我正在使用带有以下代码库的 Spring 休息:
当我通过在请求正文中传递字符串值来调用 /info 时,如果我的后端数据库中不存在此值,我期待以下响应。
{"output":-10}
但相反,它返回以下响应:
{"id": 0, "output":-10}
谁能告诉我如何摆脱这个 id 默认值?如果 JSON 映射器中有一个布尔变量,那么它也将返回为
{"id": 0, "booleanVar": false, "output":-10}
谁能告诉我如何摆脱这个默认值?
控制器.java
@RequestMapping(value = "heartbeat", method = RequestMethod.GET, consumes="application/json")
public ResponseEntity<String> getHeartBeat() throws Exception {
String curr_time = myService.getCurrentTime();
return MyServiceUtil.getResponse(curr_time, HttpStatus.OK);
}
@RequestMapping(value = "info", method = RequestMethod.POST, consumes="application/json")
public ResponseEntity<String> getData(@RequestBody String body) throws Exception {
....
myInfo = myService.getMyInfo(myServiceJson);
return MyServiceUtil.getResponse(myInfo, responseHeader, HttpStatus.OK);
}
我的服务.java
@Override
public String getCurrentTime() throws Exception {
String currentDateTime = null;
MyServiceJson json = new MyServiceJson();
ObjectMapper mapper = new ObjectMapper().configure(SerializationConfig.Feature.DEFAULT_VIEW_INCLUSION, false);
try {
Date currDate = new Date(System.currentTimeMillis());
currentDateTime = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss").format(currDate);
json.setCurrentDateTime(currentDateTime);
ObjectWriter writer = mapper.writerWithView(Views.HeartBeatAPI.class);
return writer.writeValueAsString(json);
} catch (Exception e) {
throw new Exception("Excpetion in getCurrentTime: ", HttpStatus.BAD_REQUEST);
}
}
@Override
public String getMyInfo(MyServiceJson myServiceJson) throws Exception {
MyServiceJson json = new MyServiceJson();
json.setFirstName("hhh");
json.setLastName("abc");
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(json);
}
视图.java
public class Views {
public static class HeartBeatAPI { }
}
MyServiceJson.java
@JsonSerialize(include = Inclusion.NON_NULL)
public class MyServiceJson {
private int id;
private String firstName;
private String lastName;
@JsonView(Views.HeartBeatAPI.class)
private String currentDateTime;
// Getter/Setter for the above variables here
.....
}