DM8达梦数据库MyBatis 框架

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package com.dao;
import java.util.List;
import com.pojo.ProductCategory;
public interface ProductCategoryMapper {
    public List<ProductCategory> selectAll();
    public int selectCount();
    public ProductCategory selectProductCategoryById(Integer id);
    public void insertProductCategory(ProductCategory ProductCategory);
    public void deleteById(Integer id);
    public void updateProductCategory(ProductCategory ProductCategory);
}

<?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">
<!--命名空间会映射到接口-->
<mapper namespace="com.dao.ProductCategoryMapper">
    <!--parameterType 参数类型 -->
    <!--resultType 返回结果集类型 -->
    <!--查询所有数据-->
    <select id="selectAll" resultType="com.pojo.ProductCategory">
      select * from PRODUCTION.PRODUCT_CATEGORY;
    </select>
    <!--查询总条数-->
    <select id="selectCount" resultType="int">
      select count(*) from PRODUCTION.PRODUCT_CATEGORY;
    </select>
    <!--根据 ID 查询指定信息-->
    <!--有参数有返回值-->
    <select id="selectProductCategoryById" parameterType="java.lang.Integer"
            resultType="com.pojo.ProductCategory">
      select * from PRODUCTION.PRODUCT_CATEGORY WHERE PRODUCT_CATEGORYID = #{PRODUCT_CATEGORYID};
    </select>
    <!--插入信息-->
    <insert id="insertProductCategory" parameterType="com.pojo.ProductCategory" >
        INSERT into PRODUCTION.ProductCategory(name)VALUES (
          #{name}
        );
    </insert>
    <!--根据 id 删除信息-->
    <delete id="deleteById" parameterType="int">
        delete from PRODUCTION.PRODUCT_CATEGORY where PRODUCT_CATEGORYID = #{PRODUCT_CATEGORYID};
    </delete>

    <!--根据 id 修改信息-->
    <update id="updateProductCategory" parameterType="com.pojo.ProductCategory">
        update PRODUCTION.PRODUCT_CATEGORY set NAME = #{NAME}
        where PRODUCT_CATEGORYID = #{PRODUCT_CATEGORYID}
    </update>
</mapper>

package com.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 org.junit.Test;
import com.dao.ProductCategoryMapper;
import com.pojo.ProductCategory;
public class TestProduct {
    SqlSession sqlSession = null;
    ProductCategoryMapper productCategoryMapper = null;
    public void init() {
        try {
        //1. 生成 sqlsession factory biulder 对象
        SqlSessionFactoryBuilder sfb = new SqlSessionFactoryBuilder();
        //2. 加载配置文件作为一个输入流
        //这里 Resources 使用的包是 ibatis 包
        InputStream resourceAsStream;
            resourceAsStream = Resources.getResourceAsStream("mybatis-config.xml");
        //3. 通过会话工厂构造器对象和配置文件流构建一个会话构造工厂
        SqlSessionFactory factory = sfb.build(resourceAsStream);
        //4. 通过 SQL 会话工厂 //true 设置 mybatis 事务自动提交
        sqlSession = factory.openSession(true);
        productCategoryMapper = sqlSession.getMapper(ProductCategoryMapper.class);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    //测试插入信息
    @Test
    public void testInstert(){
        productCategoryMapper.insertProductCategory(new ProductCategory(null, "语文"));
    }
    //测试修改信息
    @Test
    public void testUpdate(){
        ProductCategory productCategory = productCategoryMapper.selectProductCategoryById(4);
        productCategory.setNAME("英语");
        productCategoryMapper.updateProductCategory(productCategory);
    }
    //测试根据 id 查询指定人信息
    @Test
    public void testSelectPersonById(){
        ProductCategory productCategory = productCategoryMapper.selectProductCategoryById(1);
        System.out.println(productCategory);
    }
    //测试全查
    @Test
    public void testSelectAll(){
        List<ProductCategory> list = productCategoryMapper.selectAll();
        for(ProductCategory p: list){
            System.out.println(p);
        }
    }
    //测试删除
    @Test
    public  void testDelete(){
        productCategoryMapper.deleteById(5);
    }
    public static void main(String[] args) {
        TestProduct test = new TestProduct();
        test.init();
        test.testUpdate();
        test.testSelectPersonById();
        test.testSelectAll();
        test.testDelete();
    }
}

<?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">
<!--命名空间会映射到接口-->
<mapper namespace="com.dao.TestBigDateMapper">
    <!--parameterType 参数类型-->
    <!--resultType 返回结果集类型-->
    <!--查询所有数据-->
    <select id="SelectFromTestBigDate" resultType="com.pojo.TestBigDate">
      select * from PRODUCTION.TEST_BIG_DATE;
    </select>
    <!--插入信息-->
    <insert id="InsertIntoTestBigDate" parameterType="com.pojo.TestBigDate" >
        INSERT into PRODUCTION.TEST_BIG_DATE("photo","describe","txt")VALUES (
            #{photo},#{describe},#{txt}
        );
    </insert>
</mapper>