Question

我在网络上找到的答案是使用request.args.get。但是，我无法管理它。我有以下简单的例子：

from flask import Flask
app = Flask(__name__)

@app.route("/hello")
def hello():
    print request.args['x']
    return "Hello World!"

if __name__ == "__main__":
    app.run()

我在浏览器中转到127.0.0.1:5000/hello?x=2，结果我得到了：

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

我做错了什么？

Answer 1

简单的答案是你没有从flask包中导入request全局对象。

from flask import Flask, request

通过执行

，可以通过在调试模式下运行开发服务器来轻松确定自己

app.run(debug=True)

这将为您提供一个包含以下内容的堆栈跟踪：

print request.args['x']
NameError: global name 'request' is not defined

Answer 2

java.util.hashmap ？n = 5

类似于之前的情况

public class AddressControl extends AddressControlTask {

private View anchorView;

// You must send a context
public static void run(Context context, View anchorView, String zipCode, String houseNumber) {
    new AddressControl(context, anchorView).execute(zipCode, houseNumber);
}

private AddressControl(Context context, View anchorView) {
    super(context);
    this.anchorView = anchorView;
}

@Override
public Class<? extends AbstractTask> getTaskClass() {
    return getClass();
}

@Override
protected void onPostExecute(final List<Address> result) {
    if (result.size() == 0) {
        result.add(null);


        destroyDialog();

        LayoutInflater inflater = (LayoutInflater) getContext().getSystemService( Context.LAYOUT_INFLATER_SERVICE );
        View view = inflater.inflate( R.layout.control_address_fragment, null );

        ImageView okaddress = (ImageView)view.findViewById(R.id.address_ok);

        okaddress.setImageResource(R.drawable.clear);



        final CustomAlertDialog alertDialog = new CustomAlertDialog(getContext());
        alertDialog.setPositiveButton("Ok", new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                alertDialog.dismiss();
            }
        });
        alertDialog.setTitle("Wrong");

        alertDialog.setText("Address is not correct");
        alertDialog.show();
        super.onPostExecute(result);
    } if(result.size() == 1) {
        super.onPostExecute(result);
    } else {
        destroyDialog();
        Context context = getContext();
        CustomSelectDialog dialog = new CustomSelectDialog(context, anchorView);
        dialog.setOnItemSelectListener(new CustomSelectDialog.OnItemSelectedListener() {
            @Override
            public void onItemSelected(String text, Object value) {
                List<Address> addressList = new ArrayList<>();
                addressList.add((Address) value);
                onPostExecute(addressList);
            }
        });
        dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(DialogInterface dialogInterface) {
                onPostExecute(new ArrayList<Address>());
            }
        });
        for(Address address : result) {
            dialog.addItem(StringUtils.getAddressText(address), address);
        }
        dialog.setTitle("Enter true address, please");
        dialog.show();
    }
}
}

可以做到这一点

如何获取烧瓶中get请求的参数值？

2 个答案: