您好，我想使用排球库连接到mysql数据库，我已经设置了post方法以便发出请求。
但是我尝试请求时收到（-1）值，所以我不知道问题出在哪里。
但是我尝试请求时收到（-1）值，所以我不知道问题出在哪里。
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog = new ProgressDialog(Login.this);
dialog.setMessage("please wait...");
dialog.setCancelable(true);
dialog.show();
if (validateEmail()) {
if (validatePassword()) {
// Toast.makeText(Login.this, email.getText()+" "+pass.getText(), Toast.LENGTH_SHORT).show();
String url = "......";
StringRequest stringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.e("LPC", response.toString());
if (response.equals("1")) {
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString("email",email.getText().toString());
editor.putString("pass",pass.getText().toString());
editor.commit();
Intent intent = new Intent(Login.this , com.example.fahad.finalyearprojectlayout.MainActivity.class);
startActivity(intent);
finish();
}
else{
Toast.makeText(Login.this, "Wrong Credentials", Toast.LENGTH_SHORT).show();
dialog.cancel();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("LPC", error.toString());
dialog.cancel();
}
}) {
public Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
params.put("email", email.getText().toString());
params.put("pass", pass.getText().toString());
params.put("last", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date().getTime()).toString());
return params;
}
};
queue.add(stringRequest);
} else {
ErrorDialog("Invalid Password");
}
} else {
ErrorDialog("Invalid Email\nInvalid Password");
}
}
});
logcat
2018-10-20 16:17:19.323 1680-1734/? W/audio_hw_generic: Not supplying enough data to HAL, expected position 50052543 , only wrote 50052240
2018-10-20 16:17:19.352 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.355 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.360 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.363 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.412 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.430 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.444 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.448 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:19.460 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:20.152 6900-6900/com.example.yousaf.finalyearprojectlayout E/LPC: -1
2018-10-20 16:17:20.156 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:20.214 2059-3071/system_process W/InputMethodManagerService: Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@6a0cab9 attribute=null, token = android.os.BinderProxy@789f7dd
2018-10-20 16:17:20.226 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:20.230 6900-6919/com.example.yousaf.finalyearprojectlayout D/EGL_emulation: eglMakeCurrent: 0xa1d04060: ver 3 0 (tinfo 0xa1d032c0)
2018-10-20 16:17:20.390 1344-1344/? W/SurfaceFlinger: couldn't log to binary event log: overflow.
2018-10-20 16:17:22.159 2059-2059/system_process W/WindowManager: Attempted to remove non-existing token: android.os.Binder@5dfefbd
2018-10-20 16:17:22.549 1680-1735/? W/audio_hw_generic: Not supplying enough data to HAL, expected position 50359892 , only wrote 50207040
2018-10-20 16:17:27.275 1344-1368/? E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property
2018-10-20 16:17:27.280 1344-1395/? D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1536000
服务器端代码
<?php
mysqli_connect("fdb22.awardspace.net","2853850_mydb","0000000000Abc");//change server name //pass username according your settings
$conn = mysqli_connect("myhost","user","pass","dbname");
mysqli_select_db($conn,'2853850_mydb');
$email=$_POST['email'];
$pass=$_POST['pass'];
$last=$_POST['last'];
$sql1="update bts set last_login = '$last' where email = '$email' and pass = '$pass'";
if (!$sql1) {
echo "Could not successfully run query ($sql) from DB: " . mysqli_error();
exit;
}
else
{
echo(mysqli_affected_rows($conn));
}
mysqli_close($conn);
?>
解决此问题的任何解决方案。
谢谢
答案 0 :(得分：0)
使用以下命令在PHP文件中执行查询
$query = mysqli_query($conn, $sql1);
if(!$query) {
//query not executed
}
else {
//return no of row affcted
}