我正在使用 JSF,我想在单击按钮时在新选项卡中打开 PDF 文件。
XHTML
<p:commandButton onclick="this.form.target = '_blank'"
actionListener="#{managedBean.openFile(file)}"
ajax="false" />
托管bean
public void openFile( File file ) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();
BufferedInputStream input = null;
BufferedOutputStream output = null;
try {
// Open file.
input = new BufferedInputStream(new FileInputStream(file), 10240);
// Init servlet response.
response.reset();
// lire un fichier pdf
response.setHeader("Content-type", "application/pdf");
response.setContentLength((int)file.length());
response.setHeader("Content-disposition", "attachment; filename=" + node.getNomRepertoire());
response.setHeader("pragma", "public");
output = new BufferedOutputStream(response.getOutputStream(), 10240);
// Write file contents to response.
byte[] buffer = new byte[10240];
int length;
while ((length = input.read(buffer)) > 0) {
output.write(buffer, 0, length);
}
// Finalize task.
output.flush();
} finally {
// Gently close streams.
output.close();
input.close();
}
}
问题是当我使用这种方法时它只下载文件。为了您的信息,我正在关注这篇文章:http://balusc.omnifaces.org/2006/05/pdf-handling.html http://balusc.omnifaces.org/2006/05/pdf-handling.html
你应该改变
response.setHeader("Content-disposition", "attachment; filename=" + node.getNomRepertoire());
into
response.setHeader("Content-disposition", "inline; filename=" + node.getNomRepertoire());
So, use inline
代替attachment
.
也可以看看:
- 如何强制文件在浏览器中打开而不是下载(pdf)? https://stackoverflow.com/questions/6293893/how-to-force-files-to-open-in-browser-instead-of-download-pdf
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