从Android的HTTP请求读取结果 [英] Reading Result from HTTP Request in Android
问题描述
我需要阅读连接到一个在线的PHP脚本后检索的响应消息。该脚本返回如下:
{成功:1,innerResult:[{用户名:拉法特,密码:123}]}
我只需要阅读这条消息的成功价值。我尝试HTTP请求:
私有类GetPersonDetails扩展的AsyncTask<字符串,字符串,字符串> {
//活动的行为;
上下文mContext; ProgressDialog progressDialog; @覆盖
/ *
在preExecute公共无效(){ progressDialog =新ProgressDialog(mContext);
progressDialog.setMessage(登录...);
progressDialog.show();
}
* / 保护字符串doInBackground(字符串... PARAMS){
//从后台线程更新界面 //检查成功标记 尝试{
成功= 3;
清单<&的NameValuePair GT; paramss =新的ArrayList<&的NameValuePair GT;();
成功= 4;
paramss.add(新BasicNameValuePair(用户名,n.getText()的toString()));
paramss.add(新BasicNameValuePair(密码,p.getText()的toString()));
成功= 5;
JSONObject的JSON = jsonParser.makeHtt prequest(akmiengineering.com/insurance-app/search_username.php,GET,paramss);
成功= 6; // JSON的成功标签
成功= json.getInt(成功);
Toast.makeText(getApplicationContext(),成功是+成功,Toast.LENGTH_LONG).show(); 如果(成功== 1){
// onPostExecute();
....... }其他{.......
}
}赶上(例外五){
// Toast.makeText(getApplicationContext(),错误,Toast.LENGTH_LONG).show();
e.printStackTrace();
} 返回null;
}
在code止于此:
JSONObject的JSON = jsonParser.makeHtt prequest(akmiengineering.com/insurance-app/search_username.php,GET,paramss);
和成功值为5。我无法检测到什么导致了问题,所以我尝试使用URL连接,而不是:
URL网址;
HttpURLConnection类的URLConnection = NULL;
尝试{
URL =新的URL(http://akmiengineering.com/insurance-app/search_username.php?username=adla&password=123); URLConnection的=(HttpURLConnection类)url.openConnection(); 在的InputStream = urlConnection.getInputStream(); InputStreamReader的ISW =新的InputStreamReader(中); int数据= isw.read();
而(数据!= -1){
烧焦电流=(char)的数据;
数据= isw.read();
System.out.print(电流);
}
}赶上(例外五){
e.printStackTrace();
} {最后
尝试{
urlConnection.disconnect();
}赶上(例外五){
e.printStackTrace(); //如果你想在失败的进一步信息...
}
也是我的code是停在这儿:
中的InputStream = urlConnection.getInputStream();
我不知道它是什么,我做错了。请帮我。
更新:
这是logcat的:
14 07 - 09:03:58.221 9554-9610 / system_process E / InputDispatcher:运动事件具有无效的指针数0;值必须在1和16之间。
07-09 14:03:58.321 9554-9610 / system_process E / InputDispatcher:运动事件具有无效的指针数0;值必须在1和16之间。
07-09 14:03:58.321 598-1749 /? D / audio_hw_primary:找到了的/ dev / SND / pcmC0D0p
07-09 14:03:58.381 598-1749 /? W / audio_hw_primary:out_write()限制睡眠时间为102539 46439
07-09 14:03:58.451 598-1749 /? W / audio_hw_primary:out_write()限制睡眠时间65759至46439
07-09 14:04:03.831 9750-10534 / com.bluestacks.bstfolder D / dalvikvm:GC_FOR_ALLOC释放711K,25%的自由2688K / 3576K,暂停0毫秒,共0毫秒
07-09 14:04:09.951 9783-9911 / com.bluestacks.gamepophome D / [的InMobi] - [分析] -4.5.3:NetworkManager-> handleMessag:消息:{=时候什么-40ms = 1001 TARGET =机器人.os.Handler}
07-09 14:04:18.291 591-1700 /? D / MDnsDS:MDnsSdListener ::监视调查超时
07-09 14:04:18.291 591-1700 /? D / MDnsDS:要与pollCount 1轮询
07-09 14:04:19.581 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:android.os.NetworkOnMainThreadException
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.os.StrictMode $ AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.net.InetAddress.lookupHostByName(InetAddress.java:385)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.net.InetAddress.getAllByName(InetAddress.java:214)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.Dns $ 1.getAllByName(Dns.java:28)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:216)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:122)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:292)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.example.adla.insurancemobileapplication.MainActivity.yalaconnect(MainActivity.java:187)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.lang.reflect.Method.invokeNative(本机方法)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.lang.reflect.Method.invoke(Method.java:515)
07-09 14:04:19.591 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.view.View $ 1.onClick(View.java:3823)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.view.View.performClick(View.java:4443)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.view.View $ PerformClick.run(View.java:18433)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.os.Handler.handleCallback(Handler.java:733)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.os.Handler.dispatchMessage(Handler.java:95)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.os.Looper.loop(Looper.java:136)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在android.app.ActivityThread.main(ActivityThread.java:5021)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.lang.reflect.Method.invokeNative(本机方法)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在java.lang.reflect.Method.invoke(Method.java:515)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:827)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication W / System.err的:在dalvik.system.NativeStart.main(本机方法)
07-09 14:04:19.601 12243-12243 / com.example.adla.insurancemobileapplication I /编舞:跳过1275帧!该应用程序可能会做它的主线程的工作太多了。
07-09 14:04:58.951 9750-10534 / com.bluestacks.bstfolder D / dalvikvm:GC_FOR_ALLOC释放729K,25%的自由2687K / 3576K,暂停0毫秒,共0毫秒
尝试创建一个新的项目只是为了测试你的code的URL连接,因为我测试了code和其工作正常。
I need to read the response message retrieved after connecting to an online PHP script. This script returns the following:
{"success":1,"innerResult":[{"username":"raafat","password":"123"}]}
I just need to read the success value from this message. I tried HTTP Request:
private class GetPersonDetails extends AsyncTask<String, String, String> {
//Activity act;
Context mContext;
ProgressDialog progressDialog;
@Override
/*
public void onPreExecute() {
progressDialog = new ProgressDialog(mContext);
progressDialog.setMessage("Signing in...");
progressDialog.show();
}
*/
protected String doInBackground(String... params) {
// updating UI from Background Thread
// Check for success tag
try {
success = 3;
List<NameValuePair> paramss = new ArrayList<NameValuePair>();
success = 4;
paramss.add(new BasicNameValuePair("username",n.getText().toString()));
paramss.add(new BasicNameValuePair("password",p.getText().toString()));
success = 5;
JSONObject json = jsonParser.makeHttpRequest("akmiengineering.com/insurance-app/search_username.php", "GET", paramss);
success = 6;
// json success tag
success = json.getInt("success");
Toast.makeText(getApplicationContext(),"success is" + success, Toast.LENGTH_LONG).show();
if (success == 1) {
// onPostExecute();
.......
