Login android project into localhost server - json

Question

This is my Code:
public void CheckUserNameandPwd() {
// TODO Auto-generated method stub
String username = u.getText().toString().trim();
String pwd=pwdd.getText().toString().trim();
if(username.length()==0){
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(this);
dlgAlert.setMessage("Fill UserName!");
dlgAlert.setTitle("Error");
dlgAlert.setPositiveButton("OK", null);
dlgAlert.setCancelable(true);
dlgAlert.create().show();
return;
}
else if(pwd.length()==0 ){
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(this);
dlgAlert.setMessage("Fill Password!");
dlgAlert.setTitle("Error");
dlgAlert.setPositiveButton("OK", null);
dlgAlert.setCancelable(true);
dlgAlert.create().show();
return;
}
else{
if(verifyLogin(username,pwd)){
Toast.makeText(getApplicationContext(),"Login Success",Toast.LENGTH_SHORT).show();
startActivity(new Intent(Login.this,MainActivity.class));
}else{
Toast.makeText(getApplicationContext(),"error occur!",Toast.LENGTH_SHORT).show();
// startActivity(new Intent(Login.this,mainlayout_activity.class));
}
}
}
private boolean verifyLogin(St
ring username, String pwd) {
try{
showpDialog();
DefaultHttpClient httpclient=new DefaultHttpClient();
HttpGet httpget=new HttpGet("http://127.0.0.1:8083/MyService.svc/LoginForUsers?UserName=" + username + "&Password=" + pwd);
HttpResponse httpresponse=httpclient.execute(httpget);
HttpEntity httpentity=httpresponse.getEntity();
InputStream stream=httpentity.getContent();
String result=ConvertStreamToString(stream);
if(result.charAt(1)=='1'){
hidepDialog();
return true;
}else {
hidepDialog();
return false;
}
}catch (Exception e){
hidepDialog();
return false;
}
}
private String ConvertStreamToString(InputStream is) {
BufferedReader reader=new BufferedReader(new InputStreamReader(is));
StringBuffer sb=new StringBuffer();
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();
}

Answer 1

Never use a GET request to your server if you have a password on the url!!
Here's a POST request that may help you. Taken from here
...
// Create data variable for sent values to server
String 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
{
// Defined URL where to send data
URL url = new URL("http://androidexample.com/media/webservice/httppost.php");
// Send POST data request
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write( data );
wr.flush();
// Get the server response
reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = null;
...