使用Eclipse，Maven简单搭建Spring+MyBatis

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原创最新推荐文章于 2026-02-13 09:05:47 发布 492 阅读 AI 写同款· GEO 优化 ›

Eclipse搭建一个最简单的Spring框架Maven项目附带XML显式配置装载demo Eclipse搭建一个最简单的Spring框架Maven项目附带XML显式配置装载demo 实战spring的各种功能模块搭建项目。https://blog.youkuaiyun.com/qq_32454347/article/details/88689239#t11 立即下载

1、新建一个Maven Project

使用Eclipse自带的Maven插件，自动创建一个基于Maven的Web工程；（前提是开发环境一定要配置好Maven）

选择archetype为maven-archetype-webapp：

设置：

GroupId：com.study（正式项目为公司网址倒写）

ArtifactId：SMPro（项目名称，[模块名称]）

2、修复jsp页面报错

jsp页面报错，因为在构建路径中没有javax.servlet.http.HttpServlet，在pom.xml文件中添加servlet依赖包：

<dependency>
	<groupId>javax.servlet</groupId>
	<artifactId>javax.servlet-api</artifactId>
	<version>3.1.0</version>
	<!-- 只在编译和测试时运行 -->
	<scope>provided</scope>
</dependency>

3、完善项目目录结构

在Navigator视图下，补全目录结构如下：

右键项目-Properties，打开Java Build Path，补全Source下的目录，并观察Default output folder是否为***/target/classes目录；

4、添加该测试项目所需依赖jar包：

<dependencies>
	<!-- 使用junit4 -->
	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>4.11</version>
		<scope>test</scope>
	</dependency>
	<dependency>
		<groupId>javax.servlet</groupId>
		<artifactId>javax.servlet-api</artifactId>
		<version>3.1.0</version>
		<!-- 只在编译和测试时运行 -->
		<scope>provided</scope>
	</dependency>
	
	<!-- 补全项目依赖 -->
       <!-- 1:日志
       	  slf4j是规范/接口
         日志实现:log4j,logback,common-logging
         这里使用:slf4j + log4j
       -->
       <dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-log4j12</artifactId>
		<version>1.7.2</version>
	</dependency>
	<!-- 2:数据库相关依赖 -->
	 <dependency>
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
           <version>5.1.39</version>
           <scope>runtime</scope>
       </dependency>
       <!-- c3p0数据库连接池 -->
       <dependency>
           <groupId>c3p0</groupId>
           <artifactId>c3p0</artifactId>
           <version>0.9.1.2</version>
       </dependency>
        <!-- 3:DAO框架依赖：MyBatis依赖 -->
       <dependency>
           <groupId>org.mybatis</groupId>
           <artifactId>mybatis</artifactId>
           <version>3.3.0</version>
       </dependency>
       <!-- MyBatis自身实现的spring整合依赖 -->
       <dependency>
           <groupId>org.mybatis</groupId>
           <artifactId>mybatis-spring</artifactId>
           <version>1.2.3</version>
       </dependency>
	<!-- 4:spring依赖 -->
       <!-- 1) spring核心依赖-->
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-core</artifactId>
           <version>4.1.7.RELEASE</version>
       </dependency>
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-beans</artifactId>
           <version>4.1.7.RELEASE</version>
       </dependency>
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-context</artifactId>
           <version>4.1.7.RELEASE</version>
       </dependency>
       <!-- 2) spring dao层依赖-->
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-jdbc</artifactId>
           <version>4.1.7.RELEASE</version>
       </dependency>
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-tx</artifactId>
           <version>4.1.7.RELEASE</version>
       </dependency>
</dependencies>

5、建库建表

--创建数据库
CREATE DATABASE sm_project;
USE sm_project;
--创建用户表
CREATE TABLE tb_user(
	`user_id`				INT PRIMARY KEY AUTO_INCREMENT COMMENT '用户ID',
	`user_name`		VARCHAR(30) COMMENT '用户名',
	`user_birthday`	DATE COMMENT '用户生日',
	`user_salary`		DOUBLE COMMENT '用户工资'
)ENGINE=InnoDB DEFAULT CHARSET=UTF8 COMMENT='用户表';

6、创建实体类

@SuppressWarnings("serial")
public class User implements Serializable {
	private int id;
	private String name;
	private Date birthday;
	private double salary;
    //setter()/getter()/toString()略
}

7、定义DAO接口

public interface IUserDAO {
	public void insert(User user);
	public void delete(int id);
	public void update(User user);
	public User findById(int id);
	public List<User> findAll();
}

8、MyBatis中SQL映射文件：IUserDAO.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">
<!-- 其中命名空间指向与该文件同名的DAO层接口 -->
<mapper namespace="com.study.dao.IUserDAO">
	<!-- 通过resultMap解决实体类属性与数据库字段名不一致的问题 -->
	<resultMap type="com.study.entity.User" id="userResult">
		<!-- 
			其中id为主键，result为普通字段 
			property对应实体类属性，column对应字段名（更准确的说应该是查询结果集中的字段名）
		-->
		<id property="id" column="user_id"/>
		<result property="name" column="user_name"/>
		<result property="birthday" column="user_birthday"/>
		<result property="salary" column="user_salary"/>
	</resultMap>
	<!-- 插入数据后获得自增主键的值 -->
	<insert id="insert" keyProperty="id" keyColumn="user_id">
		INSERT INTO tb_user
			(user_name,user_birthday,user_salary)
		VALUES
			(#{name},#{birthday},#{salary})
	</insert>
	<!-- 修改用户内容 -->
	<update id="update">
		UPDATE tb_user
		SET
			user_name=#{name},
			user_birthday=#{birthday},
			user_salary=#{salary}
		WHERE
			user_id=#{id}
	</update>
	<!-- 根据id删除用户 -->
	<delete id="delete">
		DELETE FROM tb_user WHERE user_id=#{id}
	</delete>
	<!-- 根据id查询用户 -->
	<select id="findById" resultMap="userResult">
		SELECT user_id,user_name,user_birthday,user_salary FROM tb_user WHERE user_id=#{id}
	</select>
	<!-- 查询所有用户 -->
	<select id="findAll" resultMap="userResult">
		SELECT user_id,user_name,user_birthday,user_salary FROM tb_user
	</select>
</mapper>

