Android數據以PHP的MYSQL

Question

我已經開發了一個應用程序在Android上，它是做什麼是收集使用谷歌地圖API的地方的GPS座標用戶將不得不輸入地方的信息，並提交給一個通過php的mysql數據庫。我的問題是，除了將數據提交給php來處理結果之外，我能夠做所有事情。對於android開發來說是新的，任何幫助都將不勝感激，下一次單獨演示的一個很好的解釋將會非常棒。謝謝

PS：一切都在一個文件因爲我在我的三星Galaxy選項卡上使用AIDE開發，基本版本將不允許外部文件。

package com.gpsproject.stgps; 

import android.app.*; 
import android.os.*; 
import android.view.*; 
import android.view.View.*; 
import android.widget.*; 
import android.location.*; 

import java.io.*; 

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.methods.HttpGet; 
import org.apache.http.impl.client.DefaultHttpClient; 
import android.text.*; 
import javax.xml.transform.*; 

public class MainActivity extends Activity 
{ 
private Button btnsave; 
private EditText bizname; 
private EditText bizaddr; 
private EditText bizphone; 
private EditText bizemail; 
private EditText bizwebsite; 
private EditText bizarea; 
private EditText bizdescription; 
private TextView txtinfo; 
Location location; 
String params; 
String errmsg; 
Boolean saveData = false; 
static final String MOTHERSHIP = "[MyServerAddress/server.php"; 

LocationListener myLocationListener = new LocationListener() { 
    public void onLocationChanged(Location _location) { 
     String msg; 
     msg = String.format("Latitude: %s \nLongitude: %s\nAltitude: %s\nAccuracy: %s m", _location.getLatitude(), 
     _location.getLongitude(), _location.getAltitude(), _location.getAccuracy()); 
     txtinfo.setText(msg); 
     location = _location; 
     saveData = true; 
    } 

    public void onStatusChanged(String provider, int status, Bundle extras) 
    { 
     String msg; 
     msg = String.format("provider %s status %d Extras %s", provider, status, extras); 
     Toast notify = Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG); 
     notify.setGravity(Gravity.TOP, 0, 0); 
     notify.show(); 
    } 

    public void onProviderEnabled(String provider) 
    { 
     String msg; 
     msg = String.format("provider %s ENABLED", provider); 
     Toast notify = Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG); 
     notify.setGravity(Gravity.TOP, 0, 0); 
     notify.show(); 
    } 

    public void onProviderDisabled(String provider) 
    { 
     String msg; 
     msg = String.format("provider %s DISABLED", provider); 
     Toast notify = Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG); 
     notify.setGravity(Gravity.TOP, 0, 0); 
     notify.show(); 
    } 
}; 

public String connect(String url) 
{ 
    String result = null; 

    try { 
     HttpClient httpclient = new DefaultHttpClient(); 

     // Prepare a request object 
     HttpGet httpget = new HttpGet(url); 

     // Execute the request 
     HttpResponse response; 


     response = httpclient.execute(httpget); 

     // Get hold of the response entity 
     HttpEntity entity = response.getEntity(); 
     // If the response does not enclose an entity, there is no need 
     // to worry about connection release 

     alert(String.format("entity for outside... %s", entity)); 


     if (entity != null) { 
      alert(String.format("Entity too dey fine fine.....", entity)); 
      InputStream instream = entity.getContent(); 
      result= convertStreamToString(instream); 
      // now you have the string representation of the HTML request 
      instream.close(); 
     } else { 
      alert(String.format("i no dey be: %s", entity)); 
      } 
    } catch (Exception e) { 
     //errmsg = e.getMessage(); 
     alert(e.getMessage()); 
    } 
    alert(result); 
    return result; 
} 

