http表单上传文件
Ⅰ 关于使用Springmvc的MultipartHttpServletRequest来获得表单上传文件的问题，万分感谢~
try {
//下面这句必须加，不然报错
MultipartResolver resolver = new CommonsMultipartResolver(request.getSession().getServletContext());
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
//获取一起跟文件传过来的其他参数值
String id = multipartRequest.getParameter("id");
//获取上传上来的文件
Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
for (Map.Entry<String, MultipartFile> entry : fileMap.entrySet()){
MultipartFile file = entry.getValue();
String fileName = file.getOriginalFilename();
System.out.println(fileName);
String path = "C:\\Users\\Administrator\\Desktop" + File.separator + fileName;
file.transferTo(new File(path));
}
} catch (Exception e) {
e.printStackTrace();
}
Ⅱ 怎么用http上传一个文件到服务器 python
首先，标准HTTP协议对上传文件等表单的定义在这里：wwwietforg/rfc/rfc1867txt 大概数据包格式如下：
单文件：
Content-type: multipart/form-data, boundary=AaB03x
--AaB03x
content-disposition: form-data; name="field1"
Joe Blow
--AaB03x
content-disposition: form-data; name="pics"; filename="file1.txt"
Content-Type: text/plain
... contents of file1.txt ...
--AaB03x--
多文件：
Content-type: multipart/form-data, boundary=AaB03x
--AaB03x
content-disposition: form-data; name="field1"
Joe Blow
--AaB03x
content-disposition: form-data; name="pics"
Content-type: multipart/mixed, boundary=BbC04y
--BbC04y
Content-disposition: attachment; filename="file1.txt"
其次，python上传文件的几种方法：
1 自己封装HTTP的POST数据包：http//stackoverflowcom/questions/680305/using-multipartposthandler-to-post-form-data-with-python
import httplibimport mimetypesdef post_multipart(host, selector, fields, files): content_type, body = encode_multipart_formdata(fields, files) h = httplib.HTTP(host) h.putrequest('POST', selector) h.putheader('content-type', content_type) h.putheader('content-length', str(len(body))) h.endheaders() h.send(body) errcode, errmsg, headers = h.getreply() return h.file.read() def encode_multipart_formdata(fields, files): LIMIT = '----------lImIt_of_THE_fIle_eW_$' CRLF = '\r\n' L = [] for (key, value) in fields: L.append('--' + LIMIT) L.append('Content-Disposition: form-data; name="%s"' % key) L.append('') L.append(value) for (key, filename, value) in files: