创建tomcat服务端以及实现kotlin的https的请求

json所在的位置 （E:\apache-tomcat-9.0.22\webapps\ROOT）

tomcat配置参考地址
tomcat ssl配置 参考文档地址

文档展示

生成keystore （keytool -genkeypair -alias alipay -keyalg RSA -validity 3650 -keystore alipay.keystore）

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配置service.xml信息

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导出cer(keytool -exportcert -alias alipay -file alipay.cer -keystore alipay.keystore)

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测试代码结构

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具体实体类

class MainActivity : AppCompatActivity() {

    private val mButton : Button by lazy {
        btn
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        mButton.onClick {
            sendHttps()
        }
    }

    var sendHttps ={
        doAsync {

            //查看谷歌网址：https://developer.android.google.cn/training/articles/security-ssl?hl=zh_cn
            //创建ssl上下文对象设置信任管理器（相当于保安）
            val sslContext = SSLContext.getInstance("TLS")
            val tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
            //初始化工厂
            val ks = KeyStore.getInstance(KeyStore.getDefaultType())
            //清空默认证书，设置自己证书
            ks.load(null)

            val cf = CertificateFactory.getInstance("X.509")
            val open = assets.open("alipay.cer")
            val cer = cf.generateCertificate(open)
            ks.setCertificateEntry("alipay",cer)

            tmf.init(ks)
            val tm = tmf.trustManagers
            sslContext.init(null,tm,null)

            var url = URL("https://127.0.0.1:8443/list/alipay.json")
            var connection:HttpsURLConnection = url.openConnection() as HttpsURLConnection
            //使用信任管理器
            connection.sslSocketFactory = sslContext.socketFactory
            //主机名校验
            connection.hostnameVerifier = MyHostname()

            var ins = connection.inputStream
            var bos = ByteArrayOutputStream()
            var buffer = ByteArray(1024)
            var len = 0
            len = ins.read(buffer)
            while (len != -1){
                bos.write(buffer,0,len)
                len = ins.read(buffer)
            }
            val result = bos.toString()
            println("服务器返回数据 ： " + result)
        }
    }

    private class MyHostname : HostnameVerifier{
        //主机名校验
        override fun verify(hostname: String?, session: SSLSession?): Boolean {
            return true
        }

    }
}