在PHP頁面上發送字符串的方法

請我試着用'如何發送字符串到PHP頁面'的不同教程。我試過的這一款似乎是學習一些東西的最佳解決方案。該應用程序編譯沒有錯誤，但在我的設備上似乎沒有向PHP頁面發送任何內容。我給的權限在AndroidManifest.xml中在PHP頁面上發送字符串的方法

import java.io.BufferedReader; 
import java.io.InputStreamReader; 
import java.io.OutputStreamWriter; 
import java.io.UnsupportedEncodingException; 
import java.net.URL; 
import java.net.URLConnection; 
import java.net.URLEncoder; 

import android.os.Bundle; 
import android.support.v7.app.AppCompatActivity; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

public class MainActivity extends AppCompatActivity { 

TextView content; 
EditText fname,email,login,pass; 
String Name,Email,Login,Pass; 

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

    content = (TextView)findViewById(R.id.content); 
    fname =(EditText)findViewById(R.id.name); 
    email =(EditText)findViewById(R.id.email); 
    login =(EditText)findViewById(R.id.loginname); 
    pass =(EditText)findViewById(R.id.password); 


    Button saveme=(Button)findViewById(R.id.save); 
    saveme.setOnClickListener(new Button.OnClickListener(){ 
     public void onClick(View v) 
     { 
      try{ 

       GetText(); 
      } 
      catch(Exception ex) 
      { 
       content.setText("url exeption!"); 
      } 
     } 
    }); 
} 


public void GetText() throws UnsupportedEncodingException 
{ 

    Name = fname.getText().toString(); 
    Email = email.getText().toString(); 
    Login = login.getText().toString(); 
    Pass = pass.getText().toString(); 



    String data = URLEncoder.encode("name", "UTF-8") + "=" + URLEncoder.encode(Name, "UTF-8"); 
    data += "&" + URLEncoder.encode("email", "UTF-8") + "=" + URLEncoder.encode(Email, "UTF-8"); 
    data += "&" + URLEncoder.encode("user", "UTF-8") + "=" + URLEncoder.encode(Login, "UTF-8"); 
    data += "&" + URLEncoder.encode("pass", "UTF-8") + "=" + URLEncoder.encode(Pass, "UTF-8"); 

    String text = ""; 
    BufferedReader reader=null; 
    // Send data 
    try 
    { 

     URL url = new URL("http://thingsforcoins.com/receive/httppost.php"); 

     URLConnection conn = url.openConnection(); 
     conn.setDoOutput(true); 
     OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); 
     wr.write(data); 
     wr.flush(); 
     // Get the response 


     reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); 
     StringBuilder sb = new StringBuilder(); 
     String line = null; 


     while((line = reader.readLine()) != null) 
     { 
      sb.append(line + "\n"); 
     } 
     text = sb.toString(); 
    } 
    catch(Exception ex) 
    { 

    } 
    finally 
    { 
     try 
     { 

      reader.close(); 
     } 
     catch(Exception ex) {} 
    } 

    content.setText(text); 

} 

}

這個應用程序讀取四個領域的EditText和應sended到PHP頁面巫婆將顯示數據串保存數據。

來源

2017-10-07 Prova Allwinner

我認爲你應該這樣做：

 byte[] postData = data.getBytes(Charset.forName("UTF-8")); 
     int postDataLength = postData.length; 
     conn.setRequestMethod("POST"); 
     conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); 
     conn.setRequestProperty("Charset", "utf-8"); 
     conn.setRequestProperty("Content-Length", Integer.toString(postDataLength)); 
     conn.setUseCaches(false); 
     DataOutputStream wr = new DataOutputStream(conn.getOutputStream()); 
     wr.write(postData); 
     wr.close(); 
     if (conn.getResponseCode() == 200) { 
      //... 
     } else { 
      //... 
     }

哪裏data你也可能不需要String data = URLEncoder.encode("name", "UTF-8") + ... 代碼conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");行。

來源

2017-10-07 14:58:07

在PHP頁面上發送字符串的方法

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