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samples for www.pkslow.com: Java, Spring Boot, Spring Cloud, Docker, Kubernetes, Cloud, Big Data

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# pkslow-samples
- [GitHub](https://github.com/LarryDpk/pkslow-samples)
- [Gitee](https://gitee.com/larrydpk/pkslow-samples)

There articles and code samples on website  www.pkslow.com.

Mainly Topics: Java, Spring Boot, Spring Cloud, Docker, Kubernetes, Cloud, Big Data, Python

Build Package:
```shell script
mvn clean install
```

# 南瓜慢说
你终于来了！ 欢迎来到**南瓜慢说**的世界。

南瓜慢说的个人网站为 www.pkslow.com ，寓意就是南瓜慢说(pumpkin slow). 该网站会记录我最新和最全的文章，部分文章会同步其它平台。

对应的GitHub仓库为：[pkslow-samples](https://github.com/LarryDpk/pkslow-samples)，该仓库主要是个人技术文章和相关的代码示例。
主要涉及的内容有：
- Java
- Spring Boot
- Spring Cloud
- Docker
- Kubernetes
- Cloud
- Big Data
- Python
- AI

可以通过以下命令构建项目：

```bash
mvn clean install
```

将坚持记录所思所想，希望带给自己成长的同时，能帮助到别人。

做一个简简单单的人，

做一个普普通通的人，

做一个不伤害社会的人，

做一个至少有一点点益处的人。

<br/>
过好自己渺小的一生，而不至于虚无、后悔。

每一个不曾起舞的日子，都是对生命的辜负。

> 敢一行，则予知。脚踏实地，知行合一。

# Spring Boot

## GraalVM相关

[GraalVM和Spring Native尝鲜，一步步让Springboot启动飞起来，66ms完成启动](https://www.pkslow.com/archives/spring-boot-native-graalvm)
- Code: [/spring-boot/spring-boot-native-graalvm](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-boot-native-graalvm)

[Spring Native打包本地镜像，无需通过Graal的maven插件buildtools](https://www.pkslow.com/archives/spring-boot-native-without-buildtools)
- Code: [/spring-boot/spring-boot-native-without-buildtools](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-boot-native-without-buildtools)

[Quarkus入门体验，22ms启动一个Web服务](https://www.pkslow.com/archives/quarkus-quickstart)
- Code: [/other/quarkus-quickstart](https://github.com/LarryDpk/pkslow-samples/tree/master/other/quarkus-quickstart)

## 配置

[Spring自定义转换类，让@Value更方便](https://www.pkslow.com/archives/spring-custom-convert)
- Code: [/spring-cloud/rest-service](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/rest-service)

[使用SpringBootCondition更自由地定义条件化配置](https://www.pkslow.com/archives/springbootcondition)
- Code: [/spring-boot/springboot-common](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-common)

[用ApplicationContextRunner测试配置类](https://www.pkslow.com/archives/test-config-class-with-applicationcontextrunner)
- Code: [/spring-boot/springboot-common](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-common)

[Bean初始化操作initMethod、@PostConstruct和InitializingBean](https://www.pkslow.com/archives/bean-initializing)
- Code: [/spring-boot/springboot-common](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-common)

## 监控

[用InfluxDB+Grafana监控Springboot应用](https://www.pkslow.com/archives/springboot-monitored-by-influxdb-grafana)
- Code: [/spring-boot/springboot-influxdb](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-influxdb)

## 数据操作

[Spring Data JPA的Audit功能，审计数据库的变更](https://www.pkslow.com/archives/spring-data-jpa-audit)
- Code: [/spring-boot/spring-data-jpa-audit](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-data-jpa-audit)

## Web开发

[Spring MVC获取HTTP请求头的两种方式](https://www.pkslow.com/archives/spring-mvc-get-headers)
- Code: [/spring-boot/spring-data-jpa-audit](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-data-jpa-audit)

[在Spring WebFlux的任何地方获取Request对象](https://www.pkslow.com/archives/spring-webflux-get-request)
- Code: [/spring-cloud/webflux-service](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/webflux-service)

