充电桩互联互通 hmac-md5加密算法 HmacMd5Signatureimport java.nio.charset.StandardCharsets; import java.security.MessageDigest; import java.util.Arrays; public class HmacMd5Signature { private static final byte IPAD = 0x36; private static final byte OPAD = 0x5C; public static String hmacMd5(String data, String sigSecret) throws Exception { byte[] keyBytes = sigSecret.getBytes(StandardCharsets.UTF_8); byte[] dataBytes = data.getBytes(StandardCharsets.UTF_8); byte[] paddedKey = Arrays.copyOf(keyBytes, 64); byte[] xorIpad = new byte[64]; byte[] xorOpad = new byte[64]; for (int i = 0; i < 64; i++) { xorIpad[i] = (byte) (paddedKey[i] ^ IPAD); xorOpad[i] = (byte) (paddedKey[i] ^ OPAD); } MessageDigest md = MessageDigest.getInstance("MD5"); md.update(xorIpad); md.update(dataBytes); byte[] hashIpad = md.digest(); byte[] finalData = new byte[64 + hashIpad.length]; System.arraycopy(xorOpad, 0, finalData, 0, 64); System.arraycopy(hashIpad, 0, finalData, 64, hashIpad.length); md.reset(); md.update(finalData); byte[] hmacMd5 = md.digest(); StringBuilder result = new StringBuilder(); for (byte b : hmacMd5) { result.append(String.format("%02x", b)); } return result.toString().toUpperCase(); }

Linux 使用docker 安装 单机 zookeeper和kafka zookeeper:docker run -d --name zookeeper -p 2181:2181 -p 2888:2888 -p 3888:3888 --security-opt seccomp=unconfined debezium/zookeeperkafkadocker run -d --name ab_dkafka -p 9092:9092 \ -e KAFKA_BROKER_ID=0 -e KAFKA_ZOOKEEPER_CONNECT=192.168.20.109:2181 \ -e ALLOW_PLAINTEXT_LISTENER=yes \ -e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://192.168.20.109:9092 -e \ KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092 -t bitnami/kafka:2.7.0

mysql 导入导出 mysqldump -h [HOST] -P 5503 -u mysql -p [DATABSE_NAME] [TABLE_NAME] --where='STATE = 0'>XXX.sql nohup mysql -u root -p["PASSWORD"] --database=[DATABASE_NAME] -e 'source /home/XXX.sql' &

博客接入又拍云CDN 又拍云

simple-vue-upload + spring boot 实现大文件分片上传 simple-vue-upload,文件分片上传