Question

E/Volley: [5836] NetworkDispatcher.run: Unhandled exception
java.lang.NullPointerException: Attempt to invoke virtual method 'int
java.lang.String.length()' on a null object reference

这是我的代码：

private ImageView imgNBI;
private Bitmap bitmap;
private String image, name, imgtype, retrieveDriverID,driverID;

private String KEY_DRIVERID = "driverid";
private String KEY_IMAGE = "image";
private String KEY_IMAGETYPE = "imgtype";
private String KEY_NAME = "name";
private Context ctx = this;

ProgressDialog pDialog;
Context context = this;

private String UPLOAD_URL ="http://angkas.net23.net/uploadimage1.php";

这是我的更新代码：

private void update() {
pDialog = new ProgressDialog(context);
pDialog.setMessage("Loading...");
pDialog.setCancelable(false);
pDialog.show();
getUser();
retrieveDriverID = driverID;
StringRequest stringRequest = new StringRequest(Request.Method.POST, UPLOAD_URL,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                pDialog.dismiss();
                Toast.makeText(Requirements_1.this, "This is response: "+response, Toast.LENGTH_LONG).show();
            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                pDialog.dismiss();
                Toast.makeText(Requirements_1.this, "This is error: "+error.getMessage(), Toast.LENGTH_LONG).show();
            }
        }) {
    @Override
    protected Map<String, String> getParams() throws AuthFailureError {
        image = getStringImage(bitmap);
        String ddrid = retrieveDriverID;
        String drname = name;

        Map<String, String> params = new HashMap<>();
        params.put(KEY_DRIVERID, ddrid);
        if(ddrid != null){params.put(KEY_DRIVERID,ddrid);}
        params.put(KEY_IMAGETYPE, "NBIImg");
        params.put(KEY_IMAGE, image);
        if(image != null){params.put(KEY_IMAGE,image);}
        params.put(KEY_NAME, drname);
        if(drname != null){params.put(KEY_NAME,drname);}
        return params;
    }
};

RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

当我点击imageView：

时

public void clicknbi(View view) {
showFileChooser("1");
}
private void showFileChooser(String request) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), 1);
}

这是活动结果：

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

if (requestCode == 1 && resultCode == RESULT_OK && data != null && data.getData() != null) {
    Uri filePath = data.getData();
    try {
        //Getting the Bitmap from Gallery
        bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);
        //Setting the Bitmap to ImageView
        imgNBI.setImageBitmap(bitmap);
    } catch (IOException e) {
        e.printStackTrace();
    }
}
}

转换图片：

public String getStringImage(Bitmap bmp){
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos);
byte[] imageBytes = baos.toByteArray();
String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT);
return encodedImage;
}

这是我的PHP：

<?php
if($_SERVER['REQUEST_METHOD']=='POST'){
$RegistrationDate = date('Y-m-d');
$driverid = $_POST['driverid'];
 $imgtype = $_POST['imgtype'];
$image = $_POST['image'];
$name = $_POST['name'];

require_once('dbcon.php');

$pathname = "$name$imgtype";

$path = "Images/$pathname.png";

$actualpath = "http://angkas.net23.net/$path";

//$sql = "INSERT INTO driverregistration     (DriverID,RegistrationDate,EnglishProficiency,TagalogProficiency,NBIImg) VALUES ('$driverid','$RegistrationDate','','','$actualpath');";

 $sql = "UPDATE driverregistration SET NBIImg = '$actualpath' WHERE DriverID = $driverid;";


if(mysqli_query($con,$sql))
{
 file_put_contents($path,base64_decode($image));
 echo "Successfully Registered";
}  
else
{
echo "Could not insert image";
}

}
else
{
 echo 'error';
  }
?>

我遇到两个错误。第一个是空对象引用，第二个错误是：

 java.net.SocketException: sendto failed: EPIPE (Broken pipe)

我在Toast中收到此错误。

我的排球错误。我正在尝试在我的网络服务器中上传图片

0 个答案: