nginx angular 跨域

1-nginx.conf

server{
listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
        root /Users/pengzhihao/angular/my-app/dist/my-app;
        index index.html;

        location / {
            try_files $uri $uri/ /index.html;
        }
        location /weather/ {
                proxy_pass http://v.juhe.cn/weather/;
        }
        location /toutiao/ {
                proxy_pass http://v.juhe.cn/toutiao/;
        }
}

2-angular中请求方法
post请求

getNews(type: string): Observable {
    return this.http.post(
      'toutiao/index',
      null,
      {
        params: {'type': type, 'key': 'xxx'},
        responseType: 'json'
      }
    );
  }

get请求

   getWeather(cityname: string): Observable {
      return this.http.get(
      'weather/index',
      {
        params: {'cityname': cityname, 'key': 'xxx'},
        responseType: 'text'
       });
  }