Java服务器,C#客户端。发送数据
因此,我在将数据从C#client发送到Java服务器时遇到了问题。连接正在进行,但是我想我在某处搞砸了 这是服务器端代码Java服务器,C#客户端。发送数据,c#,java,sockets,C#,Java,Sockets,因此,我在将数据从C#client发送到Java服务器时遇到了问题。连接正在进行,但是我想我在某处搞砸了 这是服务器端代码 package com.chris.net; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.ServerSocket; import java.net.Socket; public class Se
package com.chris.net;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class Server implements Runnable
{
private String serverName;
private boolean isRunning;
private ServerSocket serverSocket;
private Socket clientSocket;
public Server(String name, int port)
{
try
{
this.serverName = name;
this.serverSocket = new ServerSocket(port);
this.isRunning = true;
new Thread(this).start();
}
catch (IOException e)
{
e.printStackTrace();
}
}
private BufferedReader recv;
public void run()
{
while(isRunning)
{
try
{
clientSocket = serverSocket.accept();
System.out.println("Client Connected from " + clientSocket.getInetAddress().getHostAddress() + ":" + clientSocket.getPort());
recv = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
System.out.println("Data Recieved: " + recv.readLine());
clientSocket.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
}
这是客户端代码
lass TCPClient
{
private TcpClient Client;
private NetworkStream Stream;
private Byte[] Data;
public TCPClient(string address, int port)
{
Client = new TcpClient();
Client.Connect(address, port);
Stream = Client.GetStream();
SendData("Test Data");
while (Client.Connected)
{
}
}
public void SendData(string message)
{
Data = System.Text.Encoding.ASCII.GetBytes(message);
Stream.Write(Data, 0, Data.Length);
Console.WriteLine("Sent: {0}", message);
}
}
服务器注册了连接,客户端似乎认为它已经发送了数据,但是我无法判断是客户端没有发送数据还是服务器没有接收数据。考虑到控制台,Writeline只是打印出转换成字节的消息,我说不出来 Java TCP客户端:您应该分别使用
DataInputStream
和DataOutputStream
来发送和接收数据:
try
{
mOutStream = new DataOutputStream(mClientSocket.getOutputStream());
mInStream = new DataInputStream(mClientSocket.getInputStream());
}
catch (Exception e)
{
e.printStackTrace();
}
操作输出数据流(发送)的示例:
publicstaticvoidwritestring(DataOutputStream操作系统,字符串值)引发IOException{
if(值!=null){
字节[]数组=value.getBytes(字符集);
WriteBuffer(操作系统、阵列);
}否则{
写入(os,0);
}
}
公共静态void WriteBuffer(DataOutputStream os,字节[]数组)引发IOException{
如果((array!=null)&&&(array.length>0)&&(array.length最大缓冲区大小)){
ret=“”;
}否则{
字节[]缓冲区=新字节[len];
is.readfull(缓冲区,0,len);
ret=新字符串(缓冲区、字符集);
}
返回(ret);
}
公共静态int ReadInt(DataInputStream is)引发IOException{
int-ret=0;
字节[]intAsBytes=新字节[4];
//这将永远阻止。。。
is.readfull(单位为单位字节);
ret=ConvertByTestPoint(单位为单位字节);
返回(ret);
}
公共静态int ConvertBytesToInt(字节[]数组){
int-rv=0;
对于(int x=3;x>=0;x--)
{
长bv=数组[x];
如果(x<3&bv<0)//保持标志完整???
