HttpClient保持登录cookie状态,继续操作

        import org.apache.commons.httpclient.Cookie;
        import org.apache.commons.httpclient.HttpClient;
        import org.apache.commons.httpclient.HttpException;
        import org.apache.commons.httpclient.NameValuePair;
        import org.apache.commons.httpclient.cookie.CookiePolicy;
        import org.apache.commons.httpclient.methods.GetMethod;
        import org.apache.commons.httpclient.methods.PostMethod;

        HttpClient httpClient = new HttpClient();

        // 模拟登陆，按实际服务器端要求选用 Post 或 Get 请求方式
        PostMethod postMethod = new PostMethod("http://123.com");

        // 设置登陆时要求的信息，一般就用户名和密码，验证码自己处理了
        NameValuePair[] data = { new NameValuePair("username", "20169065"),
                new NameValuePair("password", "Q123123q")

        };
        postMethod.setRequestBody(data);
        String tmpcookies = "";
        try {
            // 设置 HttpClient 接收 Cookie,用与浏览器一样的策略
            httpClient.getParams().setCookiePolicy(
                    CookiePolicy.BROWSER_COMPATIBILITY);
            httpClient.executeMethod(postMethod);

            // 获得登陆后的 Cookie
            Cookie[] cookies = httpClient.getState().getCookies();
            tmpcookies = "";
            for (Cookie c : cookies) {
                tmpcookies += c.toString() + ";";
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("登录成功:" + loginUrl);
        System.out.println("登录成功用户名:" + "20169065");
        System.out.println("登录成功密码:" + "Q123123q");
        ------------------------------------------------------------
        GetMethod getMethod = new GetMethod("http://123.com");
        getMethod.setRequestHeader("Cookie", tmpcookies);
        // 例如，referer 从哪里来的，UA 像搜索引擎都会表名自己是谁，无良搜索引擎除外
        postMethod.setRequestHeader("Referer", "http://123.com");
        postMethod.setRequestHeader("User-Agent", "Unmi Spot");
        httpClient.executeMethod(getMethod);
        System.out.println(getMethod.getResponseBodyAsString());;