Java Base64 解码示例：将 Base64 编码字符串还原为原始数据

import java.util.Base64;

String encodedString = 'HVsoJoTflSlh5/2B8GTZ3YtTjiH9UsV/i1OOIf1SxX8='; byte[] decodedBytes = Base64.getDecoder().decode(encodedString); String decodedString = new String(decodedBytes); System.out.println(decodedString);