MyEclipse 编程问题

if (action != null && "save".equals(action)) {
    String PetsName = request.getParameter("PetsName");
    
    Pets pet = new Pets();
    pet.setPetsName(PetsName);
    PetsDao petsDao = new PetsDao();
    int count = PetsDao.insertPets(pet);
    if (count > 0)
     out
      .print("<script type='text/javascript'>alert('成功添加一条宠物信息。');location.replace('addPets.jsp');</script>");
    else
     out
      .print("<script type='text/javascript'>alert('添加失败。');history.go(-1);</script>");

这里int count = PetsDao.insertPets(pet); 括号里面的pet报错是什么原因， 该怎么改呢？知道的大哥大姐说下。