mybits(2)增删改查

CustomerMapper.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">
 
<mapper namespace="com.kaibing.mapper.CustomerMapper">
    <!-- 根据ID查询 -->
     <select id="findCustomerById" parameterType="Integer" 
         resultType="com.kaibing.pojo.Customer">
     select * from t_customer where id = #{id}
     </select>
     
     <!-- 模糊查询 -->
     <select id="findCustomerByName" parameterType="String" 
         resultType="com.kaibing.pojo.Customer">
         select * from t_customer where username like '%${value}%'
     </select>
     
     <!-- 插入用户 -->
     <insert id="addCustomer" parameterType="com.kaibing.pojo.Customer">
         insert into t_customer(username,jobs,phone)
         values(#{username},#{jobs},#{phone})
     </insert>
     
     <!-- 更新 -->
     <update id="updateCustomer" parameterType="com.kaibing.pojo.Customer">
         update t_customer set 
         username=#{username},jobs=#{jobs},phone=#{phone}
         where id=#{id}
     </update>
     
     <!-- 删除 -->
     <delete id="deleteCustomer" parameterType="Integer">
         delete from t_customer where id=#{id}
     </delete>
</mapper>

MybitsTest.java

package com.kaibing.test;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

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 com.kaibing.pojo.Customer;

public class MybitsTest {
    
    public static void main(String[] args) {
        String resource = "mybits-config.xml";
//        读取配置文件
        InputStream inputStream=null;
        try {
            inputStream = Resources.getResourceAsStream(resource);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
//        构建配置文件工厂
        SqlSessionFactory sqlSessionFactory = 
                new SqlSessionFactoryBuilder().build(inputStream);
//        创建会话
        SqlSession sqlSession = sqlSessionFactory.openSession();
        
        
        
        
//        查询ById
        Customer customer =  sqlSession.selectOne("com.kaibing.mapper.CustomerMapper"
                + ".findCustomerById",1);
//        输出结果
        System.out.println(customer.toString());
        
        
        
        
        
//        查询like ByName
        List<Customer> customers =  sqlSession.selectList("com.kaibing.mapper.CustomerMapper"
                + ".findCustomerByName","g");
//        输出结果
        System.out.println("|||||||||||||||||||||||");
        for(Customer cust : customers) {
            System.out.println(cust);
        }
        
        
//        Customer insertCustomer = new Customer();
//        insertCustomer.setJobs("大傻");
//        insertCustomer.setPhone("11111111");
//        insertCustomer.setUsername("wanger");
////        插入
//        Integer num =  sqlSession.insert("com.kaibing.mapper.CustomerMapper"
//                + ".addCustomer",insertCustomer);
////        输出结果
//        System.out.println("|||||||||||||||||||||||");
//        System.out.println(num);
        
        Customer updateCustomer = new Customer();
        updateCustomer.setId(4);
        updateCustomer.setJobs("二傻");
        updateCustomer.setPhone("22222");
        updateCustomer.setUsername("wangsan");
//        插入
        Integer update =  sqlSession.update("com.kaibing.mapper.CustomerMapper"
                + ".updateCustomer",updateCustomer);
//        输出结果
        System.out.println("|||||||||||||||||||||||--");
        System.out.println(update);
        
//        插入
        Integer delete =  sqlSession.delete("com.kaibing.mapper.CustomerMapper"
                + ".deleteCustomer",1);
//        输出结果
        System.out.println("|||||||||||||||||||||||");
        System.out.println("delete"+delete);
        
//        提交事务
        sqlSession.commit();
        
//        关闭会话
        sqlSession.close();
    }
    

}