你好,我正在使用此方法来读取消息:
public String readMessage() {
int read = -1;
byte[] buffer = new byte[5*1024];
byte[] redData;
try {
while ((read = this.session.getInputStream().read(buffer)) > -1) {
redData = new byte[read];
System.arraycopy(buffer, 0, redData, 0, read);
return new String(redData,"UTF-8");
}
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
当我写“你好,你今天好吗?”之类的话时
响应(精确格式,包括这些新行):
[/127.0.0.1:54930]:
[/127.0.0.1:54930]: are
[/127.0.0.1:54930]: you
[/127.0.0.1:54930]: today?
这就是我读取聊天消息的方式,首先我检查请求了哪个数据包,如果数据包类型为0,那么我获取数据包处理程序的实例,并将客户端对象传递给聊天处理数据包,该数据包将在此处读取消息,例如这个:
public void startClientService() throws IOException {
while(true) {
int packetType = this.in.read();
packets.getPacket(packetType);
}
}
public void getPacket(int packetType) {
switch (packetType) {
case 0:
chat.processPacket(this.client);
break;
}
}
以及聊天数据包:
@Override
public void processPacket(Session c) {
String clientMessage = c.readMessage();
System.out.println("[" + c.getStream().getRemoteSocketAddress() + "]: " + clientMessage.toString());
}
然后打印消息发生。
为什么它要换行打印部分消息?甚至没有完整的消息。
这是我的客户:
public static void main(String[] args) throws UnknownHostException, IOException {
Socket socket = new Socket("127.0.0.1", 43594);
Scanner r = new Scanner(System.in);
PrintWriter out = new PrintWriter(socket.getOutputStream());
String input;
while(true) {
input = r.next();
if (input != null) {
sendMessage(input, out);
}
}
}
public static void sendMessage(String message, PrintWriter out) {
out.write(0);
out.flush();
out.write(message + "\n");
out.flush();
}
谢谢。
session :
public class Session extends Thread implements Runnable {
private Socket session;
private Client client;
private PrintWriter out;
private BufferedReader in;
private PacketHandler packets;
public Session(Socket session) {
this.session = session;
this.client = new Client(this);
try {
this.setStream();
} catch (IOException e) {
e.printStackTrace();
}
this.packets = new PacketHandler(this);
System.out.println("[New session created]: " + session.getRemoteSocketAddress());
}
public void run() {
try {
this.startClientService();
} catch (IOException e) {
e.printStackTrace();
}
}
public Socket getStream() {
return this.session;
}
public void setStream() throws IOException {
this.out = new PrintWriter(this.session.getOutputStream());
this.in = new BufferedReader(new InputStreamReader(this.session.getInputStream()));
}
public Client getClient() {
return this.client;
}
public String readMessage() {
int read = -1;
byte[] buffer = new byte[5*1024];
byte[] redData;
try {
while ((read = this.session.getInputStream().read(buffer)) > -1) {
redData = new byte[read];
System.arraycopy(buffer, 0, redData, 0, read);
return new String(redData,"UTF-8");
}
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
public void startClientService() throws IOException {
while(true) {
int packetType = this.in.read();
packets.getPacket(packetType);
}
}
public void destruct() throws IOException {
this.session.close();
System.out.println("Session killed");
}
}
最佳答案
看起来您一从流中获取一些数据就返回。
while ((read = this.session.getInputStream().read(buffer)) > -1) {
redData = new byte[read];
System.arraycopy(buffer, 0, redData, 0, read);
return new String(redData,"UTF-8");
}
完整读取数据并从中创建一个字符串对象并返回
BufferedReader br = new BufferedReader(new InputStreamReader(this.session.getInputStream()));
String msg = br.readLine();
br.close();
return msg;
试试这个方法。这将为您提供整个数据到缓冲区,并可以作为字符串行返回。不需要循环
关于Java 从套接字读取消息未发送完整消息,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21683191/