Maven搭建SpringMVC+Mybatis项目详解

fefet 7年前

  前言

         搭建Spring+SpringMVC+Mybatis项目。项目持久层使用Mybatis3,控制层使用SpringMVC4.1,使用Spring4.1管理控制器,数据库连接池使用druid数据源,该项数据库暂使用MySQL。

1、 数据库表结构以及maven项目结构

         数据表非常的简单(不是重点),如下:

         Maven搭建SpringMVC+Mybatis项目详解

       创建maven项目,详细见上一篇maven创建(http://blog.csdn.net/fengshizty/article/details/43019561),创建Maven Project时,将Filter选择为org.apache.maven.archetypes。填写完相关项目坐标信息后项目结构如下:

        Maven搭建SpringMVC+Mybatis项目详解

     注:若无src/main/java,src/test/java,src/test/resources时,创建这个几个Source Folder。


 2、修改pom.xml添加对应的包依赖

     这儿将全部使用的Maven依赖贴出了,对应什么作用上面都有解释,如下:

     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>org.andy.sm</groupId>   <artifactId>springmvc_mybatis_demo</artifactId>   <packaging>war</packaging>   <version>0.0.1-SNAPSHOT</version>     <name>springmvc_mybatis_demo Maven Webapp</name>   <url>http://maven.apache.org</url>     <properties>    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    <spring.version>4.1.4.RELEASE</spring.version>    <jackson.version>2.5.0</jackson.version>   </properties>     <dependencies>      <dependency>     <groupId>junit</groupId>     <artifactId>junit</artifactId>     <version>4.12</version>     <scope>test</scope>    </dependency>      <!-- spring -->    <dependency>     <groupId>org.springframework</groupId>     <artifactId>spring-core</artifactId>     <version>${spring.version}</version>    </dependency>      <dependency>     <groupId>org.springframework</groupId>     <artifactId>spring-beans</artifactId>     <version>${spring.version}</version>    </dependency>      <dependency>     <groupId>org.springframework</groupId>     <artifactId>spring-context</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-web</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-jdbc</artifactId>     <version>${spring.version}</version>    </dependency>      <dependency>     <groupId>org.springframework</groupId>     <artifactId>spring-test</artifactId>     <version>${spring.version}</version>     <scope>test</scope>    </dependency>      <!-- mybatis 包 -->    <dependency>     <groupId>org.mybatis</groupId>     <artifactId>mybatis</artifactId>     <version>3.2.8</version>    </dependency>      <!--mybatis spring 插件 -->    <dependency>     <groupId>org.mybatis</groupId>     <artifactId>mybatis-spring</artifactId>     <version>1.2.2</version>    </dependency>      <!-- mysql连接 -->    <dependency>     <groupId>mysql</groupId>     <artifactId>mysql-connector-java</artifactId>     <version>5.1.34</version>    </dependency>      <!-- 数据源 -->    <dependency>     <groupId>com.alibaba</groupId>     <artifactId>druid</artifactId>     <version>1.0.12</version>    </dependency>      <dependency>     <groupId>org.aspectj</groupId>     <artifactId>aspectjweaver</artifactId>     <version>1.8.4</version>    </dependency>      <!-- log4j -->    <dependency>     <groupId>log4j</groupId>     <artifactId>log4j</artifactId>     <version>1.2.17</version>    </dependency>      <!-- servlet -->    <dependency>     <groupId>javax.servlet</groupId>     <artifactId>servlet-api</artifactId>     <version>3.0-alpha-1</version>    </dependency>      <dependency>     <groupId>javax.servlet</groupId>     <artifactId>jstl</artifactId>     <version>1.2</version>    </dependency>      <!-- json -->    <dependency>     <groupId>org.codehaus.jackson</groupId>     <artifactId>jackson-mapper-asl</artifactId>     <version>1.9.13</version>    </dependency>      <dependency>     <groupId>com.alibaba</groupId>     <artifactId>fastjson</artifactId>     <version>1.2.3</version>    </dependency>      <dependency>     <groupId>com.fasterxml.jackson.core</groupId>     <artifactId>jackson-annotations</artifactId>     <version>${jackson.version}</version>    </dependency>      <dependency>     <groupId>com.fasterxml.jackson.core</groupId>     <artifactId>jackson-core</artifactId>     <version>${jackson.version}</version>    </dependency>      <dependency>     <groupId>com.fasterxml.jackson.core</groupId>     <artifactId>jackson-databind</artifactId>     <version>${jackson.version}</version>    </dependency>    <!-- 文件上传 -->    <dependency>     <groupId>commons-io</groupId>     <artifactId>commons-io</artifactId>     <version>2.4</version>    </dependency>      <dependency>     <groupId>commons-fileupload</groupId>     <artifactId>commons-fileupload</artifactId>     <version>1.2.2</version>    </dependency>       </dependencies>       <build>    <finalName>springmvc_mybatis_demo</finalName>    <plugins>     <!-- Run the JUnit unit tests in an isolated classloader -->     <plugin>      <groupId>org.apache.maven.plugins</groupId>      <artifactId>maven-surefire-plugin</artifactId>      <version>2.4.2</version>      <configuration>       <skipTests>true</skipTests>      </configuration>     </plugin>       <plugin>      <groupId>org.apache.maven.plugins</groupId>      <artifactId>maven-war-plugin</artifactId>      <version>2.3</version>      <configuration>       <webXml>src/main/webapp/WEB-INF/web.xml</webXml>      </configuration>     </plugin>       <!-- generate java doc -->     <plugin>      <groupId>org.apache.maven.plugins</groupId>      <artifactId>maven-javadoc-plugin</artifactId>      <version>2.9.1</version>      <configuration>       <javadocDirectory>target/javadoc</javadocDirectory>       <reportOutputDirectory>target/javadoc</reportOutputDirectory>       <charset>UTF-8</charset>       <encoding>UTF-8</encoding>       <docencoding>UTF-8</docencoding>       <show>private</show>      </configuration>     </plugin>       <!-- 部署至本机 -->     <plugin>      <groupId>org.codehaus.cargo</groupId>      <artifactId>cargo-maven2-plugin</artifactId>      <version>1.0</version>      <configuration>       <container>        <containerId>tomcat6x</containerId>        <home>D:\WebServer\apache-tomcat-6.0.39</home>       </container>       <configuration>        <type>existing</type>        <home>D:\WebServer\apache-tomcat-6.0.39</home>       </configuration>      </configuration>     </plugin>      </plugins>     </build>  </project>

