com.parse.ParseRequest$ParseRequestException: 无效的会话令牌 [英] com.parse.ParseRequest$ParseRequestException: invalid session token

问题描述

您好，我正在开发 Android 应用程序，其中使用了 parse cloud.在我尝试从解析中获取数据之后，我已经注册到系统中.

Hello I am working on android app in which I am using parse cloud. I have signUp into the system then after I am trying to fetch data from parse.

但我每次都遇到异常

com.parse.ParseRequest$ParseRequestException:会话令牌无效

com.parse.ParseRequest$ParseRequestException: invalid session token

String userName = ParseUser.getCurrentUser().getUsername();
ParseQuery<ParseObject> parseQuery = ParseQuery.getQuery("users");
parseQuery.findInBackground(new FindCallback<ParseObject>() {

    @Override
    public void done(List<ParseObject> list, ParseException parseException) {

    }
});

我们如何解决这个问题.

How we can resolve this problem.

推荐答案

Googling 和 Parse 文档没有提供太多有关此异常的信息，但我发现了一些常见错误.您应该将用户视为 ParseUser，而不是 ParseObject.

Googling and Parse docs didn't give too much info about this exception, but There are few common mistakes I found. You should treat users as ParseUser, not ParseObject.

ParseQuery<ParseUser> query = ParseUser.getQuery();

另一种情况:需要指定在后台查找什么.如果是username，那么写:

One more case: need to specify what to find in background. If it is username, so write:

parseQuery.whereEqualTo("username", userName);

最后回调将包含 List 和 ParseUsers，而不是 ParseObjects

And finally callback will contain List with ParseUsers, not ParseObjects

query.findInBackground(new FindCallback<ParseUser>() {
  public void done(List<ParseUser> objects, ParseException e) {
  }
});

我不确定异常是否会消失，但我希望这个答案无论如何都会有用.

I'm not sure exception will be gone, but I hope this answer will be useful anyways.

一些有用的链接:文档示例、answer, ParseQuery 类的文档和示例

Some useful links: doc with example, answer, Doc for class ParseQuery with examples

更新

这是官方doc 如何处理这个错误，正如我所评论的，在 Parse.initialize(); 之后尝试使用 ParseUser.enableRevocableSessionInBackground() 根据 SDK 文档，它会更新会话令牌，只有一种情况可能无效 - ParseObject 已删除.希望有所帮助.

This is the official doc how to handle this error, also as I commented try to use ParseUser.enableRevocableSessionInBackground() after Parse.initialize(); According to the SDK Documentation it is gonna update session token and only one case it could be invalid - ParseObject was removed. Hope that helps.

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