如何从inputtextarea下载含有内容的xml文件？ [英] How to download a xml file with content from inputtextarea?
本文介绍了如何从inputtextarea下载含有内容的xml文件？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试使用面组件下载一个xml文件。这部分是工作，但我的页面上有一个inputtextarea，我想要在我下载的xml文件中写入的inputtextarea中的文本。开发人员可以帮我吗？谢谢。
I am trying to download a xml file using primefaces components. This part is working but I have on my page a inputtextarea, and I would like to have the text that I write in the inputtextarea written in the xml file that is downloaded. Could a developer help me ? Thank you.
我的观点：
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>File Download</title>
</h:head>
<h:body>
<p:dialog modal="true" widgetVar="statusDialog" header="Status" draggable="false" closable="false" resizable="false">
<p:graphicImage value="/images/loading11.gif" />
</p:dialog>
<p:inputTextarea id ="mytheinput" value="#{fileDownloadView.mytext}" cols="115" autoResize="true" rows="20" />
<h:form>
<p:commandButton value="Download" ajax="false" onclick="PrimeFaces.monitorDownload(start, stop);" icon="ui-icon-arrowthick-1-s">
<p:fileDownload value="#{fileDownloadView.file}" />
</p:commandButton>
</h:form>
<script type="text/javascript">
function start() {
PF('statusDialog').show();
}
function stop() {
PF('statusDialog').hide();
}
</script>
</h:body>
</html>
我的豆：
@ManagedBean(name="fileDownloadView")
public class FileDownloadView {
private StreamedContent file;
private String mytext;
public FileDownloadView() {
InputStream stream = ((ServletContext)FacesContext.getCurrentInstance().getExternalContext().getContext()).getResourceAsStream(mytext);
file = new DefaultStreamedContent(stream, "xml", "yourfile.xml");
}
public StreamedContent getFile() {
return file;
}
public String getMytext() {
return mytext;
}
}
推荐答案
少量评论
- 您的
p：inputTextarea应该在h：form元素 - 你的bean的
mytext属性必须有一个 getter （ok）AND setter （missing！） - 您的InputStream代码来自PF示例，返回资源图片文件的内容。你只想从字符串创建一个流！问问自己如何将字符串转换为流在java？
- 由于文本的更改（即<$ code> InputStream c $ c> getFile 而不是构造函数）
- Your
p:inputTextareashould be inside theh:formelement - Your bean's
mytextproperty must have a getter (ok) AND a setter (missing!) - Your InputStream code comes from a PF example that returns the content of a resource picture file. You just want to create a stream from a string! Ask yourself How do I turn a String into a Stream in java?
- The
InputStreammust be created on the fly because of the changing text (i.e. insidegetFileinstead of constructor)
有一点帮助 / p>
A little help
public StreamedContent getFile() {
InputStream stream = new ByteArrayInputStream( mytext.getBytes() );
StreamedContent file = new DefaultStreamedContent(stream, "xml", "yourfile.xml");
return file;
}
public String getMytext() {
return mytext;
}
public void setMytext(String mytext) {
this.mytext = mytext;
}
这篇关于如何从inputtextarea下载含有内容的xml文件？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
