@RequestMapping(value = "student-filter",method = RequestMethod.GET)
       public ResponseEntity<?> findAllByFilter(@RequestParam(value = "active") int active,@RequestParam(value = "queryStatus") int queryStatus,@RequestParam(value = "criterion") String criterion) {
           List<Student> student=null;

          try {
        students = this.studentService.findStudentByFilter(criterion);
              students = this.studentService.findAllByFilter(criterion);
              } catch(DataaccessException e) {

               return new ResponseEntity<>( HttpStatus.INTERNAL_SERVER_ERROR);
              }

           if(students == null) {
            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
              }
             return new ResponseEntity<List<Student>>(students,HttpStatus.OK);
           }

您如何将此代码转换为有角度的代码？ 我想在Angular版本中获得这个Spring Rest API代码