ou're trying to decode an invalid JSON String: \ne…ynchronousMethodHandler.java:121)\n\t... 78 more\n\n\n", message: "You're trying to decode an invalid JSON String: \ne…ynchronousMethodHandler.java:121)\n\t... 78 more\n\n\n"} r原因
时间: 2023-08-23 11:07:38 浏览: 82
根据你提供的信息,看起来你的程序在尝试解码一个无效的 JSON 字符串。这可能是由于以下原因之一引起的:
1. JSON 字符串格式错误,导致解码失败。
2. 传递给程序的 JSON 字符串不是一个有效的字符串。
3. 解码程序本身存在问题或不完善。
为了进一步确定问题的原因,你可能需要检查输入的 JSON 字符串是否正确并且符合 JSON 格式。你还可以查看程序代码以了解解码程序的实现方式,并查看是否存在逻辑问题或错误。
相关问题
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Date
This error occurs when you try to cast a String object to a Date object, but the String object is not a valid date format.
For example, if you have a String "hello" and try to cast it to a Date object like this:
Date date = (Date) "hello";
You will get a ClassCastException because "hello" is not a valid date format.
To fix this error, you need to make sure that the String object you are trying to cast is a valid date format. You can use a SimpleDateFormat object to parse the String into a Date object like this:
String dateString = "2021-01-01";
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date date = dateFormat.parse(dateString);
Now you can safely cast the Date object to a String object without getting a ClassCastException.
java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase:
This error occurs when you try to access a closed SQLiteDatabase object. This can happen when you try to perform a database operation on a SQLiteDatabase object which has already been closed.
To resolve this error, you need to ensure that you are not trying to access a closed SQLiteDatabase object. You can do this by checking the state of the SQLiteDatabase object before performing any operation on it.
Here is an example of how you can avoid this error:
1. Open the SQLiteDatabase object:
```
SQLiteDatabase db = dbHelper.getWritableDatabase();
```
2. Check the state of the SQLiteDatabase object:
```
if (db.isOpen()) {
// Perform database operations here
} else {
// Handle the case where the SQLiteDatabase object is closed
}
```
3. Close the SQLiteDatabase object when you are done with it:
```
db.close();
```
By following these steps, you can avoid the IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase error.
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