Maven的学习资料收集--（八） 构建MyBatis项目

在这里，写一下，怎么使用Maven构建MyBatis项目。

1. 新建一个Web项目

可以参考前面的博客

2. 修改pom.xml，添加MyBatis依赖

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<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>com.deppon.demo</groupId>

<artifactId>test05</artifactId>

<packaging>war</packaging>

<version>0.0.1-SNAPSHOT</version>

<name>test05 Maven Webapp</name>

<url>http://maven.apache.org</url>

<!-- 属性配置 -->

<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

</properties>

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.10</version>

<scope>test</scope>

</dependency>

<!-- 添加MyBatis依赖 -->

<dependency>

<groupId>org.mybatis</groupId>

<artifactId>mybatis</artifactId>

<version>3.1.1</version>

</dependency>

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId>

<version>1.2.16</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-api</artifactId>

<version>1.6.1</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-nop</artifactId>

<version>1.6.4</version>

</dependency>

</dependencies>

<build>

<finalName>test05</finalName>

</build>

</project>

3. 添加mybatis-config.xml

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<?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>

<!-- 全局别名设置，在映射文件中只需写别名，而不必写出整个类路径 -->

<typeAliases>

<typeAlias type="com.deppon.test05.entity.PersonEntity" alias="PersonEntity"/>

</typeAliases>

<environments default="development">

<environment id="development">

<transactionManager type="JDBC" />

<dataSource type="POOLED">

<property name="driver" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />

<property name="url" value="jdbc:sqlserver://localhost:1433;DatabaseName=Demo" />

<property name="username" value="ygy" />

<property name="password" value="shishi" />

</dataSource>

</environment>

</environments>

<mappers>

<mapper resource="com/deppon/test05/mapper/PersonEntityMapper.xml" />

</mappers>

</configuration>

PersonEntityMapper.xml

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<?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="com.deppon.test05.mapper.PersonEntityMapper">

<!-- 查询所有用户 -->

<select id="queryAll" resultType="PersonEntity" >

select * from t_person

</select>

<!-- 插入一条记录 -->

<insert id="insert" parameterType="PersonEntity">

insert into t_person(id , name) values(#{id} , #{name})

</insert>

</mapper>

IPersonEntityDao.java

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package com.deppon.test05.dao;

import java.util.List;

import com.deppon.test05.entity.PersonEntity;

public interface IPersonEntityDao {

/**

* 插入一条记录

* @param person

*/

public void insert(PersonEntity person);

/**

* 查询所有记录

* @return

*/

public List<PersonEntity> queryAll();

}

PersonEntityDao.java

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package com.deppon.test05.dao.impl;

import java.util.List;

import org.apache.ibatis.session.SqlSession;

import com.deppon.test05.dao.IPersonEntityDao;

import com.deppon.test05.entity.PersonEntity;

import com.deppon.test05.util.MyBatisUtil;

public class PersonEntityDao implements IPersonEntityDao {

public static final String NAMESPACE = "com.deppon.test05.mapper.PersonEntityMapper";

@Override

public void insert(PersonEntity person) {

SqlSession session = MyBatisUtil.getSession();

session.insert(NAMESPACE + ".insert" , person);

session.commit();

session.close();

}

@Override

public List<PersonEntity> queryAll() {

SqlSession session = MyBatisUtil.getSession();

List<PersonEntity> personList = session.selectList(NAMESPACE + ".queryAll");

session.commit();

session.close();

return personList;

}

}

PersonEntity.java

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package com.deppon.test05.entity;

public class PersonEntity implements java.io.Serializable {

private static final long serialVersionUID = -1138245964662330288L;

private Integer id;

private String name;

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

@Override

public String toString() {

return "PersonEntity [id=" + id + ", name=" + name + "]";

}

}

MyBatisUtil.java

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package com.deppon.test05.util;

import java.io.IOException;

import java.io.InputStream;

import org.apache.ibatis.io.Resources;

import org.apache.ibatis.session.SqlSession;

import org.apache.ibatis.session.SqlSessionFactory;

import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class MyBatisUtil {

private static SqlSessionFactory factory = null;

private static void initialFactory() {

String resource = "mybatis-config.xml";

try {

InputStream in = Resources.getResourceAsStream(resource);

factory = new SqlSessionFactoryBuilder().build(in);

} catch (IOException e) {

e.printStackTrace();

}

}

public static SqlSession getSession() {

if(factory == null) {

initialFactory();

}

return factory.openSession();

}

}

测试程序：

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package com.deppon.test05.dao;

import java.util.List;

import org.junit.Before;

import org.junit.Test;

import com.deppon.test05.dao.impl.PersonEntityDao;

import com.deppon.test05.entity.PersonEntity;

public class PersonEntityDaoTest {

private IPersonEntityDao personEntityDao;

@Before

public void before() {

personEntityDao = new PersonEntityDao();

}

@Test

public void testQueryAll() {

List<PersonEntity> personList = personEntityDao.queryAll();

for(PersonEntity each : personList) {

System.out.println(each);

}

}

@Test

public void testInsert() {

PersonEntity person = new PersonEntity();

person.setId(200);

person.setName("乔巴");

personEntityDao.insert(person);

}

}

项目结构如下图所示：



注意：记得那两条命令哦，亲

（前面的博客有）

结果: