Spring Boot - 將檔案列表轉成 Flux
書籍推薦@GetMapping("/unable_files")public Flux<FileInfo> wrongListFiles() throws IOException { return Flux.fromIterable(Files.newDi...
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Spring Boot - Flux and RequestBody
<ul style="text-align: left;"><li><div></div></li><li>Controller</li><div style="background-color: #fbfaf8; bord...
Spring Boot - Flux 與 RequestBody
<ul style="text-align: left;"><li><div></div></li><li>Controller</li><div style="background-color: #fbfaf8; bord...
Spring Boot - Helloworld
<div>Download Spring Initializer</div><div>https://start.spring.io/#!type=gradle-project&language=java&platformVersion=2.2.7.RELEAS...
Spring Boot - Helloworld 入門
<div>下載 Spring Initializer</div><div>https://start.spring.io/#!type=gradle-project&language=java&platformVersion=2.2.7.RELEASE&...
Gradle - application
Run No arg main class Java package examples; public class TestMain { public static void main(String[] params) { &n...
Gradle - Application 入門
執行沒有參數的 main class Java package examples; public class TestMain { public static void main(String[] params) { ...
Gradle helloworld task
Edit build.gradle task helloworld { println "Hello world" } List tasks and find helloworld $gradle tasks --all ... Ot...
Gradle Helloworld Task 入門
編輯 build.gradle task helloworld { println "Hello world" } 列出所有 task 並找到 helloworld $gradle tasks --all ... Other task...
Gradle Helloworld - Main Class
Reference https://openhome.cc/Gossip/Spring/Gradle.html Thanks 良葛格, his explanation is so simple and good to read and practice!! Class package exam...
Gradle Helloworld - 主程式入門
參考資料 https://openhome.cc/Gossip/Spring/Gradle.html 感謝良葛格，他的說明簡單明瞭又好上手！！ Class package examples; public class HelloMain { &nbs...
Microservice Patterns - Managing transactions with sagas - 4.3 Handling the lack of isolation
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 The isolation property of ACID transactions ensure...
Microservice Patterns - 用 Saga 管理交易 - 4.3 處理缺乏隔離性的問題
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 ACID 交易的隔離性確保同時執行多個交易的結果，跟以某種串行順序執行它們的結果相同 隔離性讓撰寫同時執行...
Microservice Patterns - Managing transactions with sagas - 4.2 Coordinating sagas
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Sagas process Saga init by system command Coordina...
Microservice Patterns - 用 Saga 管理交易 - 4.2 協調 Saga
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Saga 流程 Saga 由系統命令啟動 協調邏輯選擇並告訴第一個 Saga 參與者執行本地交易 完成後，...
Microservice Patterns - 4.1 Managing transactions with sagas - Transaction management in a microservice architecture
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Challenges In a monolithic system, a createOrder oper...
Microservice Patterns - 4.1 用 Saga 管理交易 - Microservice 架構中的交易管理
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 挑戰 在單體系統中，createOrder 操作只需要依賴帶有 transactional annotation 的...
Understand java.lang.OutOfMemoryError: Direct buffer memory
Introduction One day, Cassandra stop listening for thrift client until restart it manually. After checking Cassandra log, found it encountered OutOfMemory...