Question

我是Android Volley请求的新手。我已设法发布帖子并获取请求到服务器并获得响应。

 public void getCardDetails() throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException { 
StringRequest postRequest = new StringRequest(Request.Method.POST, url,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    // response
                    Log.d("Response from server","Customer Account"+response);

                    try {
                        results = signInActivity.splitQuery(response);

                        String encodedMessage = results.get("encodedMessage");
                        String serverSignature = results.get("signature");
                        //Log.d("CustomerAccount","encodedMessage:"+ encodedMessage);


                        String decodeMessage = security.decodeBase64(encodedMessage);
                        Log.d("CustomerAccount","DecodedMessage"+ decodeMessage);
                        customerDetailsXML = decodeMessage;



                        try {
                            String computedSignature = security.hashMac(decodeMessage, signature_key);



                                int responseCode = xmlHandler.getResponseCode(decodeMessage);
                                Log.d("CustomerAccount","Response Code: "+responseCode);

                            if (responseCode == 1001){
                                getCardBalance();


                                Log.d("CustomerAccount","Success");
                            }
                        } catch (InvalidKeyException e) {
                            e.printStackTrace();
                        } catch (NoSuchAlgorithmException e) {
                            e.printStackTrace();
                        } catch (JDOMException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }


                    } catch (UnsupportedEncodingException e) {
                        e.printStackTrace();
                    }


                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    // error
                    Log.d("Error.Response", error.toString());
                }
            }

    ) {
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> headers = new HashMap<>();
            headers.put("Content-type", "application/x-www-form-urlencoded;charset=\"utf-8\"");
            headers.put("Accept", "application/x-www-form-urlencoded");
            headers.put("Cache-Control", "no-cache");
            headers.put("Pragma", "no-cache");
            headers.put("User-Agent", "Mozilla/5.0");
            headers.put("Content-length", dataStream.toString());
            return headers;
        }

        @Override
        protected Map<String, String> getParams() {
            Map<String, String> params = new HashMap<String, String>();
            params.put("encodedMessage", encodedMessage_req);
            params.put("signature", signature);

            return params;
        }
    };
    Volley.newRequestQueue(this).add(postRequest);

}

上述请求以String XML格式获取服务器响应。我希望能够使用我执行请求的方法来返回XML，这样我就可以根据请求方法操作它。

有关如何实现这一目标的任何指示？

Answer 1

做这样的事情：

创建一个接口类：

public interface MyListener{ public void myMethod(String response); }
更改您的方法输入：public void getCardDetails(MyListener listener)
在public void onResponse(String response)

添加：

`listener.myMethod(response);`

使用返回值创建排球请求

1 个答案: