Jsoup

1. Gardle

implementation 'org.jsoup:jsoup:1.11.3'

공식사이트: https://jsoup.org/

2. Manifest

<uses-permission android:name="android.permission.INTERNET"/>

3. Activity

class MainActivity : AppCompatActivity() {

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

//        testJsoup()
        selectTest()

    }

    fun selectTest(){

        object : Thread() {
            override fun run() {
                val response = Jsoup.connect("http://www.google.com")
                        .method(Connection.Method.GET)
                        .execute()
                val googleDocument = response.parse()

                val btnK = googleDocument.select("input[name=btnK]").first()
                val btnKValue = btnK.attr("value")

                Log.d("SSS", btnKValue)
            }
        }.start()

    }


    fun testJsoup(){

        object : Thread() {
            override fun run() {
                // 간략화된 GET, POST
                val google1 = Jsoup.connect("http://www.google.com").get()
//                val google2 = Jsoup.connect("http://www.google.com").post()

                // Response로부터 Document 얻어오기
                val response = Jsoup.connect("http://www.google.com")
                        .method(Connection.Method.GET)
                        .execute()
                val document = response.parse()

                val html = document.html()
                val text = document.text()


                //ui를 위한 Thread
                runOnUiThread {
                    tv1.setText("html: " +  html)
                    tv2.setText("text: " + text)
                }


            }
        }.start()

    }
}