升级到 Spring Boot 4 的第一个下午，最常见的报错长这样：应用起不来，日志里只有一句——某个配置属性绑定失败，原因是找不到对应的类。Java 代码一行没动，卡住的是 application.yml 里的一个键。 这类问题在 Boot 4 ...

You often hear that "AI makes coding faster." But when you actually try it in a real-world business system environment, don't ...

「AIでコーディングが速くなる」とよく聞きます。 でも、業務システムの現場で実際に試すと、こんな壁にぶつかりませんか。 会社のコードをどこまで貼っていいのか分からない 出てきたコードが古いバージョンの書き方で、そのままでは動かない ...

There are very good reasons for Java’s long-lived popularity as a server-side platform. It combines unbeatable maturity and breadth with a long and ongoing history of innovation. Using Spring adds a ...

Spring AI 2.0 brings the Java AI framework to a new baseline built for Spring Boot 4.x and Spring Framework 7. The release improves agentic app development with unified tool calling, progressive tool ...

Use Spring MVC MultipartFile, Java Path APIs and the browser fetch API to upload files asynchronously and save them safely on the server. See how to read an array's length, define its fixed size, ...

In many ways, the Spring Framework's extremely flexible ability to integrate with other powerful frameworks makes it ideal for building clusters of microservices, especially using Spring Boot and ...

Use Spring MVC MultipartFile, Java Path APIs and the browser fetch API to upload files asynchronously and save them safely on the server. Follow the essential steps to download Java 21, configure ...