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

    txtinfo = (TextView)findViewById(R.id.txtvLatlon); 
    bizname = (EditText)findViewById(R.id.txtBizname); 
    bizaddr = (EditText)findViewById(R.id.txtAddress); 
    bizphone = (EditText)findViewById(R.id.txtPhone); 
    bizemail = (EditText)findViewById(R.id.txtEmail); 
    bizwebsite = (EditText)findViewById(R.id.txtWebsite); 
    bizarea = (EditText)findViewById(R.id.txtArea); 
    bizdescription = (EditText)findViewById(R.id.txtDescription); 
    btnsave = (Button)findViewById(R.id.btnSave); 
    btnsave.setOnClickListener(new OnClickListener() { 
      public void onClick(View v) 
      { 
       String ret; 
       String req; 

       req = String.format("bizname=%s&address=%s&phone=%s&email=%s&website=%s&area=%s&description=%s&latitude=%s&longitude=%s&accuracy=%s", 
          convertURL(bizname.getText().toString()), convertURL(bizaddr.getText().toString()), bizphone.getText(), bizemail.getText(), bizwebsite.getText(), 
          convertURL(bizarea.getText().toString()), convertURL(bizdescription.getText().toString()), 
          location.getLatitude(), location.getLongitude(), location.getAccuracy()); 

       req = String.format("%s?%s", MOTHERSHIP, req); 
       alert(String.format("2 request is::::: ", req)); 
       try { 
        ret = connect(req); 
        if (ret != null) { 
         alert(ret); 
        } else { 
         alert(String.format("Error connecting to server: %s", errmsg)); 
         alert(ret); 
        } 
       } catch(Exception e) { 
        alert(e.getMessage()); 
       } 
      } 
     }); 

    LocationManager locationManager = (LocationManager)getSystemService(LOCATION_SERVICE); 

    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, myLocationListener); 
    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, myLocationListener); 
    locationManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER, 0, 0, myLocationListener); 
} 



/** 
* Convert inputStream 
* 
* @param is 
* @return String 
*/ 
private String convertStreamToString(InputStream is) 
{ 
    /* 
    * To convert the InputStream to String we use the BufferedReader.readLine() 
    * method. We iterate until the BufferedReader return null which means 
    * there's no more data to read. Each line will appended to a StringBuilder 
    * and returned as String. 
    */ 
    BufferedReader reader = new BufferedReader(new InputStreamReader(is)); 
    StringBuilder sb = new StringBuilder(); 

    String line = null; 
    try { 
     while ((line = reader.readLine()) != null) { 
      sb.append(line + "\n"); 
     } 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } finally { 
     try { 
      is.close(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
    } 
    return sb.toString(); 
} 

public String convertURL(String str) { 
String url = null; 
try{ 
url = new String(str.trim().replace(" ", "%20").replace("&", "%26") .replace(",", "%2c").replace("(", "%28").replace(")", "%29") .replace("!", "%21").replace("=", "%3D").replace("<", "%3C") .replace(">", "%3E").replace("#", "%23").replace("$", "%24") .replace("'", "%27").replace("*", "%2A").replace("-", "%2D") .replace(".", "%2E").replace("/", "%2F").replace(":", "%3A") .replace(";", "%3B").replace("?", "%3F").replace("@", "%40") .replace("[", "%5B").replace("\\", "%5C").replace("]", "%5D") .replace("_", "%5F").replace("`", "%60").replace("{", "%7B") .replace("|", "%7C").replace("}", "%7D")); }catch(Exception e){ e.printStackTrace(); } return url; } 

private void alert(String msg) 
{ 
    Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG).show(); 
} 

}

Answer 1

林用Java或Android沒有專家，所以我承擔......

static final String MOTHERSHIP = "[MyServerAddress/server.php"; 

不知道這僅僅是一個錯字或什麼...但你有[在這之前，並不應該把這個絕對的http://路徑提交給HttpClient？

還必須添加權限清單檔案中的...

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

而且......你connect()方法...

特殊照顧設定

String result = null; 

然後調用它在底部...

alert(result); 
return result; 

但是在代碼中我沒有看到你使用它，所以它不會總是null？