javascript 如何在java strust2中将jsp上显示的表格导出为pdf
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How to export table displayed on jsp to pdf in java strust2
提问by Sagar Mahalle
This is my data display in table format. I want to show as it is in PDF without using display tag library of struts2.
这是我以表格格式显示的数据。我想在不使用struts2的显示标签库的情况下以PDF格式显示。
<table border="1" align="center" style="border-color: #CCCCCC; border-width: 1px; border-style: None; width: 1320px; border-collapse: collapse;" id="tablepaging">
<tbody>
<tr>
<td>Leave ID</td>
<td>FROM DATE</td>
<td>TO DATE</td>
<td>DAYS REQUESTED</td>
<td>APPROVER</td>
<td>NOTES</td>
<td>REMARK</td>
<td>IS PLANNED</td>
<td>REASON</td>
</tr>
<tr>
<td>270</td>
<td>12/27/12</td>
<td>12/29/12</td>
<td>2</td>
<td>Sagar</td>
<td>s</td>
<td>s</td>
<td>true</td>
<td>s</td>
<td>
<a href="/HRIS_Updated/cancelRequest.action;jsessionid=A2313340A50DD2DAB054714BF65AB08B?leaveId=270" id="submitinvoice;jsessionid=A2313340A50DD2DAB054714BF65AB08B_">Cancel</a>
</td>
<td>
<a href="/HRIS_Updated/requestHistory.action;jsessionid=A2313340A50DD2DAB054714BF65AB08B?leaveId=270" id="submitinvoice;jsessionid=A2313340A50DD2DAB054714BF65AB08B_">History</a>
</td>
</tr>
</tbody>
</table>
Is it be possible with javascript or jquery?
javascript或jquery可以吗？
Please help me with some code I have googled it for a few days but get nothing.
请帮我一些代码，我在谷歌上搜索了几天但什么也没得到。
采纳答案by MAK
Using display table on jsp would be quite easire to convert it to *pdf along with .csv,.excel and son on,Here is the sample code ;
在jsp上使用显示表将很容易将其转换为* pdf以及.csv、.excel和son on，这是示例代码；
<display:table id="data" name="${questions}" requestURI="" pagesize="10" export="true" >
<display:column property="label" title="Question" sortable="true"/>
<display:column title="Graph Analysis"> <img src="${imagePath}${reportData.clientName}/${data.label}.png"/></display:column>
<display:setProperty name="export.pdf" value="true" />
</display:table>
回答by Timur Aykut YILDIRIM
As far as i know unfortunately javascript cannot create pdf files by itself. And i haven't use struts yet. But I recommend you Displaytag library which is very easy to use :)
据我所知，不幸的是 javascript 不能自己创建 pdf 文件。而且我还没有使用过struts。但我推荐你 Displaytag 库，它非常易于使用:)
This is what you need particularly (with code) : http://displaytag.sourceforge.net/10/export.html
这是您特别需要的（带有代码）：http: //displaytag.sourceforge.net/10/export.html
documentation (from beginning to end) : http://displaytag.sourceforge.net/10/displaytag.pdf
文档（从头到尾）：http: //displaytag.sourceforge.net/10/displaytag.pdf
回答by Andrea Ligios
To generate a PDFfrom an HTMLsource in Java, you can use iText's HTMLWorkermodule (now deprecated, the new project is XMLWorker, but this depends on the iText version you're using).
要生成一个PDF由HTML在Java源代码，您可以使用iText's HTMLWorker模块（现在已经过时，新项目是XMLWorker，但这取决于你使用的iText的版本）。
You can emulate the table you have on JSP page in an String variable of an Action, let's say CreatePDFAction;
您可以在 Action 的 String 变量中模拟 JSP 页面上的表，例如CreatePDFAction；
Then, from the JSP, call CreatePDFActionwith a submit button (opening the pdf on a new page, if you want).
然后，从 JSP 调用CreatePDFAction提交按钮（如果需要，可以在新页面上打开 pdf）。
In Struts.xml, declare CreatePDFActionresult as streamresult type, with the appropriate contentType(application/pdf), and the desired contentDispositionfor specifying the filename, and the behavior: download it (attachment) or open it in browser (inline).
在 Struts.xml 中，CreatePDFAction将stream结果声明为结果类型，使用适当的contentType( application/pdf) 和所需contentDisposition的文件名，以及行为：下载它 ( attachment) 或在浏览器中打开它 ( inline)。
Inside the CreatePDFActionaction, you receive the String, instantiate a new document and a new HTMLWorker, feed it with the string containing your HTML, then extract the bytes from the resulting PDF and put it in an InputStream exposed through a getter by the action.
在CreatePDFAction动作内部，您接收字符串，实例化一个新文档和一个新的 HTMLWorker，将包含您的 HTML 的字符串提供给它，然后从生成的 PDF 中提取字节并将其放入由动作通过 getter 公开的 InputStream 中。
回答by Sagar Mahalle
Finaly i got the solution here is the code
<script language="javascript" type="text/javascript">
function Retrivetable()
{
var table = document.getElementById("historyTable");
if (table) {
// If outerHTML property available, use it
if (typeof table.outerHTML == 'string') {
$('#settable').val(table.outerHTML)
// Otherwise, emualte it
} else {
var div = document.createElement('div');
div.appendChild(table.cloneNode(true));
$('#settable').val(div.innerHTML);
}
}
}
</script>
<s:submit
onclick="Retrivetable()"
value="Export to Pdf" action="ExportToPdf" method="ExportPDF" align="bottom"/>
In the action class
public String ExportPDF()
{
tablestruct = "<html><head></head><body>"+tablestruct+"</body></html>";
//System.out.println("After concat "+tablestruct);
try{
String filePath = ServletActionContext.getServletContext().getRealPath("/testpdf.pdf");
System.out.println(filePath);
Document document=new Document(PageSize.LETTER);
PdfWriter pdfWriter = PdfWriter.getInstance(document, new FileOutputStream(filePath));
document.open();
HTMLWorker htmlWorker = new HTMLWorker(document);
htmlWorker.parse(new StringReader(tablestruct));
document.close();
System.out.println("Done");
File file = new File(filePath);
inputStream = new DataInputStream( new FileInputStream(file));
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
回答by Andrew
I am not sure about struts, I used itextpdfin JSP.
http://tutorials.jenkov.com/java-itext/getting-started.html
我不确定 struts，我itextpdf在 JSP 中使用过。
http://tutorials.jenkov.com/java-itext/getting-started.html
Hopefuly it will help
希望它会有所帮助
