错误如下:Error: 500
Internal Servlet Error:java.lang.NoClassDefFoundError: HelloWorld (wrong name: df/HelloWorld)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.findSystemClass(ClassLoader.java:620)
at com.sun.web.core.ServletLoader.loadClass(ServletLoader.java:73)
at com.sun.web.core.ServletLoader.loadServlet(ServletLoader.java:31)
at com.sun.web.core.ServletWrapper.loadServlet(ServletWrapper.java:91)
at com.sun.web.core.ServletWrapper.handleRequest(ServletWrapper.java:119)
at com.sun.web.core.InvokerServlet.service(InvokerServlet.java:168)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
at com.sun.web.core.ServletWrapper.handleRequest(ServletWrapper.java:155)
at com.sun.web.core.Context.handleRequest(Context.java:414)
at com.sun.web.server.ConnectionHandler.run(ConnectionHandler.java:139)
Internal Servlet Error:java.lang.NoClassDefFoundError: HelloWorld (wrong name: df/HelloWorld)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.findSystemClass(ClassLoader.java:620)
at com.sun.web.core.ServletLoader.loadClass(ServletLoader.java:73)
at com.sun.web.core.ServletLoader.loadServlet(ServletLoader.java:31)
at com.sun.web.core.ServletWrapper.loadServlet(ServletWrapper.java:91)
at com.sun.web.core.ServletWrapper.handleRequest(ServletWrapper.java:119)
at com.sun.web.core.InvokerServlet.service(InvokerServlet.java:168)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
at com.sun.web.core.ServletWrapper.handleRequest(ServletWrapper.java:155)
at com.sun.web.core.Context.handleRequest(Context.java:414)
at com.sun.web.server.ConnectionHandler.run(ConnectionHandler.java:139)
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import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class HelloWorld extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<body bgcolor=\"white\">");
out.println("<head>");
out.println("<tittle>"+"JSP简单程序!"+"</tittle>");
out.println("<body>");
out.println("<div align='center'>");
out.println("<p> </p>");
out.println("<p> </p>");
out.println("<p><font size='+4'>"+"HelloWorld!"+"</font>,/p>");
out.println("</div>");
out.println("/body>");
out.println("</html>");
}
}
java.io.IOException: Socket Closed
at java.net.PlainSocketImpl.getInputStream(PlainSocketImpl.java:429)
at java.net.Socket$1.run(Socket.java:335)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.Socket.getInputStream(Socket.java:332)
at com.sun.web.server.ConnectionHandler.run(ConnectionHandler.java:161)
thx!