bv+=256;
//rv*=256;
rv=rvC#TCP客户端:(这更新了第一个答案),注意到在C#中使用BinaryWriter
与Java中的DataOutputStream
类似:
在代码中的某个地方定义MAX\u BUFFER\u SIZE=1024的常量(示例)
public static void WriteString(BinaryWriter os, string value) {
if (value!=null) {
byte[] array = System.Text.Encoding.Unicode.GetBytes(value);
WriteBuffer(os,array);
} else {
WriteInt(os,0);
}
}
public static void WriteBuffer(BinaryWriter os, byte[] array) {
if ((array!=null) && (array.Length > 0) && (array.Length < MAX_BUFFER_SIZE)) {
WriteInt(os,array.Length);
os.Write(array);
} else {
WriteInt(os,0);
}
}
public static void WriteInt(BinaryWriter outStream, int value) {
byte[] buffer = BitConverter.GetBytes(value);
// Array.Reverse(buffer);
outStream.Write(buffer);
}
公共静态void WriteString(BinaryWriter os,字符串值){
if(值!=null){
byte[]数组=System.Text.Encoding.Unicode.GetBytes(值);
WriteBuffer(操作系统、阵列);
}否则{
写入(os,0);
}
}
公共静态void WriteBuffer(二进制编写器操作系统,字节[]数组){
如果((array!=null)&&&(array.Length>0)&(array.Length
如果您想使用JSON,请参阅关于让Java发送消息将您的Java类型序列化为JSON和接收C#以反序列化为C#类型的优秀文章
摘自Java:
import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import com.google.gson.Gson;
public class GuyServer {
public static void main(String[] args)
throws IOException {
Gson gson = new Gson();
ServerSocket serverSocket = new ServerSocket(16001);
System.out.println("Listening on port 16001. "
+ "Press enter to quit "
+ "after the next connection.");
while (System.in.available() == 0) {
Socket socket = serverSocket.accept();
System.out.println("A client has connected."
+ " Sending a new Guy down the pipe.");
PrintWriter out =
new PrintWriter(socket.getOutputStream(),
true);
Guy guy = Guy.getRandomGuy();
String json = gson.toJson(guy);
out.print(json);
out.close();
socket.close();
}
System.out.println("Quitting...");
serverSocket.close();
}
}
C#结束:
C#可串行化类
using System;
using System.Collections.Generic;
[Serializable]
class Guy
{
public string Name { get; set; }
}
我对此进行了一些清理,以使其更易于理解。它不会编译,但你会明白的。这是用于从Java客户端发送数据的,而我是从C#客户端发送数据的。当使用DataInputStream(目前在谷歌上搜索)接收数据时,我将如何正确地进行处理请参阅我的下一个答案(为了方便而分开)。C与Java没有太大区别,只是在IO库中使用了不同的名称。在将所有这些放在一起之后,执行以下操作:WriteString(bw,“hello world”);结果是:h[]e[]l[]l[]o[]w[]o[]r[]l[]dHi,你有这个问题的最终解决方案吗?我有同样的问题,但我找不到正确的解决方案:(
import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import com.google.gson.Gson;
public class GuyServer {
public static void main(String[] args)
throws IOException {
Gson gson = new Gson();
ServerSocket serverSocket = new ServerSocket(16001);
System.out.println("Listening on port 16001. "
+ "Press enter to quit "
+ "after the next connection.");
while (System.in.available() == 0) {
Socket socket = serverSocket.accept();
System.out.println("A client has connected."
+ " Sending a new Guy down the pipe.");
PrintWriter out =
new PrintWriter(socket.getOutputStream(),
true);
Guy guy = Guy.getRandomGuy();
String json = gson.toJson(guy);
out.print(json);
out.close();
socket.close();
}
System.out.println("Quitting...");
serverSocket.close();
}
}
using System;
using System.IO;
using System.Net.Sockets;
using System.Web.Script.Serialization;
class GuyClient
{
static void Main(string[] args)
{
String input;
using (TcpClient tcpClient =
new TcpClient("localhost", 16001))
using (NetworkStream networkStream =
tcpClient.GetStream())
using (StreamReader streamReader =
new StreamReader(networkStream))
{
input = streamReader.ReadToEnd();
}
Console.WriteLine("Received data: " + input + "\n");
JavaScriptSerializer javaScriptSerializer =
new JavaScriptSerializer();
Guy bob = javaScriptSerializer
.Deserialize<Guy>(input) as Guy;
Console.WriteLine(bob.ToString());
}
}
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class Guy {
private String name;
public String getName() {
return name;
}
}
}
using System;
using System.Collections.Generic;
[Serializable]
class Guy
{
public string Name { get; set; }
}