新手求助!!
按照书上写的运行顺序程序如下
package tw.com.javaworld.CH2;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class HelloServlet extends HttpServlet {
//Initialize global variables
public void init(ServletConfig config) throws ServletException {
super.init(config);
}
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=GB2312");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>CH2 - HelloServlet</title></head>");
out.println("<body>");
out.println(" Hello World <br>");
out.println("大家好");
out.println("</body>");
out.println("</html>");
out.close();
}
//Get Servlet information
public String getServletInfo() {
return "tw.com.javaworld.CH2.HelloSerlvet Information";
}
}
运行javac HelloServlet.java没有问题
但运行java HelloServlet时出现 Exception in thread "main" java.lang.noclassdefoundErrorException in thread "main" java.lang.NoClassDefFoundError: HelloServlet (wrong name: tw/com/javaworld/CH2/HelloServlet)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
请高手指点!
搜索更多相关主题的帖子:
void class request package public
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你写的是servlet,不是java application!!!
servlet怎么能用java命令来运行
建议再看一下书.
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谢谢!
是不是要设定web.xml才能在页面上执行!!
每个程序都要重新设定web.xml吗?
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应该写一个测试页面吧
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编译用javac没问题 在web.xml里配置好 打开你的服务器 并保证程序在规定位置以及程序具有规定的目录结构 再用你的浏览器来运行(其实用netBeans根本没那么麻烦)
[[italic] 本帖最后由 guoxhvip 于 2007-12-4 23:12 编辑 [/italic]]
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