服务器没有使用套接字编程发送java响应

ej83mcc0  于 2021-06-26  发布在  Java
关注(0)|答案(1)|浏览(301)

当我从客户机向服务器发送一些数据时,服务器没有给我响应。当我输入所有的数据,直到性别,光标在那里闪烁。它似乎希望用户插入更多的数据。它接受的数据和我插入的一样多。我在下面提供了我所有的代码
我的客户端代码是

import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;

public class Client {
    public static void main(String[] args) throws IOException {
        int age,carPrice,temp,temp1;
        String gender, s_temp;
        Scanner sc = new Scanner(System.in);
        Socket socket = new Socket("127.0.0.1",1342);
        Scanner sc1 = new Scanner(socket.getInputStream());
        PrintStream p = new PrintStream(socket.getOutputStream(), true);

        System.out.println("Enter Your Age: ");
        age = sc.nextInt();
        p.println(age);

        System.out.println("Enter the Cost of Vehicle: ");
        carPrice = sc.nextInt();
        p.println(carPrice);

        System.out.println("Enter Your Gender: ");
        gender = sc.next();
        p.println(gender);
        p.flush();

        temp = sc1.nextInt();
        System.out.println(temp);

        s_temp = sc1.next();
        System.out.println("The Gender is: " + s_temp);

        temp1 = sc1.nextInt();
        System.out.println(temp1);

        socket.close();
    }
}

我的服务器端代码:

public class Server {
    public static void main(String args[]) throws IOException, SQLException{
        ServerSocket ssocket = null;
        Socket socket = null;
        System.out.println("Server Listening.......*");
        ssocket=new ServerSocket(1342);
        while(true){
            try{
                socket = ssocket.accept();
                System.out.println("Connection Established.");
                ServerThread st = new ServerThread(socket);
                st.start();
            }
            catch(Exception e){
                System.out.println("Connection Error....");
            }
        }
    } 
}

class ServerThread extends Thread{
    Socket s1 =null;   
    Scanner sc = null;
    PrintStream p=null;

    int age,carPrice,temp;
    String gender,temp1;

    public ServerThread(Socket s){
        s1=s;
    }

    public void run(){
        try{
            sc = new Scanner(s1.getInputStream());
            p = new PrintStream(s1.getOutputStream(),true);

            age = sc.nextInt();
            gender = sc.next();
            carPrice = sc.nextInt();

            p.println(age*2);
            p.println(carPrice);
            p.println("Your gender is: " +gender);

            s1.close();
            System.out.println("Connection Closed....");
        }
        catch(Exception e){
        }
    }  
}

告诉我服务器为什么不发送响应。更正它以便它可以向客户端发送响应。

vfh0ocws

vfh0ocws1#

年龄,车价和性别输入,不读取发送命令。必须按顺序从客户端读取。
更改以下代码段。另外,添加 sc.nextLine() 在int read之后跳过换行符。
服务器

age = sc.nextInt();
carPrice = sc.nextInt();
sc.nextLine();  // skip newline
gender = sc.next();

... 而不是

age = sc.nextInt();
gender = sc.next();
carPrice = sc.nextInt();

在客户端,读取顺序与发送顺序不匹配。也 sc.next() 读一个单词,但你在发送性别时发送了许多单词。所以你必须改变方法 sc.nextLine() 客户

temp = sc1.nextInt();
System.out.println(temp);

temp1 = sc1.nextInt();
System.out.println(temp1);

sc1.nextLine();  // skip newline

s_temp = sc1.nextLine();
System.out.println("The Gender is: " + s_temp);

.. 而不是

temp = sc1.nextInt();
System.out.println(temp);

s_temp = sc1.next();
System.out.println("The Gender is: " + s_temp);

temp1 = sc1.nextInt();
System.out.println(temp1);

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