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protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//String path = req.getContextPath() + "/";
String basePath = req.getScheme() + "://" + req.getServerName() + ":" + req.getServerPort();
/** 登录 */
String username = req.getParameter("username");
String password = req.getParameter("password");
String yzcode = req.getParameter("yzcode");
if ("".equals(username) || username == null || "".equals(password) || password == null) {
req.getSession().setAttribute("error", "用户名或密码不能为空!");
//req.getRequestDispatcher("/login.jsp").forward(req, resp);
resp.sendRedirect(basePath + "/login.html");
return;
}
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
String error = (String) request.getSession().getAttribute("error");
String show = "";
if (error == null)
error = " ";
else
show = "khkmsg.show('errorContent','"+error+"',false)";
request.getSession().removeAttribute("error");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
...(以下都是HTML标签了)