servlet中判断JSP中按钮问题

最新推荐文章于 2023-02-28 23:16:28 发布

iteye_1315

最新推荐文章于 2023-02-28 23:16:28 发布

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文章标签： java

本文详细介绍了如何使用JSP页面实现前端提交申请表单的处理逻辑，并通过Servlet接收并判断不同按钮触发的事件，进而执行相应的操作。

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前台JSP页面代码：

<form action="http://localhost:8888/LN/SubmitServlet" method=post>  <div class="bigTitle">提交申请</div>  <hr class="line"/>  <div class="btn"> <input name="btnSave" type="submit" value="保存" /> <input name="btnSubmit" type="submit" value="提交" /> <input name="btnClose" type="submit" value="关闭" /> </div>注意type为submit。

servlet中判断代码：

public class SubmitServlet extends HttpServlet { /** * */ private static final long serialVersionUID = 1L; //PermissiontoApplyBusinessUnit EntityPAB=new PermissiontoApplyBusinessUnit(); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String iButton1 = (String)request.getParameter("btnSave"); String iButton2 = (String)request.getParameter("btnSubmit"); String iButton3 = (String)request.getParameter("btnClose"); // request.setAttribute("str", iButton); //System.out.print(iButton); if(iButton1 != null){ //request.setAttribute("str1", "1"); System.out.println("保存"); } else if (iButton2 != null){ //request.setAttribute("str1", "2"); System.out.println("提交"); } else if (iButton3 != null){ //request.setAttribute("str1", "2"); System.out.println("关闭"); } request.getRequestDispatcher("/ABUPSubmitApplications.jsp").forward(request, response); } public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{ doGet(request,response); } }