http-post | 易学教程

Response.Redirect which POSTs data to another URL in ASP.NET

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问题 I want to redirect a response to another URL while it contains some POST data in it's HTTP header. // Inside an ASP.NET page code behind: Response.Redirect("http://www.example.com/?data=sent%20via%20GET"); // This will sent data to http://www.example.com via GET. // I want to POST this data to http://www.example.com instead. How to do this in ASP.NET? 回答1: you can send huge data also with this trick.. Response.Clear(); StringBuilder sb = new StringBuilder(); sb.Append("<html>"); sb

How to use parameters with HttpPost

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I am using a RESTfull webservice with this methode: @POST @Consumes({"application/json"}) @Path("create/") public void create(String str1, String str2){ System.out.println("value 1 = " + str1); System.out.println("value 2 = " + str2); } In my Android app I want to call this method. How do I give the correct values to the parameters using org.apache.http.client.methods.HttpPost; I have noticed that I can use the annotation @HeaderParam and simply add headers to the HttpPost object. Is this the correct way? Doing it like: httpPost.setHeader("Accept", "application/json"); httpPost.setHeader("str1

Android upload image to server using base64

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问题 I am uploading image to server using base64 its working fine if image is small but if image is big it gives me memory out exception try { ByteArrayOutputStream stream = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream); bitmap.recycle(); byte[] byteArray = stream.toByteArray(); stream.close(); stream = null; String ba1 = Base64.encodeToString(byteArray, Base64.DEFAULT); bitmap = null; System.gc(); // immediately free bitmap byteArray = null; System.gc();

HTTP POST response into WebView in android

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问题 I'm attempting to connect to the page using an HTTP Post. I do an http post for creating a webview. i need to redirect to another page from the webview. But when the continue button is clicked exception is thrown . My code is public class ZHttpPostProjActivity extends Activity { /** Called when the activity is first created. */ private WebView mWebView; private ProgressDialog progressBar; private static final String TAG = "ZHttpPostProjActivity"; @Override public void onCreate(Bundle

How to retrieve form “POST” data via cgi-bin program written in C

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问题 I am trying to retrieve POST data from html form using program written in C. At the moment I am using: char *formdata = getenv("QUERY_STRING"); if(formdata == NULL) /* no data retrieved */ This seems to be working fine with form "GET" method but not with "POST" method. How do I retrieve POST data? 回答1: POST data is appended to the request header, after a double newline. In a CGI-BIN environment, you read it from STDIN. Be warned that the server IS NOT REQUIRED to send you an EOF character (or

Pure JavaScript Send POST Data Without a Form

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Is there a way to send data using the POST method without a form and without refreshing the page using only pure JavaScript (not jQuery $.post() )? Maybe httprequest or something else (just can't find it now)? You can send it and insert the data to the body: var xhr = new XMLHttpRequest(); xhr.open("POST", yourUrl, true); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.send(JSON.stringify({ value: value })); By the way, for get request: var xhr = new XMLHttpRequest(); // we defined the xhr xhr.onreadystatechange = function () { if (this.readyState != 4) return; if (this.status ==

Getting content body from http post using php CURL

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问题 I am trying to debug an http post the I am trying to send from list application. I have been able to send the correct post from php CURL which corectly interfaces with my drupal 7 website and uploads an image. In order to get this to work in my lisp application I really need to see the content body of my http post I have been able to see the headers using a call like this: curl_setopt($curl, CURLOPT_STDERR, $fp); curl_setopt($curl, CURLOPT_VERBOSE, 1); and the headers look the same in my lisp

How to prevent submitting the HTML form's input field value if it empty

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I have HTML form with input fields. Some of inputs can be empty, i.e. the value is "". <input name="commentary" value=""> Just now, when commentary field is not set, it appears in submit url like: &commentary= How I can remove empty inputs from the submit url, so when the commentary input is empty it would not be passed at all. Thank you very much. Update Thanks to minitech answer, I could resolve it. JavaScript code is below: $('#my-form-id').submit(function() { var commentary = $('#commentary').val(); if (commentary === undefined || commentary === "") { $('#commentary').attr('name', 'empty

Send FormData with other field in Angular

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I have a form with two input text and one upload . I have to send it to the server but I have some problem concatenating the file with the text. The server expects this answer: "title=first_input" "text=second_input" "file=my_file.pdf" This is the html : <input type="text" ng-model="title"> <input type="text" ng-model="text"> <input type="file" file-model="myFile"/> <button ng-click="send()"> This is the Controller : $scope.title = null; $scope.text = null; $scope.send = function(){ var file = $scope.myFile; var uploadUrl = 'my_url'; blockUI.start(); Add.uploadFileToUrl(file, $scope.newPost

How to set a Header field on POST a form?

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How can I set a custom field in POST header on submit a form? It cannot be done - AFAIK. However you may use for example jquery (although you can do it with plain javascript) to serialize the form and send (using AJAX) while adding your custom header. Look at the jquery serialize which changes an HTML FORM into form-url-encoded values ready for POST. UPDATE My suggestion is to include either a hidden form element a query string parameter Set a cookie value on the page, and then read it back server side. You won't be able to set a specific header, but the value will be accessible in the headers