标签：实体 turn tag color bat 返回 main ati 对象
MyBatis 是支持定制化 SQL、存储过程以及高级映射的优秀的持久层框架。MyBatis 避免了几乎所有的 JDBC 代码和手动设置参数以及获取结果集。MyBatis 可以对配置和原生Map使用简单的 XML 或注解，将接口和 Java 的 POJOs(Plain Old Java Objects,普通的 Java对象)映射成数据库中的记录。
MyBastis是个半自动化的ORM工具，其在配置文件XML里面进行SQL的拼写，当然与实体框架entityframework是有很大的区别。
先用 eclipse建立一个java项目、数据库使用mysql、引用MyBastis外部是3.4.1
首先进行实体的建立
package model; public class student { public String name,address; public int age; public student() { //构造函数 } public String getname() { return this.name; } public void setname(String name) { this.name=name; } public String getaddress() { return this.address; } public void setaddress(String address) { this.address=address; } public int getage() { return this.age; } public void setage(int age) { this.age=age; } }
然后在建立根目录的Config的配置
<?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> <typeAliases> <typeAlias type="model.student" alias="student" /> </typeAliases> <environments default="development"> <environment id="development"> <transactionManager type="jdbc" /> <dataSource type="POOLED"> <property name="driver" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/school?useSSL=true" /> <property name="username" value="root" /> <property name="password" value="123456" /> </dataSource> </environment> </environments> <mappers> <mapper resource="mapper/mappers.xml" /> </mappers> </configuration>
再然后进行mapper的建立
<?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="dao.StudentMapper"> <select id="selectsudent" parameterType="String" resultType="student"> select name,age,address from student where name=#{name} </select> <insert id="insertstudent" parameterType="student"> insert into student(name,age,address) value(#{name},#{age},#{address}) </insert> </mapper>
在定义相关接口
package dao; import model.student; public interface StudentMapper { /* * 返回一个model */ public student selectsudent(String Id); /* * 插入一条数据 */ public void insertstudent(student model); }
package mybastis; import java.io.IOException; import org.apache.ibatis.io.Resources; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; import dao.StudentMapper; import model.student; public class studentsmain { private static SqlSessionFactory getSessionFactory() { SqlSessionFactory sessionFactory = null; String resource = "Config.xml"; try { sessionFactory = new SqlSessionFactoryBuilder().build(Resources .getResourceAsReader(resource)); } catch (IOException e) { e.printStackTrace(); } return sessionFactory; } public static void main(String[] args) { SqlSession sqlSession = getSessionFactory().openSession(); StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class); student user = studentMapper.selectsudent("dddd"); System.out.println(user.getaddress()+user.getage()+user.getname } }
未完待续。。。。。
MyBatis官网: http://www.mybatis.org/mybatis-3/zh/
标签：实体 turn tag color bat 返回 main ati 对象
原文地址：http://www.cnblogs.com/leizhizhiyuyali/p/6184451.html
