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Vulnerability Component
— Apache Coyote
Detail:
coyote 是 tomcat 的 Connector 框架的名字,简单说就是coyote 来处理底层的 socket,并将 http 请求、响应等字节流层面的东西,包装成 Request 和 Response 两个类(这两个类是 tomcat 定义的,而非 servlet 中的ServletRequest和ServletResponse),供容器使用;同时,为了能让我们编写的 servlet 能够得到ServletRequest,tomcat 使用了 facade 模式,将比较底层、低级的 Request 包装成为 ServletRequest(这一过程通常发生在Wrapper容器一级),这也是为很多人津津乐道的 tomcat 对设计模式的一个巧妙的运用,具体过程将会在以后讨论。
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