我在eclipse中开发了一个java代码。我的代码使用server_ip从.txt文件中读取数据。我创建了代码的可执行 jar 文件，然后使用 launch4j 创建了一个 .exe 文件。如果我在笔记本电脑上运行，.exe 文件会显示数据，但如果我在其他电脑上运行，它不会显示任何数据。然后它显示空点异常。我的操作系统是 Windows 7-32 位。我在这里给出我的代码。请给我解决方案。
打包远程数据；
import java.awt.*;
导入java.net。; 导入 java.io。;
public class remotedataread extends Frame
{
public static void main(String[] args)
throws InterruptedException, IOException{
BufferedReader br = null;
TextArea FileText =
new TextArea(" Content of the File \'temp1.txt\' :");
try
{
URL url =
new URL("file://server_ip/path_file.txt");
InputStream is = url.openStream();
br = new BufferedReader(new InputStreamReader(is));
/* String line = null;
while (true) {
line = br.readLine();
if (line == null) {
//wait until there is more of the file for us to read
Thread.sleep(1000);
}
else {
System.out.println(line);
}
}*/
}
catch (MalformedURLException e)
{
System.out.println("Bad URL");
}
catch (IOException e)
{
System.out.println("IO Error : "+e.getMessage());
}
FileText.setBackground(Color.white);
FileText.append(String.valueOf('\n'));
Frame f = new Frame("server data");
f.setSize(200,200);
f.add(FileText);
f.setVisible(true);
try
{
String s;
s=null;
boolean eof = false;
//while (true) {
s = br.readLine();
System.out.println("Time Temperature");
while( !eof )
{
FileText.append(s + String.valueOf('\n'));
try
{
s = br.readLine();
if ( s == null )
{
// eof = true;
// br.close();
Thread.sleep(1000);
}
else{
//System.out.println("Time Temperature");
System.out.println(s);
}
}
catch (EOFException eo)
{
eof = true;
}
catch (IOException e)
{
System.out.println("IO Error : "+e.getMessage());
}
}
//}
}
catch (IOException e)
{
System.out.println("IO Error : "+e.getMessage());
}
}
}