使用 jsPDF-AutoTable 插件将 data-table 转换为 pdf 时出现排除额外页面

Question

我一直在尝试使用 jsPDF-AutoTable 插件打印最小数据-table。这是直播 demo .

我的代码-

HTML

<button id="cmd">generate PDF</button>
    <div id="content">
    <table id="example" class="display" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Age</th>
                <th>Start date</th>
               <th>Salary</th>
            </tr>
       </thead>
      <tfoot>
          <tr>
              <th>Name</th>
              <th>Position</th>
              <th>Office</th>
              <th>Age</th>
              <th>Start date</th>
              <th>Salary</th>
           </tr>
</tfoot>
<tbody>
  <tr>
    <td>Tiger Nixon</td>
    <td>System Architect</td>
    <td>Edinburgh</td>
    <td>61</td>
    <td>2011/04/25</td>
    <td>0,800</td>
  </tr>
  <tr>
    <td>Garrett Winters</td>
    <td>Accountant</td>
    <td>Tokyo</td>
    <td>63</td>
    <td>2011/07/25</td>
    <td>0,750</td>
  </tr>
  <tr>
    <td>Ashton Cox</td>
    <td>Junior Technical Author</td>
    <td>San Francisco</td>
    <td>66</td>
    <td>2009/01/12</td>
    <td>,000</td>
  </tr>
  <tr>
    <td>Cedric Kelly</td>
    <td>Senior Javascript Developer</td>
    <td>Edinburgh</td>
    <td>22</td>
    <td>2012/03/29</td>
    <td>3,060</td>
  </tr>
  <tr>
    <td>Airi Satou</td>
    <td>Accountant</td>
    <td>Tokyo</td>
    <td>33</td>
    <td>2008/11/28</td>
    <td>2,700</td>
  </tr>
  <tr>
    <td>Brielle Williamson</td>
    <td>Integration Specialist</td>
    <td>New York</td>
    <td>61</td>
    <td>2012/12/02</td>
    <td>2,000</td>
  </tr>
  <tr>
    <td>Herrod Chandler</td>
    <td>Sales Assistant</td>
    <td>San Francisco</td>
    <td>59</td>
    <td>2012/08/06</td>
    <td>7,500</td>
  </tr>
  <tr>
    <td>Rhona Davidson</td>
    <td>Integration Specialist</td>
    <td>Tokyo</td>
    <td>55</td>
    <td>2010/10/14</td>
    <td>7,900</td>
  </tr>
  <tr>
    <td>Colleen Hurst</td>
    <td>Javascript Developer</td>
    <td>San Francisco</td>
    <td>39</td>
    <td>2009/09/15</td>
    <td>5,500</td>
  </tr>
  <tr>
    <td>Sonya Frost</td>
    <td>Software Engineer</td>
    <td>Edinburgh</td>
    <td>23</td>
    <td>2008/12/13</td>
    <td>3,600</td>
  </tr>
  <tr>
    <td>Jena Gaines</td>
    <td>Office Manager</td>
    <td>London</td>
    <td>30</td>
    <td>2008/12/19</td>
    <td>,560</td>
  </tr>
  <tr>
    <td>Quinn Flynn</td>
    <td>Support Lead</td>
    <td>Edinburgh</td>
    <td>22</td>
    <td>2013/03/03</td>
    <td>2,000</td>
  </tr>
  <tr>
    <td>Charde Marshall</td>
    <td>Regional Director</td>
    <td>San Francisco</td>
    <td>36</td>
    <td>2008/10/16</td>
    <td>0,600</td>
  </tr>
  <tr>
    <td>Haley Kennedy</td>
    <td>Senior Marketing Designer</td>
    <td>London</td>
    <td>43</td>
    <td>2012/12/18</td>
    <td>3,500</td>
  </tr>
  <tr>
    <td>Tatyana Fitzpatrick</td>
    <td>Regional Director</td>
    <td>London</td>
    <td>19</td>
    <td>2010/03/17</td>
    <td>5,750</td>
  </tr>
  <tr>
    <td>Michael Silva</td>
    <td>Marketing Designer</td>
    <td>London</td>
    <td>66</td>
    <td>2012/11/27</td>
    <td>8,500</td>
  </tr>
  <tr>
    <td>Paul Byrd</td>
    <td>Chief Financial Officer (CFO)</td>
    <td>New York</td>
    <td>64</td>
    <td>2010/06/09</td>
    <td>5,000</td>
  </tr>
  <tr>
    <td>Gloria Little</td>
    <td>Systems Administrator</td>
    <td>New York</td>
    <td>59</td>
    <td>2009/04/10</td>
    <td>7,500</td>
  </tr>
