我需要在浏览器中显示 PDF 文件。我使用 Spring MVC。有没有办法在不使用 AbstractPdfView 的情况下做到这一点?我不想在运行时呈现 PDF。所有的 PDF 文件都将存储在我的网络服务器中。
这是我正在使用的代码。但这会直接下载文件,而不是在浏览器中显示。
@RequestMapping(value = "/download" , method = RequestMethod.GET)
public void doDownload(HttpServletRequest request,
HttpServletResponse response) throws IOException {
// get absolute path of the application
ServletContext context = request.getSession().getServletContext();
String appPath = context.getRealPath("");
String filename= request.getParameter("filename");
filePath = getDownloadFilePath(lessonName);
// construct the complete absolute path of the file
String fullPath = appPath + filePath;
File downloadFile = new File(fullPath);
FileInputStream inputStream = new FileInputStream(downloadFile);
// get MIME type of the file
String mimeType = context.getMimeType(fullPath);
if (mimeType == null) {
// set to binary type if MIME mapping not found
mimeType = "application/pdf";
}
System.out.println("MIME type: " + mimeType);
String headerKey = "Content-Disposition";
response.addHeader("Content-Disposition", "attachment;filename=report.pdf");
response.setContentType("application/pdf");
// get output stream of the response
OutputStream outStream = response.getOutputStream();
byte[] buffer = new byte[BUFFER_SIZE];
int bytesRead = -1;
// write bytes read from the input stream into the output stream
while ((bytesRead = inputStream.read(buffer)) != -1) {
outStream.write(buffer, 0, bytesRead);
}
inputStream.close();
outStream.close();
}