如何将 GPS 和网络位置坐标发送到服务器(静态 IP)? [英] How can I send the GPS and Network location cordinates to a server (static IP)?

问题描述

我是 Android 开发的初学者.我想制作一个 Android 应用，将 GPS 和网络位置(纬度和经度)发送到我的服务器(静态 IP).我找到了以下代码，它运行成功，在服务器端已经制作的应用程序接收数据(现在它与客户端应用程序无关)

I am a beginner in the Android Development.I want to make an android app which sends the GPS and network locations (lat & long) to my server (static IP). I have found the following code and it worked successfully, data receive at the app which is already made at server side (Right now it has nothing to do with client app)

当我点击 Android 应用上的发送位置"按钮时，我的服务器收到的数据.

Data received at my Server when I click the button 'Send Location' on my Android App.

• GET/31.4244456/74.7349772 HTTP/1.1

• GET /31.4244456/74.7349772 HTTP/1.1

主机:180.178.169.77:6081

Host: 180.178.169.77:6081

连接:保持活动状态

用户代理:Apache-HttpClient/不可用 (java 1.4)

User-Agent: Apache-HttpClient/Unavailable (java 1.4)

180.178.169.77是我的服务器IP，6081是端口

180.178.169.77 is my server IP and 6081 is the port

此时一切正常，我几乎实现了我想要的，但我面临的真正问题是我的 Android 应用程序在将此数据发送到服务器后挂起并崩溃.如果有人有想法，请解决我的问题.

At this point everything is going fine and I acheived almost what I wanted but the real problem I'm facing is that my Android app hangs and crash after sending this data to server. Please resolve my problem if anybody has an idea.

我从这里找到了代码.http://www.gideondsouza.com/blog/how-to-get-the-current-location-address-and-send-it-to-a-server-on-android#.UNLbTOT0Dxo

这是我的 AddressActivity.java

Here is my AddressActivity.java

package com.gideon.address;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;


public class AddressActivity extends Activity {
/** Called when the activity is first created. */
String lat="", lon="";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Button btnLocation = (Button)findViewById(R.id.btnLocation);
    btnLocation.setOnClickListener(new OnClickListener() {
        public void onClick(View arg0) {
            // Acquire a reference to the system Location Manager
            LocationManager locationManager = (LocationManager) AddressActivity.this.getSystemService(Context.LOCATION_SERVICE);
            // Define a listener that responds to location updates
            LocationListener locationListener = new LocationListener() {
                public void onLocationChanged(Location location) {
                    // Called when a new location is found by the network location provider.
                    lat = Double.toString(location.getLatitude());
                    lon = Double.toString(location.getLongitude());
                    TextView tv = (TextView) findViewById(R.id.txtLoc);
                    tv.setText("Your Location is:" + lat + "--" + lon);
                }

                public void onStatusChanged(String provider, int status, Bundle extras) {}
                public void onProviderEnabled(String provider) {}
                public void onProviderDisabled(String provider) {}
            };
            // Register the listener with the Location Manager to receive location updates
            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
        }
    });

    Button btnSend = (Button)findViewById(R.id.btnSend);
    btnSend.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            postData(lat, lon);
        }
    });

    Button btnAdd = (Button)findViewById(R.id.btnAddress);
    btnAdd.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            TextView tv = (TextView)findViewById(R.id.txtAddress);
            tv.setText(GetAddress(lat, lon));
        }
    });

}

public void postData(String la, String lo) {
    // Create a new HttpClient and Post Header
    HttpClient httpclient = new DefaultHttpClient();
    //HttpGet  htget = new HttpGet("http://myappurl.com/Home/Book/"+la+"/"+lo);
    HttpGet  htget = new HttpGet("http://180.178.169.77:6081/"+la+"/"+lo);

    try {
        // Execute HTTP Post Request
        HttpResponse response = httpclient.execute(htget);
        String resp = response.getStatusLine().toString();
        Toast.makeText(this, resp, 5000).show();


    } catch (ClientProtocolException e) {
        Toast.makeText(this, "Error", 5000).show();
    } catch (IOException e) {
        Toast.makeText(this, "Error", 5000).show();
    }
} 
public String GetAddress(String lat, String lon)
{
    Geocoder geocoder = new Geocoder(this, Locale.ENGLISH);
    String ret = "";
    try {
        List<Address> addresses = geocoder.getFromLocation(Double.parseDouble(lat), Double.parseDouble(lon), 1);
        if(addresses != null) {
            Address returnedAddress = addresses.get(0);
            StringBuilder strReturnedAddress = new StringBuilder("Address:
");
            for(int i=0; i<returnedAddress.getMaxAddressLineIndex(); i++) {
                strReturnedAddress.append(returnedAddress.getAddressLine(i)).append("
");
            }
            ret = strReturnedAddress.toString();
        }
        else{
            ret = "No Address returned!";
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        ret = "Can't get Address!";
    }
    return ret;
}
}

这是我的 AndroidManifest.xml

And here is my AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gideon.address"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".AddressActivity"
            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>

推荐答案

将 postData 从主线程移到辅助线程.在此处查看 Async 任务的示例:http://developer.android.com/reference/android/os/AsyncTask.html

Move postData off the main thread to a secondary thread. Look at Async task for examples here: http://developer.android.com/reference/android/os/AsyncTask.html

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