/**
* 圖檔轉化成base64字元串
* @param imgFilePath 待處理的圖檔
* @return
*/
public static String GetImageStr(String imgFilePath)
{
//将圖檔檔案轉化為位元組數組字元串,并對其進行Base64編碼處理
InputStream in = null;
byte[] data = null;
//讀取圖檔位元組數組
try
{
in = new FileInputStream(imgFilePath);
data = new byte[in.available()];
in.read(data);
in.close();
}
catch (IOException e)
{
e.printStackTrace();
try
{
if(in!=null)
in.close();
}
catch (Exception e2)
{
e2.printStackTrace();
}
}
//對位元組數組Base64編碼
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(data);//傳回Base64編碼過的位元組數組字元串
}
/**
* base64字元串轉化成圖檔
* @param imgStr
* @return
*/
public static boolean GenerateImage(String imgStr,String saveImgFilePath)
{
//對位元組數組字元串進行Base64解碼并生成圖檔
if (imgStr == null) //圖像資料為空
return false;
OutputStream out = null;
try
{
//Base64解碼
BASE64Decoder decoder = new BASE64Decoder();
byte[] b = decoder.decodeBuffer(imgStr);
for(int i=;i<b.length;++i)
{
if(b[i]<)
b[i]+=;//調整異常資料
}
//生成jpeg圖檔
out = new FileOutputStream(saveImgFilePath);
out.write(b);
out.flush();
out.close();
return true;
}
catch (Exception e)
{
e.printStackTrace();
try
{
if(out!=null)
{
out.flush();
out.close();
}
}
catch (Exception e2)
{
e2.printStackTrace();
}
return false;
}
}