} else {
.......
}
} catch (Exception e) {
// Toast.makeText(getApplicationContext(), "error", Toast.LENGTH_LONG).show();
e.printStackTrace();
}
return null;
}
The code stops here:
JSONObject json = jsonParser.makeHttpRequest("akmiengineering.com/insurance-app/search_username.php", "GET", paramss);
and the success value is 5. I couldn't detect what's causing the problem, so I tried using URL Connection instead:
URL url;
HttpURLConnection urlConnection = null;
try {
url = new URL("http://akmiengineering.com/insurance-app/search_username.php?username=adla&password=123");
urlConnection = (HttpURLConnection) url.openConnection();
InputStream in = urlConnection.getInputStream();
InputStreamReader isw = new InputStreamReader(in);
int data = isw.read();
while (data != -1) {
char current = (char) data;
data = isw.read();
System.out.print(current);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
urlConnection.disconnect();
} catch (Exception e) {
e.printStackTrace(); //If you want further info on failure...
}
But also my code is stopping here:
InputStream in = urlConnection.getInputStream();
I don't know what is it that I'm doing wrong. Please help me.
UPDATE:
This is the logcat:
07-09 14:03:58.221 9554-9610/system_process E/InputDispatcher﹕ Motion event has invalid pointer count 0; value must be between 1 and 16.
07-09 14:03:58.321 9554-9610/system_process E/InputDispatcher﹕ Motion event has invalid pointer count 0; value must be between 1 and 16.
07-09 14:03:58.321 598-1749/? D/audio_hw_primary﹕ found out /dev/snd/pcmC0D0p
07-09 14:03:58.381 598-1749/? W/audio_hw_primary﹕ out_write() limiting sleep time 102539 to 46439
07-09 14:03:58.451 598-1749/? W/audio_hw_primary﹕ out_write() limiting sleep time 65759 to 46439
07-09 14:04:03.831 9750-10534/com.bluestacks.bstfolder D/dalvikvm﹕ GC_FOR_ALLOC freed 711K, 25% free 2688K/3576K, paused 0ms, total 0ms
07-09 14:04:09.951 9783-9911/com.bluestacks.gamepophome D/[InMobi]-[Analytics]-4.5.3﹕ NetworkManager->handleMessag: msg:{ when=-40ms what=1001 target=android.os.Handler }
07-09 14:04:18.291 591-1700/? D/MDnsDS﹕ MDnsSdListener::Monitor poll timed out
07-09 14:04:18.291 591-1700/? D/MDnsDS﹕ Going to poll with pollCount 1
07-09 14:04:19.581 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ android.os.NetworkOnMainThreadException
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.net.InetAddress.getAllByName(InetAddress.java:214)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.Dns$1.getAllByName(Dns.java:28)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:216)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:122)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:292)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.example.adla.insurancemobileapplication.MainActivity.yalaconnect(MainActivity.java:187)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.lang.reflect.Method.invokeNative(Native Method)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:515)
07-09 14:04:19.591 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.view.View$1.onClick(View.java:3823)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.view.View.performClick(View.java:4443)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.view.View$PerformClick.run(View.java:18433)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.os.Handler.handleCallback(Handler.java:733)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.os.Handler.dispatchMessage(Handler.java:95)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.os.Looper.loop(Looper.java:136)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at android.app.ActivityThread.main(ActivityThread.java:5021)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.lang.reflect.Method.invokeNative(Native Method)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:515)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication W/System.err﹕ at dalvik.system.NativeStart.main(Native Method)
07-09 14:04:19.601 12243-12243/com.example.adla.insurancemobileapplication I/Choreographer﹕ Skipped 1275 frames! The application may be doing too much work on its main thread.
07-09 14:04:58.951 9750-10534/com.bluestacks.bstfolder D/dalvikvm﹕ GC_FOR_ALLOC freed 729K, 25% free 2687K/3576K, paused 0ms, total 0ms
Try creating a new project just to test your code for url connection, because I tested your code and it is working.
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