一：在idea项目中创建IndexController,
//处理文件上传
@RequestMapping(value ="/uploadimg", method = RequestMethod.POST, consumes ="multipart/form-data")
@ResponseBody
publicString uploadImg(HttpServletRequest request)throws Exception
{
1.获取文件请求过来的图片
ApplicationPart image = (ApplicationPart) request.getPart("file");
2.获得图片的输入流
InputStream in = image.getInputStream();
3.获得项目路径
String webPath = request.getServletContext().getRealPath("/");
4.获得文件路径
String path = webPath +"imgupload\\"+ image.getSubmittedFileName();
5.把文件流转成文件
inputstreamtofile(in,newFile(path));
6.文件名切割
String[] names=image.getSubmittedFileName().split(".");
//返回json
returnnames[0];
}
//InputStream,String,File相互转化
private voidinputstreamtofile(InputStream ins, File file)
{
OutputStream os =null;
try
{
os =newFileOutputStream(file);
intbytesRead =0;
byte[] buffer =new byte[8192];
while((bytesRead = ins.read(buffer,0,8192)) != -1)
{
os.write(buffer,0, bytesRead);
}
System.out.println("inputstreamtofile");
}catch(FileNotFoundException e)
{
e.printStackTrace();
}catch(IOException e)
{
e.printStackTrace();
}finally
{
try
{
if(os !=null)
{
os.close();
}
if(ins !=null)
{
ins.close();
}
}catch(IOException e)
{
e.printStackTrace();
}
}
}
