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HTML save data to CSV or excel

时间:2017-10-28 18:10:29      阅读:323      评论:0      收藏:0      [点我收藏+]
/*********************************************************************************
 *                     HTML save data to CSV or excel
 * 说明:
 *     将网页内容保存到csv文件或者execl中。
 *
 *                                              2017-10-28 深圳 南山平山村 曾剑锋
 ********************************************************************************/

一、参考文档:
    1. store data from a form using just HTML
        https://stackoverflow.com/questions/14360769/store-data-from-a-form-using-just-html
    2. Write to CSV file locally with HTML5
        https://stackoverflow.com/questions/27013963/write-to-csv-file-locally-with-html5
    3. Web导出excel的几种方法
        http://taote.iteye.com/blog/842496
    4. JS直接导出excel 兼容ie、chrome、firefox
        http://blog.csdn.net/sinat_15114467/article/details/51098522
    5. How do I export html table data as .csv file?
        https://stackoverflow.com/questions/7161113/how-do-i-export-html-table-data-as-csv-file


二、原理:
    data协议方式:对于支持data协议的浏览器,可以将html或是csv先用js base64处理,然后前缀data:application/vnd.ms-excel;base64,,即可使浏览器将其中的数据当做excel来处理,浏览器将提示下载或打开excel文件,可惜的是ie不支持。extjs的官网有一个grid的plugin,实现导出xhtml格式的伪excel文件,就是这么做的。

三、Example
    <!DOCTYPE html>
    <html>
      <head>
      <!-- <script src="jquery-3.2.1.min.js"></script> -->
      <script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.2.1.min.js"></script> 
      <script type="text/javascript">
        function exportTableToCSV($table, filename) {
            var $rows = $table.find(tr:has(td),tr:has(th)),
        
                // Temporary delimiter characters unlikely to be typed by keyboard
                // This is to avoid accidentally splitting the actual contents
                tmpColDelim = String.fromCharCode(11), // vertical tab character
                tmpRowDelim = String.fromCharCode(0), // null character
        
                // actual delimiter characters for CSV format
                colDelim = ",",
                rowDelim = "\r\n",
        
                // Grab text from table into CSV formatted string
                csv = " + $rows.map(function (i, row) {
                    var $row = $(row), $cols = $row.find(td,th);
        
                    return $cols.map(function (j, col) {
                        var $col = $(col), text = $col.text();
        
                        return text.replace(/"/g, ‘""‘); // escape double quotes
        
                    }).get().join(tmpColDelim);
        
                }).get().join(tmpRowDelim)
                    .split(tmpRowDelim).join(rowDelim)
                    .split(tmpColDelim).join(colDelim) + ",
        
                // Data URI
                csvData = data:application/csv;charset=utf-8, + encodeURIComponent(csv);
        
                console.log(csv);
        
                if (window.navigator.msSaveBlob) { // IE 10+
                    //alert(‘IE‘ + csv);
                    window.navigator.msSaveOrOpenBlob(new Blob([csv], {type: "text/plain;charset=utf-8;"}), "csvname.csv")
                } 
                else {
                    $(this).attr({ download: filename, href: csvData, target: _blank }); 
                }
        }
        
        $(function() {
            // This must be a hyperlink
            $("#xx").on(click, function (event) {
            
                // exportTableToCSV.apply(this, [$(‘#projectSpreadsheet‘), ‘export.csv‘]);
                exportTableToCSV.apply(this, [$(#QMSTable), export.csv]);
            
                // IF CSV, don‘t do event.preventDefault() or return false
                // We actually need this to be a typical hyperlink
            });
        });
        
        function fillHidTable(){
            var htqf; //-- hidden field
            var rf; //-- retrieved field
            for ( var i = 1; i < 5; i++ ) {
                rf = "htqf"+i;
                document.getElementById(rf).innerHTML = document.getElementById("Q"+i+"CALC").value;
            }
            tableToExcel(hidTable, Analysis Results);
        }
        
        var tableToExcel = (function() {
            var uri = data:application/vnd.ms-excel;base64,
                    , template = <html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>
                    , base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) }
                    , format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }) }
            return function(table, name) {
                if (!table.nodeType) table = document.getElementById(table)
                var ctx = {worksheet: name || Worksheet, table: table.innerHTML}
                window.location.href = uri + base64(format(template, ctx))
            }
        })()
      </script>
      
