I have the following Java Entity:
public class Round {
private ObjectId _id;
#NotEmpty
#Getter
#Setter
#Accessors(fluent = true)
#JsonProperty("userId")
private String userId;
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy")
#JsonDeserialize(using = LocalDateDeserializer.class)
#JsonSerialize(using = LocalDateSerializer.class)
#Getter
#Setter
#Accessors(fluent = true)
#JsonProperty("date")
private LocalDate date;
//other fields
}
When I do a POST to my Spring Boot REST web app with JSON Body:
{
"userId": "user3",
"date": "20-01-2020"
}
The date is persisted in Mongo as follows:
2020-01-20T00:00:00.000+00:00
How can I get the date to persist as simply:
20-01-2020
It's not Java problem, MongoDB uses Date format similar to JavaScript Date format.
If you want to save just dd-MM-YYYY you may want to change your column type to String.
If it's not possible then you need to rewrite your serializer to return String representation of date (and of course rewrite deserializer to parse that string into LocalDate
Related
I have a POJO as below:
#Data
#Builder
#AllArgsConstructor
#NoArgsConstructor
#JsonIgnoreProperties(ignoreUnknown = true)
public class CalendarData {
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd/MM/yyyy HH:mm:ss")
// field to contain formatted date as per clients requirement - shud be mirror of "date"
private String formattedDate;
private long date;
private String errorCode;
private String subErrorCode;
}
Downstream service is only sending date field as epoch and i want to have the formattedDate populated in run time in given format.
I can always write a custom function to format the data, but want to understand is there any native jackson way or custom setter to do that.
You're almost doing it right. However having a #JsonFormat-Annotation on a String field does not make to much sense, because if it already is String, there is nothing to convert for Jackson anymore. You can just make both fields of type Date and the #JsonFormat annotation on the formattedDate field will serialize it into the proper JSON String representation, exactly in the format you specified in the pattern. Jackson will by default serialize all java.util.Date Object of an object it needs to serialize into the epoch milliseconds as a regular JSON number. So this would work for you. However, as both fields in the final JSON will refer to the exact same Date object it feels weird to have them both as fields of the CalendarData object. I would suggest you just give CalendarData a single field date and then create a getter method for the formattedDate field. Here is what this could look like. By default Jackson will pick up all getter functions and serialize their returned data into the generated json object.
#Data
#JsonIgnoreProperties(ignoreUnknown = true)
public class CalendarData {
CalendarData(final Date date) {
this.date = date;
}
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd/MM/yyyy HH:mm:ss")
private Date getFormattedDate(){
return this.date;
};
private Date date;
}
UPDATE
As you updates you question I also want to update my answer. I recommend you the following (analogous to what I already explained above).
#Data
#Builder
#AllArgsConstructor
#NoArgsConstructor
#JsonIgnoreProperties(ignoreUnknown = true)
public class CalendarData {
private Date date;
private String errorCode;
private String subErrorCode;
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd/MM/yyyy HH:mm:ss")
// field to contain formatted date as per clients requirement - shud be mirror of "date"
private Date getFormattedDate(){
return this.date;
};
}
Then in my main I tried it out
public static void main(String[] args) throws JsonProcessingException {
ObjectMapper mapper = new ObjectMapper();
CalendarData data = CalendarData.builder()
.errorCode("23")
.subErrorCode("42")
.date(new Date())
.build();
System.out.println(mapper.writeValueAsString(data));
}
Which perfectly prints out
{
"date": 1676642216673,
"errorCode": "23",
"subErrorCode": "42",
"formattedDate": "17/02/2023 13:56:56"
}
I am facing problem passing date as json data through postman. In case of Mandetory date with #NotNull annotation, no problem. The other date is accepting null. But at the time of updation, that date creates problem.
I am using Java 1.8 with spring boot & MySql DB. Please help
The following links I have visited, but does not fit with this.
LocalDateTime parsing with jackson
JSON parse error: Can not construct instance of java.time.LocalDate: no String-argument constructor/factory method to deserialize from String value
https://stackoverflow.com/a/29959842/3415090
JSON Java 8 LocalDateTime format in Spring Boot
I have also used
#JsonSerialize(using = LocalDateSerializer.class)
#JsonDeserialize(using = LocalDateDeserializer.class)
But problem remains as it is.
My UX
public class LeaveApplUx {
#JsonIgnore
#Size(max = 5, message = "Employee Code Must Be Within 4 To 5 Character Long Or Blank")
private final String employeeCode;
#NotNull(message = "Start Date Empty")
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy")
private final LocalDate startDate;
#JsonIgnore
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy")
private final LocalDate rejoinDate;
public LeaveApplUx(
#Size(min = 4, max = 5, message = "Employee Code Must Be Within 4 To 5 Character Long Or Blank")
#JsonProperty("employeeCode") String employeeCode,
#NotNull(message = "Start Date Empty") #JsonProperty("startDate") LocalDate startDate,
#JsonProperty("rejoinDate") LocalDate rejoinDate) {
this.employeeCode = employeeCode;
this.startDate = startDate;
this.rejoinDate = rejoinDate;
}
// GETTERS
}
At the time of creation, it works fine.
