Question

我正在尝试从RFID阅读器接收输出。制造商提供了允许用户通过TCP获取馈送的代码片段。（https://support.impinj.com/hc/en-us/articles/202755278-Speedway-Connect#samplecode）

注意：阅读器与我正在使用的电脑在同一个wifi网络上

我的问题是：为什么主机允许使用Java进行连接并在使用C＃时拒绝它？

我已经设法使用以下代码使用Java获得连接（我只需插入主机名和端口）

import java.io.BufferedReader;
import java.io.InputStreamReader;
public class SpeedwayConnectClient
{
public static void main(String[] args)
{
    // The IP address or hostname of your reader
    final String READER_HOSTNAME = "SpeedwayR-10-27-52";
    // The TCP port specified in Speedway Connect
    final int READER_PORT = 14150;

    try
    {
        // Create a TCP socket connection to the reader
        Socket s = new Socket(READER_HOSTNAME, READER_PORT);
        // Create a BufferedReader object from the socket connection
        BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
        // Receive data in an infinite loop
        while (true)
        {
            // Read one line at a time
            String line = br.readLine();
            // Print it to the screen
            System.out.println(line);
        }
    }
    catch (Exception e)
    {
        // An error has occurred
        System.out.println(e.getMessage());
    }
}
}

由于我无法使用Java（我已经设法在C＃中）使用Firebase连接，因此我决定切换到C＃。

我尝试使用来自同一网站的代码剪辑（C＃one ofcourse）：

结果是以下消息： “主持人拒绝了连接”

using System;
using System.Net.Sockets;
using System.IO;
namespace SpeedwayConnectClient
{
class Program
{
    static void Main(string[] args)
    {


        // The IP address or hostname of your reader
        const string READER_HOSTNAME = "SpeedwayR-10-27-52";
        // The TCP port specified in Speedway Connect
        const int READER_PORT = 14150;

        try
        {
            // Create a new TCPClient
            TcpClient client = new TcpClient();
            // Connect to the reader
            client.Connect(READER_HOSTNAME, READER_PORT);
            // Get a reference to the NetworkStream
            NetworkStream stream = client.GetStream();
            // Create a new StreamReader from the NetworkStream
            StreamReader streamReader = new StreamReader(stream);
            // Receive data in an infinite loop
            while (true)
            {
                // Read one line at a time
                string line = streamReader.ReadLine();
                // Print it to the screen
                Console.WriteLine(line);
            }
        }
        catch (Exception e)
        {
            // An error has occurred
            Console.WriteLine(e.Message);
        }
    }
}
}

TCP连接使用Java而不是C＃

0 个答案: