admin管理员组

文章数量:1325545

I am very novice in Android Java Programming, so it is hard to figure my problem up. I have simple node.js server, that just listen localhost:7000 and print any input into console (it works fine with my actionscript client). I need to do something simmilar to understand Android, just simple client socket sender, that write anything that i can view in my server log. Here is the code, i trying to use on eclipse Android emulator and if i use "localhost" or "127.0.0.1" it works without errors but nothing happens (server log would be empty), and if i change it to my server local adress (here is wi-fi local network and phone uses it) application just throw en error after big freeze then shutdown. Simmilar problem with phone.

Client-side:

package etc.supachat;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.DatagramPacket;
import java.DatagramSocket;
import java.InetSocketAddress;
import java.Socket;
import java.SocketException;
import java.UnknownHostException;


import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;


public class SupaChatActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);        
        try {

            Socket s = new Socket("192.168.1.34", 7000);



            //outgoing stream redirect to socket

            OutputStream out = s.getOutputStream();



            PrintWriter output = new PrintWriter(out);

            output.println("Hello Android!");

            BufferedReader input = new BufferedReader(new InputStreamReader(s.getInputStream()));



            //read line(s)

            String st = input.readLine();

            //Close connection

            s.close();





    } catch (UnknownHostException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

    } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

    }
    }
}

This is manifest code: 

    <uses-sdk android:minSdkVersion="7" />
    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".SupaChatActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

And this is simple ui: 

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/out_view"
            android:layout_width="162dp"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:text="Large Text"
            android:textAppearance="?android:attr/textAppearanceLarge" />

    </RelativeLayout>

</LinearLayout>

Update Here is eclipse console log:

05-05 18:13:49.172: D/AndroidRuntime(1452): >>>>>> AndroidRuntime START .android.internal.os.RuntimeInit <<<<<<
05-05 18:13:49.172: D/AndroidRuntime(1452): CheckJNI is ON
05-05 18:13:49.921: D/AndroidRuntime(1452): Calling main entry .androidmands.pm.Pm
05-05 18:13:49.950: D/AndroidRuntime(1452): Shutting down VM
05-05 18:13:49.971: D/dalvikvm(1452): GC_CONCURRENT freed 101K, 71% free 297K/1024K, external 0K/0K, paused 7ms+1ms
05-05 18:13:49.971: I/AndroidRuntime(1452): NOTE: attach of thread 'Binder Thread #3' failed
05-05 18:13:49.981: D/dalvikvm(1452): Debugger has detached; object registry had 1 entries
05-05 18:13:50.491: D/AndroidRuntime(1462): >>>>>> AndroidRuntime START .android.internal.os.RuntimeInit <<<<<<
05-05 18:13:50.491: D/AndroidRuntime(1462): CheckJNI is ON
05-05 18:13:51.231: D/AndroidRuntime(1462): Calling main entry .androidmands.am.Am
05-05 18:13:51.271: I/ActivityManager(68): Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=etc.supachat/.SupaChatActivity } from pid 1462
05-05 18:13:51.321: I/ActivityManager(68): Start proc etc.supachat for activity etc.supachat/.SupaChatActivity: pid=1470 uid=10035 gids={3003}
05-05 18:13:51.362: D/AndroidRuntime(1462): Shutting down VM
05-05 18:13:51.371: D/dalvikvm(1462): GC_CONCURRENT freed 102K, 69% free 319K/1024K, external 0K/0K, paused 1ms+1ms
05-05 18:13:51.421: D/dalvikvm(1462): Debugger has detached; object registry had 1 entries
05-05 18:14:01.324: W/ActivityManager(68): Launch timeout has expired, giving up wake lock!
05-05 18:14:02.033: W/ActivityManager(68): Activity idle timeout for HistoryRecord{406a46a8 etc.supachat/.SupaChatActivity}
05-05 18:14:07.151: D/dalvikvm(137): GC_EXPLICIT freed 47K, 52% free 2817K/5831K, external 4863K/5566K, paused 84ms
05-05 18:16:19.360: I/InputDispatcher(68): Application is not responding: AppWindowToken{407b8948 token=HistoryRecord{406a46a8 etc.supachat/.SupaChatActivity}}.  5036.3ms since event, 5035.8ms since wait started
05-05 18:16:19.360: I/WindowManager(68): Input event dispatching timed out sending to application AppWindowToken{407b8948 token=HistoryRecord{406a46a8 etc.supachat/.SupaChatActivity}}
05-05 18:16:19.491: I/Process(68): Sending signal. PID: 1470 SIG: 3
05-05 18:16:19.491: I/dalvikvm(1470): threadid=4: reacting to signal 3
05-05 18:16:19.520: I/dalvikvm(1470): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:19.531: I/Process(68): Sending signal. PID: 68 SIG: 3
05-05 18:16:19.531: I/dalvikvm(68): threadid=4: reacting to signal 3
05-05 18:16:19.580: I/dalvikvm(68): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:19.580: I/Process(68): Sending signal. PID: 125 SIG: 3
05-05 18:16:19.590: I/dalvikvm(125): threadid=4: reacting to signal 3
05-05 18:16:19.610: I/dalvikvm(125): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:19.610: I/Process(68): Sending signal. PID: 128 SIG: 3
05-05 18:16:19.620: I/dalvikvm(128): threadid=4: reacting to signal 3
05-05 18:16:19.630: I/dalvikvm(128): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:20.030: D/dalvikvm(68): GC_EXPLICIT freed 789K, 47% free 4557K/8519K, external 3520K/3903K, paused 112ms
05-05 18:16:20.720: E/ActivityManager(68): ANR in etc.supachat (etc.supachat/.SupaChatActivity)
05-05 18:16:20.720: E/ActivityManager(68): Reason: keyDispatchingTimedOut
05-05 18:16:20.720: E/ActivityManager(68): Load: 0.09 / 0.12 / 0.09
05-05 18:16:20.720: E/ActivityManager(68): CPU usage from 14302ms to 0ms ago:
05-05 18:16:20.720: E/ActivityManager(68):   0.4% 68/system_server: 0.2% user + 0.2% kernel
05-05 18:16:20.720: E/ActivityManager(68):   0.4% 128/.android.systemui: 0.2% user + 0.1% kernel / faults: 1 minor
05-05 18:16:20.720: E/ActivityManager(68):   0.1% 125/.android.phone: 0% user + 0.1% kernel
05-05 18:16:20.720: E/ActivityManager(68):   0% 12/pdflush: 0% user + 0% kernel
05-05 18:16:20.720: E/ActivityManager(68):   0% 332/logcat: 0% user + 0% kernel
05-05 18:16:20.720: E/ActivityManager(68): 1.6% TOTAL: 0.9% user + 0.6% kernel
05-05 18:16:20.720: E/ActivityManager(68): CPU usage from 678ms to 1270ms later:
05-05 18:16:20.720: E/ActivityManager(68):   8.3% 68/system_server: 3.3% user + 5% kernel
05-05 18:16:20.720: E/ActivityManager(68):     8.3% 98/InputDispatcher: 6.6% user + 1.6% kernel
05-05 18:16:20.720: E/ActivityManager(68): 13% TOTAL: 6.6% user + 6.6% kernel
05-05 18:16:20.750: I/InputDispatcher(68): Dropping event because the pointer is not down.
05-05 18:16:23.530: W/ActivityManager(68):   Force finishing activity etc.supachat/.SupaChatActivity
05-05 18:16:23.550: I/ActivityManager(68): Killing etc.supachat (pid=1470): user's request
05-05 18:16:23.550: I/Process(68): Sending signal. PID: 1470 SIG: 9
05-05 18:16:23.570: I/ActivityManager(68): Process etc.supachat (pid 1470) has died.
05-05 18:16:23.770: W/InputManagerService(68): Window already focused, ignoring focus gain of: .android.internal.view.IInputMethodClient$Stub$Proxy@406c8c68

Update 2. Here is the server-side script, that works with actionscript-client (it is something like chat, that i write to understand new language and platform):

var net = require("net"), sys = require('util');

var names = Array();
var streams = Array();

var policy = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
"<!DOCTYPE cross-domain-policy SYSTEM \".dtd\">" +
"<cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\" />" +
"</cross-domain-policy>\0";

function onStreamData(data){
    var current_stream = this;
    console.log(data);
    if(data.substring(1,20) == "policy-file-request"){
        console.log("asd");
        current_stream.write(policy);
    }

    else if(data.substring(0,6) == "[name]"){
        console.log("name");
        names.push(data.substring(6, data.length));
        streams.push(current_stream);
    }

    else
    {   
        var na;
        for(i =0; i<names.length; i++){
            if(current_stream == streams[i]){
                na = names[i]
            }
        }

        for(i =0; i<names.length; i++){
            if(streams[i]!=null){
                streams[i].write(na+data+"\0");
            }
        }
    }
}

function onClose(){
        var current_stream = this;
        for(i = 0; i<streams.length; i++){
            if(streams == current_stream){
                streams.splice(i, 1);
                names.splice(i, 1);
            }
        }
        current_stream.end();
}

var server = net.createServer(function (stream) {
    stream.setEncoding("utf8");
    stream.on('data', onStreamData);
    stream.on('end', onClose);
});

server.listen(7000, "127.0.0.1");

I am very novice in Android Java Programming, so it is hard to figure my problem up. I have simple node.js server, that just listen localhost:7000 and print any input into console (it works fine with my actionscript client). I need to do something simmilar to understand Android, just simple client socket sender, that write anything that i can view in my server log. Here is the code, i trying to use on eclipse Android emulator and if i use "localhost" or "127.0.0.1" it works without errors but nothing happens (server log would be empty), and if i change it to my server local adress (here is wi-fi local network and phone uses it) application just throw en error after big freeze then shutdown. Simmilar problem with phone.

Client-side:

package etc.supachat;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.DatagramPacket;
import java.DatagramSocket;
import java.InetSocketAddress;
import java.Socket;
import java.SocketException;
import java.UnknownHostException;


import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;


public class SupaChatActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);        
        try {

            Socket s = new Socket("192.168.1.34", 7000);



            //outgoing stream redirect to socket

            OutputStream out = s.getOutputStream();



            PrintWriter output = new PrintWriter(out);

            output.println("Hello Android!");

            BufferedReader input = new BufferedReader(new InputStreamReader(s.getInputStream()));



            //read line(s)

            String st = input.readLine();

            //Close connection

            s.close();





    } catch (UnknownHostException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

    } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

    }
    }
}

This is manifest code: 

    <uses-sdk android:minSdkVersion="7" />
    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".SupaChatActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

And this is simple ui: 

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/out_view"
            android:layout_width="162dp"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:text="Large Text"
            android:textAppearance="?android:attr/textAppearanceLarge" />

    </RelativeLayout>

</LinearLayout>

Update Here is eclipse console log:

05-05 18:13:49.172: D/AndroidRuntime(1452): >>>>>> AndroidRuntime START .android.internal.os.RuntimeInit <<<<<<
05-05 18:13:49.172: D/AndroidRuntime(1452): CheckJNI is ON
05-05 18:13:49.921: D/AndroidRuntime(1452): Calling main entry .android.mands.pm.Pm
05-05 18:13:49.950: D/AndroidRuntime(1452): Shutting down VM
05-05 18:13:49.971: D/dalvikvm(1452): GC_CONCURRENT freed 101K, 71% free 297K/1024K, external 0K/0K, paused 7ms+1ms
05-05 18:13:49.971: I/AndroidRuntime(1452): NOTE: attach of thread 'Binder Thread #3' failed
05-05 18:13:49.981: D/dalvikvm(1452): Debugger has detached; object registry had 1 entries
05-05 18:13:50.491: D/AndroidRuntime(1462): >>>>>> AndroidRuntime START .android.internal.os.RuntimeInit <<<<<<
05-05 18:13:50.491: D/AndroidRuntime(1462): CheckJNI is ON
05-05 18:13:51.231: D/AndroidRuntime(1462): Calling main entry .android.mands.am.Am
05-05 18:13:51.271: I/ActivityManager(68): Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=etc.supachat/.SupaChatActivity } from pid 1462
05-05 18:13:51.321: I/ActivityManager(68): Start proc etc.supachat for activity etc.supachat/.SupaChatActivity: pid=1470 uid=10035 gids={3003}
05-05 18:13:51.362: D/AndroidRuntime(1462): Shutting down VM
05-05 18:13:51.371: D/dalvikvm(1462): GC_CONCURRENT freed 102K, 69% free 319K/1024K, external 0K/0K, paused 1ms+1ms
05-05 18:13:51.421: D/dalvikvm(1462): Debugger has detached; object registry had 1 entries
05-05 18:14:01.324: W/ActivityManager(68): Launch timeout has expired, giving up wake lock!
05-05 18:14:02.033: W/ActivityManager(68): Activity idle timeout for HistoryRecord{406a46a8 etc.supachat/.SupaChatActivity}
05-05 18:14:07.151: D/dalvikvm(137): GC_EXPLICIT freed 47K, 52% free 2817K/5831K, external 4863K/5566K, paused 84ms
05-05 18:16:19.360: I/InputDispatcher(68): Application is not responding: AppWindowToken{407b8948 token=HistoryRecord{406a46a8 etc.supachat/.SupaChatActivity}}.  5036.3ms since event, 5035.8ms since wait started
05-05 18:16:19.360: I/WindowManager(68): Input event dispatching timed out sending to application AppWindowToken{407b8948 token=HistoryRecord{406a46a8 etc.supachat/.SupaChatActivity}}
05-05 18:16:19.491: I/Process(68): Sending signal. PID: 1470 SIG: 3
05-05 18:16:19.491: I/dalvikvm(1470): threadid=4: reacting to signal 3
05-05 18:16:19.520: I/dalvikvm(1470): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:19.531: I/Process(68): Sending signal. PID: 68 SIG: 3
05-05 18:16:19.531: I/dalvikvm(68): threadid=4: reacting to signal 3
05-05 18:16:19.580: I/dalvikvm(68): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:19.580: I/Process(68): Sending signal. PID: 125 SIG: 3
05-05 18:16:19.590: I/dalvikvm(125): threadid=4: reacting to signal 3
05-05 18:16:19.610: I/dalvikvm(125): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:19.610: I/Process(68): Sending signal. PID: 128 SIG: 3
05-05 18:16:19.620: I/dalvikvm(128): threadid=4: reacting to signal 3
05-05 18:16:19.630: I/dalvikvm(128): Wrote stack traces to '/data/anr/traces.txt'
05-05 18:16:20.030: D/dalvikvm(68): GC_EXPLICIT freed 789K, 47% free 4557K/8519K, external 3520K/3903K, paused 112ms
05-05 18:16:20.720: E/ActivityManager(68): ANR in etc.supachat (etc.supachat/.SupaChatActivity)
05-05 18:16:20.720: E/ActivityManager(68): Reason: keyDispatchingTimedOut
05-05 18:16:20.720: E/ActivityManager(68): Load: 0.09 / 0.12 / 0.09
05-05 18:16:20.720: E/ActivityManager(68): CPU usage from 14302ms to 0ms ago:
05-05 18:16:20.720: E/ActivityManager(68):   0.4% 68/system_server: 0.2% user + 0.2% kernel
05-05 18:16:20.720: E/ActivityManager(68):   0.4% 128/.android.systemui: 0.2% user + 0.1% kernel / faults: 1 minor
05-05 18:16:20.720: E/ActivityManager(68):   0.1% 125/.android.phone: 0% user + 0.1% kernel
05-05 18:16:20.720: E/ActivityManager(68):   0% 12/pdflush: 0% user + 0% kernel
05-05 18:16:20.720: E/ActivityManager(68):   0% 332/logcat: 0% user + 0% kernel
05-05 18:16:20.720: E/ActivityManager(68): 1.6% TOTAL: 0.9% user + 0.6% kernel
05-05 18:16:20.720: E/ActivityManager(68): CPU usage from 678ms to 1270ms later:
05-05 18:16:20.720: E/ActivityManager(68):   8.3% 68/system_server: 3.3% user + 5% kernel
05-05 18:16:20.720: E/ActivityManager(68):     8.3% 98/InputDispatcher: 6.6% user + 1.6% kernel
05-05 18:16:20.720: E/ActivityManager(68): 13% TOTAL: 6.6% user + 6.6% kernel
05-05 18:16:20.750: I/InputDispatcher(68): Dropping event because the pointer is not down.
05-05 18:16:23.530: W/ActivityManager(68):   Force finishing activity etc.supachat/.SupaChatActivity
05-05 18:16:23.550: I/ActivityManager(68): Killing etc.supachat (pid=1470): user's request
05-05 18:16:23.550: I/Process(68): Sending signal. PID: 1470 SIG: 9
05-05 18:16:23.570: I/ActivityManager(68): Process etc.supachat (pid 1470) has died.
05-05 18:16:23.770: W/InputManagerService(68): Window already focused, ignoring focus gain of: .android.internal.view.IInputMethodClient$Stub$Proxy@406c8c68

Update 2. Here is the server-side script, that works with actionscript-client (it is something like chat, that i write to understand new language and platform):

var net = require("net"), sys = require('util');

var names = Array();
var streams = Array();

var policy = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
"<!DOCTYPE cross-domain-policy SYSTEM \"http://www.adobe./xml/dtds/cross-domain-policy.dtd\">" +
"<cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\" />" +
"</cross-domain-policy>\0";

function onStreamData(data){
    var current_stream = this;
    console.log(data);
    if(data.substring(1,20) == "policy-file-request"){
        console.log("asd");
        current_stream.write(policy);
    }

    else if(data.substring(0,6) == "[name]"){
        console.log("name");
        names.push(data.substring(6, data.length));
        streams.push(current_stream);
    }

    else
    {   
        var na;
        for(i =0; i<names.length; i++){
            if(current_stream == streams[i]){
                na = names[i]
            }
        }

        for(i =0; i<names.length; i++){
            if(streams[i]!=null){
                streams[i].write(na+data+"\0");
            }
        }
    }
}

function onClose(){
        var current_stream = this;
        for(i = 0; i<streams.length; i++){
            if(streams == current_stream){
                streams.splice(i, 1);
                names.splice(i, 1);
            }
        }
        current_stream.end();
}

var server = net.createServer(function (stream) {
    stream.setEncoding("utf8");
    stream.on('data', onStreamData);
    stream.on('end', onClose);
});

server.listen(7000, "127.0.0.1");
  • java
  • javascript
  • android
  • sockets
  • node.js
Share Improve this question edited May 6, 2012 at 11:37 user1324420 asked May 5, 2012 at 17:57 user1324420user1324420 1362 gold badges2 silver badges7 bronze badges 2
  • Please post the error(s) and context (were you using localhost, network, emulator, device?). – Jack Commented May 5, 2012 at 18:04
  • I add some eclipse log errors. Application just freeze for much time then shutdown with "Sorry! Application didn't answer". I use my local PC as node.js server that simple listen 7000 port and log anything in console on ining data. As an client i tried to use emulator on this pc and then Android smartphone, both of it throw simmilar errors. I tried to listen and connect 127.0.0.1 7000 and then tried to connect and listen my local ip adress (for actionscript client it all work fine). – user1324420 Commented May 5, 2012 at 18:25
Add a ment  | 

2 Answers 2

Reset to default 2

Quick fix: Host puter can always be accessed from emulator with IP address: 10.0.2.2 So you should use this ip address in android code to connect with host puter.

Further Details(here):

Android emulator is not on the same network as on which the host puter is. Rather android emulator is on a virtual network, behind a virtual router. So the emulator cannot connect to private ip address of your host puter.(Since it is on a different network).

And when you use localhost(or 127.0.0.1) in android code, it means that you want to access the android device so it does not make sense in your case.

To run it on your phone you also need the following permission on you AndroidManifest.xml:

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

I'd like to see the server side since I see no other error.

本文标签： javasimple android socket clientStack Overflow

版权声明：本文标题：java - simple android socket client - Stack Overflow 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.betaflare.com/web/1742193483a2430647.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。