blocks|key|2596888|text|您可以在Android+Emulator中更改主机文件(也适用于根设备)。下面是你如何做到这一点的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2596889|如果模拟器已连接，则打开控制台或终端(windows/linux)|2596890|Check：adb+devices|unordered-list-item|offset|length|style|CODE|2596891|
|2596892|Call+|2596893|：|ordered-list-item|2596894|2596895|2596896|Linux：adb+pull+/system/etc/hosts+/home/"yourusername"/|2596897|Windows：adb+pull+/system/etc/hosts+C:/hosts|2596898|Open+hosts文件并添加以下行|2596899|2596900|对此文件执行yourdomainputhere++++++benjin.local|2596901|Save操作并推送到emulator|2596902|2596903|adb+remount|2596904|2596905|adb+push+/home/yourusername/hosts+/system/etc|2596906|2596907|现在，您可以访问此url，如benjin.local|2596908|entityMap^0|0|0|6|B|0|0|0|0|0|0|6|1C|0|8|Z|0|5|5|0|0|6|Z|0|0|0|0|B|0|0|0|19|0|0|0^^$0|@$1|2|3|4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1G|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1H|8|@$G|1I|H|1J|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|1K|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|1L|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1M|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1P|8|@$G|1Q|H|1R|I|J]]|9|@]|A|$]]|$1|V|3|W|5|6|7|1S|8|@$G|1T|H|1U|I|J]]|9|@]|A|$]]|$1|X|3|Y|5|F|7|1V|8|@$G|1W|H|1X|I|J]]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|1Z|8|@$G|20|H|21|I|J]]|9|@]|A|$]]|$1|12|3|13|5|F|7|22|8|@]|9|@]|A|$]]|$1|14|3|L|5|6|7|23|8|@]|9|@]|A|$]]|$1|15|3|16|5|F|7|24|8|@$G|25|H|26|I|J]]|9|@]|A|$]]|$1|17|3|L|5|6|7|27|8|@]|9|@]|A|$]]|$1|18|3|19|5|F|7|28|8|@$G|29|H|2A|I|J]]|9|@]|A|$]]|$1|1A|3|-4|5|6|7|2B|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|2C|8|@]|9|@]|A|$]]|$1|1D|3|-4|5|6|7|2D|8|@]|9|@]|A|$]]]|1E|$]]

You can change host file in Android Emulator (for rooted devices also). Here is how you do this. 

<ol>
<li>Open console or terminal (windows/linux)</li>
<li>Check if emulator is connected: <code>adb devices</code></li>
<li>Call this:

Linux: <code>adb pull /system/etc/hosts /home/"yourusername"/</code>

Windows: <code>adb pull /system/etc/hosts C:/hosts</code></li>
<li>Open <code>hosts</code> file and add line below

<code>yourdomainputhere benjin.local</code></li>
<li>Save this file and push to the emulator</li>
<li><code>adb remount</code></li>
<li><code>adb push /home/yourusername/hosts /system/etc</code></li>
</ol>

Now you can access this url, like benjin.local

blocks|key|2596914|text|Android模拟器使用10.0.2.2代替127.0.0.1。因为您的开发计算机上的127.0.0.1对应于仿真器自己的回送接口。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2596915|http://developer.android.com/tools/devices/emulator.html#networkaddresses|offset|length|2596916|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|21|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

Android emulator uses 10.0.2.2 in the place of 127.0.0.1. Because 127.0.0.1 on your development machine corresponds to the emulator's own loopback interface.

<a href="http://developer.android.com/tools/devices/emulator.html#networkaddresses" rel="nofollow">http://developer.android.com/tools/devices/emulator.html#networkaddresses</a>

blocks|key|3948508|text|该问题是由主机名绑定的IIS+Express造成的，并且Visual+Studio将主机名设置为"localhost“。因此，"127.0.0.1“会给出一个”错误400.错误请求(无效主机名)“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3948509|解决这个问题需要几个步骤。|3948510|修改applicationhost.config的|3948511|ordered-list-item|3948512|3948513|这是IIS+Express的配置文件，应该位于ASP.NET项目的根目录中。如果这个文件不容易找到，右键单击任务栏中的IIS+express，单击“显示所有应用程序”，注册的站点应该会出现在列表中。单击您尝试访问的站点。底部应列出两个文件路径："Path“和"Config”。配置是applicationhost.config文件的位置。|3948514|绑定信息的格式如下：|3948515|+<binding+protocol="http"+bindingInformation="*:17687:localhost"+/>|code-block|syntax|javascript|3948516|bindingInformation中的冒号分隔值表示要侦听的IP地址、端口和主机名。您可以删除主机名，以避免IIS+Express在请求标头字段中预期为"localhost“：|3948517|+<binding+protocol="http"+bindingInformation="*:17687:"+/>|3948518|3948519|退出IIS+Express|3948520|3948521|需要重新启动IIS+Express才能使此配置更改生效。它可以通过右键单击任务栏中的IIS并选择“退出”来关闭，也可以通过选择特定的站点来关闭(大多数时候只有1个，除非有多个web类型的项目-+ASP.NET、WCT等)。然后单击“停止”，然后单击“开始”。但完全退出会更好，因为可能需要进行额外的配置，而且PC可能无论如何都需要重新启动。|3948522|3948523|Firewall|3948524|3948525|测试站点使用的端口应该包含在防火墙中。在上面的例子中，端口地址是17687。打开防火墙设置并添加入站规则以允许此TCP端口。此时，可能需要重新启动。至少，应停止并重新启动项目以重新启动IIS+Express。|3948526|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|19|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1A|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1B|8|@]|9|@]|A|$]]|$1|F|3|-4|5|G|7|1C|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|1E|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1F|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1G|8|@]|9|@]|A|$P|Q]]|$1|R|3|S|5|6|7|1H|8|@]|9|@]|A|$]]|$1|T|3|U|5|O|7|1I|8|@]|9|@]|A|$P|Q]]|$1|V|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|W|3|X|5|G|7|1K|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|1M|8|@]|9|@]|A|$]]|$1|11|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]|$1|12|3|13|5|G|7|1O|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|17|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]]|18|$]]

