部分代码:
try{...
if(area.equals("A") && text.trim().equals("")){
response.sendRedirect("/investigate/textnull.jsp");
}
...
}catch(IllegalStateException ex){
ex.getStackTrace();
}
抛出异常:
root cause :
java.lang.IllegalStateException
at org.apache.coyote.tomcat4.CoyoteResponseFacade.sendRedirect(CoyoteResponseFacade.java:338)
at org.apache.jsp.select_jsp._jspService(select_jsp.java:180)
...
我对这个异常作了catch,但是还是抓不到它,怎么会这样呢?在线等~~谢谢!
try{...
if(area.equals("A") && text.trim().equals("")){
response.sendRedirect("/investigate/textnull.jsp");
}
...
}catch(IllegalStateException ex){
ex.getStackTrace();
}
抛出异常:
root cause :
java.lang.IllegalStateException
at org.apache.coyote.tomcat4.CoyoteResponseFacade.sendRedirect(CoyoteResponseFacade.java:338)
at org.apache.jsp.select_jsp._jspService(select_jsp.java:180)
...
我对这个异常作了catch,但是还是抓不到它,怎么会这样呢?在线等~~谢谢!
try{
String sex = request.getParameter("sex");
session.setAttribute("sex",sex);
String age = request.getParameter("age");
session.setAttribute("age",age);
String education = request.getParameter("education");
session.setAttribute("education",education);
String fequency = request.getParameter("fequency");
session.setAttribute("fequency",fequency);
String incoming = request.getParameter("incoming");
session.setAttribute("incoming",incoming);
String[] favoriteMusic = request.getParameterValues("favoriteMusic");
session.setAttribute("favoriteMusic",favoriteMusic);
String area = request.getParameter("area");
session.setAttribute("area",area);
String text = request.getParameter("text");//文字信息
session.setAttribute("text",text);
String knownetRadio = request.getParameter("knownetRadio");
session.setAttribute("knownetRadio",knownetRadio);
String emcee = request.getParameter("emcee");
session.setAttribute("emcee",emcee);
String heardRadio = request.getParameter("heardRadio");
session.setAttribute("heardRadio",heardRadio);//第7题选A 则需填文字信息
if(area.equals("A") && text.trim().equals("")){
response.sendRedirect("/investigate/textnull.jsp");
}
//8跟10矛盾 作废
if((knownetRadio.equals("B") && heardRadio.equals("A"))
|| (knownetRadio.equals("B") && heardRadio.equals("B"))){
response.sendRedirect("/investigate/cancel.jsp");
}
//条件跳转到不同调查页面
if(heardRadio.equals("A")){
response.sendRedirect("/investigate/investigateA.jsp");
}
if(heardRadio.equals("C")){
response.sendRedirect("/investigate/investigateC.jsp");
}
if(heardRadio.equals("B")){
response.sendRedirect("/investigate/investigateB.jsp");
}
}catch(NullPointerException ex){
%><%=ex.getStackTrace()%>
<%
response.sendRedirect("/investigate/error.jsp");
}catch(IllegalStateException ex){
%><%=ex.getStackTrace()%>
<%
}
判断页面跳转部分