Java套接字从C＃读取字节

Question

I am trying to read a byte[] in my Java application sent from a C# application.

However, when I encode the string to byte[] in C# and reads it in Java, using the code below, I get all the characters but the last. Why is that?

Java receiving code:

int data = streamFromClient.read();
while(data != -1){
    char theChar = (char) data;
    data = streamFromClient.read();
    System.out.println("" + theChar);
}

C# sending code:

public void WriteMessage(string msg){

    byte[] msgBuffer = Encoding.Default.GetBytes(msg);
    sck.Send(msgBuffer, 0, msgBuffer.Length, 0);
}

Answer 1

While others already have provided a possible solution, i want to show how i would solve this.

int data;
while((data=streamFromClient.read()) != -1) {
  char theChar = (char) data;
  System.out.println("" + theChar);
}

I just feel like this approach would be a little more clear. Feel free to choose which you like better.

To clarify: There is an error in your receiving code. You read the last byte but you never process it. On every iteration you print out the value of the byte received in the previous iteration. So the last byte would be processed when data is -1 but you don't enter the loop so it isn't printed.

Answer 2

You need to read the data untill unless it is becomes -1 . so you need to move the reading statement inside infinite loop ie while(true) and comeout from it once if the result is -1 .

Try This:

 int data = -1;
 while(true){
 data=streamFromClient.read();
 if(data==-1)
 {     
    break;
 }
 char theChar = (char) data;     
 System.out.println("" + theChar);
 }

Answer 3

我以为您的while循环可能以某种方式被1次迭代关闭了，但是在我看来，您的C＃程序根本就没有发送所有字符。