//增加
 public String addBj() throws Exception
 {
  bjManager.save(bj);
  response.setContentType("text/html;charset=UTF-8");
  response.setCharacterEncoding("UTF-8");//防止弹出的信息出现乱码
  //以上2句代码一定要写在获取out对象之前，否则提示信息为乱码

  PrintWriter ut = response.getWriter();
  out.println("");
  out.println("");
  out.println("  ");
  out.println("  ");
  out.println("alert(\"添加成功!\");location.replace('xs/test/findAllBj.action');");
  out.println("  ");
  out.println("");
  out.flush();
  out.close();
  
  return null;
 }