text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
connection.setRequestProperty("Connection", "Keep-Alive");

connection.setRequestProperty("User-agent",
        "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
connection.setRequestProperty("Authorization",
        "Authorization");
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍历所有的响应头字段
for (String key : map.keySet()) {
    Logger.getLogger("publish").info(key + "--->" + map.get(key));
}
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(
        connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
    result += line;
}
} catch (Exception e) {
System.out.println("发送GET请求出现异常！" + e);
Logger.getLogger("publish").error(e.getMessage(), e);
}
// 使用finally块来关闭输入 поток
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
Logger.getLogger("publish").error(e2.getMessage(), e2);
}
}
return result;