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我有表任务: enter image description hereBackendless中“内部客户端异常”的原因是什么?
我想在这个表中的记录。但有一个BackendlessException { code: 'Internal client exception', message: 'null' }
这里是我的代码:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_task);
Backendless.initApp(getApplicationContext() ,APP_ID, SECRET_KEY, VERSION);
BackendlessCollection<Task> tasks = Backendless.Data.of(Task.class).find();
System.out.println("Size " + tasks.getCurrentPage().size());
Iterator<Task> iterator = tasks.getCurrentPage().iterator();
while (iterator.hasNext())
{
Task t = iterator.next();
System.out.println("Question = " + t.getQuestion());
System.out.println("Answer = " + t.getAnswer());
}
}
Task.class:
public class Task {
public String Question ;
public String Answer ;
public String ownerId ;
public String objectId ;
public Date created ;
public Date updated ;
public Task()
{
}
public Task(String Question ,String Answer)
{
this.Question = Question ;
this.Answer = Answer ;
}
}
我学到Backendless文档此查询。这个错误的原因是什么?如何避免这个错误?在从Backedless检索数据之前是否有一些规则要知道?