收到的 UDP 消息长度不正确 [英] Received UDP message has incorrect length

问题描述

我正在从 DatagramSocket 接收 UDP 消息，并尝试像这样解析消息:

I am recieving a UDP message from a DatagramSocket and am trying to parse the message like this:

this.broadSock.receive(recvPacket);

// Decode response
byte[] response = recvPacket.getData();
String strResp = new String(response);
String[] splitResp = strResp.split("\\s+");
log.debug("The String: " + strResp + " has the length " + strResp.length());

InetAddress lobbyAdress = InetAddress.getByName(splitResp[0].substring(1));
String portStr = splitResp[1];
int lobbyPort = Integer.parseInt(portStr);

我收到以下异常:

java.lang.NumberFormatException: For input string: "8080"

所以收到的字符串有问题，因为调试输出给了我:

So there is something wrong with the received String as the debug output gives me:

The String: /192.168.0.11 8080 has the length 256

有人知道为什么会这样吗?

Anybody an idea why this is happening?

推荐答案

提供了长度，您忽略了它.应该是:

The length is provided, and you're ignoring it. It should be:

String strResp = new String(packet.getData(), packet.getOffset(), packet.getLength());
String[] splitResp = strResp.split("\\s+");
log.debug("The response: " + strResp + " has the length " + packet.length());

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