Question

我用Java构建了一个简单的服务器套接字，并使用python客户端套接字与之通信。认为响应良好，因此connection.shutdown(socket.SHUT_RDWR)总是失败，并显示错误[Errno 57] Socket is not connected。由于客户端可以从服务器获取响应，因此我认为套接字已经连接。但是为什么经常说插座未连接呢？我很困惑。有任何想法吗？非常感谢！

我的客户端（在Python3中）：

url = '/import_image'
headers = [
    b"PUT " + bytes(url, "UTF-8") + b" HTTP/1.0",
    b'Content-Type: application/octet-stream',
    b"Content-Length: " + bytes("hello world", "UTF-8"),
    b"Connection: close",
    b""
]

for h in headers:
    connection.sendall(h)
    connection.sendall(b"\r\n")

response = HTTPResponse(connection)
response.begin()
if response.status != 200:
    raise Exception("Received HTTP response {0}: {1}".format(response.status, response.reason))
else:
    print(response.read())

try:
    # This will fail with the error: [Errno 57] Socket is not connected
    connection.shutdown(socket.SHUT_RDWR)
except Exception as e:
    print(e)

我的服务器套接字（在Java8中）：

    ServerSocket serverSocket = new ServerSocket(Defs.SOCKET_SERVER_PORT); // port 8888
    try {
            while (true) {
                log.info("Waiting for connection on port " + Defs.SOCKET_SERVER_PORT);
                Socket socket = serverSocket.accept();
                log.info("Connection received. Handling request...");
                BufferedWriter out = new BufferedWriter(new OutputStreamWriter(
                        new BufferedOutputStream(socket.getOutputStream()), "UTF-8"));
                String header = "HTTP/1.0 200 OK\r\n" +
                        "Content-Type: text/html\r\n" +
                        "Content-Length: ";
                String output = "<html><head><title>Example</title></head><body><p>success!</p></body></html>";
                out.write(header + output.length() + "\r\n\r\n" + output);
                out.flush();
                out.close();
            }
        } finally {
            serverSocket.close();
        }

Answer 1

Python客户端对connection.shutdown()的调用很可能引发错误，因为Java服务器已经关闭了连接，而shutdown()对此并不满意。

对我有用的是调用“ connection.close（）”而不是“ connection.shutdown（）”。调用close时没有看到错误。

python套接字-[Errno 57]尽管响应良好，但未连接套接字

1 个答案: