基于Socket实现Http类SSE效果

• SocketServer

public class TomcatServer {
   

    public static void main(String[] args) throws Exception {
   

        ServerSocket serverSocket = new ServerSocket(8080);

        while (true) {
   
            Socket socket = serverSocket.accept();
            new Thread(() -> {
   
                try {
   
                    InputStream is = socket.getInputStream();
                    OutputStream os = socket.getOutputStream();
                    while (true) {
   
                        //创建一个字节集合
                        List<Byte> contentBytes = new ArrayList<Byte>();
                        //先读取第一行
                        while (true) {
   
                            int byteData = is.read();
                            contentBytes.add((byte) byteData);
//                            System.out.println("byteToStringStr" + byteToStringStr(contentBytes));
                            if (byteData == 10 && (countBytes(contentBytes, (byte) 10) == 1)) {
   
                                //读取到了换行符
                                System.out.println("Http请求行：" + byteToString(contentBytes));
                            }
                            //继续判断是否是以 \r\n\r\n 结束，表示请求头结束了
                            if (endWithHeader(contentBytes)){
   
                                System.out.println("完整的Http协议请求: \n" + byteToString(contentBytes));
                               break;
                            }
                        }

                        writeSse(os);
                        //os.write(("已经到请求，共计字节数：" + contentBytes.size() + "\r\n").getBytes(StandardCharsets.UTF_8) );
                        //os.flush();
                    }
                } catch (Exception e) {
   
                    e.printStackTrace();
                }
            }).start();
        }
    }




    public static Integer countBytes(List<Byte> byteList,byte target) {
   
        Map<Byte, Integer> countMap = new HashMap<>();
        for (Byte b : byteList) {
   
            if (countMap.containsKey(b)) {
   
                countMap.put(b, countMap