Hello
When I include a servlet inside a tagfile then it works:
<jsp:include page="/controller"/>
But if a try to do the same in a tag that subclasses SimpleTagSupport
then tomcat throws the exception mentioned in the subject:
@Override
public void doTag() throws IOException, JspException {
HttpServletRequest request = (HttpServletRequest) ((PageContext) this
.getJspContext()).getRequest();
HttpServletResponse response = (HttpServletResponse) ((PageContext) this
.getJspContext()).getResponse();
RequestDispatcher requestDispatcher = request
.getRequestDispatcher("/controller");
try {
requestDispatcher.include(request, response);
}
catch (ServletException e) {
throw new JspException("Failed to include action", e);
}
}
Why does tomcat not react the same on these?
Btw. Im trying to invoke a controller in the middle of a JSP rather
than before the JSP because I want to
do component-level MVC instead of page-level MVC.
Full stacktrace is here:
exception
org.apache.jasper.JasperException: java.lang.IllegalStateException:
getOutputStream() has already been called for this response
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:515)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:405)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
root cause
java.lang.IllegalStateException: getOutputStream() has already been
called for this response
org.apache.catalina.connector.Response.getWriter(Response.java:619)
org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:188)
org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:118)
org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:77)
org.apache.jsp.index_jsp._jspService(index_jsp.java:99)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
Its a tomcat 5.5 i believe embedded in jboss 5.1.0ga.
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