笔记内容主要来源于极客时间的《高并发系统设计40问》，有改动。 高并发系统设计三大目标 高性能 高可用 易扩展 高性能 性能优化要以问题为导向，在合适的度量指标的参考下，持续地做性能优化。 常用的性能度量指标就是响应时间，相比平均响应时间和最大响应时间，分位响应时间是更合理的选择。90分位响应时间表示百分之90的请求在这个响应时间之内。 一般的，一个优秀系统的响应时间...

What is microservice? Microservice is small, independent applications that work together to provide the functionality of a compelte application. It is a way of factoring an application into small-s...

What is Spring Integration? Spring Integration is a ready-to-use implementation of many of the integration patterns that are catalogued in Enterprise Integration Patterns. Each pattern is implement...

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What is Spring MVC? Spring MVC是一个强大的web framework. Spring MVC can also be used to create REST APIs. controller A controller’s primary job is to handle HTTP requests and either hand a request off ...

The first version of Spring was released in October 2002 and consisted of a small core with an inversion of control (IoC) container that was easy to configure and use. Over the years, Spring has be...