Java高级特性: try-with-resource

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本文深入探讨了try-with-resource语法在Java中的应用，重点介绍了如何利用这一特性自动关闭资源，避免资源泄露，提高代码的健壮性和效率。通过try-with-resource，可以更简洁地管理诸如文件句柄、输入输出流等资源，确保即使在异常情况下也能正确释放资源。

try-with-resource

- 语法介绍

语法介绍

我们在使用一些资源的时候，比如文件句柄，输入输出流，需要在使用结束时释放相关资源，调用close接口。
通常我们的写法是用try-catch将功能代码包起来，然后在finally里面，释放资源。
try-with-resoure

Connections, streams, files, and other classes that implement the Closeable interface or its super-interface, AutoCloseable, needs to be closed after use. Further, that close call must be made in a finally block otherwise an exception could keep the call from being made. Preferably, when class implements AutoCloseable, resource should be created using “try-with-resources” pattern and will be closed automatically.

Failure to properly close resources will result in a resource leak which could bring first the application and then perhaps the box it’s on to their knees.