@RequestMapping(value = "download",method = RequestMethod.GET)
public ResponseEntity<byte[]> download(HttpServletResponse response, HttpServletRequest request) throws Exception{
//预下载文件路径******
String preDownload_path = "//172.12.34.11/8c2fa5bc-7916-8310-ee65-c77c8a7916ae/TempFile/UploadFile/uploadjob_12796/testlinux总结01.pdf";
//C:/Users/Administrator/Desktop/Learn/pdf/temp8.pdf
//C:/Users/Administrator/Desktop/Learn/查询语句.docx
int index = preDownload_path.lastIndexOf("/");
//下载后的文件名
String downloadName = preDownload_path.substring(index+1);
System.out.println(index);
System.out.println(downloadName);
response.setCharacterEncoding("utf-8");
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition", "attachment;fileName="+java.net.URLEncoder.encode(downloadName,"UTF-8"));
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(new File(preDownload_path));
os = response.getOutputStream();
byte[] b = new byte[2048];
int length;
while ((length = is.read(b)) > 0) {
os.write(b, 0, length);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
os.close();
is.close();
}
return null;
}
常见的媒体格式类型如下:
text/html : HTML格式
text/plain :纯文本格式
text/xml : XML格式
image/gif :gif图片格式
image/jpeg :jpg图片格式
image/png:png图片格式
以application开头的媒体格式类型:
application/xhtml+xml :XHTML格式
application/xml : XML数据格式
application/atom+xml :Atom XML聚合格式
application/json : JSON数据格式
application/pdf :pdf格式
application/msword : Word文档格式
application/octet-stream : 二进制流数据(如常见的文件下载)
application/x-www-form-urlencoded : <form encType=””>中默认的encType,form表单数据被编码为key/value格式发送到服务器(表单默认的提交数据的格式)
另外一种常见的媒体格式是上传文件之时使用的:
multipart/form-data : 需要在表单中进行文件上传时,就需要使用该格式