  <tr>
    <td>Bradley Greer</td>
    <td>Software Engineer</td>
    <td>London</td>
    <td>41</td>
    <td>2012/10/13</td>
    <td>2,000</td>
  </tr>
  <tr>
    <td>Dai Rios</td>
    <td>Personnel Lead</td>
    <td>Edinburgh</td>
    <td>35</td>
    <td>2012/09/26</td>
    <td>7,500</td>
  </tr>
  <tr>
    <td>Jenette Caldwell</td>
    <td>Development Lead</td>
    <td>New York</td>
    <td>30</td>
    <td>2011/09/03</td>
    <td>5,000</td>
  </tr>
  <tr>
    <td>Yuri Berry</td>
    <td>Chief Marketing Officer (CMO)</td>
    <td>New York</td>
    <td>40</td>
    <td>2009/06/25</td>
    <td>5,000</td>
  </tr>
  <tr>
    <td>Caesar Vance</td>
    <td>Pre-Sales Support</td>
    <td>New York</td>
    <td>21</td>
    <td>2011/12/12</td>
    <td>6,450</td>
  </tr>
  <tr>
    <td>Doris Wilder</td>
    <td>Sales Assistant</td>
    <td>Sidney</td>
    <td>23</td>
    <td>2010/09/20</td>
    <td>,600</td>
  </tr>
  <tr>
    <td>Angelica Ramos</td>
    <td>Chief Executive Officer (CEO)</td>
    <td>London</td>
    <td>47</td>
    <td>2009/10/09</td>
    <td>,200,000</td>
  </tr>
  <tr>
    <td>Gavin Joyce</td>
    <td>Developer</td>
    <td>Edinburgh</td>
    <td>42</td>
    <td>2010/12/22</td>
    <td>,575</td>
  </tr>
  <tr>
    <td>Jennifer Chang</td>
    <td>Regional Director</td>
    <td>Singapore</td>
    <td>28</td>
    <td>2010/11/14</td>
    <td>7,650</td>
  </tr>
  <tr>
    <td>Brenden Wagner</td>
    <td>Software Engineer</td>
    <td>San Francisco</td>
    <td>28</td>
    <td>2011/06/07</td>
    <td>6,850</td>
  </tr>
  <tr>
    <td>Fiona Green</td>
    <td>Chief Operating Officer (COO)</td>
    <td>San Francisco</td>
    <td>48</td>
    <td>2010/03/11</td>
    <td>0,000</td>
  </tr>
  <tr>
    <td>Shou Itou</td>
    <td>Regional Marketing</td>
    <td>Tokyo</td>
    <td>20</td>
    <td>2011/08/14</td>
    <td>3,000</td>
  </tr>
  <tr>
    <td>Michelle House</td>
    <td>Integration Specialist</td>
    <td>Sidney</td>
    <td>37</td>
    <td>2011/06/02</td>
    <td>,400</td>
  </tr>
  <tr>
    <td>Suki Burks</td>
    <td>Developer</td>
    <td>London</td>
    <td>53</td>
    <td>2009/10/22</td>
    <td>4,500</td>
  </tr>
  <tr>
    <td>Prescott Bartlett</td>
    <td>Technical Author</td>
    <td>London</td>
    <td>27</td>
    <td>2011/05/07</td>
    <td>5,000</td>
  </tr>
  <tr>
    <td>Gavin Cortez</td>
    <td>Team Leader</td>
    <td>San Francisco</td>
    <td>22</td>
    <td>2008/10/26</td>
    <td>5,500</td>
  </tr>
  <tr>
    <td>Martena Mccray</td>
    <td>Post-Sales support</td>
    <td>Edinburgh</td>
    <td>46</td>
    <td>2011/03/09</td>
    <td>4,050</td>
  </tr>
  <tr>
    <td>Unity Butler</td>
    <td>Marketing Designer</td>
    <td>San Francisco</td>
    <td>47</td>
    <td>2009/12/09</td>
    <td>,675</td>
  </tr>
  <tr>
    <td>Howard Hatfield</td>
    <td>Office Manager</td>
    <td>San Francisco</td>
    <td>51</td>
    <td>2008/12/16</td>
    <td>4,500</td>
  </tr>
  <tr>
    <td>Hope Fuentes</td>
    <td>Secretary</td>
    <td>San Francisco</td>
    <td>41</td>
    <td>2010/02/12</td>
    <td>9,850</td>
  </tr>
  <tr>
    <td>Vivian Harrell</td>
    <td>Financial Controller</td>
    <td>San Francisco</td>
    <td>62</td>
    <td>2009/02/14</td>
    <td>2,500</td>
  </tr>
  <tr>
    <td>Timothy Mooney</td>
    <td>Office Manager</td>
    <td>London</td>
    <td>37</td>
    <td>2008/12/11</td>
    <td>6,200</td>
  </tr>
  <tr>
    <td>Jackson Bradshaw</td>
