获取file文件的md5值

jar包引用

<dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>20041127.091804</version>
</dependency>

获取file的md5值

public static String getMd5(File file) throws IOException {
        BufferedInputStream input = new BufferedInputStream(new FileInputStream(file));
        try {
            return DigestUtils.md5Hex(input); //这里就是获取md5值得方法
        } catch (IOException e) {
            throw e;
        } finally {
            IOUtils.closeQuietly(input);
        }
    }