PhantomJS - customHeaders 屬性

customHeaders 函式指定頁面發出的每個請求將傳送給伺服器的其他 HTTP 請求頭。預設值為一個空物件“{}”。在傳送到伺服器之前，標頭名稱和值將以 US-ASCII 編碼。

語法

其語法如下所示 −

var wpage = require('webpage').create();
wpage.customHeaders = {
   //specify the headers
};

示例

以下示例顯示了使用 customHeaders 屬性。

var page = require('webpage').create(); 
var server = require('webserver').create(); 
var port = 8080; 

var listening = server.listen(8080, function (request, response) { 
   console.log("GOT HTTP REQUEST"); 
   console.log(JSON.stringify(request, null, 4));  
}); 

var url = "https://:" + port + "/foo/response.php"; 
console.log("sending request to :" +url); 
page.customHeaders = {'Accept-Language' : 'en-GB,en-US;q = 0.8,en;q = 0.6'}; 

//additional headers are mentioned here 
page.open(url, function (status) {  
   if (status !== 'success') { 
      console.log('page not opening'); 
   } else { 
      console.log("Getting response from the server:"); 
   } 
   phantom.exit(); 
});

帶有 customheader 的輸出

以上程式生成以下輸出。

sending request to :https://:8080/foo/response.php 
GOT HTTP REQUEST { 
   "headers": { 
      "Accept": "text/html,application/xhtml+xml,application/xml;q = 0.9,*/*;q = 0.8", 
      "Accept-Encoding": "gzip, deflate", 
      "Accept-Language": "en-GB,en-US;q = 0.8,en;q = 0.6", 
      "Connection": "Keep-Alive", 
      "Host": "localhost:8080", 
      "User-Agent": "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/538.1 (KHTML, like Gecko) PhantomJS/2.1.1 Safari/538.1" 
   }, 
   "httpVersion": "1.1", 
   "method": "GET", 
   "url": "/foo/response.php" 
}

在上面的示例中，我們使用 customheader 設定 Accept-Language，並且在 http 標頭中顯示了相同的設定。

不帶 customheader 的輸出

以上程式生成以下不帶 customheader 的輸出。

sending request to :https://:8080/foo/response.php 
GOT HTTP REQUEST { 
   "headers": { 
      "Accept": "text/html,application/xhtml+xml,application/xml;q = 0.9,*/*;q = 0.8", 
      "Accept-Encoding": "gzip, deflate", 
      "Accept-Language": "en-IN,*", 
      "Connection": "Keep-Alive", 
      "Host": "localhost:8080", 
      "User-Agent": "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/538.1 (KHTML, like Gecko) PhantomJS/2.1.1 Safari/538.1" 
   }, 
   "httpVersion": "1.1", 
   "method": "GET", 
   "url": "/foo/response.php" 
} 

沒有 custom 標頭，accept 語言將如以上輸出中所示。使用 customheader 屬性，可以更改所需的 http 標頭。