这是我的Login.java
public class Login extends ActionBarActivity implements OnClickListener {
private Button login, register;
private EditText email, password;
JSONArray loginposition = null;
// Progress Dialog
private ProgressDialog pDialog;
// JSON parser class
JSONParser jsonParser = new JSONParser();
private static final String LOGIN_URL = "http://XXX.XXX.X.XX:1234/PMSS/login.php";
// JSON element ids from repsonse of php script:
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
private static final String TAG_POSTS = "posts";
private static final String TAG_EMAIL = "email";
private static final String TAG_POSITION = "position";
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
login = (Button) findViewById(R.id.login);
register = (Button) findViewById(R.id.registerlauncher);
email = (EditText) findViewById(R.id.useridlogin);
password = (EditText) findViewById(R.id.passwordlogin);
login.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String Username = email.getText().toString();
String Password = password.getText().toString();
new AttemptLogin(Username, Password).execute();
}
});
register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(Login.this, Register.class);
startActivity(intent);
}
});
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
// For the main activity, make sure the app icon in the action bar
// does not behave as a button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.login, menu);
return true;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
/*
* case R.id.login: new AttemptLogin().execute(); break; case
* R.id.register: Intent i = new Intent(Login.this, Register.class);
* startActivity(i); break;
*/
default:
break;
}
}
class AttemptLogin extends AsyncTask<String, String, Integer> {
private final String TAG = null;
boolean failure = false;
String res;
String Username, Password,Email,Position;
String CompareUser = "user", CompareStaff = "staff";
int success;
public AttemptLogin(String Username, String Password) {
this.Username = Username;
this.Password = Password;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Login.this);
pDialog.setMessage("Attempting login...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
protected Integer doInBackground(String... args) {
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", Username));
params.add(new BasicNameValuePair("password", Password));
Log.d("request!", "starting");
// getting product details by making HTTP request
JSONObject json = jsonParser.makeHttpRequest(LOGIN_URL, "POST",
params);
// check your log for json response
Log.d("Login attempt", json.toString());
// json success tag
success = json.getInt(TAG_SUCCESS);
res = json.getString(TAG_MESSAGE);
if(success == 1){
loginposition = json.getJSONArray(TAG_POSTS);
// // looping through all posts according to the json object
// // returned
for (int i = 0; i < loginposition.length(); i++) {
// String jsonText = loginposition.getString(i);
JSONObject c = loginposition.getJSONObject(i);
// gets the content of each tag
// String content = c.getString(TAG_USERID);
Email = c.getString(TAG_EMAIL);
Position = c.getString(TAG_POSITION);
}
}
} catch (JSONException e) {
Log.e(TAG, "JSON error", e);
success = Integer.valueOf(0);
}
return success;
}
protected void onPostExecute(Integer success) {
// dismiss the dialog once product deleted
pDialog.dismiss();
if (success != null && success == 1) {
Log.d("Login Successful!", "res: " + res);
// save user data
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(Login.this);
Editor edit = sp.edit();
edit.putString("email", Email);
edit.putString("position", Position);
edit.commit();
if (Position.equals(CompareUser)) {
Intent usermenu = new Intent(Login.this, MainMenu.class);
startActivity(usermenu);
}
else if (Position.equals(CompareStaff)) {
Intent staffmenu = new Intent(Login.this,
StaffMainMenu.class);
startActivity(staffmenu);
}
Toast.makeText(
Login.this,
res == null ? "Please enter both user id and password (success)"
: res, Toast.LENGTH_LONG).show();
email.setText(null);
password.setText(null);
} else {
Log.d("Login Failure!", "res: " + res);
Toast.makeText(
Login.this,
res == null ? "Please enter both user id and password (failed)"
: res, Toast.LENGTH_LONG).show();
}
}
}
}
这是我的logcat
12-17 17:39:15.289: W/System.err(2643): java.net.SocketException: No route to host
12-17 17:39:15.289: W/System.err(2643): at org.apache.harmony.luni.platform.OSNetworkSystem.connect(Native Method)
12-17 17:39:15.289: W/System.err(2643): at dalvik.system.BlockGuard$WrappedNetworkSystem.connect(BlockGuard.java:357)
12-17 17:39:15.289: W/System.err(2643): at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:204)
12-17 17:39:15.289: W/System.err(2643): at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:437)
12-17 17:39:15.299: W/System.err(2643): at java.net.Socket.connect(Socket.java:1002)
12-17 17:39:15.299: W/System.err(2643): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
12-17 17:39:15.299: W/System.err(2643): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143)
12-17 17:39:15.309: W/System.err(2643): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
12-17 17:39:15.309: W/System.err(2643): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
