Question

这样在servlet里调用js代码是对么？

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
String username=request.getParameter("name");
String password=request.getParameter("password");
StaffInfo staff=PersonDaoFactory.INSTANCE.CheckInfo(username,password) ;
if(staff.getStaff_num()!=null){
out.print("<script language='javascript'>window.close()</script>" );
}
else{
out.print("<script language='javascript'>alert('用户名或密码错误!')</script>");
RequestDispatcher dispatcher = request.getServletContext()
.getRequestDispatcher("/index.jsp");
dispatcher.forward(request, response);
}

}

Answer 1

对的，代码没有问题。
etException, IOException {
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
String username=request.getParameter("name");
String password=request.getParameter("password");
StaffInfo staff=PersonDaoFactory.INSTANCE.CheckInfo(username,password) ;
if(staff.getStaff_num()!=null){
out.print("<script language='javascript'>window.close()</script>" );
}
else{
out.print("<script language='javascript'>alert('用户名或密码错误!')</script>");
RequestDispatcher dispatcher = request.getServletContext()
.getRequestDispatcher("/index.jsp");
dispatcher.forward(request, response);
}

}