前后端分离，spring boot跨域问题

server{
listen 8099;
server_name wdm.test.cn;
location / {
　　// 没有配置OPTIONS的话，浏览器如果是自动识别协议(http or https)，那么浏览器的自动OPTIONS请求会返回不能跨域
　　if ($request_method = OPTIONS ) {
　　　　add_header Access-Control-Allow-Origin "$http_origin";
　　　　add_header Access-Control-Allow-Methods "POST, GET, PUT, OPTIONS, DELETE";
　　　　add_header Access-Control-Max-Age "3600";
　　　　add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization";
　　　　add_header Access-Control-Allow-Credentials "true";
　　　　add_header Content-Length 0;
　　　　add_header Content-Type text/plain;
　　　　return 200;
　　}
　　add_header 'Access-Control-Allow-Origin' '$http_origin';
　　add_header 'Access-Control-Allow-Credentials' 'true';
　　add_header 'Access-Control-Allow-Methods' 'GET, PUT, POST, DELETE, OPTIONS';
　　add_header 'Access-Control-Allow-Headers' 'Content-Type,*';
　　proxy_pass http://127.0.0.1:8080;
　　}
}

@Configuration
public class Cors extends WebMvcConfigurerAdapter {
@Override
 public void addCorsMappings(CorsRegistry registry) {
	 registry.addMapping("/**")
		 .allowedOrigins("*")
		 .allowedMethods("GET", "POST", "PUT", "OPTIONS", "DELETE", "PATCH")
		 .allowCredentials(true).maxAge(3600);
	}

}

@CrossOrigin(origins = "http://192.168.1.97:8080", maxAge = 3600)
@RequestMapping("rest_index")
@RestController
public class IndexController{}