    <td>Director</td>
    <td>New York</td>
    <td>65</td>
    <td>2008/09/26</td>
    <td>5,750</td>
  </tr>
  <tr>
    <td>Olivia Liang</td>
    <td>Support Engineer</td>
    <td>Singapore</td>
    <td>64</td>
    <td>2011/02/03</td>
    <td>4,500</td>
  </tr>
  <tr>
    <td>Bruno Nash</td>
    <td>Software Engineer</td>
    <td>London</td>
    <td>38</td>
    <td>2011/05/03</td>
    <td>3,500</td>
  </tr>
  <tr>
    <td>Sakura Yamamoto</td>
    <td>Support Engineer</td>
    <td>Tokyo</td>
    <td>37</td>
    <td>2009/08/19</td>
    <td>9,575</td>
  </tr>
  <tr>
    <td>Thor Walton</td>
    <td>Developer</td>
    <td>New York</td>
    <td>61</td>
    <td>2013/08/11</td>
    <td>,540</td>
  </tr>
  <tr>
    <td>Finn Camacho</td>
    <td>Support Engineer</td>
    <td>San Francisco</td>
    <td>47</td>
    <td>2009/07/07</td>
    <td>,500</td>
  </tr>
  <tr>
    <td>Serge Baldwin</td>
    <td>Data Coordinator</td>
    <td>Singapore</td>
    <td>64</td>
    <td>2012/04/09</td>
    <td>8,575</td>
  </tr>
  <tr>
    <td>Zenaida Frank</td>
    <td>Software Engineer</td>
    <td>New York</td>
    <td>63</td>
    <td>2010/01/04</td>
    <td>5,250</td>
  </tr>
  <tr>
    <td>Zorita Serrano</td>
    <td>Software Engineer</td>
    <td>San Francisco</td>
    <td>56</td>
    <td>2012/06/01</td>
    <td>5,000</td>
  </tr>
  <tr>
    <td>Jennifer Acosta</td>
    <td>Junior Javascript Developer</td>
    <td>Edinburgh</td>
    <td>43</td>
    <td>2013/02/01</td>
    <td>,650</td>
  </tr>
  <tr>
    <td>Cara Stevens</td>
    <td>Sales Assistant</td>
    <td>New York</td>
    <td>46</td>
    <td>2011/12/06</td>
    <td>5,600</td>
  </tr>
  <tr>
    <td>Hermione Butler</td>
    <td>Regional Director</td>
    <td>London</td>
    <td>47</td>
    <td>2011/03/21</td>
    <td>6,250</td>
  </tr>
  <tr>
    <td>Lael Greer</td>
    <td>Systems Administrator</td>
    <td>London</td>
    <td>21</td>
    <td>2009/02/27</td>
    <td>3,500</td>
  </tr>
  <tr>
    <td>Jonas Alexander</td>
    <td>Developer</td>
    <td>San Francisco</td>
    <td>30</td>
    <td>2010/07/14</td>
    <td>,500</td>
  </tr>
  <tr>
    <td>Shad Decker</td>
    <td>Regional Director</td>
    <td>Edinburgh</td>
    <td>51</td>
    <td>2008/11/13</td>
    <td>3,000</td>
  </tr>
  <tr>
    <td>Michael Bruce</td>
    <td>Javascript Developer</td>
    <td>Singapore</td>
    <td>29</td>
    <td>2011/06/27</td>
    <td>3,000</td>
  </tr>
  <tr>
    <td>Donna Snider</td>
    <td>Customer Support</td>
    <td>New York</td>
    <td>27</td>
    <td>2011/01/25</td>
    <td>2,000</td>
  </tr>
</tbody>
</table>
</div>

JavaScript

var table = $('#example').DataTable();

var columns = ["Name", "Position", "Office", "Age", "Start date", "Salary"];
var rows = [];
var table_data = table.rows().data();

for (var i in table_data) {
    rows.push(table_data[i]);
}

var doc = new jsPDF('p', 'pt');
doc.autoTable(columns, rows);



$('#cmd').click(function() {
  doc.save('table.pdf');
});

由于某种原因，正在打印一些额外的页面。我还没有找到这个问题的任何解决方案。我如何从 pdf 中排除多余的页面？

Answer 1

循环遍历数据数组如下所示：

for(var i = 0; i < table_data.length; i++){    
    rows.push(table_data[i]);
}

API 方法 data() returns API 实例而不是普通数组，以便可以链接 API 方法。但是，如果您使用 [] 访问元素并使用 length 属性查询数组长度，它将正常工作。

有关代码和演示，请参阅 updated jsFiddle。

使用 jsPDF-AutoTable 插件将 data-table 转换为 pdf 时出现排除额外页面

Excluding extra pages appeared while converting data-table to pdf using jsPDF-AutoTable plugin

javascript

jquery

datatables

jspdf