Request&Response总结

1、获取相关头信息

代码：

Writer writer = response.getWriter();
   Enumeration<String> parameters = request.getHeaderNames();
   while (parameters.hasMoreElements()) {
       String parameter = parameters.nextElement();
       writer.write("header: " + parameter + ", content: " + request.getHeader(parameter)+"\n");
       writer.flush();
   }
   writer.close();

测试结果：

header: Host, content: localhost:8080
header: Connection, content: keep-alive
header: Cache-Control, content: max-age=0
header: User-Agent, content: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7
header: Accept, content: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
header: Accept-Encoding, content: gzip,deflate,sdch
header: Accept-Language, content: zh-CN,zh;q=0.8
header: Accept-Charset, content: GBK,utf-8;q=0.7,*;q=0.3