查看jks文件的MD5

From: https://blog.51cto.com/u_16175512/7903626

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package com.lckj.toolbox.util;   import lombok.extern.slf4j.Slf4j; import lombok.var;   import java.io.FileInputStream; import java.security.KeyStore; import java.security.MessageDigest;   @Slf4j public class JksMD5Util {       public static void main(String[] args) {         var md5 = getMD5("E:\\xxxx\\android.jks", "112233");         log.info("md5 = {}", md5);     }       public static String getMD5(String jksFilePath, String jksPassword) {         String md5Value = null;         try {             // 打开.jks文件             FileInputStream fis = new FileInputStream(jksFilePath);               // 实例化KeyStore对象             KeyStore keyStore = KeyStore.getInstance("JKS");               // 加载.jks文件             keyStore.load(fis, jksPassword.toCharArray());               // 计算MD5值             MessageDigest md = MessageDigest.getInstance("MD5");             byte[] buffer = new byte[8192];             int length;             while ((length = fis.read(buffer)) != -1) {                 md.update(buffer, 0, length);             }             byte[] digest = md.digest();               // 转换为十六进制字符串             StringBuilder sb = new StringBuilder();             for (byte b : digest) {                 sb.append(String.format("%02X", b & 0xff));             }             md5Value = sb.toString();               // 关闭文件流             fis.close();         } catch (Exception e) {             e.printStackTrace();         }         return md5Value;     }   }