来自带有自签名证书的 https 服务器的 Reactnative fetch()

免责声明:此解决方案应该是临时的，并且有文档记录，这样它就不会停留在软件的生产阶段，这只是为了开发.

对于iOS，你所要做的就是打开你的xcodeproject(在RN的iOS文件夹中)，一旦打开了，就转到RCTNetwork.在该项目中，导航到RCTHTTPRequestHandler.M

在该文件中，您将看到这样一行:

#pragma mark - NSURLSession delegate

就在那一行之后，添加这个函数

- (void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler
{
  completionHandler(NSURLSessionAuthChallengeUseCredential, [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]);
}

瞧，您现在可以在没有有效证书的情况下对API进行不安全的调用.

这应该足够了，但如果你仍然有问题，你可能需要go 你的项目的信息.plist，左键点击它并 Select open as...源代码.

最后再加上

<key>NSAppTransportSecurity</key>
  <dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
  </dict>
  <key>NSExceptionDomains</key>
    <dict>
        <key>localhost</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
        </dict>
        <key>subdomain.example.com</key>
        <dict>
            <key>NSIncludesSubdomains</key>
            <true/>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
        </dict>
    </dict>

所以你的文件看起来像这样

    ...
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UIViewControllerBasedStatusBarAppearance</key>
    <false/>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string></string>
  <key>NSAppTransportSecurity</key>
  <dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
  </dict>
  <key>NSExceptionDomains</key>
    <dict>
        <key>localhost</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
        </dict>
        <key>subdomain.example.com</key>
        <dict>
            <key>NSIncludesSubdomains</key>
            <true/>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
        </dict>
    </dict>
</dict>
</plist>

对于一个真正的生产就绪解决方案，https://stackoverflow.com/a/36368360/5943130该解决方案更好