[英]Java HttpURLConnection no cookies
英語:
您好,我目前正在嘗試使用HttpURLConnection登錄,然后獲取會話cookie ...
我已經在我自己的服務器上的某些測試頁上進行了嘗試,並且效果很好。 當我發送“ a = 3&b = 5”時,我得到的cookie是“ 8”(PHP頁面將兩者加在一起)! 但是當我在另一頁上嘗試時,輸出只是該頁,就好像我只是用POST沒發送任何東西一樣:(
歡迎提出一般改進建議! :)
我的代碼:
HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("useragent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0");
conn.setRequestProperty("Connection", "keep-alive");
DataOutputStream out = new DataOutputStream(conn.getOutputStream());
out.writeBytes("USER=tennox&PASS=*****");
out.close();
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
String response = new String();
while ((line = in.readLine()) != null) {
response = response + line + "\n";
}
in.close();
System.out.println("headers:");
int i = 0;
String header;
while ((header = conn.getHeaderField(i)) != null) {
String key = conn.getHeaderFieldKey(i);
System.out.println(((key == null) ? "" : key + ": ") + header);
i++;
}
String cookies = conn.getHeaderField("Set-Cookie");
System.out.println("\nCookies: \"" + cookies + "\"");
我看到以下為什么您沒有獲得Cookie的可能性。
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