Java Js实现导出csv

 $.ajax({
     type: 'GET',
     async: false,
     url: '../../api/screening/exportTable?seriesIndex=' + param.seriesIndex +'&dataIndex=' + param.dataIndex + '&package1=' + mode,
     success: function(data) {
         JSONToCSVConvertor(JSON.stringify(data), title, true);
     },
     error: function(XMLHttpRequest) {
         $.messager.show({msg:XMLHttpRequest});
     }
 })

网上抄的方法

var uri = 'data:text/csv;charset=utf-8,\uFEFF' + encodeURI(CSV);解决中文乱码

 function JSONToCSVConvertor(JSONData, ReportTitle, ShowLabel) {
     //If JSONData is not an object then JSON.parse will parse the JSON string in an Object
     var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;
     var CSV = '';
     //This condition will generate the Label/Header
     if (ShowLabel) {
         var row = "";
         //This loop will extract the label from 1st index of on array
         for (var index in arrData[0]) {
             //Now convert each value to string and comma-seprated
             row += index + ',';
         }
         row = row.slice(0, -1);
         //append Label row with line break
         CSV += row + '\r\n';
     }
     //1st loop is to extract each row
     for (var i = 0; i < arrData.length; i++) {
         var row = "";
         //2nd loop will extract each column and convert it in string comma-seprated
         for (var index in arrData[i]) {
             row += '"' + arrData[i][index] + '",';
         }
         row.slice(0, row.length - 1);
         //add a line break after each row
         CSV += row + '\r\n';
     }
     if (CSV == '') {
         alert("Invalid data");
         return;
     }
     //Generate a file name
     var fileName = "导出表格_";
     //this will remove the blank-spaces from the title and replace it with an underscore
     fileName += ReportTitle.replace(/ /g, "_");
     //Initialize file format you want csv or xls
     var uri = 'data:text/csv;charset=utf-8,\uFEFF' + encodeURI(CSV);
     // Now the little tricky part.
     // you can use either>> window.open(uri);
     // but this will not work in some browsers
     // or you will not get the correct file extension
     //this trick will generate a temp <a /> tag
     var link = document.createElement("a");
     link.href = uri;
     //set the visibility hidden so it will not effect on your web-layout
     link.style = "visibility:hidden";
     link.download = fileName + ".csv";
      //this part will append the anchor tag and remove it after automatic click
     document.body.appendChild(link);
     link.click();
     document.body.removeChild(link);
 }

后台生产JSONArray

 @RequestMapping(value = "/exportTable", method = RequestMethod.GET)
     public @ResponseBody JSONArray exportTable(HttpServletRequest request,
             HttpServletResponse response, String seriesIndex, String dataIndex, String package1) throws Exception {
         Map<String, Object> map = new HashMap<String, Object>();
         map = getAnalyzingSelectedList(request, response, seriesIndex, dataIndex, null, package1);
         Iterable<DmMeasureBean> list= (List<DmMeasureBean>)map.get("rows");
         JSONArray jsonArray = new JSONArray();
         JSONObject jsonObject = new JSONObject();
         for(DmMeasureBean bean : list) {
             jsonObject.clear();
             jsonObject.put("**", bean.getName());
             jsonObject.put("**", bean.getAge());
             jsonObject.put("**", bean.getGenderString());
             jsonObject.put("**", new SimpleDateFormat("yyyy-MM-dd").format(bean.getBirthday()));
             jsonObject.put("**", bean.getResult() == null ? "" : bean.getResult());
             jsonObject.put("**", bean.getExamDate() == null ? "" : new SimpleDateFormat("yyyy-MM-dd").format(bean.getExamDate()));
             jsonObject.put("**", bean.getTel());
             jsonArray.add(jsonObject);
         }
         return jsonArray;
     }