java - Java中删除响应实体Json中的反斜杠

Question

我正在测试我的 Rest Controller ，当我在 java 中打印结果时，它们似乎没问题，但在 swagger 或 postman 上它返回斜杠。我该如何删除这些。

在Java中，我用日志打印对象，结果如下:

返回对象

    {
      create=Create{
        create={
          "Apartment": "Flat",
          "Drink": {
            "Alchol": {
              "Beer": {
                "Dutch": "Groeshe",
                "Zimbo": "Zambezi"
              },
              "Wine": "pocupine"
            },
            "NonAlcoholic": {
              "fizzy": "Coke",
              "juice": "liquifruit"
            }
          },
          "fruit": "Apple",
          "size": "Large",
          "color": "Red",
          "Proffesion": [
            "Java",
            "Lawyer"
          ],
          "cars": {
            "type": "BMW",
            "Color": "Brown"
          }
        }
      },
      update=null,
      delete=null
    }

我用谷歌搜索了一下，java中似乎没有任何东西可以解决这个问题。请帮忙

    @RestController
    public class ProcessController<T extends Serializable> {

    
    @Autowired
    private EngineImpl engine;

    
    @RequestMapping(value = "/api/processEngine", method = RequestMethod.POST, produces = "application/json")
    public ResponseEntity<ReturnObject<T>> processEngine(@RequestBody final Request request) throws Exception {
             
        ReturnObject<T> response = engine.calculate((T) request.getA(), (T) request.getB());

        LOG.info("ReturnObject engine response parameters: " + response);
        //Prints: ReturnObject{create=Create{create={"Apartment":"Flat","Drink":{"Alchol":{"Beer":{"Dutch":"Groeshe","Zimbo":"Zambezi"},"Wine":"pocupine"},"NonAlcoholic":{"fizzy":"Coke","juice":"liquifruit"}},"fruit":"Apple","size":"Large","color":"Red","Proffesion":["Java","Lawyer"],"cars":{"type":"BMW","Color":"Brown"}}}, update=null, delete=null}
        return new ResponseEntity<>(response, HttpStatus.OK);
    }
}

预期:

    {
      "create": {
        "create": {
            "Apartment": "Flat",
            "Drink": {
                "Alchol": {
                    "Beer": {
                        "Dutch": "Groeshe",
                        "Zimbo": "Zambezi"

                    },
                    "Wine": "pocupine"

                },
                "NonAlcoholic": {
                    "fizzy": "Coke",
                    "juice": "liquifruit"
                }
            },
            "fruit": "Apple",
            "size": "Large",
            "color": "Red",
            "Proffesion": ["Java", "Lawyer"],
            "cars": {
                "type": "BMW",
                "Color": "Brown"
            }
        },
        "update": null,
        "delete": null
    }
}

实际:

    {
      "create": {
        "create": "{\"Apartment\":\"Flat\",\"Drink\":{\"Alchol\":{\"Beer\":{\"Dutch\":\"Groeshe\",\"Zimbo\":\"Zambezi\"},\"Wine\":\"pocupine\"},\"NonAlcoholic\":{\"fizzy\":\"Coke\",\"juice\":\"liquifruit\"}},\"fruit\":\"Apple\",\"size\":\"Large\",\"color\":\"Red\",\"Proffesion\":[\"Java\",\"Lawyer\"],\"cars\":{\"type\":\"BMW\",\"Color\":\"Brown\"}}"
      },
      "update": null,
      "delete": null
    }

Answer 1

你需要使用解析器，以获得漂亮的 JSON 字符串，猜你正在使用 Jackson，所以你可以这样做:

ObjectMapper objectMapper = new ObjectMapper();
objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(yourObject);