MyBatis注解

1.@select注解

　　接口

//查询所有供应商
    @Select( "select * from smbms_provider")
    public List<Provider> getAllProvider(String proName);

　　测试类

//查询数据
    @Test
    public void SelectTest(){
        List<Provider> provider = providerTest.getAllProvider("BJ_GYS002");
        for (Provider providers:provider) {
            System.out.println(providers.getPid());
        }
    }

2.@insert注解

　　接口

//添加供应商
    @Insert("insert into smbms_provider (proCode,proName,proContact,proPhone,proAddress,proDesc,createdBy,creationDate,proFaxint)
" +
        "        values(#{proCode},#{proName},#{proContact},#{proPhone},#{proAddress},#{proDesc},#{createdBy},#{creationDate},#{proFaxint})")
    public int addProvider(Provider  provider);

　　测试类

//添加数据
    @Test
    public void AddTest(){
        Provider provider=new Provider();
        provider.setProCode("BJ_E1234");
        provider.setProName("北京臭豆腐公司");
        provider.setCreationDate(new Date());
        provider.setCreatedBy(BigInteger.valueOf(1));
        provider.setProAddress("北京市海淀区");
        provider.setProPhone("13011028454");
        provider.setProContact("zn");
        provider.setProDesc("非常臭");
        provider.setProFaxint("438-54250");
        int addProvider = providerTest.addProvider(provider);
        sqlSession.commit();
        System.out.println(addProvider);
    }

3.@delete注解

　　接口

 //删除供应商
    @Delete(" delete from smbms_provider where id=#{value}")
    public int delProvider(int id);

　　测试类

 @Test
    //删除数据
    public void deleteTest(){
        int delProvider = providerTest.delProvider(26);
        sqlSession.commit();
        System.out.println(delProvider);
    }

4.@update注解 

//修改供应商
    @Update(" update smbms_provider set proCode=#{proCode},proName=#{proName},proContact=#{proContact},proPhone=#{proPhone},proAddress=#{proAddress},proFaxint=#{proFaxint},proDesc=#{proDesc} where id=#{id}")
    public int updaProvider(Provider provider);

　　测试类 

@Test
    //修改数据
    public void updateTest(){
        Provider provider=new Provider();
        provider.setPid(24);
        provider.setProCode("ZN_ZN250");
        provider.setProName("北京臭豆腐公司");
        provider.setCreationDate(new Date());
        provider.setCreatedBy(BigInteger.valueOf(1));
        provider.setProAddress("北京市海淀区");
        provider.setProPhone("13011028454");
        provider.setProContact("郑楠");
        provider.setProDesc("非常臭");
        provider.setProFaxint("438-54250");
        int i = providerTest.updaProvider(provider);
        sqlSession.commit();
        System.out.println(i);
    }

5.关联查询一对多—@many注解

 

6.关联查询多对一——@one注解