socket编程（刚开始的小demo）

Question

想在服务器端进行两数相加，但是代码运行有问题，下面贴码
1.Client.java
package exercise1;import java.io.*;
import java.net.*;public class Client { public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub Socket clientSocket = new Socket("192.168.1.103", 6789);
System.out.print("please input two numbers:");
String temp = new String();
BufferedReader inFromUser = new BufferedReader(new InputStreamReader(
System.in));
DataOutputStream outToServer = new DataOutputStream(
clientSocket.getOutputStream());
BufferedReader inFromServer = new BufferedReader(new InputStreamReader(
clientSocket.getInputStream()));
temp = inFromUser.readLine();
System.out.println(temp);
outToServer.writeBytes(temp);
// System.out.print("Server is calculating......"+"\n");
// System.out.print("the summary of two numbers is: ");
String result = inFromServer.readLine();
System.out.print(result); }
}2.Server.java
package exercise1;import java.io.*;
import java.net.*;public class Server { public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
ServerSocket welcomeSocket = new ServerSocket(6789);
int add1, add2, sum;
String sentence;
String[] seperateSentence;
while (true) { Socket connectSocket = welcomeSocket.accept();
BufferedReader inFromClient = new BufferedReader(
new InputStreamReader(connectSocket.getInputStream()));
DataOutputStream outToClient = new DataOutputStream(
connectSocket.getOutputStream());
sentence = inFromClient.readLine();
seperateSentence = sentence.split(" ");
add1 = Integer.parseInt(seperateSentence[0]);
add2 = Integer.parseInt(seperateSentence[1]);
sum = add1 + add2;
outToClient.write(sum); }
}}基本是照着入门的copy的，但跑起来有问题，求解

Answer 1

我对代码的数据流定义修改了一下。服务器：public class Socket_Server {
public static void main(String[] args) throws IOException
{
ServerSocket welcomeSocket = new ServerSocket(6789);
int add1, add2, sum;
String sentence;
String[] seperateSentence; while (true)
{
Socket connectSocket = welcomeSocket.accept();
//定义改了
BufferedReader inFromClient = new BufferedReader(
new InputStreamReader(connectSocket.getInputStream()));
PrintWriter outToClient = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(connectSocket.getOutputStream())),true); sentence = inFromClient.readLine();
seperateSentence = sentence.split(" ");
add1 = Integer.parseInt(seperateSentence[0]);
add2 = Integer.parseInt(seperateSentence[1]);
sum = add1 + add2;
outToClient.println(sum);
}
}
}
客户端代码：Socket clientSocket = new Socket("localhost", 6789);
System.out.print("please input two numbers:");
String temp = new String();
//定义改了
BufferedReader inFromUser = new BufferedReader(new InputStreamReader(
System.in)); BufferedReader inFromServer = new BufferedReader(new InputStreamReader(
clientSocket.getInputStream())); PrintWriter outToServer = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(clientSocket.getOutputStream())), true); temp = inFromUser.readLine(); outToServer.println(temp);
// System.out.print("Server is calculating......"+"\n");
// System.out.print("the summary of two numbers is: ");
String result = inFromServer.readLine();
System.out.print(result);
clientSocket.close();

Answer 2

不好意思，粘错了。public class Socket_Client
{
public static void main(String[] args) throws IOException
{
Socket clientSocket = new Socket("localhost", 6789);
System.out.print("please input two numbers:");
String temp = new String();
//定义改了
BufferedReader inFromUser = new BufferedReader(new InputStreamReader(
System.in)); BufferedReader inFromServer = new BufferedReader(new InputStreamReader(
clientSocket.getInputStream())); PrintWriter outToServer = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(clientSocket.getOutputStream())), true); temp = inFromUser.readLine(); outToServer.println(temp);
// System.out.print("Server is calculating......"+"\n");
// System.out.print("the summary of two numbers is: ");
String result = inFromServer.readLine();
System.out.print(result);
clientSocket.close();
}
}