// 删除学院
private void del(HttpServletRequest request, HttpServletResponse response) throws IOException {
PrintWriter out = response.getWriter();
JsonBean j = new JsonBean();
String ids = request.getParameter("ids");
service.del(ids);
j.setSuccess(true);
JSONArray jsonArray = new JSONArray().fromObject(j);
String jsonS = jsonArray.toString();
String json = jsonS.substring(1, jsonS.lastIndexOf("]"));
out.write(json);
}