[在Spring Boot中整合Katharsis，来快速开发JSON API的Web应用](https://www.pkslow.com/archives/springboot-katharsis)
- Code: [/spring-boot/spring-boot-katharsis](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-boot-katharsis)

[Spring在Filter中记录Web请求Request和返回Response的内容及时长](https://www.pkslow.com/archives/spring-log-request-response)
- Code: [/spring-boot/springboot-common](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-common)

## Security
[Springboot集成Spring Security实现JWT认证](https://www.pkslow.com/archives/springboot-spring-security-jwt-web)
- Code: [/spring-boot/spring-security-jwt](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-security-jwt)

[Springboot WebFlux集成Spring Security实现JWT认证](https://www.pkslow.com/archives/springboot-spring-security-jwt-webflux)
- Code: [/spring-boot/spring-security-jwt-webflux](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-security-jwt-webflux)

## Spring Batch
[通过例子讲解Spring Batch入门，优秀的批处理框架](https://www.pkslow.com/archives/spring-batch-introduction)
- Code: [/other/spring-batch/spring-batch-simple](https://github.com/LarryDpk/pkslow-samples/tree/master/other/spring-batch/spring-batch-simple)

[Spring Batch远程分区的本地Jar包模式](https://www.pkslow.com/archives/spring-batch-remote-partition-local-jar)
- Code: [/other/spring-batch/remote-partition-local](https://github.com/LarryDpk/pkslow-samples/tree/master/other/spring-batch/remote-partition-local)

## 其它

[Spring Boot Actuator show the git and build info](https://www.pkslow.com/archives/springboot-actuator-git-build-info-en)
- Code: [/spring-boot/springboot-common](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-common)

[Spring Boot通过Actuator显示git和build的信息](https://www.pkslow.com/archives/springboot-actuator-git-build-info)
- Code: [/spring-boot/springboot-common](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-common)

[Spring AOP与AspectJ的对比及应用](https://www.pkslow.com/archives/spring-aop-vs-aspectj)
- Code: [/spring-boot/springboot-aspectj](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-aspectj)

[Springboot整合AOP和注解，实现丰富的切面功能](https://www.pkslow.com/archives/springboot-aspectj-annotation)
- Code: [/spring-boot/springboot-aspectj](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-aspectj)

[Spring Boot Integration with Google Bard](https://www.pkslow.com/archives/spring-boot-google-bard)
[Spring Boot整合Google Bard - Web接口访问Google AI聊天机器人](https://www.pkslow.com/archives/spring-boot-google-bard-cn)
- Code: [spring-boot/spring-boot-google-bard](https://github.com/LarryDpk/pkslow-samples/blob/master/spring-boot/spring-boot-google-bard)

# Spring Cloud

## Spring Cloud Data Flow

[Spring Cloud Data Flow整合UAA使用外置数据库和API接口](https://www.pkslow.com/archives/spring-cloud-dataflow-uaa-api)
- Code: [/spring-cloud/cloudfoundry-uaa-server](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/cloudfoundry-uaa-server)

[Spring Cloud Data Flow整合Cloudfoundry UAA服务做权限控制](https://www.pkslow.com/archives/spring-cloud-dataflow-uaa)
- Code: [/spring-cloud/cloudfoundry-uaa-server](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/cloudfoundry-uaa-server)

[Spring Cloud Data Flow整合UAA之使用LDAP进行账号管理](https://www.pkslow.com/archives/spring-cloud-dataflow-uaa-ldap)
- Code: [/spring-cloud/ldap-server](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/ldap-server)

## Spring Cloud Stream
[整合Spring Cloud Stream Binder与RabbitMQ进行消息发送与接收](https://www.pkslow.com/archives/spring-cloud-stream-binder-rabbit)
- Code: [/spring-cloud/spring-cloud-stream/spring-cloud-stream-binder-rabbit](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/spring-cloud-stream/spring-cloud-stream-binder-rabbit)

