【错误记录】Android 应用 POST 网络请求报错 ( java.io.IOException: Cleartext HTTP traffic to xxx not permitted )

一、报错信息

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报错信息如下 : 执行 post 请求信息 , 报如下错误 :

W/System.err: java.io.IOException: Cleartext HTTP traffic to xxx not permitted
W/System.err:     at com.android.okhttp.HttpHandler$CleartextURLFilter.checkURLPermitted(HttpHandler.java:115)
W/System.err:     at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:458)
W/System.err:     at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:127)
W/System.err:     at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:258)
W/System.err:     at com.android.tools.profiler.support.network.httpurl.TrackedHttpURLConnection.getOutputStream(TrackedHttpURLConnection.java:314)
W/System.err:     at com.android.tools.profiler.support.network.httpurl.HttpURLConnection$.getOutputStream(HttpURLConnection$.java:212)
W/System.err:     at cn.zkhw.client.utils.HttpUtils.doPost(HttpUtils.java:211)
W/System.err:     at cn.zkhw.client.utils.HttpUtils$2.run(HttpUtils.java:86)

二、解决方案

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在 AndroidManifest.xml 清单文件中 , 在 application 节点设置 android:usesCleartextTraffic=“true” 属性即可 ;

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example">

    <application
        android:usesCleartextTraffic="true">
    </application>
</manifest>