:component-scan base-package="cgt.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Spring MVC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>
    
        <!-- 对模型视图名称的解析,即在模型视图名称添加前后缀 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" />
    
        <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
            <property name="defaultEncoding">
                <value>UTF-8</value>
            </property>
            <property name="maxUploadSize">
                <value>32505856</value><!-- 上传文件大小限制为31M,31*1024*1024 -->
            </property>
            <property name="maxInMemorySize">
                <value>4096</value>
            </property>
        </bean>
    
    </beans>

    UserController

    这个类需要接受Request请求,并且转到对应的 JSP 页面

    package cgt.controller;
    
    import javax.servlet.http.HttpServletRequest;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import cgt.service.IUserService;
    
    @Controller
    @RequestMapping("/userController")
    public class UserController {
    
        private IUserService userService;
    
        public IUserService getUserService() {
            return userService;
        }
        
        @Autowired
        public void setUserService(IUserService userService) {
            this.userService = userService;
        }
        
        @RequestMapping("/getUserName/{id}")
        public String getUserNameById(@PathVariable String id, HttpServletRequest request)
        {
                
            request.setAttribute("user", userService.getUserById(Integer.parseInt(id)));
            return "showUser";
        }
    }

    请注意这里的几个细节:

    首先注解部分:

    @Controller - 指明这是一个Controller类,需要被Spring管理。

    @RequestMapping - 指明URL的请求路径。

    @PathVariable - 与方法上面的@RequestMapping注解 中的 {id} 相结合,表示接受id作为请求的参数

    方法的返回值:

    返回值为 “showUser”。它与SpringMVC中的 “InternalResourceViewResolver”

    <!-- 对模型视图名称的解析,即在模型视图名称添加前后缀 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" />

     一同指定了返回的jsp页面为: 根目录下的showUser.jsp,如图所示:

     

    部署程序+测试

    1. Maven install

    2. 使用STS内置的Server,运行起来后输入URL=http://localhost:8080/SpringMVC_Mybatis/userController/getUserName/2.do

    结果如下:

    Well done! 我们的集成之路顺利完成!!

    结束语

    lz入Java坑时间不长,所以我这里主要是参考网上的一些示例来做的集成。 因此,使用的Spring版本比较老,如果大家较新版本(Sping 4 or later)的集成,请务必推荐给我,感谢 :)

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  • 原文地址:https://www.cnblogs.com/atuotuo/p/6597651.html
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