[整合Spring Cloud Stream Binder与Kafka进行消息发送与接收](https://www.pkslow.com/archives/spring-cloud-stream-binder-kafka)
- Code: [/spring-cloud/spring-cloud-stream/spring-cloud-stream-binder-kafka](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/spring-cloud-stream/spring-cloud-stream-binder-kafka)

## 其它

[Spring Cloud Gateway简单入门，强大的微服务网关](https://www.pkslow.com/archives/spring-cloud-gateway-introduction)
- Code: [/spring-cloud/spring-cloud-gateway](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/spring-cloud-gateway)

[Spring Cloud服务发现组件Eureka](https://www.pkslow.com/archives/spring-cloud-eureka)
- Code: [/spring-cloud/spring-cloud-eureka](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/spring-cloud-eureka)

[Spring Cloud Service Discovery with Netflix Eureka](https://www.pkslow.com/archives/spring-cloud-eureka-en)
- Code: [/spring-cloud/spring-cloud-eureka](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/spring-cloud-eureka)

# Docker

[Docker启动PostgreSQL时创建多个数据库](https://www.pkslow.com/archives/docker-postgresql-multiple-databases)
- Code: [/docker/postgresql-multiple-databases](https://github.com/LarryDpk/pkslow-samples/tree/master/docker/postgresql-multiple-databases)

[通过Docker启动DB2，并在Spring Boot整合DB2](https://www.pkslow.com/archives/db2)
- Code: [/spring-boot/spring-data-jpa-db2](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-data-jpa-db2)

[通过Docker启动Solace，并在Spring Boot通过JMS整合Solace](https://www.pkslow.com/archives/solace)
- Code: [/spring-boot/springboot-jms-solace](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/springboot-jms-solace)

# Kubernetes

[最好的Kubernetes客户端Java库fabric8io，快来自定义你的操作](https://www.pkslow.com/archives/kubernetes-client-fabric8io)
- Code: [/kubernetes/kubernetes-client-fabric8io](https://github.com/LarryDpk/pkslow-samples/tree/master/kubernetes/kubernetes-client-fabric8io)

[Kubernetes ConfigMap详解，多种方式创建、多种方式使用](https://www.pkslow.com/archives/kubernetes-configmap)
- Code: [/kubernetes/configmap-springboot](https://github.com/LarryDpk/pkslow-samples/tree/master/kubernetes/configmap-springboot)

[Kubernetes使用Keda进行弹性伸缩，更合理利用资源](https://www.pkslow.com/archives/keda)
- Code: [/kubernetes/keda](https://github.com/LarryDpk/pkslow-samples/tree/master/kubernetes/keda)

[Helm Template初体验，方便管理多环境](https://www.pkslow.com/archives/helm-template)
- Code: [/cloud/helm](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/helm)

# Cloud
[K8ssandra入门-详细记录在Linux上部署K8ssandra到Kubernetes](https://www.pkslow.com/archives/k8ssandra)
- Code: [/cloud/k8ssandra](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/k8ssandra)

[使用Stargate访问K8ssandra，Springboot整合Cassandra](https://www.pkslow.com/archives/k8ssandra-stargatre)
- Code: [/spring-boot/spring-data-cassandra](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-boot/spring-data-cassandra)

## dapr 
[dapr本地托管的服务调用体验与Java SDK的Spring Boot整合](https://www.pkslow.com/archives/dapr-java-sdk-springboot)
- Code: [/cloud/dapr/dapr-springboot](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/dapr/dapr-springboot)

## Google Cloud Platform

[整合Spring Cloud Stream Binder与GCP Pubsub进行消息发送与接收](https://www.pkslow.com/archives/spring-cloud-stream-binder-pubsub)
- Code: [/spring-cloud/spring-cloud-stream/spring-cloud-stream-binder-pubsub](https://github.com/LarryDpk/pkslow-samples/tree/master/spring-cloud/spring-cloud-stream/spring-cloud-stream-binder-pubsub)

[在GCP上创建Cloud SQL的三种方式(Console,gcloud,Terraform)](https://www.pkslow.com/archives/create-gcp-cloudsql)
- Code: [/cloud/terraform/src/main/terraform/gcp/cloudsql](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/gcp/cloudsql)

