我正在尝试使用 Java 创建自己的 WebSocket 服务器。
当我的客户端连接时,我收到以下请求:
(14): GET / HTTP/1.1
(18): Upgrade: WebSocket
(19): Connection: Upgrade
(20): Host: localhost:8483
(24): Origin: http://localhost
(45): Sec-WebSocket-Key1: P3$04 H85Zf# 9 9d a0 x10[
(34): Sec-WebSocket-Key2: 416393 2 560Y
(0):
(括号中的数字、括号、冒号和之后的空格只是我为 System.out.println() 命令添加的内容)。括号中的数字是行的长度(以字节为单位)。
我首先使用这个函数处理请求:
public boolean processHandshake(int lineNumber, String line){
if(handshakeProcessed || lineNumber > 9 || lineNumber < 1){
return false;
}
switch(lineNumber){
case 1:{ handshakeGetLocation = line.replace("GET ", "").replace(" HTTP/1.1", ""); break; }
case 2:{ handshakeUpgrade = line.replace("Upgrade: ", ""); break; }
case 3:{ handshakeConnection = line.replace("Connection: ", ""); break; }
case 4:{ handshakeHost = line.replace("Host: : ", ""); break; }
case 5:{ handshakeOrigin = line.replace("Origin: ", ""); break; }
case 6:{ handshakeSecWebSocketKey1 = line.replace("Sec-WebSocket-Key1: ", ""); break; }
case 7:{ handshakeSecWebSocketKey2 = line.replace("Sec-WebSocket-Key2: ", ""); handshakeProcessed = false; break; }
case 8:{ handshakeProcessed = true; }
case 9:{ handshakeProcessed = true; }
}
return true;
}
现在,根据这篇文章并假设它是我需要处理的协议的第一个版本,我一直想知道如何处理商:
问题是,对于每个键,我需要将位数除以空格数。我一直在这样做:
private double calculateKeyReply(String key){
double numCount = key.replaceAll("[^0-9]", "").length();
double spaceCount = key.replaceAll("[^\\ ]", "").length();
System.out.println(numCount+"/"+spaceCount+"="+numCount/spaceCount);
return numCount/spaceCount;
}
并调用以下函数(replyHandshake()
):
String handshake;
handshake = "HTTP/1.1 101 WebSocket Protocol Handshake\n";
handshake += "Upgrade: "+handshakeUpgrade+"\n"; // handshakeUpgrade and the following variables are instance variables I set when I process the request
handshake += "Connection: "+handshakeConnection+"\n";
handshake += "Sec-WebSocket-Origin: "+handshakeOrigin+"\n";
handshake += "Sec-WebSocket-Location: "+handshakeOrigin.replace("http", "ws")+handshakeGetLocation+"\n";
handshake += "Sec-WebSocket-Protocol: sample\n";
// handshake += "\n";
String nums = calculateKeyReply(handshakeSecWebSocketKey1)+""+calculateKeyReply(handshakeSecWebSocketKey2);
MessageDigest md5Digestor = MessageDigest.getInstance("MD5");
String md5 = new String(md5Digestor.digest(nums.getBytes()));
handshake += md5;
return handshake;
然后,在其他地方:
out.println(replyHandshake());
难道我做错了什么?我正在使用最新版本的 Google Chrome 对其进行测试。
提前致谢!