Nginx location配置详解-互传网

结论，简单理解为：代理的地址在端口以后如果有东西(包括目录或者/),转发地址会去除location匹配的目录(根据匹配的字符，如果是/api则去除api，如果是/api/则去除/api/)
如果代理地址到端口就没了(没有目录或/),那么转发地址会保留匹配目录
后期对照 alias与root的区别

参考一：proxy_pass

1.location和proxy_pass都带/，则真实地址不带location匹配目录

<code class=" language-cpp">location <span class="token operator">/</span>api<span class="token operator">/</span><span class="token punctuation">{</span>proxy_pass http<span class="token operator">:</span><span class="token operator">/</span><span class="token operator">/</span><span class="token number">127.0</span><span class="token number">.0</span><span class="token number">.1</span><span class="token operator">:</span><span class="token number">8080</span><span class="token operator">/</span><span class="token punctuation">;</span><span class="token punctuation">}</span>
</code>

访问地址：www.test.com/api/upload-->http://127.0.0.1:8080/upload

2.location不带/，proxy_pass带/，则真实地址会带/

<code class=" language-cpp">location <span class="token operator">/</span>api<span class="token punctuation">{</span>proxy_pass http<span class="token operator">:</span><span class="token operator">/</span><span class="token operator">/</span><span class="token number">127.0</span><span class="token number">.0</span><span class="token number">.1</span><span class="token operator">:</span><span class="token number">8080</span><span class="token operator">/</span><span class="token punctuation">;</span><span class="token punctuation">}</span>
</code>

访问地址： www.test.com/api/upload-->http://127.0.0.1:8080//upload

3.location带/，proxy_pass不带/，则真实地址会带location匹配目录/api/

<code class=" language-cpp">location <span class="token operator">/</span>api<span class="token operator">/</span><span class="token punctuation">{</span>proxy_pass http<span class="token operator">:</span><span class="token operator">/</span><span class="token operator">/</span><span class="token number">127.0</span><span class="token number">.0</span><span class="token number">.1</span><span class="token operator">:</span><span class="token number">8080</span><span class="token punctuation">;</span><span class="token punctuation">}</span>
</code>

访问地址： www.test.com/api/upload-->http://127.0.0.1:8080/api/upload

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