nginx部署vue项目,给访问路径加前缀的实现

const router = new VueRouter({
  routes: routes.concat(asyncRouterMap),
  base: window.publicPath ? window.publicPath + "/" : "",
  mode:
    process.env.node_ENV === "production" || process.env.NODE_ENV === "test"
      ? "history"
      : "hash",
});

	server {
         #前端启动端口监听
        listen       8780;
        #本机ip，也可以是域名
        server_name  192.168.2.87;
		location / {  
            root   html;
            index  index.html index.htm;
        }
		location /cancer {
			alias  html/cancer;
           index  index.html index.htm;
           try_files  $uri  $uri/   /cancer/index.html;
        }