This time I will bring you jQuery Detailed explanation of the steps for adding values to sub-elements. What are the precautions for adding values to sub-elements with jQuery? The following is a practical case. Let’s take a look. take a look.
##1. Define the
<p> <span>科室:</span> <select> </select> </p>
2. Write js statements:
<script> $(function () { var dname = $(".dept-name-show").eq(0);//选定<select>标签 var url = "${pageContext.request.contextPath}/getDepts.do";//请求路径 $(".dept-name-show").click(function () { $.get( url, function (res) { var len = res.length; var op = dname.children().length; if (op < len) { var pp = "<option>"; for (var i = 0; i < len; i++) { dname.append(pp); dname.children().eq(i).text(res[i].name); } } } ) }) }) </script>
3. Write the corresponding request statement:
List<dept> deptList=null; @RequestMapping(value = "/getDepts",method = {RequestMethod.GET}) public void getDepts(HttpServletResponse response) throws IOException { response.setCharacterEncoding("utf-8"); response.setContentType("text/json;charset=utf-8"); if (deptList == null){ deptList = deptService.findAllDepts(); }else { String res=JSON.toJSONString(deptList); response.getWriter().write(res); } }</dept>
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