从Android应用程序向服务器发送数据时连接被拒绝[重复]
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【中文标题】从Android应用程序向服务器发送数据时连接被拒绝[重复]【英文标题】：Connection being refused while sending data from Android app to server [duplicate] 【发布时间】：2015-03-25 02:33:38 【问题描述】：我是 android 应用程序开发的新手，我想发送三个参数 Latitude ， 经度和比马里（我在 我下面的代码）通过互联网到 phpMyAdmin 服务器。 问题是从选择 bimari 后 当我单击发送按钮时微调器我的应用程序崩溃。 我的服务器端工作正常。任何人都可以 请告诉我为什么我不能将我的数据发送到服务器？
非常感谢阅读！
MainActivity.java如下：-
public final static String EXTRA_MESSAGE = "com.example.sushma.myfirstapp.MESSAGE";
String nn, nn1, nn2, nn3, nn4, nn5, nnf; // used to make URL
String sss1, sss2; // used to convert lat and long to string
String s; // used to save bimari as string
double lat, lng;
LocationManager lm;
String provider;
Location l;
private View view;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lm = (LocationManager)this.getSystemService(Context.LOCATION_SERVICE);
Criteria c = new Criteria();
provider = lm.getBestProvider(c, false);
l = lm.getLastKnownLocation(provider);
if (l != null)
//get latitude and longitude of the location
lng = l.getLongitude();
lat = l.getLatitude();
else
System.out.println("No lat/long");
LinearLayout l1 = new LinearLayout(this);
l1.setBackgroundResource(R.drawable.ambulance);
setContentView(R.layout.activity_main);
public void ongobuttonclick(View view)
this.view = view;
Spinner sp = (Spinner) findViewById(R.id.problems);
s = sp.getSelectedItem().toString();
sss1 = String.valueOf(lng);
sss2 = String.valueOf(lat);
nn = "http://192.168.2.8/tech/new_predict.php?Latitude=";
nn1 = sss2;
nn2 = "&Longitude=";
nn3 = sss1;
nn4 = "&Bimari=";
nn5 = s;
nnf = nn + nn1 + nn2 + nn3 + nn4 + nn5;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httPost = new HttpPost(nnf);
System.out.println(nnf);
new Thread(new Runnable()
@Override
public void run()
try
httpclient.execute(httPost);
catch (IOException e)
e.printStackTrace();
).start();
@Override
public boolean onCreateOptionsMenu(Menu menu)
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
@Override
public boolean onOptionsItemSelected(MenuItem item)
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings)
return true;
return super.onOptionsItemSelected(item);
日志猫
01-26 19:32:22.859 14247-14247/com.example.sushma.myfirstapp E/ViewRootImpl﹕ sendUserActionEvent() mView == null
01-26 19:32:29.085 14247-14247/com.example.sushma.myfirstapp D/AndroidRuntime﹕ Shutting down VM
01-26 19:32:29.085 14247-14247/com.example.sushma.myfirstapp W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x40da9930)
01-26 19:32:29.105 14247-14247/com.example.sushma.myfirstapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3804)
at android.view.View.performClick(View.java:4439)
at android.widget.Button.performClick(Button.java:139)
at android.view.View$PerformClick.run(View.java:18395)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5317)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.view.View$1.onClick(View.java:3799)
at android.view.View.performClick(View.java:4439)
at android.widget.Button.performClick(Button.java:139)
at android.view.View$PerformClick.run(View.java:18395)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5317)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1128)
at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
at libcore.io.IoBridge.connect(IoBridge.java:112)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
at java.net.Socket.connect(Socket.java:842)
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
at com.example.sushma.myfirstapp.MainActivity.ongobuttonclick(MainActivity.java:176)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.view.View$1.onClick(View.java:3799)
at android.view.View.performClick(View.java:4439)
at android.widget.Button.performClick(Button.java:139)
at android.view.View$PerformClick.run(View.java:18395)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5317)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
新Logcat
01-26 22:45:48.807 23318-23318/com.example.sushma.myfirstapp I/dalvikvm﹕ Could not find method android.view.ViewGroup.onNestedScrollAccepted, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onNestedScrollAccepted
01-26 22:45:48.807 23318-23318/com.example.sushma.myfirstapp W/dalvikvm﹕ VFY: unable to resolve virtual method 11750: Landroid/view/ViewGroup;.onNestedScrollAccepted (Landroid/view/View;Landroid/view/View;I)V
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0000
