Question

我正在创建一个将用户坐标发送到数据库的Android应用程序。我的代码中没有错误，但是当我运行它时会出现错误。有一个GPSTracker类来获取纬度和经度。（没有错误）。我得到的错误是：

04-08 13:40:27.673 3036-3036/com.example.benoit.test W/System.err: com.android.volley. TimeoutError 04-08 13:40:27.674 3036- 3036/com.example.benoit.test W/System.err: at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:122) 04-08 13:40:27.674 3036-3036/com.example.benoit.test W/System.err: at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:105)

这是我的代码：

public class MainActivity extends AppCompatActivity {
    private Button emgbutton;
    String url = "http://10.0.2.2/work/wfile/test.php";

    AlertDialog.Builder builder;

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

        emgbutton = (Button) findViewById(R.id.emergency);
        builder = new AlertDialog.Builder(MainActivity.this);

        emgbutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final Animation myAnim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.bounce);

                // Use bounce interpolator with amplitude 0.2 and frequency 20
                MyBounceInterpolator interpolator = new MyBounceInterpolator(0.2, 20);
                myAnim.setInterpolator(interpolator);
                emgbutton.startAnimation(myAnim);
                GPSTracker mGPS = new GPSTracker(MainActivity.this);

                if (mGPS.canGetLocation) {
                    mGPS.getLocation();
                    final String ulat =String.valueOf(mGPS.getLatitude());
                    final String ulong =String.valueOf(mGPS.getLongitude());

                    StringRequest stringRequest= new StringRequest(
                        Request.Method.POST, url,
                        new Response.Listener<String>() {
                            @Override
                            public void onResponse(String response) {
                                builder.setMessage(response);
                                AlertDialog alertDialog= builder.create();
                                alertDialog.show();
                            }
                        },
                        new Response.ErrorListener() {
                            @Override
                            public void onErrorResponse(VolleyError error) {
                                Toast.makeText(getApplicationContext(),"Could not send ", Toast.LENGTH_LONG).show();
                                error.printStackTrace();
                            }
                        }
                    ){
                        @Override
                        protected Map<String, String> getParams() throws AuthFailureError {
                            Map<String,String> params= new HashMap<String, String>();
                            params.put("ulat",ulat);
                            params.put("ulong",ulong);
                            return params;
                        }
                    };
                    MySingleton.getInstance(MainActivity.this).addTorequestqueue(stringRequest);
                } else {
                    Toast.makeText(getApplicationContext(),"Turn on your GPS/Location ", Toast.LENGTH_LONG).show();
                }
            }
        });
    }
}

Answer 1

检查您是否写了正确的参数。

params.put（ “乌拉特”，乌拉特）; //当“ulat”和“ulong”不匹配时会发生这种情况 params.put（ “ULONG”，ULONG）; //使用表属性
连接错误。如果您使用的是localhost，请检查防火墙是否已关闭。另一个，您的互联网连接无法正常工作。

Android应用程序中将用户坐标发送到数据库中的错误

1 个答案: