import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class FileToBase64 { /** * <p>将文件转成base64 字符串</p> * @param path 文件路径 * @return * @throws Exception */ public static String encodeBase64File(String path) throws Exception { File file = new File(path); FileInputStream inputFile = new FileInputStream(file); byte[] buffer = new byte[(int)file.length()]; inputFile.read(buffer); inputFile.close(); return new BASE64Encoder().encode(buffer); } /** * <p>将base64字符解码保存文件</p> * @param base64Code * @param targetPath * @throws Exception */ public static void decoderBase64File(String base64Code,文件为String targetPath) throws Exception { byte[] buffer = new BASE64Decoder().decodeBuffer(base64Code); FileOutputStream out = new FileOutputStream(targetPath); out.write(buffer); out.close(); } /** * <p>将base64字符保存文本文件</p> * @param base64Code * @param targetPath * @throws Exception */ public static void toFile(String base64Code,String targetPath) throws Exception { byte[] buffer = base64Code.getBytes(); FileOutputStream out = new FileOutputStream(targetPath); out.write(buffer); out.close(); } public static void main(String[] args) { try { String base64Code =encodeBase64File("/Users/Crazy/Pictures/zyb2.jpg"); System.out.println(base64Code); decoderBase64File(base64Code, "/Users/Crazy/Desktop/zyb.png"); toFile(base64Code, "/Users/Crazy/Desktop/zyb.txt"); } catch (Exception e) { e.printStackTrace(); } } } 【本文是专栏作者张勇波的云服务器提供商原创文章，服务器租用转载请通过获取作者授权】
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