这次给大家带来在jquery的请求ajax与在servlet中的响应ajax,在jquery的请求ajax与在servlet中的响应ajax的注意事项有哪些,下面就是实战案例,一起来看一下。
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:
在jquery中写ajax请求:
<script> $(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>" + data[i]['name'] + "<td>" + data[i]['price'] + "元" + ""; } $(".trtd4").after(str); }else{ } }, error: function(data){ } }) }); } </script>
jsp部分:
<p> </p><p> </p>
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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 orderList = new ArrayList(); List<evaluate> queryEvaluateList = new ArrayList(); orderList = orderServiceImpl.queryOrderList(ownerId, null, null, null, null, null); List<map>> workers = new ArrayList<map>>(); for(int i = 0;i order = new HashMap<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)); }</allocation></string></map></map></evaluate>
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