jsp.jsp：

 
 

SimpleBean.java：

import java.io.*; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import javax.servlet.ServletInputStream; 

public class SimpleBean { 

public void doUpload(HttpServletRequest request) throws 
  IOException { 
PrintWriter pw = new PrintWriter( 
new BufferedWriter(new FileWriter("Demo.out"))); 
ServletInputStream in = request.getInputStream(); 
int i = in.read(); 
while (i != -1) { 
pw.print((char) i); 
i = in.read(); 
} 
pw.close(); 
  } 
} 

jsp放在examples/jsp下，class放在examplesWEB-INFclasses下

运行jsp出错：
An error occurred at line: 1 in the jsp file: /jsp/jsp.jsp

Generated servlet error:
D:JBuilder7jakarta-tomcat-4.0.3worklocalhostexamplesjspjsp$jsp.java:56: Class org.apache.jsp.SimpleBean not found.
                SimpleBean TheBean = null;
                ^


An error occurred at line: 1 in the jsp file: /jsp/jsp.jsp

Generated servlet error:
D:JBuilder7jakarta-tomcat-4.0.3worklocalhostexamplesjspjsp$jsp.java:59: Class org.apache.jsp.SimpleBean not found.
                    TheBean= (SimpleBean)
                              ^


An error occurred at line: 1 in the jsp file: /jsp/jsp.jsp

Generated servlet error:
D:JBuilder7jakarta-tomcat-4.0.3worklocalhostexamplesjspjsp$jsp.java:64: Class org.apache.jsp.SimpleBean not found.
                            TheBean = (SimpleBean) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "SimpleBean");

这是你的设置的问题

你可以再看看tomcat的设置

要不你要麻烦的话就用jbuilder吧

不能把jsp编译成class文件,用resin试试.

重新启动Tomcat

你把你的web-inf/classes加到classpath里去看一看