3、使用Generator自动生成Mybatis相关表信息

      自动生成表的Model,Mapping,Dao文件,先关使用见文章 http://blog.csdn.net/fengshizty/article/details/43086833 

并将其导入到项目的src/main/java包中。

      其中生成的Model中UserInfo如下:

UserInfo.java(其中List<CourseInfo> courseInfos手动添加的)

package org.andy.shop.model;    import java.util.List;    public class UserInfo {   private Integer id;     private String uname;     private Integer unumber;     private List<CourseInfo> courseInfos;     public Integer getId() {    return id;   }     public void setId(Integer id) {    this.id = id;   }     public String getUname() {    return uname;   }     public void setUname(String uname) {    this.uname = uname == null ? null : uname.trim();   }     public Integer getUnumber() {    return unumber;   }     public void setUnumber(Integer unumber) {    this.unumber = unumber;   }     public List<CourseInfo> getCourseInfos() {    return courseInfos;   }    }


   Dao包中的UserInfoMapper.java

  

package org.andy.shop.dao;    import java.util.List;    import org.andy.shop.model.UserInfo;    public interface UserInfoMapper {      int deleteByPrimaryKey(Integer id);        int insert(UserInfo record);        int insertSelective(UserInfo record);        UserInfo selectByPrimaryKey(Integer id);        int updateByPrimaryKeySelective(UserInfo record);        int updateByPrimaryKey(UserInfo record);            List<UserInfo> selectAll();  }


