(在线等待)编译通过,但是运行出错,出错信息是这样的 代码呢?主要问题是找不到Main()函数。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 将你javac 命令行设置的 classpath 的值,和java命令行classpath的值设置成一样,试试。 代码没有问题呀,我是win2000sever的;用的是textpad;设classpath时出错(上面错误信息);不设就能运行 怪了 安装jdk是:j2sdk-1_4_1_01-windows-i586.exe 因为接用自已的类才去设环境变量classpath,里头去没有设此内容我给它加上.;CLASSPATH=C:\j2sdk1.4.1_01\lib\dt.jar;C:\j2sdk1.4.1_01\lib\tools.jar;C:\j2sdk1.4.1_01\lib\NCSO.jar;C:\j2sdk1.4.1_01\jre\lib\charsets.jar;C:\j2sdk1.4.1_01\jre\lib\jaws.jar;C:\j2sdk1.4.1_01\jre\lib\jce.jar;C:\j2sdk1.4.1_01\jre\lib\jsse.jar;C:\j2sdk1.4.1_01\jre\lib\rt.jar;C:\j2sdk1.4.1_01\jre\libsunrsasign.jar就错了????????? 你试试javac -classpath %classpath%;./ class类名 to sgr_kk(丝瓜) 直接通过 import java.io.*;import java.net.*;import java.awt.*;import java.awt.event.*;public class MySocketServer{ public static void main(String args[]) { ServerService MyServer=new ServerService(8008,10); }}class ServiceThread extends Frame implements Runnable{ ServerService FatherListener; Socket ConnectedClient; Thread ConnectThread; Panel ListenerPanel; TextArea ServerMeg; public ServiceThread(ServerService sv,Socket s) { FatherListener = sv; ConnectedClient= s; ConnectThread = new Thread(this); setTitle("Answer Client"); setLayout(new BorderLayout()); ServerMeg = new TextArea(10,50); add("Center",ServerMeg); setResizable(false); pack(); show(); InetAddress ClientAddress = ConnectedClient.getInetAddress(); ServerMeg.appendText("Client connected"+" from\n"+ClientAddress.toString()+".\n"); } public void run() { try{ DataInputStream in=new DataInputStream( new BufferedInputStream(ConnectedClient.getInputStream())); PrintStream out=new PrintStream( new BufferedOutputStream(ConnectedClient.getOutputStream())); out.println("Hello!Welcome connect to our server!\n"); out.flush(); String s=in.readLine(); while(!s.equals("Bye")) { ServerMeg.appendText("Client 端输入的信息为:\n"+s); s=in.readLine(); } ConnectedClient.close(); } catch(Exception e){} FatherListener.addMeg("Client "+"Close."+"\n"); dispose(); }}class ServerService extends Frame{ ServerSocket m_sListener; TextArea ListenerMeg; public ServerService(int Port,int Count) { try{ m_sListener=new ServerSocket(Port,Count); setTitle("Server Listener"); this.addWindowListener(new WinAdpt()); setLayout(new BorderLayout()); ListenerMeg = new TextArea("监听服务已经启动\n",10,50); add("Center",ListenerMeg); setResizable(false); pack(); show(); while(true) { Socket Connected=m_sListener.accept(); InetAddress ClientAddress = Connected.getInetAddress(); ListenerMeg.appendText("Client "+"connected"+" from\n"+ClientAddress.toString()+".\n"); ServiceThread MyST=new ServiceThread(this,Connected); MyST.ConnectThread.start(); } } catch(IOException e){} } public void addMeg(String s) { ListenerMeg.appendText(s); }}class WinAdpt extends WindowAdapter{ public void windowClosing(WindowEvent e) { ((Frame)e.getWindow()).dispose(); System.exit(0); }} 说明你的程序运行了在main函数内System.out.println("program running");运行程序就会看到输出 你的程序执行到InetAddress ClientAddress = Connected.getInetAddress();在等待客户端的响应Connected如果每遇响应,程序就一直等待 重新编译一遍试一试,可能你上次编译时,并没有main,而加上main和其他东西时编译可能有错你没注意 谢谢sgr_kk(丝瓜)问题自已 已解决 大神啊,算法问题啊,一定拔刀相助啊 我想请教你们 Java如何调用C++写的dll? Java中如何在Java中计算两个日期相差的年数、月数和天数? 请问各位怎样用Java做象金山词霸那种屏幕取词效果 有什么办法可以获取指定Internet上的IP地址的DNS信息? 用Java Excel API能不能在程序中控制打印啊 如何在RMI中传递一个对象? 谁能帮我解决让我精神崩溃的中文问题? java错误找不到java.lang.Object,求救大佬们 高分求教 JMF问题 庆祝2星,散!
