微信小程序上传图片springboot接口带判断条件
@Value("${jc.tmp.path}") 取出在application中配置的图片存储路径
privateStringlocalImgPath;
/**
* InputStream,String,File相互转化
*@paramins
*@paramfile
*/
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);
}
}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();
}
}
}
//处理文件上传
@RequestMapping(value ="/uploadimg", method = RequestMethod.POST, consumes ="multipart/form-data")
@ResponseBody
publicString uploadImg(HttpServletRequest request)throwsException
{
ApplicationPart image = (ApplicationPart) request.getPart("file");
InputStream in;
String a ="error";
//1.在缓存里有
if(image ==null)
{
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
MultipartFile mfile = multipartRequest.getFile("file");
in = mfile.getInputStream();
String webPath = request.getServletContext().getRealPath("/");
System.out.println("webPath*****************"+ webPath);
String path =localImgPath+ mfile.getOriginalFilename();
System.out.println("save path:**************"+ path);
inputstreamtofile(in,newFile(path));
a = mfile.getOriginalFilename();
}else //2.传上来的图片直接在流里有
{
in = image.getInputStream();
String webPath = request.getServletContext().getRealPath("/");
System.out.println("webPath*****************"+ webPath);
String path =localImgPath+ image.getSubmittedFileName();
System.out.println("save path:**************"+ path);
inputstreamtofile(in,newFile(path));
a = image.getSubmittedFileName();
}
//String[] names=a.split("\\.");
returna;
}
在application中定义 文件取出或保存的路径
jc.tmp.path=/home/cus/tmp/
