public class Base64Util { /** * @Description: 将base64编码字符串转换为图片 * @Author: * @CreateTime: * @param imgStr * base64编码字符串 * @param path * 图片路径-具体到文件 * @return */ public static boolean generateImage(String imgStr, String path) { if (imgStr == null) return false; BASE64Decoder decoder = new BASE64Decoder(); try { // 解密 byte[] b = decoder.decodeBuffer(imgStr); // 处理数据 for (int i = 0; i < b.length; ++i) { if (b[i] < 0) { b[i] += 256; } } OutputStream out = new FileOutputStream(path); out.write(b); out.flush(); out.close(); return true; } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); return false; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); return false; } } /** * @Description: 根据图片地址转换为base64编码字符串 * @Author: * @CreateTime: * @return */ public static String getImageStr(String imgFile) { InputStream inputStream = null; byte[] data = null; try { inputStream = new FileInputStream(imgFile); data = new byte[inputStream.available()]; inputStream.read(data); inputStream.close(); } catch (IOException e) { e.printStackTrace(); } // 加密 BASE64Encoder encoder = new BASE64Encoder(); return encoder.encode(data); } /** * 测试 */ public static void main(String[] args) { String strImg = getImageStr("E:/捕获.PNG"); System.out.println(strImg); generateImage(strImg, "E:/捕获(1).PNG"); } }