Question

servlet如何使jsp页面弹出删除成功对话框

public void doPost(HttpServletRequest request,HttpServletResponse
response)
throws ServletException,IOException
{
response.setContentType("text/html; charset=gb2312");
PrintWriter out =
response.getWriter();
response.sendRedirect("/index.jsp");
out.println("<script>alert(\"删除成功！\");
</script>");
}
本我有是这样 但没弹
这是jsp和servlet



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Answer 1

直接在servlet中定义js代码：
request.setAttribute("message","<script type='text/javascript' >alert('删除成功');</script>");

this.getServletConfig().getServletContext().getRequestDispatcher("/CFRT02.jsp")
.forward(request, response);
在返回页面中获取到message信息即可。
<form>
<table>
<tr>
<TH width="10%"
style="white-space: nowrap; text-align: center; color: green"><SPAN>${message}</SPAN></TH>
</tr>
</table>
</form>

Answer 2

ajax方便快捷，异步响应，去看看ajax