Kafka创建Topic报错：java.lang.ClassNotFoundException: kafka.admin.TopicCommand

问题详情 #

执行创建Topic命令：

.\bin\kafka-topics.sh --bootstrap-server localhost:9092 --create --topic myTopic --partitions 1 --replication-factor 1

出现异常：
caused by: java.lang.ClassNotFoundException: kafka.admin.TopicCommand

环境信息：

• Kafka版本：3.3.1
• kafka-topics.sh路径：C:\kafka_2.13-3.3.1\bin
• 脚本内容：

#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
# 
#    http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

exec $(dirname $0)/kafka-run-class.sh kafka.admin.TopicCommand "$@"

解决步骤 #

• 使用Windows专用脚本
  在Windows系统下，kafka-topics.sh是为Linux/macOS设计的脚本，应该改用官方提供的Windows版本脚本。执行以下命令：

  .\bin\windows\kafka-topics.bat --bootstrap-server localhost:9092 --create --topic myTopic --partitions 1 --replication-factor 1
  

• 检查安装包完整性
  如果执行bat脚本仍报错，检查Kafka安装目录下的libs文件夹，确认存在kafka_2.13-3.3.1.jar和kafka-admin-client-3.3.1.jar。若文件缺失，重新下载完整的Kafka 3.3.1二进制安装包。

• （不推荐）修改sh脚本适配Windows
  若一定要使用kafka-topics.sh，需将脚本最后一行的kafka-run-class.sh改为Windows版本的kafka-run-class.bat，修改后的内容：

  exec $(dirname $0)/kafka-run-class.bat kafka.admin.TopicCommand "$@"
  

  但优先推荐使用官方提供的bat脚本，避免兼容性问题。

内容的提问来源于stack exchange，提问作者Faheem azaz Bhanej