[英]How to retrieve the download URL of an image from Firebase Storage?
[英]How to send image download URL from FireBase Storage to SQLServer Database?
我在将下载URL发送到sql server数据库时遇到问题,即使我获取了url并将其设置为TextView但它没有显示在数据库中。
这是我一直在尝试的代码,并尝试了很多方法,但仍然没有工作
public void Upload() {
if (filePath != null) {
final ProgressDialog progressDialog = new ProgressDialog(getActivity());
progressDialog.setTitle("Uploading");
progressDialog.show();
final StorageReference riversRef = FirebaseStorage.getInstance().getReference().child("BrandImages/" + brandname.getText().toString() + ".jpg");
riversRef.putFile(filePath)
.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
progressDialog.dismiss();
Task<Uri> task = taskSnapshot.getMetadata().getReference().getDownloadUrl();
task.addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess(Uri uri) {
String generatedFilePath = uri.toString();
imgpath.setText(generatedFilePath);
}
});
ConnectDatabase db = new ConnectDatabase();
Connection con = db.ConnectDB();
if (con == null)
Toast.makeText(getActivity(), "Please check your internet connection!", Toast.LENGTH_LONG).show();
else {
try {
Statement sm = con.createStatement();
int x = sm.executeUpdate("insert into CarBrand values('" + brandname.getText() + "','" + imgpath.getText() + "')");
if (x == 0)
Toast.makeText(getActivity(), "an error occurred, please try again in a few moments.", Toast.LENGTH_LONG).show();
else {
Toast.makeText(getActivity(), "Brand has been added.", Toast.LENGTH_LONG).show();
brandname.getText().clear();
}
} catch (SQLException e) {
if (e.getErrorCode() == 2627)
Toast.makeText(getActivity(), "Brand already exists!", Toast.LENGTH_LONG).show();
else
Toast.makeText(getActivity(), "an error occurred", Toast.LENGTH_LONG).show();
}
}
}
});
现在我得到了url并设置为(imgpath)这是一个TextView,但问题是当它插入到数据库时它显示TextView的默认值而不是下载URL
尝试把你的方法为你的sql db在监听器内(我不知道你的代码的上下文,但这可能不起作用,因为firebase方法是异步的)。
现在您确定在获取URL后立即执行您的方法。
像这样 :
Task<Uri> task = taskSnapshot.getMetadata().getReference().getDownloadUrl();
task.addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess(Uri uri) {
String generatedFilePath = uri.toString();
imgpath.setText(generatedFilePath);
ConnectDatabase db = new ConnectDatabase();
Connection con = db.ConnectDB();
if (con == null)
Toast.makeText(getActivity(), "Please check your internet connection!", Toast.LENGTH_LONG).show();
else {
try {
Statement sm = con.createStatement();
int x = sm.executeUpdate("insert into CarBrand values('" + brandname.getText() + "','" + imgpath.getText() + "')");
if (x == 0)
Toast.makeText(getActivity(), "an error occurred, please try again in a few moments.", Toast.LENGTH_LONG).show();
else {
Toast.makeText(getActivity(), "Brand has been added.", Toast.LENGTH_LONG).show();
brandname.getText().clear();
}
} catch (SQLException e) {
if (e.getErrorCode() == 2627)
Toast.makeText(getActivity(), "Brand already exists!", Toast.LENGTH_LONG).show();
else
Toast.makeText(getActivity(), "an error occurred", Toast.LENGTH_LONG).show();
}
}
}
});
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