日期:2014-05-20  浏览次数:20866 次

Struts中的一个问题
12:       <%
13:           String   name   =   (String)   request.getAttribute( "keyname ");
14:           out.println(name);
15:           String   keyid   =   (String)   request.getAttribute( "id ");
16:           out.println(keyid);
17:           int   id   =   Integer.parseInt(keyid);
18:           out.println(keyid);


java.lang.ClassCastException:   java.lang.Integer
org.apache.jsp.admin.SystemSetting.AddKeyWord_jsp._jspService(AddKeyWord_jsp.java:110)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:388)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:231)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:397)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


请问如何解决??


------解决方案--------------------
看样子.LZ错的应该是这一句:
String keyid = (String) request.getAttribute( "id ");

你在看看 request.setAttribute()时是存的String型的还是Integer.