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp I/dalvikvm﹕ Could not find method android.view.ViewGroup.onStopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onStopNestedScroll
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp W/dalvikvm﹕ VFY: unable to resolve virtual method 11756: Landroid/view/ViewGroup;.onStopNestedScroll (Landroid/view/View;)V
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp D/dalvikvm﹕ VFY: replacing opcode 0x6f at 0x0000
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp I/dalvikvm﹕ Could not find method android.support.v7.internal.widget.ActionBarOverlayLayout.stopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.setHideOnContentScrollEnabled
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp W/dalvikvm﹕ VFY: unable to resolve virtual method 9401: Landroid/support/v7/internal/widget/ActionBarOverlayLayout;.stopNestedScroll ()V
01-26 22:45:48.867 23318-23318/com.example.sushma.myfirstapp D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x000e
01-26 22:45:48.887 23318-23318/com.example.sushma.myfirstapp I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
01-26 22:45:48.887 23318-23318/com.example.sushma.myfirstapp W/dalvikvm﹕ VFY: unable to resolve virtual method 534: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
01-26 22:45:48.887 23318-23318/com.example.sushma.myfirstapp D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
01-26 22:45:48.887 23318-23318/com.example.sushma.myfirstapp I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
01-26 22:45:48.887 23318-23318/com.example.sushma.myfirstapp W/dalvikvm﹕ VFY: unable to resolve virtual method 556: Landroid/content/res/TypedArray;.getType (I)I
01-26 22:45:48.887 23318-23318/com.example.sushma.myfirstapp D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
01-26 22:45:48.947 23318-23318/com.example.sushma.myfirstapp D/dalvikvm﹕ GC_FOR_ALLOC freed 157K, 13% free 8676K/9872K, paused 24ms, total 24ms
01-26 22:45:48.957 23318-23318/com.example.sushma.myfirstapp I/dalvikvm-heap﹕ Grow heap (frag case) to 10.654MB for 1228816-byte allocation
01-26 22:45:48.967 23318-23329/com.example.sushma.myfirstapp D/dalvikvm﹕ GC_FOR_ALLOC freed 1K, 11% free 9875K/11076K, paused 14ms, total 14ms
01-26 22:45:49.007 23318-23323/com.example.sushma.myfirstapp E/dalvikvm﹕ adjustAdaptiveCoef max=4194304, min=1048576, ut=568
01-26 22:45:49.007 23318-23323/com.example.sushma.myfirstapp D/dalvikvm﹕ GC_CONCURRENT freed 4K, 11% free 9871K/11076K, paused 16ms+3ms, total 40ms
01-26 22:45:49.257 23318-23318/com.example.sushma.myfirstapp D/libEGL﹕ loaded /system/lib/egl/libGLES_hawaii.so
01-26 22:45:49.267 23318-23318/com.example.sushma.myfirstapp D/﹕ mem_init ++
01-26 22:45:49.267 23318-23318/com.example.sushma.myfirstapp D/﹕ gHwMemAllocator client 3
01-26 22:45:49.267 23318-23318/com.example.sushma.myfirstapp D/﹕ **** Using ION allocator ****
01-26 22:45:49.267 23318-23318/com.example.sushma.myfirstapp D/﹕ registered SIGUSR1[10] for pid[23318]
01-26 22:45:49.267 23318-23318/com.example.sushma.myfirstapp D/﹕ HwMemAllocatorImpl Static Counters 0 0
01-26 22:45:49.267 23318-23318/com.example.sushma.myfirstapp D/﹕ HwMemAllocatorImpl[490a9dcc] totalDeviceAllocSize[0] totalFree[0] maxFree[0] in numSlabs[0]
01-26 22:45:49.277 23318-23318/com.example.sushma.myfirstapp D/﹕ mem_init 490a9dcc--
01-26 22:45:49.277 23318-23318/com.example.sushma.myfirstapp D/ION﹕ config: version(0x10000) secure(0xf000) 256M(0x22d) fast(0x608) hwwr(0x608)
01-26 22:45:49.277 23318-23318/com.example.sushma.myfirstapp D/MM_DEVICE﹕ Waiting for mm thread to come up
01-26 22:45:49.277 23318-23346/com.example.sushma.myfirstapp D/MM_DEVICE﹕ mm_device_thread starting
01-26 22:45:49.277 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglCreateContext() config: 18 context: 0x4f3c4db8, VC context 1, Thread 23318
01-26 22:45:49.277 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ Set SWAP INTERVAL 0
01-26 22:45:49.287 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglCreateWindowSurface() surface: 0x4beeea48, VC surface: 1, Thread: 23318
01-26 22:45:49.287 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4beeea48, 0x4beeea48) Thread: 23318
01-26 22:45:49.287 23318-23318/com.example.sushma.myfirstapp D/OpenGLRenderer﹕ Enabling debug mode 0
01-26 22:45:50.849 23318-23318/com.example.sushma.myfirstapp D/AbsListView﹕ Get MotionRecognitionManager
01-26 22:45:50.959 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ Set SWAP INTERVAL 0
01-26 22:45:50.969 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglCreateWindowSurface() surface: 0x4c0f1be8, VC surface: 2, Thread: 23318