9、MyBatis的配置文件：mybatis-config.xml

虽然后面使用Spring托管MyBatis，但是对于MyBatis的专属设置还是需要在这里设置；

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!-- 配置全局属性 -->
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true"/>
        <!-- 使用列别名替换列名 默认:true -->
        <setting name="useColumnLabel" value="true"/>
        <!-- 开启驼峰命名转换 -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
</configuration>

10、Spring与MyBatis整合配置文件：spring-mybatis.xml

<?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.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">
	<!-- 配置整合MyBatis -->
	<!-- 1:配置数据库相关参数 properties属性：${url} -->
	<context:property-placeholder location="classpath:jdbc.properties" />
	<!-- 2:数据库连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<!-- 配置连接池属性 -->
		<property name="driverClass" value="${jdbc.driver}" />
		<property name="jdbcUrl" value="${jdbc.url}" />
		<property name="user" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />

		<!-- c3p0连接池的私有属性 -->
		<property name="maxPoolSize" value="${maxPoolSize}" />
		<property name="minPoolSize" value="${minPoolSize}" />
		<!-- 关闭连接后不自动commit -->
		<property name="autoCommitOnClose" value="${autoCommitOnClose}" />
		<!-- 获取连接超时时间 -->
		<property name="checkoutTimeout" value="${checkoutTimeout}" />
		<!-- 当获取连接失败重试次数 -->
		<property name="acquireRetryAttempts" value="${acquireRetryAttempts}" />
	</bean>
	
	<!-- spring + MyBatis 精华 -->
    <!-- 约定大于配置 -->
    <!-- 3:配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBatis全局配置文件：mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!-- 扫描entity包 使用别名 org.asset.entity.User -> User -->
        <property name="typeAliasesPackage" value="com.study.entity"/>
        <!-- 扫描sql配置文件:mapper需要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>

    <!-- 4:配置扫描DAO接口包，动态实现DAO接口，并注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 给出需要扫描DAO接口包 -->
        <property name="basePackage" value="com.study.dao"/>
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

11、数据库连接配置文件：jdbc.properties

#jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/sm_project?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=

maxPoolSize=30
minPoolSize=10
autoCommitOnClose=false
checkoutTimeout=1000
acquireRetryAttempts=2

12、日志配置文件：log4j.properties

log4j.rootLogger=DEBUG, Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

13、测试

package com.study.dao;
import java.util.Date;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.study.entity.User;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath:spring-mybatis.xml"})
public class IUserDAOTest {
	private Logger logger = LoggerFactory.getLogger(IUserDAOTest.class);
	@Autowired
	private IUserDAO userDAO;
	@Test
	public void testInsert() {
		User user = new User();
		user.setBirthday(new Date());
		user.setName("James");
		user.setSalary(15000.0);
		this.userDAO.insert(user);
		logger.info("insert the user={}",user);
		this.userDAO.delete(user.getId());
		User u = this.userDAO.findById(user.getId());
		logger.info("after delete the user={}", u);
	}
	@Test
	public void testUpdate() {
		User user = new User();
		user.setBirthday(new Date());
		user.setName("Daniel");
		user.setSalary(13000.0);
		logger.info("before update the user={}", user);
		this.userDAO.insert(user);
		user.setSalary(22000.0);
		this.userDAO.update(user);
		User u = this.userDAO.findById(user.getId());
		logger.info("after update the user={}", u);
		this.userDAO.delete(u.getId());
	}
	@Test
	public void testFindAll() {
		List<User> users = this.userDAO.findAll();
		logger.info("all the users={}", users);
	}
}

打印日志结果如下：

2017-08-24 15:21:06,805 [main] INFO  [com.study.dao.IUserDAOTest] - all the users=[User [id=1, name=John, birthday=Wed Aug 23 00:00:00 CST 2017, salary=10000.0], User [id=2, name=Smith, birthday=Thu Aug 24 00:00:00 CST 2017, salary=20000.0], User [id=4, name=King, birthday=Thu Aug 24 00:00:00 CST 2017, salary=30000.0]]
2017-08-24 15:21:06,818 [main] INFO  [com.study.dao.IUserDAOTest] - insert the user=User [id=11, name=James, birthday=Thu Aug 24 15:21:06 CST 2017, salary=15000.0]
2017-08-24 15:21:06,825 [main] INFO  [com.study.dao.IUserDAOTest] - after delete the user=null
2017-08-24 15:21:06,834 [main] INFO  [com.study.dao.IUserDAOTest] - before update the user=User [id=12, name=Daniel, birthday=Thu Aug 24 00:00:00 CST 2017, salary=13000.0] 2017-08-24 15:21:06,840 [main] INFO  [com.study.dao.IUserDAOTest] - after update the user=User [id=12, name=Daniel, birthday=Thu Aug 24 00:00:00 CST 2017, salary=22000.0]

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