mapping 中的配置文件UserInfoMapper.xml

<?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="org.andy.shop.dao.UserInfoMapper">   <resultMap id="BaseResultMap" type="org.andy.shop.model.UserInfo">    <id column="id" property="id" jdbcType="INTEGER" />    <result column="uname" property="uname" jdbcType="VARCHAR" />    <result column="unumber" property="unumber" jdbcType="INTEGER" />   </resultMap>   <sql id="Base_Column_List">    id, uname, unumber   </sql>   <select id="selectByPrimaryKey" resultMap="BaseResultMap"    parameterType="java.lang.Integer">    select    <include refid="Base_Column_List" />    from user_info    where id = #{id,jdbcType=INTEGER}   </select>   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">    delete from    user_info    where id = #{id,jdbcType=INTEGER}   </delete>   <insert id="insert" parameterType="org.andy.shop.model.UserInfo">    insert into user_info (id,    uname, unumber    )    values (#{id,jdbcType=INTEGER},    #{uname,jdbcType=VARCHAR},    #{unumber,jdbcType=INTEGER}    )   </insert>   <insert id="insertSelective" parameterType="org.andy.shop.model.UserInfo">    insert into user_info    <trim prefix="(" suffix=")" suffixOverrides=",">     <if test="id != null">      id,     </if>     <if test="uname != null">      uname,     </if>     <if test="unumber != null">      unumber,     </if>    </trim>    <trim prefix="values (" suffix=")" suffixOverrides=",">     <if test="id != null">      #{id,jdbcType=INTEGER},     </if>     <if test="uname != null">      #{uname,jdbcType=VARCHAR},     </if>     <if test="unumber != null">      #{unumber,jdbcType=INTEGER},     </if>    </trim>   </insert>   <update id="updateByPrimaryKeySelective" parameterType="org.andy.shop.model.UserInfo">    update user_info    <set>     <if test="uname != null">      uname = #{uname,jdbcType=VARCHAR},     </if>     <if test="unumber != null">      unumber = #{unumber,jdbcType=INTEGER},     </if>    </set>    where id = #{id,jdbcType=INTEGER}   </update>   <update id="updateByPrimaryKey" parameterType="org.andy.shop.model.UserInfo">    update user_info    set uname = #{uname,jdbcType=VARCHAR},    unumber =    #{unumber,jdbcType=INTEGER}    where id = #{id,jdbcType=INTEGER}   </update>     <resultMap type="org.andy.shop.model.UserInfo" id="UserCourseMap"    extends="BaseResultMap">    <collection property="courseInfos" javaType="list"     ofType="org.andy.shop.model.CourseInfo">     <id property="id" column="course_id" jdbcType="INTEGER" />     <result property="cname" column="cname" jdbcType="VARCHAR" />     <result property="caddress" column="caddress" jdbcType="VARCHAR" />    </collection>       </resultMap>   <select id="selectAll" resultMap="UserCourseMap">    select u.id, u.uname,    u.unumber, c.id course_id, c.cname, c.caddress from user_info u left    join course_user_info cu on u.id = cu.uid    left join course_info c on    cu.cid = c.id   </select>  </mapper>


4、引入Spring并配置相关属性

     在src/main/resources创建spring的配置文件,这里创建了spring.xml,信息如下:

   

<?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"   xsi:schemaLocation="http://www.springframework.org/schema/beans     http://www.springframework.org/schema/beans/spring-beans-4.1.xsd     http://www.springframework.org/schema/context     http://www.springframework.org/schema/context/spring-context-4.1.xsd">     <!--引入配置属性文件 -->   <context:property-placeholder location="classpath:config.properties" />     <!--自动扫描含有@Service将其注入为bean -->   <context:component-scan base-package="org.andy.shop.service" />    </beans>


5、引入Mybatis并配置数据连接池等信息

   5.1、数据连接池druid配置信息

   配置连接池配置信息在config.properties中,如下:

 

#mysql version database druid setting  validationQuery=SELECT 1  jdbc.url=jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8  jdbc.username=root  jdbc.password=12345


  5.2、配置Mybatis相关信息

    以下是mybatis的配置信息:spring-mybatis.xml(ps:名字可随便起)

<?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:aop="http://www.springframework.org/schema/aop"   xsi:schemaLocation="    http://www.springframework.org/schema/beans     http://www.springframework.org/schema/beans/spring-beans-4.1.xsd     http://www.springframework.org/schema/tx     http://www.springframework.org/schema/tx/spring-tx-4.1.xsd    http://www.springframework.org/schema/aop     http://www.springframework.org/schema/aop/spring-aop-4.1.xsd    ">     <!-- 配置数据源 使用的是Druid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="${jdbc.password}" />      <!-- 初始化连接大小 -->    <property name="initialSize" value="0" />    <!-- 连接池最大使用连接数量 -->    <property name="maxActive" value="20" />        <!-- 连接池最小空闲 -->    <property name="minIdle" value="0" />    <!-- 获取连接最大等待时间 -->    <property name="maxWait" value="60000" />    <property name="poolPreparedStatements" value="true" />    <property name="maxPoolPreparedStatementPerConnectionSize"     value="33" />    <!-- 用来检测有效sql -->    <property name="validationQuery" value="${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="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:org/andy/shop/mapping/*.xml" />   </bean>     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">    <property name="basePackage" value="org.andy.shop.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="insert*" propagation="REQUIRED" />     <tx:method name="update*" propagation="REQUIRED" />     <tx:method name="delete*" propagation="REQUIRED" />       <tx:method name="get*" propagation="SUPPORTS" read-only="true" />     <tx:method name="find*" propagation="SUPPORTS" read-only="true" />     <tx:method name="select*" propagation="SUPPORTS" read-only="true" />      </tx:attributes>   </tx:advice>   <!-- Spring aop事务管理 -->   <aop:config>    <aop:pointcut id="transactionPointcut"     expression="execution(* org.andy.shop.service..*Impl.*(..))" />    <aop:advisor pointcut-ref="transactionPointcut"     advice-ref="transactionAdvice" />   </aop:config>    </beans>