用的是textpad;设classpath时出错(上面错误信息);
不设就能运行 怪了
j2sdk-1_4_1_01-windows-i586.exe
才去设环境变量classpath,里头去没有设此内容
我给它加上.;
CLASSPATH=C:\j2sdk1.4.1_01\lib\dt.jar;C:\j2sdk1.4.1_01\lib\tools.jar;C:\j2sdk1.4.1_01\lib\NCSO.jar;C:\j2sdk1.4.1_01\jre\lib\charsets.jar;C:\j2sdk1.4.1_01\jre\lib\jaws.jar;C:\j2sdk1.4.1_01\jre\lib\jce.jar;C:\j2sdk1.4.1_01\jre\lib\jsse.jar;C:\j2sdk1.4.1_01\jre\lib\rt.jar;C:\j2sdk1.4.1_01\jre\libsunrsasign.jar
就错了?????????
javac -classpath %classpath%;./ class类名
直接通过
import java.net.*;
import java.awt.*;
import java.awt.event.*;
public class MySocketServer
{
public static void main(String args[])
{
ServerService MyServer=new ServerService(8008,10);
}
}
class ServiceThread extends Frame implements Runnable
{
ServerService FatherListener;
Socket ConnectedClient;
Thread ConnectThread;
Panel ListenerPanel;
TextArea ServerMeg;
public ServiceThread(ServerService sv,Socket s)
{
FatherListener = sv;
ConnectedClient= s;
ConnectThread = new Thread(this);
setTitle("Answer Client");
setLayout(new BorderLayout());
ServerMeg = new TextArea(10,50);
add("Center",ServerMeg);
setResizable(false);
pack();
show();
InetAddress ClientAddress = ConnectedClient.getInetAddress();
ServerMeg.appendText("Client connected"+" from\n"+ClientAddress.toString()+".\n");
}
public void run()
{
try{
DataInputStream in=new DataInputStream(
new BufferedInputStream(ConnectedClient.getInputStream()));
PrintStream out=new PrintStream(
new BufferedOutputStream(ConnectedClient.getOutputStream()));
out.println("Hello!Welcome connect to our server!\n");
out.flush();
String s=in.readLine();
while(!s.equals("Bye"))
{
ServerMeg.appendText("Client 端输入的信息为:\n"+s);
s=in.readLine();
}
ConnectedClient.close();
}
catch(Exception e){}
FatherListener.addMeg("Client "+"Close."+"\n");
dispose();
}
}
class ServerService extends Frame
{
ServerSocket m_sListener;
TextArea ListenerMeg;
public ServerService(int Port,int Count)
{
try{
m_sListener=new ServerSocket(Port,Count);
setTitle("Server Listener");
this.addWindowListener(new WinAdpt());
setLayout(new BorderLayout());
ListenerMeg = new TextArea("监听服务已经启动\n",10,50);
add("Center",ListenerMeg);
setResizable(false);
pack();
show();
while(true)
{
Socket Connected=m_sListener.accept();
InetAddress ClientAddress = Connected.getInetAddress();
ListenerMeg.appendText("Client "+"connected"+" from\n"+ClientAddress.toString()+".\n");
ServiceThread MyST=new ServiceThread(this,Connected);
MyST.ConnectThread.start();
}
}
catch(IOException e){}
}
public void addMeg(String s)
{
ListenerMeg.appendText(s);
}
}
class WinAdpt extends WindowAdapter
{
public void windowClosing(WindowEvent e)
{
((Frame)e.getWindow()).dispose();
System.exit(0);
}
}
在main函数内
System.out.println("program running");
运行程序就会看到输出
InetAddress ClientAddress = Connected.getInetAddress();
在等待客户端的响应Connected
如果每遇响应,程序就一直等待