如何在Spring boot Api post方法中接收定制的JSON对象

Question

我试图在@RequestBody中接收一个我不知道的JSON对象，即JSON对象可以是任何长度和数据。

假设JSON可以如下所示

{'seqNo': 10 }

{'country': 'US', 'state': 'CA'}

{'customer': 'Alex', product: 'UPS', date:'25-Mar-2018'}

@PostMapping(value = "/lookup")
public ResponseEntity<AppResponse> getLookup(@RequestBody LookupRequestObject lookupRequestObject) {

        // THIS METHOD KNOWS WHICH FIELD TO USE
        // FURTHER LOGIC WOULD BE HERE.


        return ResponseEntity.ok(response);

    }

Answer 1

您可以使用地图作为输入。然后，您可以根据地图中包含的字段类型来访问Field。

@PostMapping(value = "/lookup")
public ResponseEntity<AppResponse> getLookup(@RequestBody Map<String, Object> lookupRequestObject) {

    // THIS METHOD KNOWS WHICH FIELD TO USE
    // FURTHER LOGIC WOULD BE HERE.

    return ResponseEntity.ok(response);
}