主要配置数据连接池,事务管理, mybatis关联映射等,事务采用aop的声明式事务。


6、引入日志

     在src/main/resources中添加log4j日志配置信息:

   log4j.properties

### set log levels ###  log4j.rootLogger = INFO , C , D , E     ### console ###  log4j.appender.C = org.apache.log4j.ConsoleAppender  log4j.appender.C.Target = System.out  log4j.appender.C.layout = org.apache.log4j.PatternLayout  log4j.appender.C.layout.ConversionPattern = [springmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n    ### log file ###  log4j.appender.D = org.apache.log4j.DailyRollingFileAppender  log4j.appender.D.File = ../logs/springmvc-mybatis-demo.log  log4j.appender.D.Append = true  log4j.appender.D.Threshold = INFO   log4j.appender.D.layout = org.apache.log4j.PatternLayout  log4j.appender.D.layout.ConversionPattern = [springmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n    ### exception ###  log4j.appender.E = org.apache.log4j.DailyRollingFileAppender  log4j.appender.E.File = ../logs/springmvc-mybatis-demo_error.log   log4j.appender.E.Append = true  log4j.appender.E.Threshold = ERROR   log4j.appender.E.layout = org.apache.log4j.PatternLayout  log4j.appender.E.layout.ConversionPattern = [sspringmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

7、创建Service

    在src/main/java中创建相关的org.andy.shop.service包和org.andy.shop.service.Impl包。

    UserService接口:

 

package org.andy.shop.service;    import java.util.List;    import org.andy.shop.model.UserInfo;    /**     * 创建时间:2015-1-27 下午5:15:03     * @author andy     * @version 2.2     */    public interface UserService {     UserInfo getUserById(int id);      List<UserInfo> getUsers();      int insert(UserInfo userInfo);  }

   UserServiceImpl实现Service:

package org.andy.shop.service.impl;    import java.util.List;    import org.andy.shop.dao.UserInfoMapper;  import org.andy.shop.model.UserInfo;  import org.andy.shop.service.UserService;  import org.springframework.beans.factory.annotation.Autowired;  import org.springframework.stereotype.Service;    /**   * 创建时间:2015-1-27 下午5:22:59   *    * @author andy   * @version 2.2   */  @Service("userService")  public class UserServiceImpl implements UserService {     @Autowired   private UserInfoMapper userInfoMapper;     @Override   public UserInfo getUserById(int id) {    return userInfoMapper.selectByPrimaryKey(id);   }     @Override   public List<UserInfo> getUsers() {    return userInfoMapper.selectAll();   }     @Override   public int insert(UserInfo userInfo) {        int result = userInfoMapper.insert(userInfo);        System.out.println(result);    return result;   }    }


8、测试Spring和Mybatis配置

   在src/test/java中写测试类,检测是否能够读出数据,若能读出则证明Spring+Mybatis整合成功。

TestUserService测试类:

package org.andy.shop.service;    import java.util.List;    import org.andy.shop.model.UserInfo;  import org.apache.log4j.Logger;  import org.junit.Test;  import org.junit.runner.RunWith;  import org.springframework.beans.factory.annotation.Autowired;  import org.springframework.test.context.ContextConfiguration;  import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;    import com.alibaba.fastjson.JSON;    /**   * 创建时间:2015-1-27 下午10:45:38   *    * @author andy   * @version 2.2   */  @RunWith(SpringJUnit4ClassRunner.class)  @ContextConfiguration(locations = { "classpath:spring.xml",    "classpath:spring-mybatis.xml" })  public class TestUserService {     private static final Logger LOGGER = Logger     .getLogger(TestUserService.class);     @Autowired   private UserService userService;        @Test   public void testQueryById1() {    UserInfo userInfo = userService.getUserById(1);    LOGGER.info(JSON.toJSON(userInfo));   }     @Test   public void testQueryAll() {    List<UserInfo> userInfos = userService.getUsers();    LOGGER.info(JSON.toJSON(userInfos));   }     @Test   public void testInsert() {    UserInfo userInfo = new UserInfo();    userInfo.setUname("xiaoming");    userInfo.setUnumber(4);    int result = userService.insert(userInfo);    System.out.println(result);   }  }


