content: package com.alibaba.json.bvt.issue_2300;
  
  import com.alibaba.fastjson.JSON;
  import com.alibaba.fastjson.JSONObject;
  import com.alibaba.fastjson.annotation.JSONField;
  import junit.framework.TestCase;
  
  import java.util.Date;
  
  public class Issue2300 extends TestCase {
      public void test_for_issue() throws Exception {
          String text = "{\"createTime\":1548166745}";
  
          Order o = JSON.parseObject(text, Order.class);
          assertEquals(1548166745000L, o.createTime.getTime());
  
          String json = JSON.toJSONString(o);
          assertEquals("{\"createTime\":1548166745}", json);
  
          //新增校验1
          JSONObject jsonObject = JSONObject.parseObject(text);
          Order order1 = JSONObject.toJavaObject(jsonObject, Order.class);
          //校验不通过
          assertEquals(1548166745000L, order1.createTime.getTime());
  
          //新增校验2
          Order order2 = jsonObject.toJavaObject(Order.class);
          //校验不通过
          assertEquals(1548166745000L, order2.createTime.getTime());
      }
  
      public static class Order {
          @JSONField(format = "unixtime")
          public Date createTime;
      }
  }
  