inputStream，F(xiàn)ormDataContentDisposition

問題描述：使用jersey框架上傳，通過inputstream 不能獲取到輸入流的字節(jié)大小

解決：將輸入流寫入到輸出流中讀取

byte[] buffer =new byte[1024];

ByteArrayOutputStream outSteam =new ByteArrayOutputStream();

int ls = -1;

try {

while ((ls = inputStream.read(buffer)) != -1) {

outSteam.write(buffer,0, ls);

}

outSteam.close();

inputStream.close();

}catch (IOException e) {

e.printStackTrace();

}

int size = outSteam.size();