{
"employeeCode": "B426",
"startDate": "01-03-2023"
}
Input Parameters : {"employeeCode":"B426","startDate":{"year":2023,"month":"MARCH","monthValue":3,"dayOfMonth":1,"leapYear":false,"dayOfWeek":"WEDNESDAY","dayOfYear":60,"era":"CE","chronology":{"id":"ISO","calendarType":"iso8601"}},"rejoinDate":null}
Record saved properly in DB
But at the time of updation, it creates error.
{
"employeeCode": "B426",
"startDate": "01-03-2023",
"rejoinDate": "06-03-2023"
}
JSON parse error:
Cannot deserialize value of type `java.time.LocalDate` from String "06-03-2023": Failed to deserialize java.time.LocalDate: (java.time.format.DateTimeParseException) Text '06-03-2023' could not be parsed at index 0; nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `java.time.LocalDate` from String "06-03-2023": Failed to deserialize java.time.LocalDate: (java.time.format.DateTimeParseException) Text '06-03-2023' could not be parsed at index 0
at [Source: (PushbackInputStream); line: 14, column: 19] (through reference chain: org.myapp.ux.hr.leave.LeaveApplUx["rejoinDate"])
Since you set values through contructor, not setters, you should put #JsonFormat(...) on constructor parameters, not fields. This should fix it:
public class LeaveApplUx {
#JsonIgnore
private final String employeeCode;
private final LocalDate startDate;
#JsonIgnore
private final LocalDate rejoinDate;
public LeaveApplUx(#JsonProperty("employeeCode") String employeeCode,
#JsonProperty("startDate") #JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy") LocalDate startDate,
#JsonProperty("rejoinDate") #JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy") LocalDate rejoinDate) {
this.employeeCode = employeeCode;
this.startDate = startDate;
this.rejoinDate = rejoinDate;
}
//getters
}
I'm developing a simple REST Controller. I'm receiving a SimpleDateFormat object in Request body. Looks like that:
2014-04-13T03:42:06-02:00
My current method now is:
#PostMapping
public ResponseEntity<Flight> addFlight(#RequestBody JSONObject object) {
Flight newFlight = new Flight(object.get("flightNumber").toString(), new
SimpleDateFormat ( object.get("departureDate").toString()));
repository.save(newFlight);
return ResponseEntity.status(HttpStatus.ACCEPTED).body(newFlight);
}
And class
#Data
#Entity
#DynamicUpdate
#NoArgsConstructor(access = AccessLevel.PRIVATE, force = true)
#RequiredArgsConstructor
#AllArgsConstructor
public class Flight {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
private final String flightNumber;
private final SimpleDateFormat date;
}
Everything is compiling fine, but when I'm sending POST or GET I receive all of the data that I've passed, but SimpleDateFormat is null. How could I repair it?
I've also tried to pass Object to FlightClass and then use a converter in the class's constructor, but I've still had null.
SimpleDateFormat is a legacy class and i would recommend OffsetDateTime since your input represents ISO-8601 with offset
A date-time with an offset from UTC/Greenwich in the ISO-8601 calendar system, such as 2007-12-03T10:15:30+01:00.
OffsetDateTime dateTime = OffsetDateTime.parse(object.get("departureDate").toString());
Here is my document:
#Data
#Accessors(chain = true)
#Document("Template_Schema")
public class TemplateSchema {
#Id
private String id;
private ZonedDateTime activeFrom;
private ZonedDateTime activeTo;
}
I want to set a maximum date in activeTO field and save it to mongo using a repository.
I've already tried this:
TemplateSchema schema = new TemplateSchema();
Instant maxInstant = Instant.ofEpochMilli(Long.MAX_VALUE);
schema.setActiveTo(maxInstant.atZone(ZoneOffset.UTC));
templateSchemaRepository.save(schema);
This piece of code saves the data. But the date is invalid.
What is the solution to set a maximum date?
I have a class like this. I want to enforce that the two Date fields should take in the request only if the date in request comes in a valid ISO Date time format like: 2021-01-19T12:20:35+00:00
#Data
#AllArgsConstructor
#NoArgsConstructor
#Builder
#Validated
public class EDDDetail {
#NotBlank
private String versionId;
#NotNull
private Date minTime;
#NotNull
private Date maxTime;
}
How to achieve this? Currently this accepts a date in long format (epoch time [e.g.: 1611058835000] ) and other valid dates as well like 22-02-2021 etc.
I want to throw a bad request if the date format in the request is not an ISO format date.
You can use #JsonFormat annotation with provided pattern to format the date
E.g:
#JsonFormat(pattern = "yyyy-MM-dd")
You can use the #JsonFormat annotation to define your pattern:
#NotNull
#JsonFormat(pattern="dd-MM-yyyy")
private Date minTime;
#NotNull
#JsonFormat(pattern="dd-MM-yyyy")
private Date maxTime;
If you want to accept multiple patterns you can get some implementation on this link: Configure Jackson to parse multiple date formats