12-17 17:39:15.319: W/System.err(2643): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:359)
12-17 17:39:15.319: W/System.err(2643): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
12-17 17:39:15.319: W/System.err(2643): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
12-17 17:39:15.319: W/System.err(2643): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
12-17 17:39:15.319: W/System.err(2643): at com.pmss.JSONParser.makeHttpRequest(JSONParser.java:110)
12-17 17:39:15.319: W/System.err(2643): at com.pmss.Login$AttemptLogin.doInBackground(Login.java:164)
12-17 17:39:15.319: W/System.err(2643): at com.pmss.Login$AttemptLogin.doInBackground(Login.java:1)
12-17 17:39:15.319: W/System.err(2643): at android.os.AsyncTask$2.call(AsyncTask.java:185)
12-17 17:39:15.319: W/System.err(2643): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
12-17 17:39:15.319: W/System.err(2643): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
12-17 17:39:15.329: W/System.err(2643): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
12-17 17:39:15.329: W/System.err(2643): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
12-17 17:39:15.329: W/System.err(2643): at java.lang.Thread.run(Thread.java:1019)
12-17 17:39:15.329: E/Buffer Error(2643): Error converting result java.lang.NullPointerException
12-17 17:39:15.329: E/JSON Parser(2643): Error parsing data org.json.JSONException: End of input at character 0 of
12-17 17:39:15.339: W/dalvikvm(2643): threadid=9: thread exiting with uncaught exception (group=0x40018578)
12-17 17:39:15.339: E/AndroidRuntime(2643): FATAL EXCEPTION: AsyncTask #1
12-17 17:39:15.339: E/AndroidRuntime(2643): java.lang.RuntimeException: An error occured while executing doInBackground()
12-17 17:39:15.339: E/AndroidRuntime(2643): at android.os.AsyncTask$3.done(AsyncTask.java:200)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.FutureTask.setException(FutureTask.java:125)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.lang.Thread.run(Thread.java:1019)
12-17 17:39:15.339: E/AndroidRuntime(2643): Caused by: java.lang.NullPointerException
12-17 17:39:15.339: E/AndroidRuntime(2643): at com.pmss.Login$AttemptLogin.doInBackground(Login.java:167)
12-17 17:39:15.339: E/AndroidRuntime(2643): at com.pmss.Login$AttemptLogin.doInBackground(Login.java:1)
12-17 17:39:15.339: E/AndroidRuntime(2643): at android.os.AsyncTask$2.call(AsyncTask.java:185)
12-17 17:39:15.339: E/AndroidRuntime(2643): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
12-17 17:39:15.339: E/AndroidRuntime(2643): ... 4 more
12-17 17:39:21.429: E/WindowManager(2643): Activity com.pmss.Login has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@4055e320 that was originally added here
12-17 17:39:21.429: E/WindowManager(2643): android.view.WindowLeaked: Activity com.pmss.Login has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@4055e320 that was originally added here
12-17 17:39:21.429: E/WindowManager(2643): at android.view.ViewRoot.<init>(ViewRoot.java:263)
12-17 17:39:21.429: E/WindowManager(2643): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
12-17 17:39:21.429: E/WindowManager(2643): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
12-17 17:39:21.429: E/WindowManager(2643): at android.view.Window$LocalWindowManager.addView(Window.java:424)
12-17 17:39:21.429: E/WindowManager(2643): at android.app.Dialog.show(Dialog.java:241)
12-17 17:39:21.429: E/WindowManager(2643): at com.pmss.Login$AttemptLogin.onPreExecute(Login.java:150)
12-17 17:39:21.429: E/WindowManager(2643): at android.os.AsyncTask.execute(AsyncTask.java:391)
12-17 17:39:21.429: E/WindowManager(2643): at com.pmss.Login$1.onClick(Login.java:78)
12-17 17:39:21.429: E/WindowManager(2643): at android.view.View.performClick(View.java:2485)
12-17 17:39:21.429: E/WindowManager(2643): at android.view.View$PerformClick.run(View.java:9080)
12-17 17:39:21.429: E/WindowManager(2643): at android.os.Handler.handleCallback(Handler.java:587)
12-17 17:39:21.429: E/WindowManager(2643): at android.os.Handler.dispatchMessage(Handler.java:92)
12-17 17:39:21.429: E/WindowManager(2643): at android.os.Looper.loop(Looper.java:130)
12-17 17:39:21.429: E/WindowManager(2643): at android.app.ActivityThread.main(ActivityThread.java:3687)
12-17 17:39:21.429: E/WindowManager(2643): at java.lang.reflect.Method.invokeNative(Native Method)
12-17 17:39:21.429: E/WindowManager(2643): at java.lang.reflect.Method.invoke(Method.java:507)
12-17 17:39:21.429: E/WindowManager(2643): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
12-17 17:39:21.429: E/WindowManager(2643): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
12-17 17:39:21.429: E/WindowManager(2643): at dalvik.system.NativeStart.main(Native Method)
在logcat中它说No Route to host这意味着什么？我尝试在我的浏览器中打开URL，Everythings工作正常，只是当我的android应用程序尝试连接它时，它强制关闭我的应用程序。
答案 0 :(得分：1)
这里的解释：
您的192.168.1.10地址是路由器为您的PC分配的（动态）DHCP地址。因此，模拟器可以看到它。
But depending on how your WiFi is set up, the Android is probably on a different router / subnet and can't see 192.168.1.10. You could check that by typing 192.168.1.10 into the address bar of the Android browser.
If 192.168.1.10 is not visible to your Android, then you will have to either change the routing rules on your router to make it visible, or add a DNS lookup for it.
由于