從jsp頁面映射servlet時如何重用servlet中的代碼

Question

我有兩個來自jsp頁面的鏈接，該鏈接映射了相同的servlet（ViewEmployee.java）。我想使用相同的doget方法來獲取employeee數據，但只有區別將被重定向到不同的jsp頁面

映射servlet的jsp代碼

修改員工

查看員工

我要放置if條件的servlet代碼

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws   ServletException, IOException {

    user=new UserDAO();

    HttpSession session=request.getSession(true);
    int empid=(int)session.getAttribute("EMPID");
    employeeBean=user.fetchEmployeeDetails(empid);
    request.setAttribute("employeebean", employeeBean);
    //I want to put the if condition and want to redirect to different jsp page according to the link clicked by the user
    request.getRequestDispatcher("com_viewuser.jsp").forward(request, response);

    }

如果要區分兩者，我應該怎么辦

Answer 1

將隱藏的變量從JSP傳遞到Servlet 。 每頁的變量值應該唯一

在Servlet檢查該變量值，例如：

if(val==1) {     
    redirect to page 1;
}
if(val==2) {
    redirect to page 2;
}