如何读取pdf文件并将其写入outputStream

  • Z时代
  • 2024-01-10
  • 分类：问答

我需要读取文件路径为“ C：\ file.pdf”的pdf文件，并将其写入outputStream。最简单的方法是什么？

@Controller
public class ExportTlocrt {
@Autowired
private PhoneBookService phoneBookSer;
private void setResponseHeaderTlocrtPDF(HttpServletResponse response) {
    response.setContentType("application/pdf");
    response.setHeader("content-disposition", "attachment; filename=Tlocrt.pdf" );
}
@RequestMapping(value = "/exportTlocrt.html", method = RequestMethod.POST)
public void exportTlocrt(Model model, HttpServletResponse response, HttpServletRequest request){
    setResponseHeaderTlocrtPDF(response);
    File f = new File("C:\\Tlocrt.pdf");
    try {
        OutputStream os = response.getOutputStream();
        byte[] buf = new byte[8192];
        InputStream is = new FileInputStream(f);
        int c = 0;
        while ((c = is.read(buf, 0, buf.length)) > 0) {
            os.write(buf, 0, c);
            os.flush();
        }
        os.close();
        is.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}
}

...................................................

...................................................

回答：

import java.io.*;

public class FileRead {
    public static void main(String[] args) throws IOException {
        File f=new File("C:\\Documents and Settings\\abc\\Desktop\\abc.pdf");
        OutputStream oos = new FileOutputStream("test.pdf");
        byte[] buf = new byte[8192];
        InputStream is = new FileInputStream(f);
        int c = 0;
        while ((c = is.read(buf, 0, buf.length)) > 0) {
            oos.write(buf, 0, c);
            oos.flush();
        }
        oos.close();
        System.out.println("stop");
        is.close();
    }
}

到目前为止最简单的方法。希望这可以帮助。

以上是 如何读取pdf文件并将其写入outputStream 的全部内容， 来源链接： utcz.com/qa/422223.html

回到顶部