import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
public static void testList() {
try
{
String json = "[\r\n"
+ " {\r\n"
+ " \"date\": \"2024-06-10\",\r\n"
+ " \"slots\": [\r\n"
+ " {\r\n"
+ " \"createDate\": \"2024-06-10T11:54:58.240+01:00\",\r\n"
+ " \"expireDate\": \"2024-06-10T11:59:58.240+01:00\",\r\n"
+ " \"id\": 1176592662,\r\n"
+ " \"intervention\": {\r\n"
+ " \"code\": \"FS\",\r\n"
+ " \"name\": \"FA Simple\"\r\n"
+ " },\r\n"
+ " \"timeslot\": {\r\n"
+ " \"code\": \"AM\",\r\n"
+ " \"end\": \"13:00\",\r\n"
+ " \"name\": \"Morning\",\r\n"
+ " \"start\": \"08:00\"\r\n"
+ " }\r\n"
+ " }\r\n"
+ " ]\r\n"
+ " },\r\n"
+ " {\r\n"
+ " \"date\": \"2024-06-10\",\r\n"
+ " \"slots\": [\r\n"
+ " {\r\n"
+ " \"createDate\": \"2024-05-22T11:54:58.240+01:00\",\r\n"
+ " \"expireDate\": \"2024-05-22T11:59:58.240+01:00\",\r\n"
+ " \"id\": 1176592671,\r\n"
+ " \"intervention\": {\r\n"
+ " \"code\": \"FS\",\r\n"
+ " \"name\": \"FA Simple\"\r\n"
+ " },\r\n"
+ " \"timeslot\": {\r\n"
+ " \"code\": \"PM\",\r\n"
+ " \"end\": \"18:00\",\r\n"
+ " \"name\": \"Afternoon\",\r\n"
+ " \"start\": \"13:00\"\r\n"
+ " }\r\n"
+ " }\r\n"
+ " ]\r\n"
+ " }\r\n"
+ "]";
JSONArray jsonArr = JSONArray.parseArray(json);
System.out.println(jsonArr.toJavaObject(List.class));
}catch(Exception e) {
e.printStackTrace();
}
}
java.lang.ClassCastException: class com.alibaba.fastjson.JSONObject cannot be cast to class com.alibaba.fastjson2.JSONObject (com.alibaba.fastjson.JSONObject and com.alibaba.fastjson2.JSONObject are in unnamed module of loader 'app')
at com.alibaba.fastjson2.reader.ObjectReaderImplList.createInstance(ObjectReaderImplList.java:302)
at com.alibaba.fastjson2.reader.ObjectReader.createInstance(ObjectReader.java:37)
at com.alibaba.fastjson.JSONArray.toJavaObject(JSONArray.java:877)
at com.test.TestMain.testMap(TestUrl.java:165)
at com.test.TestMain.main(TestUrl.java:115)
问题描述
使用FastJson1.x的api出现2.x的转型失败异常。
环境信息
重现步骤
如何操作可以重现该问题：
期待的正确结果
能正常输出List信息，不再抛出转型异常
相关日志输出
java.lang.ClassCastException: class com.alibaba.fastjson.JSONObject cannot be cast to class com.alibaba.fastjson2.JSONObject (com.alibaba.fastjson.JSONObject and com.alibaba.fastjson2.JSONObject are in unnamed module of loader 'app')
at com.alibaba.fastjson2.reader.ObjectReaderImplList.createInstance(ObjectReaderImplList.java:302)
at com.alibaba.fastjson2.reader.ObjectReader.createInstance(ObjectReader.java:37)
at com.alibaba.fastjson.JSONArray.toJavaObject(JSONArray.java:877)
at com.test.TestMain.testMap(TestUrl.java:165)
at com.test.TestMain.main(TestUrl.java:115)
附加信息