Boon 简明教程

Boon - Long To Date

ObjectMapper 类可用于处理 JSON 中不同的日期格式。该类可用于解析/生成日期的长版本。

ObjectMapper class can be used to work with different date formats in JSON. It can be used to parse/generate long version of date.

Example

以下示例使用 ObjectMapper 类从长版本生成日期字符串。

Following example is using ObjectMapper class to generate a Date string from a long version.

import java.util.Date;
import org.boon.json.JsonFactory;
import org.boon.json.ObjectMapper;

public class BoonTester {
   public static void main(String args[]) {
      ObjectMapper mapper = JsonFactory.create();
      String jsonString = "{\"name\":\"Mahesh\", \"age\":21, \"dateOfBirth\":976559400000}";

      //mapper converts long to date automatically
      Student student = mapper.readValue(jsonString, Student.class);
      System.out.println(student.dateOfBirth);

      //by default mapper converts date to long
      jsonString = mapper.writeValueAsString(student);
      System.out.println(jsonString);
   }
}
class Student {
   public String name;
   public int age;
   public Date dateOfBirth;

   public Student(String name, int age, Date dateOfBirth) {
      this.name = name;
      this.age = age;
      this.dateOfBirth = dateOfBirth;
   }
}

Output

以下是代码的输出 −

Given below is the output of the code −

Tue Dec 12 00:00:00 IST 2000
{"name":"Mahesh","age":21,"dateOfBirth":976559400000}