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Maven搭建SpringMVC+Mybatis项目详解

时间：2015-01-29 10:27:09      阅读：297      评论：0      收藏：0      [点我收藏+]

标签：springmvc   mybatis   数据库连接池   maven2   项目搭建   

   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：

         技术分享

       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：

        技术分享

     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>*.htmls</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：

     技术分享

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

     技术分享


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

    技术分享

ok，数据正常显示，SpringMVC+Mybatis搭建成功。

博客来源：http://blog.csdn.net/fengshizty


Maven搭建SpringMVC+Mybatis项目详解

标签：springmvc   mybatis   数据库连接池   maven2   项目搭建   

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