我正在制作一个简单的客户端服务器程序。当客户端发送字符串" start"时,我希望服务器开始执行一些代码。现在,我让客户端发送带有消息" start"的数据报包,服务器从数据包中获取字节缓冲区,将其转换为字符串,然后将该字符串值与字符串文字& #34;开始&#34 ;.显然,我做错了,因为我的代码永远不会进入if(sentence.equals(start){ System.out.println("ok");}
的for循环
我的代码:
public static void main(String args[]) throws IOException{
byte[] receiveData;
byte[] sendData;
DatagramSocket serverSocket = new DatagramSocket(2014);
while(true){
receiveData = new byte[15];
DatagramPacket frame = new DatagramPacket(receiveData, receiveData.length);
serverSocket.receive(frame);
InetAddress IPaddress = frame.getAddress();
System.out.println("INET " + IPaddress);
byte[] data;
int port = frame.getPort();
System.out.println("port " + port);
String sentence = new String(frame.getData());
String start = new String("start");
System.out.println("RECEIVED FROM CLIENT: " + sentence);
if(sentence.equals(start)){
System.out.println("ok");
}
}
}
答案 0 :(得分:2)
进行以下更改。
String sentence = new String(frame.getData(), 0, frame.getLength());