使用JavaScript和JSP重定向到另一个页面

Question

注册后，我将尝试使用JSP或JavaScript将用户重定向到我的登录页面。

我应该提到注册表单调用的是同一页面，当我说时window.location，glassfish会由于找不到资源而引发错误。

                                   {
    if(request.getParameter("submit")!=null)
                   {
        String uname=request.getParameter("txtusername");
        String password=request.getParameter("txtpassword");
        String mail=request.getParameter("txtemail");
        String dob=request.getParameter("dob");
        String city=request.getParameter("txtcity");
        String state=request.getParameter("txtstate");
        String country=request.getParameter("txtcountry");
        String address=request.getParameter("txtstreetaddress");
        String scity=request.getParameter("txtscity");
        String sstate=request.getParameter("txtsstate");
        String scountry=request.getParameter("txtscountry");
        String saddress=request.getParameter("txtsaddress");
        String mobile=request.getParameter("txtno");
        String gender=request.getParameter("rdbgender");
             adminClasses.user u= new adminClasses.user(0, uname, password, mail, dob, city, state, country, address, scity, sstate, scountry, saddress, mobile, gender);
              int result=adminClasses.userfunctions.addNewUser(u);
                    %>
                    <script>
                        var res=<%=result%>;
                        if(res==0)
                            {
                               window.alert("Registration Unsuccessful");
                            }
                            else
                                {
                                    window.alert("Resgistration Successful!Click Ok to Sign in");
                                    window.location="signin.jsp";
                                }
                    </script>
                    <%                  
                                           }
                              }
       catch (Exception e)
                                     {
                    out.println(e.getMessage());
                   }

Answer 1

我认为您可以这样：

...
int result = adminClasses.userfunctions.addNewUser(u);

if (result == 0) {
    request.getRequestDispatcher("signupSuccess.jsp").forward(request, response);
}
...

它将result在服务器端评估，然后根据result，将转发到signupSuccess.jsp页面-
即URL将保持不变，但响应将包括成功页面的评估内容。