2.1 使用wrapper.lambda()方法 使用QueryWrapper构建出来一个 queryWrapper,然后使用方法lambda()来进行Lambda的操作,如下示例: @Test public void testQueryWrapper1() { QueryWrapper<User> wrapper = new QueryWrapper(); wrapper.lambda().like(User::getName,"悟"); List<User> userList = userMapper.selectList...
QueryWrapper<EduCourse> courseWrapper = new QueryWrapper<>(); //多条件组合查询 String title = courseQuery.getTitle(); String status = courseQuery.getStatus(); //判断条件值是够为空,如果不为空,拼接条件 if (!StringUtils.isEmpty(title)){ courseWrapper.like("title",title); } if (!StringUtils...
Wrapper之QueryWrapper、LambdaQueryWrapper以及LambdaQueryChainWrapper 1、QueryWrapper .like("email", "24252")//email对应数据库中列名 1/**2* 条件构造器 查询操作3*/4@Test5voidTestQueryWrapperSelect() {6//1、条件用法7List<User> userList = userMapper.selectList(newQueryWrapper<User>()8.like("email"...
Wrapper之QueryWrapper、LambdaQueryWrapper以及LambdaQueryChainWrapper 1、QueryWrapper .like("email", "24252")//email对应数据库中列名 1/**2* 条件构造器 查询操作3*/4@Test5voidTestQueryWrapperSelect() {6//1、条件用法7List<User> userList = userMapper.selectList(newQueryWrapper<User>()8.like("email"...
() ge >= * 这里用or() 因为默认是and */ @Test public void selectByWrapper3() { QueryWrapper<User> queryWrapper = new QueryWrapper<>(); queryWrapper.likeRight("name", "王").or().ge("age", 25).orderByDesc("age").orderByAsc("id"); List<User> userList = userMapper.selectList(...
QueryWrapper、LambdaQueryWrapper以及LambdaQueryChainWrapper用法 一、QueryWrapper .like("email","24252")//email对应数据库中列名 /** * 条件构造器 查询操作 */ @Test voidTestQueryWrapperSelect(){ //1、条件用法 List<User>userList=userMapper.selectList(newQueryWrapper<User>() ...
//pojo 主要是Wrapperble@Data@Builder@AllArgsConstructorpublicclassSchoolQueryPayloadimplementsWrapperble{@EqprivateInteger id;@LikeprivateString schoolName;//remark字段或者name字段like value即可@GroupOrLike(fields = {"schoolName","remark"})privateString remarkOrName; }@TestpublicvoidtestQueryWrapper(){/*...
//pojo 主要是Wrapperble @Data @Builder @AllArgsConstructor public class SchoolQueryPayload implements Wrapperble { @Eq private Integer id; @Like private String schoolName; //remark字段或者name字段like value即可 @GroupOrLike(fields = {"schoolName","remark"}) private String remarkOrName; } @Test...
If you look at the call to Table.View, you see an extra wrapper function around the handlers record—Diagnostics.WrapHandlers. This helper function is found in the Diagnostics module (that was introduced in the adding diagnostics lesson), and provides you with a useful way to automatically ...
QueryBuilder is database agnostic (like Dapper) - it should work with all ADO.NET providers (including Microsoft SQL Server, PostgreSQL, MySQL, SQLite, Firebird, SQL CE and Oracle), since it's basically a wrapper around the way parameters are passed to the database provider. DapperQueryBuilde...