响应协议
1 响应信息
// 响应首行 HTTP/1.1 200 OK // 响应头信息 Server: Apache-Coyote/1.1 Content-Type: text/html;charset=UTF-8 Content-Length: 777 Date: Sat, 09 Feb 2012 18:30:52 GMT // 空行,下面是响应正文,即HTML代码 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="http://localhost:80/hello/"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> This is my JSP page. <br> <form method="post" action="index.jsp"> <input type="text" name="username" /><br/> <input type="submit" value="SUBMIT"/> </form> </body> </html>
l HTTP/1.1 200 OK:响应协议为HTTP1.1,状态码为200,表示请求成功,OK是对状态码的解释;
l Server: Apache-Coyote/1.1:这是服务器的版本信息;
l Content-Type: text/html;charset=UTF-8:请求正文使用的编码为UTF-8;
l Content-Length: 777:响应的内容为777字节;
l Set-Cookie: JSESSIONID=C97E2B4C55553EAB46079A4F263435A4; Path=/hello:响应给客户端的Cookie;
l Date: Sat, 09 Feb 2012 18:30:52 GMT:响应的时间这个时间是美国时间,这可能会有8小时的时区差;
常见状态码:
l 404 not found:没有找到;
l 500 error:找到了,但内部出错;
l 200 ok:成功!
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