maven+springMVC+mybatis+mysql详细过程

1、工程目录

a、在src/main/java文件夹中，新建包cn.springmvc.model(存放javabean),

cn.springmvc.dao（存放spring与mybatis连接接口）,

cn.springmvc.service（service接口）,

cn.springmvc.service.impl（service接口的实现），

b、在src/main/resource文件夹中，新建包conf（存放配置文件），

mapper（mybatis的mapper文件）

c、在src/test/java文件夹中，新建包cn.springmvc.test(存放测试文件）

2、引入依赖包

a、打开maven的pom文件，对本次开发所需使用的架包依次导入（maven项目管理的优势）

注：查找依赖结构有个不错的网站，http://search.maven.org/   只要输入包名选择相应版本，将代码拷贝到pom文件中，maven将会自动下载包

b、pom包文件;

<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>eyas.springmvc</groupId>
	<artifactId>springmvc</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>springmvc Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<properties>
		<!-- spring版本号 -->
		<spring.version>3.2.4.RELEASE</spring.version>
		<!-- mybatis版本号 -->
		<mybatis.version>3.2.4</mybatis.version>
		<!-- log4j日志文件管理包版本 -->
		<slf4j.version>1.6.6</slf4j.version>
		<log4j.version>1.2.9</log4j.version>
	</properties>
	<dependencies>
		<!-- spring核心包 -->
		<!-- springframe start -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</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-oxm</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-jdbc</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-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- springframe end -->

		<!-- mybatis核心包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<!-- mybatis/spring包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.2</version>
		</dependency>
		<!-- mysql驱动包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.29</version>
		</dependency>
		<!-- junit测试包 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
			<scope>test</scope>
		</dependency>
		<!-- 阿里巴巴数据源包 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.0.2</version>
		</dependency>

		<!-- json数据 -->
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-asl</artifactId>
			<version>1.9.13</version>
		</dependency>

		<!-- 日志文件管理包 -->
		<!-- log start -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<!-- log end -->
	</dependencies>
	<build>
		<finalName>springmvc</finalName>
	</build>
</project>
3、配置数据库链接属性（conf/ jdbc.properties（jdbc配置文件)）

jdbc_driverClassName=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/mydays?useUnicode=true&characterEncoding=utf-8
jdbc_username=root
jdbc_password=root
4、配置spring配置文件（conf/spring.xml(spring配置文件的扫描)）

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 引入jdbc配置文件 -->
    <context:property-placeholder location="classpath:conf/jdbc.properties"/>

    <!-- 扫描文件（自动将servicec层注入） -->
    <context:component-scan base-package="cn.springmvc.service"/>
</beans>

  conf/spring-mybatis.xml（spring与mybatis连接属性）

<?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:p="http://www.springframework.org/schema/p"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xmlns:util="http://www.springframework.org/schema/util"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.2.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
    http://www.springframework.org/schema/util
    http://www.springframework.org/schema/util/spring-util-3.2.xsd">

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init"
    destroy-method="close" >
    <property name="driverClassName">
      <value>${jdbc_driverClassName}</value>
    </property>
    <property name="url">
      <value>${jdbc_url}</value>
    </property>
    <property name="username">
      <value>${jdbc_username}</value>
    </property>
    <property name="password">
      <value>${jdbc_password}</value>
    </property>
    <!-- 连接池最大使用连接数 -->
    <property name="maxActive">
      <value>20</value>
    </property>
    <!-- 初始化连接大小 -->
    <property name="initialSize">
      <value>1</value>
    </property>
    <!-- 获取连接最大等待时间 -->
    <property name="maxWait">
      <value>60000</value>
    </property>
    <!-- 连接池最大空闲 -->
    <property name="maxIdle">
      <value>20</value>
    </property>
    <!-- 连接池最小空闲 -->
    <property name="minIdle">
      <value>3</value>
    </property>
    <!-- 自动清除无用连接 -->
    <property name="removeAbandoned">
      <value>true</value>
    </property>
    <!-- 清除无用连接的等待时间 -->
    <property name="removeAbandonedTimeout">
      <value>180</value>
    </property>
    <!-- 连接属性 -->
    <property name="connectionProperties">
      <value>clientEncoding=UTF-8</value>
    </property>
  </bean>

    <!-- mybatis文件配置，扫描所有mapper文件 -->
      <bean id="sqlSessionFactory"
          class="org.mybatis.spring.SqlSessionFactoryBean"
          p:dataSource-ref="dataSource"
          p:configLocation="classpath:conf/mybatis-config.xml"
          p:mapperLocations="classpath:mapper/*.xml"/><!-- configLocation为mybatis属性 mapperLocations为所有mapper-->

   <!-- spring与mybatis整合配置，扫描所有dao -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"
        p:basePackage="cn.springmvc.dao"
        p:sqlSessionFactoryBeanName="sqlSessionFactory"/>

   <!-- 对数据源进行事务管理 -->
  <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
        p:dataSource-ref="dataSource"/>
</beans>
5、java代码编写（model，dao，service层代码）（ cn.springmvc.model/User.java(用户基本信息)）

package cn.springmvc.model;

/**
 * 用户表
 */
public class User {

	private int id;
	private int state;
	private String nickname;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public int getState() {
		return state;
	}
	public void setState(int state) {
		this.state = state;
	}
	public String getNickname() {
		return nickname;
	}
	public void setNickname(String nickname) {
		this.nickname = nickname;
	}
}

cn.springmvc.dao/UserDAO.java(dao操作接口)

package cn.springmvc.dao;

import cn.springmvc.model.User;

public interface UserDAO {

	/**
	 * 添加新用户
	 * @param user
	 * @return
	 */
	public int insertUser(User user);

}

cn.springmvc.service/UserService.java(service层接口)

package cn.springmvc.service;

import cn.springmvc.model.User;

public interface UserService {

	public int insertUser(User user);
}

cn.springmvc.service.impl/UserServiceImpl.java(service层接口实现)

package cn.springmvc.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import cn.springmvc.dao.UserDAO;
import cn.springmvc.model.User;
import cn.springmvc.service.UserService;
@Service
public class UserServiceImpl implements UserService{

	@Autowired
	private UserDAO userDAO;

	@Override
	public int insertUser(User user) {
		// TODO Auto-generated method stub
		return userDAO.insertUser(user);
	}

}
6、mybatis配置
a、conf/mybatis-config.xml(mybatis配置的基本文件)）

<?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>
        <!-- 命名空间 -->
    <typeAliases>
         <typeAlias alias="User" type="cn.springmvc.model.User"/>
    </typeAliases>

    <!-- 映射map -->
    <mappers>
    </mappers>
</configuration>

b、mapper/UserMapper.xml(mybatis的实现)

<?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="cn.springmvc.dao.UserDAO">

         <insert id="insertUser" parameterType="User" keyProperty="id">
             insert into days_user(
         state,
         nickname)
         values
         (
         #{state},
         #{nickname})
         </insert>

</mapper>
7、接下来就可以写测试类了cn.springmvc.test/UserTest.java(用户测试模块)

package cn.springmvc.test;

import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.springmvc.model.User;
import cn.springmvc.service.UserService;

public class UserTest {

private UserService userService;

	@Before
	public void before(){
		@SuppressWarnings("resource")
		ApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"classpath:conf/spring.xml"
				,"classpath:conf/spring-mybatis.xml"});
		userService = (UserService) context.getBean("userServiceImpl");
	}

	@Test
	public void addUser(){
		User user = new User();
		user.setNickname("你好");
		user.setState(2);
		System.out.println(userService.insertUser(user));
	}
}
测试结果如图：

即完成插入功能！