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!
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