数据库值不更新（Android）

Question

所以我有一个ProfileActivity，我将用户的详细信息传递给EditProfileActivity ..传递的值被正确放置在指定的edittext上。但每当我更改值在edittexts并点击保存在数据库中button..the值不modified..Can请你帮我

package com.example.androidproject; 


public class EditProfileActivity extends Activity { 

    Button Save, Delete; 
    EditText tname,tusername, tpassword, tpassword2, tbio; 
    TextView uname; 
    User u = new User(); 
    String editfullname,editpw,editpw2,editbio,getuname; 
    String fn,b,pw,pw2; 
    TextView tv1,tv2,tv3; 
    String getfn,getpw,getbio; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_editprofile); 

     Save = (Button) findViewById(R.id.buttonsignup); 
     Delete = (Button) findViewById(R.id.button1); 
     tname = (EditText) findViewById(R.id.txtfullname); 
     tusername = (EditText) findViewById(R.id.txtun); 
     tpassword = (EditText) findViewById(R.id.txtpw); 
     tpassword2 = (EditText) findViewById(R.id.txtpw2); 
     tbio = (EditText) findViewById(R.id.txtbio); 
     uname = (TextView) findViewById(R.id.getusername); 
     tv1 = (TextView) findViewById(R.id.textView2); 
     tv2 = (TextView) findViewById(R.id.textView3); 
     tv3 = (TextView) findViewById(R.id.textView4); 

     Intent intent = getIntent(); 
     u.SetUsername(intent.getStringExtra(u.username())); 
     editfullname = (intent.getStringExtra("Fullname")); 
     editbio = (intent.getStringExtra("Bio")); 
     editpw = (intent.getStringExtra("Password")); 
     editpw2 = (intent.getStringExtra("Password2")); 
     uname.setText(u.getUsername()); 

     tname.setText(editfullname); 
     tpassword.setText(editpw); 
     tpassword2.setText(editpw2); 
     tbio.setText(editbio); 

     getuname = u.username().toString(); 



     Save.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View v) { 

      fn = tname.getText().toString(); 
      pw = tpassword.getText().toString(); 
      b = tbio.getText().toString(); 

      tv1.setText(fn); //i displayed to textviews the NEW values inputted from the edittexts. 
      tv2.setText(pw); 
      tv3.setText(b); 

      getfn = tv1.getText().toString(); //i put these to the namevalupairs in my asynctask 
      getpw = tv2.getText().toString(); 
      getbio = tv3.getText().toString(); 


       new SaveDataTask().execute(); 



      } 
     }); 



      } 

    class SaveDataTask extends AsyncTask<String, String, Void> { 
     protected void onPreExecute() { 

     } 

     @Override 
     protected Void doInBackground(String... params) { 
      byte[] data; 
      HttpPost httppost; 
      StringBuffer buffer = null; 
      HttpResponse response; 
      HttpClient httpclient; 
      InputStream inputStream; 
      List<NameValuePair> nameValuePairs; 

      nameValuePairs = new ArrayList<NameValuePair>(4); 
      nameValuePairs.add(new BasicNameValuePair("Fullname", getfn.trim())); 
      nameValuePairs.add(new BasicNameValuePair("Username", getuname)); 
      nameValuePairs.add(new BasicNameValuePair("Password", getpw.trim())); 
      nameValuePairs.add(new BasicNameValuePair("Bio", getbio.trim())); 
      try { 
       httpclient = new DefaultHttpClient(); 
       httppost = new HttpPost("http://192.168.1.6/webservices/mycontroller/updateuser.php"); 


       httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

       response = httpclient.execute(httppost); 
       inputStream = response.getEntity().getContent(); 

       data = new byte[256]; 

       buffer = new StringBuffer(); 

       int len = 0; 

       while (-1 != (len = inputStream.read(data))) { 
        buffer.append(new String(data, 0, len)); 
       } 
       //name= buffer.toString(); 



       inputStream.close(); 




       runOnUiThread(new Runnable(){ 
        public void run() { 
         Toast.makeText(EditProfileActivity.this, "UPDATED", Toast.LENGTH_LONG).show(); 


        } 
       }); 



      } 
      catch (Exception e) { 
       Toast.makeText(EditProfileActivity.this, "error" + e.toString(), Toast.LENGTH_LONG).show(); 
      } 
      return null; 
     } 
    } 







} 

这里是我更新的PHP代码：

<?php 
    mysql_connect("localhost","root",""); 
    mysql_select_db("poetrydb"); 

    $Fullname = $_POST['Fullname']; 
    $Username = $_POST['Username']; 
    $Password = $_POST['Password']; 
    $Bio = $_POST['Bio']; 


    $query_insert = "UPDATE account SET FullName ='$Fullname', Bio= '$Bio', Password ='$Password' WHERE Username ='$Username'"; 
    mysql_query($query_insert) or die(mysql_error()); 
    echo "UPDATED"; 

    ?> 

Answer 1

您需要更新点击事件，否则你将永远传递您在onCreate

Save.setOnClickListener(new View.OnClickListener() { 
    public void onClick(View v) { 
    // fetch the updated values from edittext and 
    // store them in string references 
     fn = tname.getText().toString(); 
     getuname = u.username().toString(); 
     pw = tpassword.getText().toString(); 
     b = tbio.getText().toString(); 
     new SaveDataTask().execute();