凌空抽空参数 [英] Volley is sending empty params
本文介绍了凌空抽空参数的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在我的Android应用中，我正在发送截击POST请求，但该请求不起作用。而是发送空参数。
In my android app, I am sending a volley POST request and it's not working. Rather it is sending empty parameters.
如果我输入网址（ https://blogurl.com/wp-json/wp/v2/comments?post=20081&author_name = ozuf& author_email=myemail@my.com& content = This_is_a_sampe_comment ）并发送POST请求，即可产生所需的结果。
If I enter the url (https://blogurl.com/wp-json/wp/v2/comments?post=20081&author_name=Ozuf&author_email=myemail@my.com&content=This_is_a_sampe_comment) in postman and send a POST request it yields the desired result.
和代码由Postman生成的对于Java OKHttp来说是这样的：
And the code generated by Postman looks like this for JAVA OKHttp:
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url("https://blogurl.com/wp-json/wp/v2/comments?post=20081&author_name=Ozuf&author_email=myemail@my.com&content=This_is_a_sampe_comment")
.post(null)
.addHeader("cache-control", "no-cache")
.addHeader("postman-token", "23f2c2587-e9eb-5446-3d73-a1a1a6814683")
.build();
Response response = client.newCall(request).execute();
这是我用来发送POST请求的代码：
This is the code I am using to send the POST request:
public void submitComment() {
final String comment = commentContent.getText().toString().trim();
final String name = commentName.getText().toString().trim();
final String email = commentEmail.getText().toString().trim();
Log.d(TAG, "submitComment called");
if (allFieldsAreValid()) {
Log.d(TAG, "All fields are valid");
final String postComment = "https://blogurl.com/wp-json/wp/v2/comments?";
final PostingComment postingComment = PostingComment.newInstance();
postingComment.show(getFragmentManager(), "fragmentDialog");
JsonObjectRequest postDetails = new JsonObjectRequest(Method.POST, postComment, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
parseResponse(response);
postingComment.dismiss();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d(TAG, "onErrorResponse for getPost called");
VolleyLog.d(TAG, "Error: " + error.getMessage());
postingComment.dismiss();
if (sthWrongAlert != null) {
sthWrongAlert.show();
}
}
}) {
@Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("post", comtUrl);
params.put("author_name", name);
params.put("author_email", email);
params.put("content", comment);
return params;
}
};
int retrytimes = 10;
RetryPolicy policy = new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS, retrytimes, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
postDetails.setRetryPolicy(policy);
//Creating requestqueue
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
//Adding request queue
requestQueue.add(postDetails);
Log.d(TAG, "Data sent is " + comment + name + email);
} else {
Log.d(TAG, "All fields are not valid");
}
}
就像我之前说的那样，请求变为true，但参数不随其发送。
And Like I said before, the request goes true but the parameters are not sent along with it.
public void submitComment() {
String comment = null;
try {
comment = URLEncoder.encode(commentContent.getText().toString().trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String name = null;
try {
name = URLEncoder.encode(commentName.getText().toString().trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String email = null;
try {
email = URLEncoder.encode(commentEmail.getText().toString().trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Log.d(TAG, "submitComment called");
if (allFieldsAreValid()) {
Log.d(TAG, "All fields are valid");
final String postComment = "https://blogurl.com/wp-json/wp/v2/comments?post="+comtUrl+"&content="+comment+"&author_name="+name+"&author_email="+email;
final PostingComment postingComment = PostingComment.newInstance();
postingComment.show(getFragmentManager(), "fragmentDialog");
JsonObjectRequest postDetails = new JsonObjectRequest(Method.POST, postComment, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
parseResponse(response);
postingComment.dismiss();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d(TAG, "onErrorResponse for getPost called");
VolleyLog.d(TAG, "Error: " + error.getMessage());
postingComment.dismiss();
if (sthWrongAlert != null) {
sthWrongAlert.show();
}
}
}) {
@Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}
};
int retrytimes = 10;
RetryPolicy policy = new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS, retrytimes, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
postDetails.setRetryPolicy(policy);
//Creating requestqueue
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
//Adding request queue
requestQueue.add(postDetails);
Log.d(TAG, "Data sent is " + comment + name + email);
} else {
Log.d(TAG, "All fields are not valid");
}
}
应用他的解决方案后，方法就是这样我的代码看起来像。但是我不断收到错误409。
After applying his solution, that's how my codes looks like. But I am constantly getting error 409.
06-20 19:13:26.405 25586-27084/com.jozuf.blog E/Volley: [6168] BasicNetwork.performRequest: Unexpected response code 409 for https://blog.url/wp-json/wp/v2/comments?post=20081content=Yyggggbbhhgggggg&author_nameRrrauthor_emailgf%40ff.com
推荐答案
在聊天室中调试之后，发现的问题是它是 POST 请求，但参数仍在请求URL中发送。
After the debugging in chat, the issue found was that it is a POST request but the parameters are still being sent in the request url.
在您的情况下，发送 POST 响应将使参数以多部分形式进入体内，需要固定。使用下面的代码更新您的代码
In your case sending a POST response will make the param to go in the body as a multipart form which needs to be fixed. Update you code with below
public void submitComment() {
String comment = null;
try {
comment = URLEncoder.encode(commentContent.getText().toString().trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String name = null;
try {
name = URLEncoder.encode(commentName.getText().toString().trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String email = null;
try {
email = URLEncoder.encode(commentEmail.getText().toString().trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Log.d(TAG, "submitComment called");
if (allFieldsAreValid()) {
Log.d(TAG, "All fields are valid");
final String postComment = "https://blogurl.com/wp-json/wp/v2/comments?post="+comtUrl+"&content="+comment+"&author_name="+name+"&author_email="+email;
final PostingComment postingComment = PostingComment.newInstance();
postingComment.show(getFragmentManager(), "fragmentDialog");
JsonObjectRequest postDetails = new JsonObjectRequest(Method.POST, postComment, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
parseResponse(response);
postingComment.dismiss();
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d(TAG, "onErrorResponse for getPost called");
VolleyLog.d(TAG, "Error: " + error.getMessage());
postingComment.dismiss();
if (sthWrongAlert != null) {
sthWrongAlert.show();
}
}
});
int retrytimes = 10;
RetryPolicy policy = new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS, retrytimes, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
postDetails.setRetryPolicy(policy);
//Creating requestqueue
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
//Adding request queue
requestQueue.add(postDetails);
Log.d(TAG, "Data sent is " + comment + name + email);
} else {
Log.d(TAG, "All fields are not valid");
}
}
重复的问题在此得到解释线程
The duplicate issue is explained in this thread
只需更改请求以具有此重试策略即可，
Just change the request to have this retry policy and it will work
request.setRetryPolicy(new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS * 2, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
这篇关于凌空抽空参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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