//使用json-lib将PageBean对象转为json,通过输出流写回页面中
//JSONObject---将单一对象转为json
//JSONArray----将数组或者集合对象转为json
注:需要将引用类型的去掉,否则会报错,循环引用
public String findAll() throws IOException{
List<BcStaff> list=staffService.findAll();
JsonConfig config = new JsonConfig();
config.setExcludes(new String[]{"qpWorkbills","qpNoticebills","qpNoticebills_1","bcDecidedzones","qpWorkbills_1","bcDecidedzones_1"});
String listString = JSONArray.fromObject(list,config).toString();
ServletActionContext.getResponse().setContentType("text/html;charset=utf-8");
ServletActionContext.getResponse().getWriter().print(listString);
return NONE;
}