[Three ways to create Cloud SQL on GCP(Console,gcloud,Terraform)](https://www.pkslow.com/archives/create-gcp-cloudsql-en)
- Code: [/cloud/terraform/src/main/terraform/gcp/cloudsql](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/gcp/cloudsql)

[在GCP上创建GCE的三种方式(Console,gcloud,Terraform)](https://www.pkslow.com/archives/create-gcp-gce)
- Code: [/cloud/terraform/src/main/terraform/gcp/gce](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/gcp/gce)

[通过Terraform创建GCP Pubsub](https://www.pkslow.com/archives/terraform-gcp-pubsub)
- Code: [/cloud/terraform/src/main/terraform/gcp/pubsub](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/gcp/pubsub)

## 《Terraform 101 从入门到实践》
这部分内容在GitHub [terraform-101](https://github.com/LarryDpk/terraform-101)：

[《Terraform 101 从入门到实践》 前言](https://www.pkslow.com/archives/terraform-101-preface)

[《Terraform 101 从入门到实践》 第一章 Terraform初相识](https://www.pkslow.com/archives/terraform-101-introduction)

[《Terraform 101 从入门到实践》 第二章 Providers插件管理](https://www.pkslow.com/archives/terraform-101-providers)

[《Terraform 101 从入门到实践》 第三章 Modules模块化](https://www.pkslow.com/archives/terraform-101-modules)

[《Terraform 101 从入门到实践》 第四章 States状态管理](https://www.pkslow.com/archives/terraform-101-states)

[《Terraform 101 从入门到实践》 第五章 HCL语法](https://www.pkslow.com/archives/terraform-101-hcl)

[《Terraform 101 从入门到实践》 Terraform常用命令](https://www.pkslow.com/archives/terraform-101-commands)

[《Terraform 101 从入门到实践》 Functions函数](https://www.pkslow.com/archives/terraform-101-functions)

## Terraform

[Terraform模块Module管理，聚合资源的抽取与复用](https://www.pkslow.com/archives/terraform-module)
- Code: [/cloud/terraform/src/main/terraform/module-example](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/module-example)

[Terraform入门教程，示例展示管理Docker和Kubernetes资源](https://www.pkslow.com/archives/terraform)
- Code: [/cloud/terraform/src/main/terraform/docker](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/docker)
- Code: [/cloud/terraform/src/main/terraform/kubernetes](https://github.com/LarryDpk/pkslow-samples/tree/master/cloud/terraform/src/main/terraform/kubernetes)

# Java基础

[Protobuf入门与使用示例，高性能的序列化框架](https://www.pkslow.com/archives/protobuf-introduction)
- Code: [/java-basic/protobuf](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/protobuf)

[远程过程调用框架gRPC入门及Java示例代码](https://www.pkslow.com/archives/grpc-introduction)
- Code: [/java-basic/grpc](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/grpc)

[通过Maven用LiquiBase对数据库变更进行版本控制](https://www.pkslow.com/archives/liquibase)
- Code: [/java-basic/liquibase](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/liquibase)

[用pl.pojo.tester测试Pojo类，提高测试覆盖率](https://www.pkslow.com/archives/pl-pojo-tester)
- Code: [/java-basic/pl-pojo-tester](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/pl-pojo-tester)

[Java如何设置代理来访问受限资源](https://www.pkslow.com/archives/java-proxy)
- Code: [/java-basic/java-proxy](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/java-proxy)

[Apache Beam入门及Java SDK开发初体验](https://www.pkslow.com/archives/apache-beam)
- Code: [/bigdata/apache-beam/direct-runner](https://github.com/LarryDpk/pkslow-samples/tree/master/bigdata/apache-beam/direct-runner)

[Java如何测量方法执行时间](https://www.pkslow.com/archives/java-elapsed-time)
- Code: [/java-basic/java-elapsed-time](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/java-elapsed-time)

