QueryWrapperqw=newQueryWrapper<>(); qw.between("age",10,100); qw.inSql("age","SELECT u.age from `user` u where age > 10 and age < 100"); List<User> userList = userMapper.selectList(qw); System.out.println("result: "+ userList.size()); for(User user: userList) { System.o...
java QueryWrapper qw = new QueryWrapper(); qw.eq(false, "column1", 0); // MyBatis-Plus 在第一个参数 MyBatis-Flex 的写法: java QueryWrapper qw = new QueryWrapper(); qw.eq("column1", 0, false); // MyBatis-Flex 在最后一个参数 ...
LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>(); queryWrapper.eq(User::getAge,30); queryWrapper.like(User::getName,"张"); QueryWrapper<User> qw=new QueryWrapper<>(); qw.eq("age",30); qw.like("name","张"); 可以放一个集合查询...
例如,如果你需要使用OR条件连接多个子条件,你可以这样做: QueryWrapper<User> queryWrapper = new QueryWrapper<>();queryWrapper.or(qw -> qw.like("username", "Alice").or().like("username", "Bob"));List<User> userList = userDao.selectList(queryWrapper); 在这个示例中,我们使用了.or(qw -> .....
qo.setParentId(parentId);intcount =this.count(newQueryWrapper<>(qo)); QueryWrapper<ScenePlateDefinition> qw =newQueryWrapper<>(); qw.eq("PARENT_ID", parentId); qw.likeRight("SCENE_CODE", plateCode_sceneCode);intcount =this.count(qw);...
QueryWrapper<Student > qw = new QueryWrapper<Student >(); if(StringUtils.isNotBlank(student.getName())){ qw.eq("s.name",student.getName()); } if(StringUtils.isNotBlank(student.getClassName())){ qw.like("c.name",student.getClassName()); } startPage(); List<Student > list = student...
sql 语句 select * from data_log where status is null and ((ind is null and data_type='A') or (ind is not null and data_type='B')) 1 2 3 4 QueryWrapper<T> qw =newQueryWrapper<>(); qw.isNull("status"); qw.and(a->a.isNull("ind").eq("data_type","A") ...
QueryWrapper<T>queryWrapper=newQueryWrapper<>(); 1. 其中,T是需要查询的实体类。 步骤2:添加查询条件和括号 接下来,可以通过 QueryWrapper 提供的方法来添加查询条件和括号。可以使用以下代码示例: queryWrapper.eq("column1",value1)// 添加等于条件.and((qw)->qw.eq("column2",value2).or().eq("column...
QueryWrapper<EventTagProcess> qw = new QueryWrapper<>(); if (beginDate != null && !beginDate.equals("") && endDate != null && !endDate.equals("")) { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); ...
QueryWrapper<Student > qw =newQueryWrapper<Student >();if(StringUtils.isNotBlank(student.getName())){ qw.eq("s.name",student.getName()); }if(StringUtils.isNotBlank(student.getClassName())){ qw.like("c.name",student.getClassName()); ...