React Native fetch（）网络请求失败 [英] React Native fetch() Network Request Failed

问题描述

当我使用 react-native init （RN版本0.29.1）创建一个全新的项目时，将render方法中的fetch放入公共facebook演示影片API ，它会抛出网络请求失败。有一个非常无用的堆栈跟踪，我无法在chrome控制台中调试网络请求。这是我发送的fetch：

When I create a brand new project using react-native init (RN version 0.29.1) and put a fetch in the render method to the public facebook demo movie API, it throws a Network Request Failed. There is a very useless stack trace and I can't debug network requests in the chrome console. Here is the fetch I'm sending:

fetch('http://facebook.github.io/react-native/movies.json')
      .then((response) => response.json())
      .then((responseJson) => {
        return responseJson.movies;
      })
      .catch((error) => {
        console.error(error);
      });

推荐答案

这里的问题是iOS不允许HTTP请求默认情况下，只有HTTPS。如果要启用HTTP请求，请将此添加到 info.plist ：

The problem here is that iOS does not allow HTTP requests by default, only HTTPS. If you want to enable HTTP requests add this to your info.plist:

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>

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