若是测试成功,那证明已经成功了一半了。

9、引入SpringMVC

   9.1 配置SpringMVC配置信息

    SpringMVC的配置信息主要包括控制层Controller的bean管理,视图层和控制层配置等等,下面是spring-mvc.xml信息:

 

<?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-4.1.xsd     http://www.springframework.org/schema/context     http://www.springframework.org/schema/context/spring-context-4.1.xsd     http://www.springframework.org/schema/mvc     http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">     <!-- 自动扫描controller包下的所有类,如果@Controller注入为bean -->   <context:component-scan base-package="org.andy.shop.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.MappingJackson2HttpMessageConverter">    <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>      <!-- json转换器 -->      <ref bean="mappingJacksonHttpMessageConverter" />     </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">    <property name="viewClass"     value="org.springframework.web.servlet.view.JstlView" />    <property name="prefix" value="/WEB-INF/views" />    <property name="suffix" value=".jsp" />   </bean>     <!-- 配置多文件上传 -->   <bean id="multipartResolver"    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    <property name="defaultEncoding">     <value>UTF-8</value>    </property>    <property name="maxUploadSize">     <!-- 上传文件大小限制为31M,31*1024*1024 -->     <value>32505856</value>    </property>    <property name="maxInMemorySize">     <value>4096</value>    </property>   </bean>    </beans>


  自动扫描org.andy.shop.controller报下还有@Controller的控制层,注入为bean。

 9.2、Web容器web.xml配置

    web容器配置启动加载的配置文件,设置SpringMVC拦截的请求(此处拦截.htmls结尾的url请求)

<?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"   id="WebApp_ID" version="2.5">     <display-name>springmvc_mybatis_demo</display-name>     <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value>   </context-param>     <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>     <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>     <servlet>    <description>spring mvc servlet</description>    <servlet-name>rest</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>rest</servlet-name>    <url-pattern>/</url-pattern>   </servlet-mapping>     <!-- 配置session超时时间,单位分钟 -->   <session-config>    <session-timeout>30</session-timeout>   </session-config>     <welcome-file-list>    <welcome-file>index.jsp</welcome-file>   </welcome-file-list>  </web-app>


  9.3、Controller控制层

    在org.andy.shop.controller创建控制层,如UserController.java

 

package org.andy.shop.controller;    import java.util.List;    import org.andy.shop.model.UserInfo;  import org.andy.shop.service.UserService;  import org.springframework.beans.factory.annotation.Autowired;  import org.springframework.stereotype.Controller;  import org.springframework.ui.ModelMap;  import org.springframework.web.bind.annotation.PathVariable;  import org.springframework.web.bind.annotation.RequestMapping;  import org.springframework.web.bind.annotation.ResponseBody;    /**     * 创建时间:2015-1-28 下午1:17:27     * @author andy     * @version 2.2     */  @Controller  @RequestMapping("/user")  public class UserController {     @Autowired   private UserService userService;      @RequestMapping("/showInfo/{userId}")   public String showUserInfo(ModelMap modelMap, @PathVariable int userId){    UserInfo userInfo = userService.getUserById(userId);    modelMap.addAttribute("userInfo", userInfo);    return "/user/showInfo";   }      @RequestMapping("/showInfos")   public @ResponseBody Object showUserInfos(){    List<UserInfo> userInfos = userService.getUsers();    return userInfos;   }  }

9.4、视图层

  在WEB-INF创建视图总目录views(为了安全起见一般都在WEB-INF下创建),创建/user/showInfo.jsp视图文件。

 

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <html>  <head>  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  <title>userInfo</title>  </head>  <body>         姓名: ${userInfo.uname}    </body>  </html>


 9.5、项目总目录结构

   到此为demo以及基本创建完成总目录如下:

     Maven搭建SpringMVC+Mybatis项目详解

10、项目测试

    将项目编译,Maven build...输入clean compile package,部署到Tomcat服务器,启动项目。

   测试1:测试第一个url,  http://localhost:8080/springmvc_mybatis_demo/user/showInfo/1

   测试2:测试第二个json数据返回的url,  http://localhost:8080/springmvc_mybatis_demo/user/showInfos

ok,数据正常显示,SpringMVC+Mybatis搭建成功。

原文地址:http://blog.csdn.net/fengshizty/article/details/43086961