Zuul网关原理及源码解读（草稿版）

妖狐艹你老母 2023-10-07 12:24 15阅读 0赞

网关的本质就是一系列的过滤器Filter。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70]  
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断点调试快捷键：F5进入方法，F6下一行，F7跳出方法，F8下一个断点。这些是活的，每个IDE都不一样。  
shouldFilter：true执行 反之不执行  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70 10]  
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通过ribbon选出一台主机，用域名端口来替换：  
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![在这里插入图片描述][20200410132859801.png]  
网关里用到了责任链模式，双向Filter  
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![在这里插入图片描述][20200410133234718.png]

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使用ConcurrentHashMap存储ZuulFilter  
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过滤器的执行流程：  
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过滤器排序：  
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过滤器顺序：  
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