java - 如何使 Java 服务器从变量而不是控制台输入中读取?
问题描述
我正在创建一个简单的套接字程序,它可以读取用户输入并将其存储在其变量中。它还允许向服务器发送消息。
客户端输入他们的详细信息(名称等),然后输入连接详细信息。我创建了发送这些变量的方法,但它们不能正常工作。
下面的预期结果:playerName
从客户端类存储到playerName
服务器类。实际结果:连接后的第一个输入存储到服务器的playerName
变量中
//服务器客户端类
public static String playerName = "Client";
public static void playerDetails() {
Scanner playerInfo = new Scanner(System.in);
System.out.println("Welcome! Please Enter Your Player Name:");
playerName = playerInfo.nextLine();
}
public void sendNameToServer(String pName) throws IOException {
if (this.clientSocket == null || this.output == null)
throw new SocketException("Socket does not exist");
this.output.writeObject(playerName);
}
public void sendMessageToServer(String msg) throws IOException {
if (this.clientSocket == null || this.output == null)
throw new SocketException("socket does not exist");
this.output.writeObject(msg);
}
public void runClient() {
try {
BufferedReader fromConsole = new BufferedReader(new InputStreamReader(System.in));
String message = null;
while (true) {
message = fromConsole.readLine();
handleUserInput(message);
if(message.equals("over"))
break;
}
// server client Manager Class
try {
this.out = new ObjectOutputStream(this.clientSocket.getOutputStream());
this.in = new ObjectInputStream(this.clientSocket.getInputStream());
}
String pName = null;
String msg = "";
//Name
pName = (String)this.in.readObject();
this.server.sendNameToServer(pName, this);
msg = (String)this.in.readObject();
this.server.handleMessagesFromClient(msg, this);
//Abstract Methods
public abstract class ServerAbstractComponents {
public abstract void handleMessagesFromClient(String msg, ServerClientManager clientmgr);
public abstract void sendMessageToClient(String msg, ServerClientManager clientmgr);
public abstract void sendNameToServer(String pName, ServerClientManager clientmgr);
//Server Class
public String playerName;
public synchronized void sendNameToServer(String pName, ServerClientManager client) {
playerName = pName;
}
public synchronized void handleMessagesFromClient(String msg, ServerClientManager client) {
// format the client message before displaying in server's terminal output.
String formattedMessage = String.format("[client %d] : %s", client.getClientID(), msg);
if(msg.equals(new String("test"))) {
System.out.println("your name is:" + playerName);
} else
display(formattedMessage);
}
解决方案
这是我的做法。
//Writes player Name as an object to the output Stream
System.out.println("Welcome, Enter your name :");
try {
Scanner playerInfo = new Scanner(System.in);
playerName2 = playerInfo.nextLine();
this.output.writeObject(playerName2);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} System.out.println("Welcome to The Game! " + playerName2);
//ServerClientManager 类
//Name2
try {
pName2 = (String)this.in.readObject();
} catch (ClassNotFoundException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
this.server.sendNameToServer2(pName2, this);
//抽象类
public abstract void sendNameToServer(String pName2, ServerClientManager clientmgr);
//服务器类
public String playerName2;
public synchronized void sendNameToServer2(String pName2, ServerClientManager client) {
client.playerName2 = pName2;
}
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