Question

嗨，我的代码如下：

public StreamedContent getTempPdfFile() throws IOException {
    File testPdfFile = new File("D:\\AFC150_20180819_0103.pdf");
    streamedContent = new DefaultStreamedContent(new FileInputStream(testPdfFile), "application/pdf",
            "AFC150_20180819_0103.pdf");
    return streamedContent;
}

<h:panelGrid columns="1" cellpadding="5">
    <p:media value="#{realReport.tempPdfFile}" player="pdf" width="1000px" height="300px">
        <f:param name="id"  />
    </p:media>
</h:panelGrid>

但是PDF文件没有显示在页面上。

Answer 1

这是我的示例，希望对您有所帮助，代码具有内联和附件：

void sendBackPDFToClient()
{
        //File temp = File.createTempFile(fileName, ".pdf");
        File testPdfFile = new File("D:\AFC150_20180819_0103.pdf");
        FacesContext fc = FacesContext.getCurrentInstance();
        ExternalContext ec = fc.getExternalContext();

        ec.responseReset(); 
        ec.setResponseContentType("application/pdf"); 
        ec.setResponseContentLength((int)testPdfFile.length()); 

        //Inline
        //ec.setResponseHeader("Content-Disposition", "inline; filename=\"" + testPdfFile.getName() + "\""); 

        //Attach for Browser
        ec.setResponseHeader("Content-Disposition", "attachment; filename=\"" + testPdfFile.getName() + "\""); 

        OutputStream output = ec.getResponseOutputStream();
        Files.copy(testPdfFile.toPath(), output);
        fc.responseComplete();


}

Answer 2

您是否尝试过PrimeFaces Extensions的Document Viewer组件？

我认为它比p：media更易于使用，并提供更多功能，包括从URL，流或资源加载它的能力。这个基本的示例向您展示了如何使用这三种类型。

JAVA：

protected void Page_Load(object sender, EventArgs e)
{
    FileUpload1.Attributes.Add("onchange", "__doPostBack('" + LinkButton1.UniqueID + "','')");
}

XHTML：

public StreamedContent getTempPdfFile() throws IOException {
     File testPdfFile = Paths.get("D:\\AFC150_20180819_0103.pdf").toFile();
     return new DefaultStreamedContent(new FileInputStream(testPdfFile), "application/pdf",
                "AFC150_20180819_0103");
}

如何在JSF上显示pdf

2 个答案: