http-headers

问题 When you write some binary data in the http response stream (of Servlet etc) or using the Content-disposition header, what is the factor that determines whether the downloaded file is saved as readonly or has write permissions ? How can we control whether to make it read-only or not? Is that browser/OS dependant? 回答1: The only specified parameters for the Content-Disposition header field are filename , creation-date , modification-date , read-date , and size . You may use custom parameters

问题 I am trying to retrieve data from server using volley, but when I call this method the first time, I get the response from server, but null is returned by the method. If I call it the second time I get the last response. public String retrieveDataFromServer(String url, String param, final String token){ StringRequest stringRequest = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() { @Override public void onResponse(String response) { try{ data = new JSONObject

问题 I'm would to know why AVPlayer ask's union ranges in requests. Example: 1. We have good wi-fi connection. 2. Track with total length = 1000000. AVPlayer in first will ask bytes=0-1 - its ok, it just "ping" the availability of track. But after that it will ask bytes=0-999999 - and get content-len 1000000 ; And after that it will ask bytes=40000-999999 - and get content-len 599999 ; Why it make third request if we must have all data from second request (bytes=0-999999)? 来源： https:/

问题 I'm would to know why AVPlayer ask's union ranges in requests. Example: 1. We have good wi-fi connection. 2. Track with total length = 1000000. AVPlayer in first will ask bytes=0-1 - its ok, it just "ping" the availability of track. But after that it will ask bytes=0-999999 - and get content-len 1000000 ; And after that it will ask bytes=40000-999999 - and get content-len 599999 ; Why it make third request if we must have all data from second request (bytes=0-999999)? 来源： https:/

问题 Some user script implementations (like Google Chrome) allow direct cross AJAX requests, but some others don't, and use Same Origin Policy restrictions. Here's a part of code: /* * Get the size of the file. * @Button the current button for downloading the video. * @Url the http url of the video. */ function SetFileSize(Button, Url) { var ajax = new XMLHttpRequest(); ajax.onloadend = function () { GetResolution(Button, Url, ' - ' + (parseInt(this.getResponseHeader("Content-Length")) / 1048576)

问题 Some user script implementations (like Google Chrome) allow direct cross AJAX requests, but some others don't, and use Same Origin Policy restrictions. Here's a part of code: /* * Get the size of the file. * @Button the current button for downloading the video. * @Url the http url of the video. */ function SetFileSize(Button, Url) { var ajax = new XMLHttpRequest(); ajax.onloadend = function () { GetResolution(Button, Url, ' - ' + (parseInt(this.getResponseHeader("Content-Length")) / 1048576)

问题 I'm using Angular in the frontend and Jersey for backend. I am getting an exception when I execute my PUT request. This is the Angular code: const header=new Headers({'Content-Type':'application/x-www-form-urlencoded'}); header.append("Access-Control-Allow-Methods", "POST"); header.append("Access-Control-Allow-Headers","Access-Control-Allow-Origin"); return this.http.post('http://localhost:8080',home,{headers: header}) .pipe(map((response: Response)=>{return response.json();})); This is my

问题 I'm using Angular in the frontend and Jersey for backend. I am getting an exception when I execute my PUT request. This is the Angular code: const header=new Headers({'Content-Type':'application/x-www-form-urlencoded'}); header.append("Access-Control-Allow-Methods", "POST"); header.append("Access-Control-Allow-Headers","Access-Control-Allow-Origin"); return this.http.post('http://localhost:8080',home,{headers: header}) .pipe(map((response: Response)=>{return response.json();})); This is my

问题 I've got several newbie questions about how Restlet client handles media type header: What will Restlet client put in 'content-type' header if I pass in an entity of type a) a POJO or b) an InputStream instance? And what the 'accept' header will be? If I want to transfer a POJO in JSON format in HTTP body, do I need to serialize the POJO and pass it in as a JSON string or can I just pass in the POJO and Restlet will do the rest? If it's the former case, do I need to specify the 'content-type'

问题 I've got several newbie questions about how Restlet client handles media type header: What will Restlet client put in 'content-type' header if I pass in an entity of type a) a POJO or b) an InputStream instance? And what the 'accept' header will be? If I want to transfer a POJO in JSON format in HTTP body, do I need to serialize the POJO and pass it in as a JSON string or can I just pass in the POJO and Restlet will do the rest? If it's the former case, do I need to specify the 'content-type'