Android9.0 http网络请求

第一步:在res目录下新建一个xml文件夹,然后再xml目录下新建一个network_security_config文件

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true">
        <trust-anchors>
            <certificates src="system" overridePins="true" />
            <certificates src="user" overridePins="true" />
        </trust-anchors>
    </base-config>
</network-security-config>

第二步:然后在 AndroidManifest.xml application 标签内应用上面的xml配置

        android:name=".App"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:requestLegacyExternalStorage="true"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:networkSecurityConfig="@xml/network_security_config"
        android:supportsRtl="true"