1. 将css 和 js 中的 urltest.com 全局搜索替换成 后端的地址
2. 在后端增加转发，如下nginx配置

```nginx
    # 内网地图转发-start
    location /api_map_baidu_com/ {
                #180.101.212.184
            proxy_pass   https://api.map.baidu.com/;
            proxy_set_header  Host  api.map.baidu.com;
    }
    location /webmap0_bdimg_com/ {
                #182.84.110.35
            proxy_pass   https://webmap0.bdimg.com/;
            proxy_set_header  Host  webmap0.bdimg.com;
    }
    location /maponline0_bdimg_com/ {
                #182.84.110.35
            proxy_pass   https://maponline0.bdimg.com/;
            proxy_set_header  Host  maponline0.bdimg.com;
    }
    location /maponline1_bdimg_com/ {
        # 182.84.110.35
            proxy_pass   https://maponline1.bdimg.com/;
            proxy_set_header  Host  maponline1.bdimg.com;
    }
    location /maponline2_bdimg_com/ {
        # 182.84.110.35
            proxy_pass   https://maponline2.bdimg.com/;
            proxy_set_header  Host  maponline2.bdimg.com;
    }
    location /maponline3_bdimg_com/ {
        # 182.84.110.35
            proxy_pass   https://maponline3.bdimg.com/;
            proxy_set_header  Host  maponline3.bdimg.com;
    }
    location /pcor_baidu_com/ {
        # 180.101.212.102
            proxy_pass   https://pcor.baidu.com/;
            proxy_set_header  Host  pcor.baidu.com;
    }
    location /dlswbr_baidu_com/ {
        # 182.107.80.35
            proxy_pass   https://dlswbr.baidu.com/;
            proxy_set_header  Host  dlswbr.baidu.com;
    }
    # 内网地图转发-end
```