一个烦人关于 Servlet.service() for servlet jsp threw exception的有关问题！呀！

一个烦人关于 Servlet.service() for servlet jsp threw exception的问题！！！急呀！！！！
2008-9-27 8:21:23 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 11 in the jsp file: /zwreq.jsp
Abc cannot be resolved to a type
8: pZjMpsRequestLogPojo.setRdpwd("sssss");
9: pZjMpsRequestLogPojo.setRemark("sssss");
10: pZjMpsRequestLogPojo.setSign("sssss");
11: Abc abc = new Abc();
12: // String sss = abc.aa("sss");
13: // System.out.println(pZjMpsRequestLogPojo.getSign());
14: // String aa =(String) ZjPayReqManager().request(pZjMpsRequestLogPojo);


An error occurred at line: 11 in the jsp file: /zwreq.jsp
Abc cannot be resolved to a type
8: pZjMpsRequestLogPojo.setRdpwd("sssss");
9: pZjMpsRequestLogPojo.setRemark("sssss");
10: pZjMpsRequestLogPojo.setSign("sssss");
11: Abc abc = new Abc();
12: // String sss = abc.aa("sss");
13: // System.out.println(pZjMpsRequestLogPojo.getSign());
14: // String aa =(String) ZjPayReqManager().request(pZjMpsRequestLogPojo);
这个是abc类
public class Abc {
public String aa(String aa){
String cc = "ssssss";
return cc;

}
}


一new类就出这个错误真的很烦人不知道为什么

------解决方案--------------------

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