处理数组中的JSON响应日期

Question

so I'm inserting the date of birth to an API, and the API returns the updated information, which i'm supposed to present on another page after handling the data in java backend.

Here is what gets returned in JSON:

"firstname": "John",
"middlename": "The",
  "lastname": "Doe",
  "displayName": "John The Doe",
  "dateOfBirth": [
    1994,
    3,
    26
  ]

so what I'm having trouble with, is picking out the 3 (year/month/day) in separate variables, because if theres no 0 in 03 ( mars for example ) i want to add the 0, same goes with day.

Here i'm getting the object:

@Override
public Object getDateOfBirth() {
    return get("dateOfBirth");
}

But i'm getting [1994,3,26] which obviously looks very bad displayed on a website.

How would you get the 3 "1994,3,26" in different variables?

Any help is greatly appreciated.

Answer 1

if you are using Java 8 or later, you can use LocalDate . The LocalDate class represents a date-only value without time-of-day and without time zone.

LocalDate.of(year, month, day); //2015-12-22
LocalDate.of(Integer.parseInt(dateOfBirth[0]), Integer.parseInt(dateOfBirth[1]), Integer.parseInt(dateOfBirth[2]));

Answer 2

take a look on this link This can help. I can recommend you to use the Gson

if you use maven add this dependency to the pom

<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.0</version>
</dependency>



public class MyJsonAsClass
{
    private String firstname;
    private String middlename;
    private String lastname;
    private String displayName;
    private List<String> dateOfBirth;

    public MyJsonAsClass()
    {

    }

    public static MyJsonAsClass fromString(String json) 
    {
       Gson gson = new Gson();
       MyJsonAsClass info = gson.fromJson(json, MyJsonAsClass.class);
       return info;
    }
    /*you need to add getters & setters */

    public List<String> getdateOfBirth()
    {
       for (String date : dateOfBirth) {
           if (date.length()==1)
               date='0'+date;
       }
       return dateOfBirth;
    }

Answer 3

But i'm getting [1994,3,26] which obviously looks very bad displayed on a website.

How would you get the 3 "1994,3,26" in different variables?

You can transform the output of returned array object into custom format for display purpose. Assuming get("dateOfBirth") returns and Array object. You can do something similar ...

String result = Arrays.toString(dateOfBirthArrayObject).replaceAll("[\\[\\]]", "");

System.out.println(result);

Output: 1994, 3, 26