我的jsp页面web/jsppages/addreport.jsp

<%if(request.getParameter("addReport") != null){ %>
<jsp:forward page="/addReportGuiControlServlet" />
<%} %>

<form action="addReport.jsp" name="myform" method="POST">
    <h4 class="desc">How many people are there in the queue?</h4>
    <div>   
        <input class="addreport" type="checkbox" id="isLast" name="isLast">
        <label class="desc">I'm the last of the queue</label>
    </div>
    <div class="container1">
        <input class="addreport" type="text" name="queueLen" id="queueLen" autocomplete="off">
    </div>
    <div class="container2">    
        <input class="addreport" type="submit" name="addReport" value="Add Report">
    </div>
</form>

我的servlet

@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
{

    RequestDispatcher rd = request.getRequestDispatcher("/jspPages/addReport.jsp");
    rd.forward(request, response);

}

我的web.xml

<servlet>
    <servlet-name>AddReportGuiControlServlet</servlet-name>
    <servlet-class>logic.boundary.web.controlgrafico.AddReportGuiControlServlet</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>AddReportGuiControlServlet</servlet-name>
    <url-pattern>/addReportGuiControlServlet</url-pattern>
</servlet-mapping>

错误的结果是一个无限循环。我认为问题出在参数“addreport”上，因为在servlet中我试图打印它，结果是！=null，但我不知道如何设置此值。