java - JSONObject 总是返回 "empty": false

Question

有一个 Spring 休息 Controller :

@RestController
@RequestMapping("secanalytique")
public class SectionAnalytiqueController {

    @GetMapping(value = "/sectionbyaxepro/{codecomp}", produces = "application/json")
    public JSONObject getByAxePro(@PathVariable String codecomp) {
        JSONObject jsonModel = new JSONObject();
        jsonModel.put("cce0","frityyy");
        return jsonModel;
    }

}

我用 Postman 做了一个测试:http://172.20.40.4:8080/Oxalys_WS/secanalytique/sectionbyaxepro/8 ;我得到的总是

{
    "empty": false
}

那么有什么问题呢？

Answer 1

我遇到了同样的问题，并找到了处理方法。

@GetMapping(value = "/test/{id}", produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Object> getById(@PathVariable String id) {
    JSONObject jsObj = new JSONObject();
    jsObj.put("t0","test0");
    JSONArray jsArr = new JSONArray();
    jsArr.put(jsObj.toMap());

    return new ResponseEntity<>(jsObj.toMap(), HttpStatus.OK);
    //return new ResponseEntity<>(jsArr.toList(), HttpStatus.OK);
}