[Java JDK Proxy和CGLib动态代理示例讲解](https://www.pkslow.com/archives/jdk-cglib-proxy)
- Code: [/java-basic/jdk-cglib-proxy](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/jdk-cglib-proxy)

[Java多种方法实现等待所有子线程完成再继续执行](https://www.pkslow.com/archives/wait-for-threads-to-finish)

- Code: [java-basic/wait-for-threads-to-finish](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/wait-for-threads-to-finish)

[Java multiple ways to wait for threads to finish](https://www.pkslow.com/archives/wait-for-threads-to-finish-en)

- Code: [java-basic/wait-for-threads-to-finish](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/wait-for-threads-to-finish)

[Callable VS Runnable对比](https://www.pkslow.com/archives/runnable-vs-callable)

- Code: [java-basic/runnable-vs-callable](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/runnable-vs-callable)

[Difference Between Callable and Runnable in Java](https://www.pkslow.com/archives/runnable-vs-callable-en)

- Code: [java-basic/runnable-vs-callable](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/runnable-vs-callable)

[Multiple Ways to Download Files from Internet in Java](https://www.pkslow.com/archives/java-sava-a-file-from-internet)
[Java从网上下载文件的几种方式](https://www.pkslow.com/archives/java-sava-a-file-from-internet-cn)

- Code: [java-basic/download-file-from-internet](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/download-file-from-internet)

[How to Install Zookeeper and Kafka Cluster](https://www.pkslow.com/archives/install-zookeeper-and-kafka-cluster)

- Code: [other/install-kafka-cluster](https://github.com/LarryDpk/pkslow-samples/tree/master/other/install-kafka-cluster)

[使用Thumbnailator生成缩略图（缩放、旋转、裁剪、水印）](https://www.pkslow.com/archives/java-thumbnailator)

- Code: [java-basic/download-file-from-internet](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/java-thumbnailator)

# Python

[用Python做了一个广东疫情新增病例动态视频](https://www.pkslow.com/archives/python-covid-19-guangdong)
- Code: [/python/src/main/python/covid-19-Guangdong](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/covid-19-Guangdong)

[用Python库BeautifulSoup来读取广东疫情近期数据并存在csv上](https://www.pkslow.com/archives/python-bs4-csv)
- Code: [/python/src/main/python/beautifulsoup4-example](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/beautifulsoup4-example)

[用GPU来运行Python代码](https://www.pkslow.com/archives/run-python-with-gpu)
- Code: [/python/src/main/python/cuda](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/cuda)

[Use Python to Build a Google Bard Chatbot Client Locally](https://www.pkslow.com/archives/google-bard-python-chatbot)
[用Python基于Google Bard做一个交互式的聊天机器人](https://www.pkslow.com/archives/google-bard-python-chatbot-cn)
- Code: [python/google-bard-python-chatbot](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/google-bard-python-chatbot)

[Google Cloud Platform Tutorial](https://www.pkslow.com/archives/gcp)
- Code: [python/apache-beam](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/apache-beam)
- Code: [python/spark](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/spark)
- Code: [python/airflow](https://github.com/LarryDpk/pkslow-samples/tree/master/python/src/main/python/airflow)

# 数据库

[How to partition the big table in PostgreSQL - Range List Hash](https://www.pkslow.com/archives/postgresql-partitioning-en)
- Code: [/other/postgresql](https://github.com/LarryDpk/pkslow-samples/tree/master/other/postgresql)

[示例讲解PostgreSQL表分区的三种方式](https://www.pkslow.com/archives/postgresql-partitioning)
- Code: [/other/postgresql](https://github.com/LarryDpk/pkslow-samples/tree/master/other/postgresql)

[InfluxDB入门及使用，一个优秀的时序数据库](https://www.pkslow.com/archives/influxdb-introduction)
- Code: [/java-basic/influxdb](https://github.com/LarryDpk/pkslow-samples/tree/master/java-basic/influxdb)

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# Thanks to JetBrains

<h3 align="center">JetBrains</h3>

> Thanks JetBrains to support the project providing such great IDE.

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