Java with IO output stream for file download!

Using IO output streaming: Directly on Java code,

HTML interface only needs a <a href= "xxxxx/xxx/xx" > Download </a> address directly write the corresponding Java address just fine.

Method One:

	@RequestMapping ("domload.it") public
	void Domload (httpservletresponse response, HttpServletRequest request) Throws IOException  {
		 //GET request filename 
		String path = Request.getservletcontext (). Getrealpath ("/resource/pdf/ Enquiry.pdf ");
		SYSTEM.OUT.PRINTLN (path);
		To download the way to open
		Response.setheader ("Content-disposition", "attachment;filename=java.pdf");
		File File = new file (path);
		FileInputStream FIS =  new FileInputStream (file);
		Write
		 Servletoutputstream out = Response.getoutputstream ();
		Define read buffer
		byte buffer[] = new byte[1024];
		Define read length
		int len = 1024;
		Loop read while
		(len = fis.read (buffer))!=-1) {
			out.write (Buffer,0,len);
		}
		
		Releasing Resources
		Fis.close ();
		Out.flush ();
		Out.close ();
	}	
	

Method 2:
	
	@RequestMapping ("domload1.it") public
	void Domload1 (httpservletresponse response, HttpServletRequest Request) throws IOException  {
		 //get requested filename 
		String path = Request.getservletcontext (). Getrealpath ("/ Resource/pdf/enquiry.pdf ");
		SYSTEM.OUT.PRINTLN (path);
		File File = new file (path);
		Open Response.setheader by Download
		("Content-disposition", "Attachment;filename=" +urlencoder.encode (file.getName) , "UTF-8"));
		
		Create Liu Object
		filereader reader = new FileReader (file);
		Write
		PrintWriter out = Response.getwriter ();
		Define read buffer
		char buffer[] = new char[1024];
		Define read length
		int len = 1024;
		Loop read while
		(len = reader.read (buffer))!=-1) {
			out.write (Buffer,0,len);
		}
		
		Releasing Resources
		Reader.close ();
		Out.flush ();
		Out.close ();
		
	}