浅谈ajax在jquery中的请求和servlet中的响应

在jsp中，首先，你需要导入jquery的架包：

获取可返回站点的根路径：

<% 
  String path = request.getContextPath(); 
%> 

在jquery中写ajax请求：

<script type=\"text/javascript\">
     $(function(){
        $(\".B\").click(function(){
        $.ajax({
            type: \"GET\",
                     //对应servlet中的方法
            url: \"<%=path%>\" + \"/queryEvaluateByuserId.do\",
                     //返回是json数据
            dataType: \"json\",
            async:false,
           data:{
            },
            success: function(data){
              str = \"\";
               if(data != null){
                               //循环表单列表
                 for (var i in data)
                  {
                     var num = parseInt(i) + 1 ;                         
                    str +=\"<tr><td>\" + num + \"</td><td>\" 
                    + data[i][\'name\'] + \"</td><td>\"
                    + data[i][\'price\'] + \"元</td>\" 
                    + \"</tr>\";
                  }
                 $(\".trtd4\").after(str);
               }else{
                 
               }
               
            },
            error: function(data){
            }
          }) 
      });
     }
</script>

jsp部分：

<div class=\"tab-pane\" id=\"B\" style=\"text-align:center;\"> 
          <div class=\"row marg\" > 
            <table border=\"2 \" style=\"width:80%;text-align:center;\"> 
              <tr class=\"trtd4\"> 
                <th>序号</th> 
                <th>业主名</th> 
                <th>金额</th> 
              </tr>              
            </table> 
          </div> 
        </div> 

在servlet中用到了阿里巴巴的快速转换json的包com.alibaba.fastjson.JSON：

private void queryEvaluateByuserId(HttpServletRequest request, HttpServletResponse response) throws SQLException, IOException, ServletException{
			HttpSession session=request.getSession();
			request.setCharacterEncoding(\"UTF-8\");
			response.setContentType(\"text/html\");
			response.setCharacterEncoding(\"UTF-8\");
			Cookie[] cookies = request.getCookies();
			int ownerId = 0;
			for (int i = 0; i < cookies.length; i++) {
	      Cookie cookie = cookies[i];
	      if (cookie.getName().equals(\"ownerId\")) {
	      	ownerId = Integer.parseInt(cookie.getValue()); 
	      }
			}
			List<Order> orderList = new ArrayList<>();
			List<Evaluate> queryEvaluateList = new ArrayList<>();
			orderList = orderServiceImpl.queryOrderList(ownerId, null, null, null, null, null);
			List<Map<String, String>> workers = new ArrayList<Map<String, String>>(); 
			for(int i = 0;i < orderList.size();i++){
				Map<String,String> order = new HashMap<String, String>();
				order.put(\"description\", orderList.get(i).getDescription());
				order.put(\"name\", orderList.get(i).getOwnerName());
				System.out.println(orderList.get(i).getDescription());
				order.put(\"type\",orderList.get(i).getTypeName());
				queryEvaluateList = orderServiceImpl.queryEvaluateListByUserId(orderList.get(i).getId());
				order.put(\"comment\", queryEvaluateList.get(0).getComment());
				List<Allocation> allocation = orderServiceImpl.queryAllocationByOrderId(orderList.get(i).getId());
				order.put(\"price\", String.valueOf(allocation.get(0).getPrice()));
				 System.out.println(order);
				workers.add(order);
			}
            //将map键值对转换成json，传给jsp
            response.getOutputStream().write(JSON.toJSONBytes(workers));
		}

以上这篇浅谈ajax在jquery中的请求和servlet中的响应就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。