base64字符串轉pdf

/**
* @param base64Content
* @param filePath
* base64字符串轉pdf
*/
public static void base64StringToPdf(String base64Content, String filePath) {
BASE64Decoder decoder = new BASE64Decoder();
BufferedInputStream bis = null;
FileOutputStream fos = null;
BufferedOutputStream bos = null;
try {
byte[] bytes = decoder.decodeBuffer(base64Content);// base64編碼內容轉換為字節數組
ByteArrayInputStream byteInputStream = new ByteArrayInputStream(bytes);
bis = new BufferedInputStream(byteInputStream);
File file = new File(filePath);
File path = file.getParentFile();
if (!path.exists()) {
path.mkdirs();
}
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
byte[] buffer = new byte[1024];
int length = bis.read(buffer);
while (length != -1) {
bos.write(buffer, 0, length);
length = bis.read(buffer);
}
bos.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
bos.close();
fos.close();
bis.close();
} catch (IOException e) {
e.printStackTrace();
}

}
}