1. Location的作用

Location指令的作用是根據用戶請求的URI來執行不同的應用，也就是根據用戶請求的網站URL進行匹配，匹配成功即進行相關的操作。

2.Location的語法

• 以=開頭表示精確匹配,如 A 中只匹配根目錄結尾的請求，后面不能帶任何字符串。
• ^~開頭表示uri以某個常規字符串開頭，不是正則匹配
• ~?開頭表示區分大小寫的正則匹配;
• ~*?開頭表示不區分大小寫的正則匹配
• /?通用匹配, 如果沒有其它匹配,任何請求都會匹配到

3.Location正則案例

1.精確匹配,/后面不能帶任何字符：

<span style="color:#000000"><code class="language-java">server <span style="color:#969896">{</span>listen <span style="color:#c76b29">80</span><span style="color:#969896">;</span>server_name www<span style="color:#969896">.</span>baidu<span style="color:#969896">.</span>com<span style="color:#969896">;</span>#精確匹配<span style="color:#969896">,</span>注解后面不能帶任何字符location <span style="color:#df5000">=</span><span style="color:#df5000">/</span> <span style="color:#969896">{</span>proxy_pass http<span style="color:#df5000">:</span><span style="color:#df5000">/</span><span style="color:#df5000">/</span><span style="color:#c76b29">127.0</span><span style="color:#c76b29">.0</span><span style="color:#c76b29">.1</span><span style="color:#df5000">:</span><span style="color:#c76b29">8080</span><span style="color:#969896">;</span>index index<span style="color:#969896">.</span>html index<span style="color:#969896">.</span>htm<span style="color:#969896">;</span><span style="color:#969896">}</span> <span style="color:#969896">}</span> </code></span>

2.匹配所有以/開頭請求：

<span style="color:#000000"><code class="language-java">server <span style="color:#969896">{</span>listen <span style="color:#c76b29">80</span><span style="color:#969896">;</span>server_name www<span style="color:#969896">.</span>baidu<span style="color:#969896">.</span>com<span style="color:#969896">;</span>#匹配所有以<span style="color:#df5000">/</span>開頭請求 location <span style="color:#df5000">/</span> <span style="color:#969896">{</span>proxy_pass http<span style="color:#df5000">:</span><span style="color:#df5000">/</span><span style="color:#df5000">/</span><span style="color:#c76b29">127.0</span><span style="color:#c76b29">.0</span><span style="color:#c76b29">.1</span><span style="color:#df5000">:</span><span style="color:#c76b29">8080</span><span style="color:#969896">;</span>index index<span style="color:#969896">.</span>html index<span style="color:#969896">.</span>htm<span style="color:#969896">;</span><span style="color:#969896">}</span><span style="color:#969896">}</span> </code></span>

3.比如以開頭/ylw_8080攔截 默認開啟不區分大小寫：

<span style="color:#000000"><code class="language-java">server <span style="color:#969896">{</span>listen <span style="color:#c76b29">80</span><span style="color:#969896">;</span>server_name www<span style="color:#969896">.</span>baidu<span style="color:#969896">.</span>com<span style="color:#969896">;</span>### 以開頭<span style="color:#df5000">/</span>ylw_8080 最終跳轉到http<span style="color:#df5000">:</span><span style="color:#df5000">/</span><span style="color:#df5000">/</span><span style="color:#c76b29">127.0</span><span style="color:#c76b29">.0</span><span style="color:#c76b29">.1</span><span style="color:#df5000">:</span><span style="color:#c76b29">8080</span><span style="color:#df5000">/</span><span style="color:#969896">;</span>location <span style="color:#df5000">/</span>ylw_8080<span style="color:#df5000">/</span> <span style="color:#969896">{</span>proxy_pass http<span style="color:#df5000">:</span><span style="color:#df5000">/</span><span style="color:#df5000">/</span><span style="color:#c76b29">127.0</span><span style="color:#c76b29">.0</span><span style="color:#c76b29">.1</span><span style="color:#df5000">:</span><span style="color:#c76b29">8080</span><span style="color:#df5000">/</span><span style="color:#969896">;</span>index index<span style="color:#969896">.</span>html index<span style="color:#969896">.</span>htm<span style="color:#969896">;</span><span style="color:#969896">}</span>### 以開頭<span style="color:#df5000">/</span>ylw_8080 最終跳轉到http<span style="color:#df5000">:</span><span style="color:#df5000">/</span><span style="color:#df5000">/</span><span style="color:#c76b29">127.0</span><span style="color:#c76b29">.0</span><span style="color:#c76b29">.1</span><span style="color:#df5000">:</span><span style="color:#c76b29">8081</span><span style="color:#df5000">/</span><span style="color:#969896">;</span>location <span style="color:#df5000">/</span>ylw_8081<span style="color:#df5000">/</span> <span style="color:#969896">{</span>proxy_pass http<span style="color:#df5000">:</span><span style="color:#df5000">/</span><span style="color:#df5000">/</span><span style="color:#c76b29">127.0</span><span style="color:#c76b29">.0</span><span style="color:#c76b29">.1</span><span style="color:#df5000">:</span><span style="color:#c76b29">8081</span><span style="color:#df5000">/</span><span style="color:#969896">;</span>index index<span style="color:#969896">.</span>html index<span style="color:#969896">.</span>htm<span style="color:#969896">;</span><span style="color:#969896">}</span><span style="color:#969896">}</span> </code></span> 注意：開頭區分大小寫！

總結

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