从Android的HTTP请求读取结果结果、Android、HTTP

2023-09-06 14:23:26 作者：屹立在这世上

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＆LT;字符串，字符串，字符串＆GT; {        //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＆LT;＆的NameValuePair GT; paramss =新的ArrayList＆LT;＆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 / pcmC0D0p07-09 14：03：58.381 598-1749 /？ W / audio_hw_primary：out_write（）限制睡眠时间为102539 4643907-09 14：03：58.451 598-1749 /？ W / audio_hw_primary：out_write（）限制睡眠时间65759至4643907-09 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-＆GT; 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.NetworkOnMainThreadException07-09 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

解决方案

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

解决方案

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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