JQuery.getJSON()方法調用Servlet的List數據，然後填充到下拉框

Jquery的強大不用贅語了，今天就分享一下用jquery來調用servelt集合數據，然後填充到下拉框中：

下面是servlet:/LoadPrdClassServlet中的doPost方法，集合數據轉換成JSON數據格式

 public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {

  response.setContentType("text/html;charset=UTF-8");
  prdClassService = new PrdClassService();
  List<PrdClass> prdList = prdClassService.getPrdList();
  StringBuffer strBuff = new StringBuffer("{\"PrdClass\":[");
  for (PrdClass prdClass : prdList) {
   strBuff.append("{\"prdClass\":\"").append(prdClass.getPrdClass()).append("\",\"prdName\":\"")
   .append(prdClass.getPrdName()).append("\"},");
  }
  strBuff.deleteCharAt(strBuff.lastIndexOf(","));
  strBuff.append("]}");
//System.out.println("strBuff字符串"+strBuff.toString()); 
         response.getWriter().print(strBuff.toString());
  
 }

前臺頁面js關鍵代碼：

<script type="text/javascript">
<!--
$(document).ready(function(){//填充產品大類目前優化
      $.getJSON("/LoadPrdClassServlet",function(data){
          var str = "<option value=''>請選擇</option>"
          $.each(data.PrdClass,function(i,items) {
              var tmp = "<option value="+items.prdClass+">"+items.prdName+"</option>";
              str = str+tmp;
          });
           $("#searchPrd").html(str)
      });
});
//-->
</script>

以上就是簡單實現了JS前臺調用java中的servlet，返回集合數據