package com.itzcl; import java.security.GeneralSecurityException; import java.security.MessageDigest; import java.security.ProviderException; import org.apache.commons.codec.binary.Hex; public class Demo { public static void main(String[] args) { String password = "12345";//需要sha-1加密的密码 byte[] bytes = password.getBytes();//将密码转换为byte数组 byte[] sha1 = sha1(bytes);//调用加密方法 char[] encodeHex = Hex.encodeHex(sha1); System.out.println(new String(encodeHex));//输出结果转换 } public static byte[] sha1(byte[] data) { try { MessageDigest md = MessageDigest.getInstance("SHA-1"); md.update(data); return md.digest(); } catch (GeneralSecurityException var2) { throw new ProviderException(var2); } } } 文章来源: sha-1加密方法