      <title>HTML Form Data to Excel</title>
      
      <style type="text/css" media="screen">
          .divCenMid{font-family:Arial,sans-serif;font-size:14pt;font-style:normal;font-weight:700;text-align:center;vertical-align:middle;margin:0;}
          .allbdrCenMid{border:.75pt solid windowtext;color:#000;font-family:Arial,sans-serif;font-size:10pt;font-style:normal;font-weight:400;text-align:center;vertical-align:middle;margin:0;}
          .allbdrCenTop{border:.75pt solid windowtext;color:#000;font-family:Arial,sans-serif;font-size:10pt;font-style:normal;font-weight:400;text-align:center;vertical-align:top;margin:0;}
          .allbdrLtMid{border:.75pt solid windowtext;color:#000;font-family:Arial,sans-serif;font-size:10pt;font-style:normal;font-weight:400;text-align:left;vertical-align:middle;margin:0;}
          .allbdrLtTop{border:.75pt solid windowtext;color:#000;font-family:Arial,sans-serif;font-size:10pt;font-style:normal;font-weight:400;text-align:left;vertical-align:top;margin:0;}
      
      </style>
      
      </head>
      
      <body>
      
      <table width= "565px" cellspacing="0" cellpadding="0" style="border-spacing:0;" id="QMSTable">
          <col width="25px"/>
          <col width="120px"/>
          <col width="360px"/>
          <col width="60px"/>
          <tr>
              <td class="divCenMid" colspan = "4"> QMS Assessment</td>
          </tr>
          <tr>
              <td class="allbdrCenMid"> No</td>
              <td class="allbdrCenMid"> Criteria</td>
              <td class="allbdrLtMid"> Question</td>
              <td class="allbdrCenMid"> Score</td>
          </tr>
          <tr>
              <td class="allbdrCenTop"> Q1</td>
              <td class="allbdrLtTop"> Quality Unit Independency</td>
              <td class="allbdrLtTop"> Do you have the Quality Unit?</td>
              <td class="allbdrCenMid">
                  <input id="Q1CALC" type="text" value="" class="nobdrCenMid" style="overflow:hidden; width:93% " name="Q1CALC"/>
              </td>
          </tr>
          <tr>
              <td class="allbdrCenTop"> Q2</td>
              <td class="allbdrLtTop"> Apply PICS GMP</td>
              <td class="allbdrLtTop"> Which GMP regulation do you use?</td>
              <td class="allbdrCenMid">
                  <input id="Q2CALC" type="text" value="" class="nobdrCenMid" style="overflow:hidden; width:93% " name="Q2CALC"/>
              </td>
          </tr>
          <tr>
              <td class="allbdrCenTop"> Q3</td>
              <td class="allbdrLtTop"> Deviation or Non-conformance</td>
              <td class="allbdrLtTop"> Do you have a deviation or non-conformance procedure?</td>
              <td class="allbdrCenMid">
                  <input id="Q3CALC" type="text" value="" class="nobdrCenMid" style="overflow:hidden; width:93% " name="Q3CALC"/>
              </td>
          </tr>
          <tr>
              <td class="allbdrCenTop"> Q4</td>
              <td class="allbdrLtTop"> Complaint</td>
              <td class="allbdrLtTop"> Do you have a customer complaint procedure?</td>
              <td class="allbdrCenMid">
                  <input id="Q4CALC" type="text" value="" class="nobdrCenMid" style="overflow:hidden; width:93% " name="Q4CALC"/>
              </td>
          </tr>
      </table>
      
      <div id="hidTable" style="display: none">
          <table id="testTable">
              <caption>Supplier Risk Analysis</caption>
              <colgroup></colgroup>
              <colgroup></colgroup>
              <colgroup></colgroup>
              <thead>
              <tr>
                  <th>No.</th>
                  <th>Question</th>
                  <th>Score</th>
              </tr>
              </thead>
              <tbody>
              <tr>
                  <td>Q1</td>
                  <td>Do you have the Quality Unit?</td>
                  <td id="htqf1">-</td>
              </tr>
              <tr>
                  <td>Q2</td>
                  <td>Apply PICS GMP?</td>
                  <td id="htqf2">-</td>
              </tr>
              <tr>
                  <td>Q3</td>
                  <td>Do you have a deviation or non-conformance procedure?</td>
                  <td id="htqf3">-</td>
              </tr>
              <tr>
                  <td>Q4</td>
                  <td>Do you have a customer complaint procedure?</td>
                  <td id="htqf4">-</td>
              </tr>
              </tbody>
          </table>
      </div>
      <input type="button" onclick="fillHidTable()" value="Export Data to Excel">
    
      <br />
      <br />
      <div>
        <a href="#" id="xx" style="text-decoration:none;color:#000;background-color:#ddd;border:1px solid #ccc;padding:8px;">Export Table data into Excel</a>
      </div>
      </body>
    </html>

 

HTML save data to CSV or excel

原文:http://www.cnblogs.com/zengjfgit/p/7747439.html

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