我在本地跑了一个 Tomcat ，我想在 Android 模拟器中直接通过下面的 url 地址访问 Tomcat 上的服务http://192.168.0.20:8080/getweather但是报错信息说 host is unresolved我在模拟器上的浏览器上打开相同的地址，提示 page not found请问我如何才能在模拟器上访问本机的web服务呢？

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