nginx跨域设置 nginx apache nginx php nginx rewrite

• 在做一个项目的时候，采用了前后端分离的结构设计，后台设计的rest风格的http接口既需要满足后台服务调用，也需要满足前端直接采用ajax调用，于是碰到了跨域问题， 后台采用的是spring mvc结构， HTTP方法支持get、post、put、delete、option等方法，由于在post调用的时候，前端http会先采用option到服务器端，204了之后再提交请求数据，除了在nginx层面做调整之外，spring web.xml也需要设置下， 这种方案不需要在服务端增加filter之类的东西，得到的可行的版本如下:

• spring web.xml

<servlet>
<servlet-name>root</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-web.xml</param-value>
</init-param><init-param><param-name>dispatchOptionsRequest</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet><servlet-mapping>
<servlet-name>root</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

• nginx.conf 有些地方比较罗嗦

location ~/api/* {
            dav_methods PUT DELETE;
            if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '$http_origin';
                add_header 'Access-Control-Allow-Methods' 'GET, POST,PUT,DELETE, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,
                User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
                add_header 'Access-Control-Max-Age' 3600;
                add_header 'Content-Type' 'text/plain charset=UTF-8';
                add_header 'Content-Length' 0;
                return 204;
            }
            if ($request_method = 'POST') {
                add_header 'Access-Control-Allow-Origin' '$http_origin';
                add_header 'Access-Control-Allow-Methods' 'GET, POST,PUT,DELETE, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,
                User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
            }
            if ($request_method = 'GET') {
                add_header 'Access-Control-Allow-Origin' '$http_origin';
                add_header 'Access-Control-Allow-Methods' 'GET, POST,DELETE,PUT, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,
                User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
            }
      if ($request_method = 'PUT') {
                add_header 'Access-Control-Allow-Origin' '$http_origin';
                add_header 'Access-Control-Allow-Methods' 'GET, POST,PUT,DELETE, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,
                User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
            }
            if ($request_method = 'DELETE') {
                add_header 'Access-Control-Allow-Origin' '$http_origin';
                add_header 'Access-Control-Allow-Methods' 'GET, POST,DELETE,PUT, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,
                User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
            }
            root /opt/www/web/;
            index index.jsp;
            proxy_pass <a rel="nofollow" href="http://localhost.html" target="_blank">
            <a rel="nofollow" href="http://localhost" target="_blank">http://localhost</a></a>:8089;
            include /opt/conf/nginx/proxy.conf;
        }

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