The issue is caused by IIS Express binding by hostname, and the host name is set by Visual Studio as "localhost". Therefore "127.0.0.1" gives a "Error 400. bad reqest (invalid hostname)". 

Solving this requires a few steps. 

<ol>
<li>Modify the applicationhost.config</li>
</ol>

This is the configuration file for IIS Express, and should be located in the root of your ASP.NET project. If this file can not easily be found, right click on the IIS express in the task bar, click on "Show All Applications", and the registered sites should be in a list. Click on the site you are trying to access. Two File paths should be listed at the bottom, "Path" and "Config". The config is the location to your applicationhost.config file. 

The binding information would have the following format:

<pre><code> &lt;binding protocol="http" bindingInformation="*:17687:localhost" /&gt;
</code></pre>

The colon separated values in the bindingInformation represent the IP address to listen to, the port, and the host name. You can remove the hostname to avoid IIS Express expecting "localhost" in the request header field:

<pre><code> &lt;binding protocol="http" bindingInformation="*:17687:" /&gt;
</code></pre>

<ol start="2">
<li>Exit out of IIS Express</li>
</ol>

IIS Express needs to be restarted in order for this config change to take place. It can either be closed via right click on IIS in the task bar, and choose "Exit" or by choosing the specific site (most times there will only be 1, unless there are multiple web type projects - ASP.NET,WCT, etc.) and clicking "Stop" and then "Start". But Exiting out of it totally would be better as additional configuration might have to be done, and the PC might need a reboot anyway. 

<ol start="3">
<li>Firewall</li>
</ol>

The port that the test site uses should be included in the firewall. In the case above, the port address would be 17687. Open the firewall settings and add a inbound rule to allow this TCP port. At that point, there might need to be a reboot. At the minimum, the project should be stopped and restarted to cause a restart of the IIS Express.

blocks|key|168152|text|我现在还不能访问bog标准的ASP.NET服务，但是在Web+API上，您可以简单地右键单击项目，选择属性，然后转到属性页的Web选项卡。在那里，我可以将Project+Url字段更改为使用127.0.0.1而不是localhost。这样做之后，模拟器应该可以很好地连接，而您的浏览器可以连接到localhost或127.0.0.1。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|168153|entityMap^0|2N|9|2Z|9|43|9|4D|9|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

I don't have access to a bog standard ASP.NET service right now, but on Web API, you can simply right-click the project, choose Properties and go to the Web tab of the property page. There I am able to change the Project Url field to use <code>127.0.0.1</code> instead of <code>localhost</code>. Having done that, the emulator should connect just fine, while your browser can connect to either <code>localhost</code> or <code>127.0.0.1</code>.

I'm running an ASP.net service running through Visual Studio. It's accessible via browser at (example API call) <code>http://localhost:9000/api/Maps/1</code>. When I visit <code>http://127.0.0.1:9000/api/Maps/1</code> via browser, I get a 400 error (Bad Request - Invalid Hostname).

The Android emulator can successfully make calls to external sites (e.g. <code>http://httpbin.org/ip</code>). When I direct the app to pull JSON from <code>http://10.0.2.2:9000/api/Maps/1</code> (10.0.2.2 being what the web tells me directs the emulator to the host computer's localhost, the result is the HTML for (what I assume is) the same 400 error from 127.0.0.1 above.

It seems when I run the web service from Visual Studio (2013, if that makes a difference), it's exposed properly on localhost, but not 127.0.0.1, and is therefore not accessible for testing. Can anyone help me to resolve this? Thanks!

Trying to access a locally-hosted ASP.net service from the Android emulator - not exposed on 127.0.0.1?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在运行一个通过Visual Studio运行的ASP.net服务。它可以通过浏览器访问(示例应用程序接口调用) http://localhost:9000/api/Maps/1。当我通过浏览器访问http://127.0.0.1:9000/api/Maps/1时，我得到了一个400错误(错误的请求-无效的主机名)。...

问试图从安卓模拟器访问本地托管的ASP.net服务-在127.0.0.1上没有公开？
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问试图从安卓模拟器访问本地托管的ASP.net服务-在127.0.0.1上没有公开？EN