Question

我有这个浏览器类：

public class browser{

    private List<String> cookies;
    private HttpURLConnection conn;
<....>
public String GetPageContent(String url) throws Exception {

        URL obj = new URL(url);
        conn = (HttpURLConnection) obj.openConnection();

        // default is GET
        conn.setRequestMethod("GET");

        conn.setUseCaches(false);

        // act like a browser
        conn.setRequestProperty("User-Agent", USER_AGENT);
        conn.setRequestProperty("Accept",
                "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
        conn.setRequestProperty("Accept-Language",
                "en-GB,en;q=0.8,en-US;q=0.6,ro;q=0.4,fr;q=0.2");
        if (cookies != null) {
            for (String cookie : this.cookies) {
                conn.addRequestProperty("Cookie", cookie.split(";", 1)[0]);
            }
            System.out.println(cookies);
        }
        int responseCode = conn.getResponseCode();
        System.out.println("\nSending 'GET' request to URL : " + url);
        System.out.println("Response Code : " + responseCode);

        BufferedReader in = new BufferedReader(new InputStreamReader(
                conn.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // Get the response cookies
        setCookies(conn.getHeaderFields().get("Set-Cookie"));

        return response.toString();

    }

＆LT; ...＆GT;

public List<String> getCookies() {
    return cookies;
}

public void setCookies(List<String> cookies) {
    this.cookies = cookies;
}

如果我的所有请求都来自MainApp，那么一切都很好：

public class main_program {

    public static void main(String[] args) {
        Browser br = new Browser();
            Check_List users = new Check_List ();
            br.GetPageContent(//some url) >> see the cookies and retrives the url fine

但是当我在我的主程序中做这样的事情时：

users.getList()

这是同一个包中从Browser类调用GetPageContent方法的另一个类，事情很奇怪：大部分请求都没有附加cookie。该课程如下：

public class Check_List {
    private HashMap<String, String> dictionar = new HashMap<String, String>();

    public void getList(HashMap dictionar) {
        http_handler webpage = new http_handler();
    try {
            Iterator it = dictionar.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry pairs = (Map.Entry) it.next();
                System.out.println(pairs.getKey() + " = " + pairs.getValue());
                webpage.GetPageContent("http://example.com/profile.php?id="+pairs.getKey()+"&actionid=15");
                System.out.println("I'am on user: " + pairs.getValue());

Java：使用HttpURLConnection丢失Cookie

0 个答案: