异常堆栈跟踪:了java.lang.RuntimeException:执行doInBackground发生错误()
java.lang.RuntimeException: An error occured while executing doInBackground() E/AndroidRuntime( 695): at android.os.AsyncTask$3.done(AsyncTask.java:200) E/AndroidRuntime( 695): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) E/AndroidRuntime( 695): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) E/AndroidRuntime( 695): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) E/AndroidRuntime( 695): at java.util.concurrent.FutureTask.run(FutureTask.java:137) E/AndroidRuntime( 695): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) E/AndroidRuntime( 695): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) E/AndroidRuntime( 695): at java.lang.Thread.run(Thread.java:1096) E/AndroidRuntime( 695): Caused by: java.lang.NoClassDefFoundError: com.google.gson.Gson E/AndroidRuntime( 695): at com.amphisoft.mebox.LoginActivity$LoginTask.doInBackground(LoginActivity.java:167) E/AndroidRuntime( 695): at com.amphisoft.mebox.LoginActivity$LoginTask.doInBackground(LoginActivity.java:1) E/AndroidRuntime( 695): at android.os.AsyncTask$2.call(AsyncTask.java:185) E/AndroidRuntime( 695): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) E/AndroidRuntime( 695): ... 4 more
这是我的代码:
protected User doInBackground(User... user) {
HttpClient httpClient = new DefaultHttpClient();
try {
HashMap<String, String> parameters = new HashMap<String, String>();
parameters.put("username", user[0].username);
parameters.put("password", user[0].password);
String response = HTTPUtil.post("/user/login.json", parameters,
null);
System.out.println("Response:" + response);
Gson gson = new Gson();
User userObj = gson.fromJson(response, User.class);
Store.getInstance().user = userObj;
}
我尝试添加GSON-2.1jar在多次图书馆..但获得相同的错误,因为类定义没有找到..请帮助我。在此先感谢..
下次如果您发布了_full_日志和代码,那将会很棒。 – 2012-07-07 08:47:27
@ user942821:感谢您的评论,我将确保从下次开始,我将把日志和代码妥善保存。 – Nishit 2012-08-07 08:10:55