异常 java.net.UnknownServiceException: CLEARTEXT communication to *** not permitted by net

这是请求不允许明文

第一步：创建xml

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

第二步：AndroidManifest文件里application下添加xml

    android:networkSecurityConfig="@xml/network_security_config"