This repository was archived by the owner on Oct 23, 2024. It is now read-only.
This repository was archived by the owner on Oct 23, 2024. It is now read-only.
[BUG] fastjson2 将时间戳解析时间为LocalDateTime，较早的时间解析异常 #4537
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Description
问题描述
使用fastjson2解析1970年的时间时，报错 can not cast to java.time.LocalDateTime, from class java.lang.Integer。但是fastjson不会
环境信息
请填写以下信息：
- OS信息： MacOS 15 & centOS 7
- JDK信息：JDK8 & JDK17
- 版本信息：fastjson 2.0.25、2.0.39
重现步骤
- 执行以上代码，会提示报错
- 将
import com.alibaba.fastjson2.JSONObject改为import com.alibaba.fastjson.JSONObject; - 则正常
测试代码
package net.gaox.util.date.json.deserializer.test;
import com.alibaba.fastjson2.JSONObject;
import net.gaox.util.date.json.deserializer.model.Time2;
/**
* <p> </p>
*
* @author gaox·Eric
* @date 2024-10-10 17:21
*/
public class T2 {
public static void main(String[] args) {
String json = "{\"time\":0}";
JSONObject jsonObject = JSONObject.parseObject(json);
Time2 bean = jsonObject.toJavaObject(Time2.class);
System.out.println(bean.getTime());
String json2 = "{\"time\":1577836800000}";
Time2 bean2 = JSONObject.parseObject(json2, Time2.class);
System.out.println(bean2.getTime());
}
}
@Data
public class Time2 {
private LocalDateTime time;
}异常的结果（fastjson2的结果）
Connected to the target VM, address: '127.0.0.1:58990', transport: 'socket'
Exception in thread "main" com.alibaba.fastjson2.JSONException: can not cast to java.time.LocalDateTime, from class java.lang.Integer
at com.alibaba.fastjson2.util.TypeUtils.cast(TypeUtils.java:1521)
at com.alibaba.fastjson2.reader.FieldReader.acceptAny(FieldReader.java:429)
at com.alibaba.fastjson2.reader.ObjectReaderAdapter.createInstance(ObjectReaderAdapter.java:627)
at com.alibaba.fastjson2.JSONObject.to(JSONObject.java:1248)
at com.alibaba.fastjson2.JSONObject.toJavaObject(JSONObject.java:1258)
at net.gaox.util.date.json.deserializer.test.T2.main(T2.java:18)
Disconnected from the target VM, address: '127.0.0.1:58990', transport: 'socket'
Process finished with exit code 1
期待的正确结果（fastjson的结果）
Connected to the target VM, address: '127.0.0.1:58981', transport: 'socket'
1970-01-01T08:00
2020-01-01T08:00
Disconnected from the target VM, address: '127.0.0.1:58981', transport: 'socket'
Process finished with exit code 0
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