react-native – 如何在React Native IOS应用程序中发出HTTP请求

发布时间：2020-12-15 05:05:11 所属栏目：百科来源：网络整理

导读：fetch('http://119.9.52.47:3000/api/countries',{ method: 'POST',headers: { 'Accept': 'application/json','Content-Type': 'application/json'},}).then((response) = response.json()) .then((responseData) = { console.log(responseData); }) 这是我

fetch('http://119.9.52.47:3000/api/countries',{
       method: 'POST',headers: { 'Accept': 'application/json','Content-Type': 'application/json'},}).then((response) => response.json())
     .then((responseData) => {
           console.log(responseData);
       })

这是我的代码.但那不行.

您可以尝试将此数据发送到服务器(POST)

let response = await fetch(
    'http://your_url',{
      method: 'POST',headers: {
        'Accept': 'application/json','Content-Type': 'application/json',},body: JSON.stringify({
        username: this.state.name,//data which u want to send
        password: this.state.password,})
  });
  let responseText = await response.text();
  if (response.status >= 200 && response.status < 300){
    Alert.alert('Server response',responseText)

  }
  else {
    let error = responseText;
    throw error
    //Alert.alert('Login',error)
  }
} catch(errors) {
  Alert.alert('Login',errors)

  Actions.Documents();
}

编辑：最新的iOS sdk强制连接为https协议而不是http.you可以在Xcode项目的info.plist文件中为您的域添加例外.

如果你想允许一切写在info.plist里面

<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
    <key>yourdomain.com</key>
    <dict>
        <!--Include to allow subdomains-->
        <key>NSIncludesSubdomains</key>
        <true/>
        <!--Include to allow HTTP requests-->
        <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
        <true/>
        <!--Include to specify minimum TLS version-->
        <key>NSTemporaryExceptionMinimumTLSVersion</key>
        <string>TLSv1.1</string>
    </dict>
 </dict>
</dict>

有关更多信息,请查看https://stackoverflow.com/a/31623388/7604342

（编辑：李大同）

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