ARTICLE DETAIL

建站实战干货

来自一线的建站与推广经验沉淀,每一条都经过真实交付验证。

【Lazy ORM】查询部分字段减少IO

2026/8/16 13:09:58 拓冰建站 浏览量
【Lazy ORM】查询部分字段减少IO
Gitee
版本信息 1.2.2-JDK17-SNAPSHOT
    @Testpublic void  selectNameIdAge(){LazyUserTest userNameIdAge = lazyLambdaStream.selectOne(LazyWrappers.<LazyUserTest>lambdaWrapper().eq(LazyUserTest::getId, 1).eq(LazyUserTest::getIsDeleted, false).onlyUseAs().as(LazyUserTest::getId,LazyUserTest::getId).as(LazyUserTest::getAge,LazyUserTest::getAge).as(LazyUserTest::getUsername,LazyUserTest::getUsername),LazyUserTest.class);// SELECT  lazy_user_test.id as id , lazy_user_test.username as username , lazy_user_test.age as age  from lazy_user_test where  lazy_user_test.id  = 1  and  lazy_user_test.is_deleted  = false  and  lazy_user_test.is_deleted  = falseSystem.out.println("只查询用户ID为1 的用户名称、ID、age:"+userNameIdAge);}