Maven搭建SpringMVC+Mybatis项目详解

旧城等待， 2022-07-24 10:19 149阅读 0赞

## 前言    ##

最近比较闲，复习搭建一下项目，这次主要使用Spring+SpringMVC+Mybatis。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：

![Center][]

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：

![Center 1][]

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>
    
    		
    		<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>
    
    		
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis</artifactId>
    			<version>3.2.8</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis-spring</artifactId>
    			<version>1.2.2</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>5.1.34</version>
    		</dependency>
    
    		
    		<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>
    
    		
    		<dependency>
    			<groupId>log4j</groupId>
    			<artifactId>log4j</artifactId>
    			<version>1.2.17</version>
    		</dependency>
    
    		
    		<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>
    
    		
    		<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>
    		
    		<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>
    			
    			<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>
    
    			
    			<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>
    
    			
    			<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：

### 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
    		">
    
    	
    	<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}" />
    
    		
    		<property name="initialSize" value="0" />
    		
    		<property name="maxActive" value="20" />
    		
    		
    		<property name="minIdle" value="0" />
    		
    		<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" />
    		
    		<property name="timeBetweenEvictionRunsMillis" value="60000" />
    		
    		<property name="minEvictableIdleTimeMillis" value="25200000" />
    		
    		<property name="removeAbandoned" value="true" />
    		
    		<property name="removeAbandonedTimeout" value="1800" />
    		
    		<property name="logAbandoned" value="true" />
    		
    		<property name="filters" value="mergeStat" />
    	</bean>
    
    	
    	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource" />
    		
    		<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>
    
    	
    	<bean id="transactionManager"
    		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    		<property name="dataSource" ref="dataSource" />
    	</bean>
    
    	
    	
    
    	
    	<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>
    	
    	<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">
    
    	
    	<context:component-scan base-package="org.andy.shop.controller" />
    
    	
    	<bean id="mappingJacksonHttpMessageConverter"
    		class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
    		<property name="supportedMediaTypes">
    			<list>
    				<value>text/html;charset=UTF-8</value>
    			</list>
    		</property>
    	</bean>
    
    	
    	<bean
    		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    		<property name="messageConverters">
    			<list>
    				
    				<ref bean="mappingJacksonHttpMessageConverter" />
    			</list>
    		</property>
    	</bean>
    
    	
    	<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>
    
    	
    	<bean id="multipartResolver"
    		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    		<property name="defaultEncoding">
    			<value>UTF-8</value>
    		</property>
    		<property name="maxUploadSize">
    			
    			<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>
    
    	
    	<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>*.htmls</url-pattern>
    	</servlet-mapping>
    
    	
    	<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：

![Center 2][]

### 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.htmls

![Center 3][]

测试2：测试第二个json数据返回的url，  http://localhost:8080/springmvc\_mybatis\_demo/user/showInfos.htmls

![Center 4][]

ok，数据正常显示，SpringMVC+Mybatis搭建成功。

**博客来源：**http://blog.csdn.net/fengshizty

**源码地址：**http://download.csdn.net/detail/fengshizty/8406797

[Center]: /images/20220722/0a9b1cb79963470498832b171905b8e4.png
[Center 1]: /images/20220722/7788b34afff845968ccb8772689c8126.png
[Center 2]: /images/20220722/a4295f69386c4694a19491f286593f17.png
[Center 3]: /images/20220722/6cbc366333524fcb8ac4314bffce57ed.png
[Center 4]: /images/20220722/3e799304c9434c7aaf66892ef8a5bc37.png