我有:
public class LoginAction extends Action
{
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
LoginForm lf=(LoginForm)form;
String act=mapping.getParameter();
if(lf.getUsername().equals( " "))
{
response.sendRedirect( "err.jsp ");
}
}
没有写全, 当if条件成立之后(我打出过),response.sendRedirect有错误,err.jsp存在.
错误如下:
The server encountered an internal error () that prevented it from fulfilling this request.
java.lang.IllegalStateException
org.apache.coyote.tomcat5.CoyoteResponseFacade.sendRedirect(CoyoteResponseFacade.java:399)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:385)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:231)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
请指教!
------解决方案--------------------
response.sendRedirect();并不马上就执行重定向，而是继续执行该命令后面的代码
sendRedirect之后马上return即可
------解决方案--------------------
最好在最后sendredirect，前面可以判断选择参数。
代码迷推荐解决方案：The server encountered an internal error () that prevented it from fulfilling this request.,http://www.daimami.com/search?q=317