Maven搭建SpringMVC+Mybatis项目详解-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_38271183/article/details/70212994

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：

创建maven项目，详细见上一篇maven创建（http://blog.youkuaiyun.com/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：

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.youkuaiyun.com/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;
	}

}