前端调用接口地址跨越问题，nginx配置处理

在nginx配置里面添加add_header如下：

add_header 'Access-Control-Allow-Origin' '*';

#add_header 'Access-Control-Allow-Origin' 'http://localhost:8080' always;

add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;

add_header 'Access-Control-Allow-Headers' 'X-Requested-With, Content-Type, Authorization' always;