01-26 22:45:50.969 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4c0f1be8, 0x4c0f1be8) Thread: 23318
01-26 22:45:50.989 23318-23318/com.example.sushma.myfirstapp D/AbsListView﹕ unregisterIRListener() is called
01-26 22:45:50.999 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4beeea48, 0x4beeea48) Thread: 23318
01-26 22:45:50.999 23318-23318/com.example.sushma.myfirstapp D/AbsListView﹕ unregisterIRListener() is called
01-26 22:45:50.999 23318-23318/com.example.sushma.myfirstapp D/AbsListView﹕ unregisterIRListener() is called
01-26 22:45:50.999 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4c0f1be8, 0x4c0f1be8) Thread: 23318
01-26 22:45:51.079 23318-23318/com.example.sushma.myfirstapp D/AbsListView﹕ unregisterIRListener() is called
01-26 22:45:51.089 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4beeea48, 0x4beeea48) Thread: 23318
01-26 22:45:52.150 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4c0f1be8, 0x4c0f1be8) Thread: 23318
01-26 22:45:52.791 23318-23318/com.example.sushma.myfirstapp D/AbsListView﹕ onDetachedFromWindow
01-26 22:45:52.791 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(NULL) Thread: 23318
01-26 22:45:52.791 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglDestroySurface() surface: 0x4c0f1be8, android window 0x4c05c8f8, Thread: 23318
01-26 22:45:52.811 23318-23318/com.example.sushma.myfirstapp D/HAWAII_EGL﹕ eglMakeCurrent(0x4f3c4db8, 0x4beeea48, 0x4beeea48) Thread: 23318
01-26 22:45:52.871 23318-23318/com.example.sushma.myfirstapp E/ViewRootImpl﹕ sendUserActionEvent() mView == null
01-26 22:45:53.802 23318-23318/com.example.sushma.myfirstapp I/System.out﹕ http://192.168.2.8/tech/new_predict.php?Latitude=31.310573780338718&Longitude=75.55498407042245&Bimari=Bones
01-26 22:45:56.945 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ org.apache.http.conn.HttpHostConnectException: Connection to http://192.168.2.8 refused
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:183)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at com.example.sushma.myfirstapp.MainActivity$1.run(MainActivity.java:173)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at java.lang.Thread.run(Thread.java:856)
01-26 22:45:56.955 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ Caused by: java.net.ConnectException: failed to connect to /192.168.2.8 (port 80): connect failed: EHOSTUNREACH (No route to host)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at libcore.io.IoBridge.connect(IoBridge.java:114)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at java.net.Socket.connect(Socket.java:842)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ ... 8 more
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ Caused by: libcore.io.ErrnoException: connect failed: EHOSTUNREACH (No route to host)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at libcore.io.Posix.connect(Native Method)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ at libcore.io.IoBridge.connect(IoBridge.java:112)
01-26 22:45:56.965 23318-23498/com.example.sushma.myfirstapp W/System.err﹕ ... 13 more
【问题讨论】：
见：***.com/questions/6343166/… 【参考方案1】：您尝试在 UI 线程中执行 httpclient.execute(httPost); 方法。你不能做这个。
您可以使用AsyncTask 解决此问题。
public void ongobuttonclick(View view)
...
//your code
//use AsyncTask if you want ot inform ui thread
final HttpClient httpclient = new DefaultHttpClient();
final HttpPost httPost = new HttpPost(nnf);
new AsyncTask<HttpPost, Void, HttpResponse>()
//YourParams, YourProgress, YourResult can be Void
@Override
protected HttpResponse doInBackground(HttpPost... params)
HttpResponse response = null;
try
response = httpclient.execute(params[0]);
catch (IOException e)
e.printStackTrace();
return response;
@Override
protected void onPostExecute(HttpResponse response)
if(response != null)
//do sth in UI thread
.execute(httPost);
//or in new thread if you doesn't want ot inform ui thread
new Thread(new Runnable()
@Override
public void run()
try
httpclient.execute(httPost);
catch (IOException e)
e.printStackTrace();
).start();
【讨论】：
好的先生，但如果您能指导我在哪里执行 httpclient.execute(httPost); 我将非常感激.我真的是一个android新手。 等我编辑我的帖子 先生实际上我已经尝试使用异步任务但无法理解 (protected string doInBackground(String... urls)) 字符串作为返回类型，因为我必须在服务器上发布我的变量，我不需要返回任何东西。那么我该如何进一步进行。如果无论如何你可以总结那部分代码并在这里发布，我将非常感谢 还有一个问题不是从网页下载东西的异步任务吗？ 我给你两个解决方案一是如何使用AsyncTask，二是如何使用线程以上是关于从Android应用程序向服务器发送数据时连接被拒绝[重复]的主要内容，如果未能解决你的问题，请参考以下文章
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