/**
* byte(字節)根據長度轉成kb(千字節)和mb(兆字節)
*
* @param bytes
* @return
*/
public static String bytes2kb(long bytes) {
BigDecimal filesize = new BigDecimal(bytes);
BigDecimal megabyte = new BigDecimal(1024 * 1024);
float returnValue = filesize.divide(megabyte, 2, BigDecimal.ROUND_UP)
.floatValue();
if (returnValue > 1)
return (returnValue + "MB");
BigDecimal kilobyte = new BigDecimal(1024);
returnValue = filesize.divide(kilobyte, 2, BigDecimal.ROUND_UP)
.floatValue();
return (returnValue + "KB");
}
/**
* @Title: pathSize
*@param imgPath
*@return 根據圖片地址返回圖片大小kb或者 Mb
* @return String
* @throws
* @add (default no)
*/
public String pathSize(String imgPath) {
File file = new File(imgPath);
FileInputStream fis;
int fileLen = 0;
try {
fis = new FileInputStream(file);
fileLen = fis.available();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return bytes2kb(fileLen);
}