<?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>

thread {
    var connection: HttpURLConnection? = null
    try {
        val response = StringBuilder()
        val url = URL("https://www.baidu.com")
        connection = url.openConnection() as HttpURLConnection
        connection.connectTimeout = 8000
        connection.readTimeout = 8000
        //GET請求
        val input = connection.inputStream
        val reader = BufferedReader(InputStreamReader(input))
        reader.useLines { response.append(it) }
        print(response.toString())
        //POST請求
        connection.requestMethod = "POST"
        val output = DataOutputStream(connection.outputStream)
        output.writeBytes("username=admin&password=123456")
    } catch (e: Exception) {
        e.printStackTrace()
    } finally {
        connection?.disconnect()
    }
}

interface PersonService {
    //接口1：https://www.baidu.com/person.json
    @GET("person.json")    //表示發(fā)起的是GET請求，傳入請求的地址（相對路徑，重復(fù)根路徑在后面配置）
    fun getPerson(): Call<list<Person>>    //返回值必須聲明成Retrofit內(nèi)置的Call類型，通過泛型指定服務(wù)器返回的具體數(shù)據(jù)類型
    //接口2：https://www.baidu.com/<page>/person.json
    @GET("{page}/get_data.json")    //使用 {page} 占位
    fun getData(@Path("page") page: Int): Call<Data>    //使用 @Path("page")注解來聲明對應(yīng)參數(shù)
    //接口3：https://www.baidu.com/person.json?u=<user>&t=<token>
    @GET("person.json")
    fun getData(@Query("u") user: String, @Query("t") token: String): Call<Data>
    //接口4：https://api.caiyunapp.com/v2/place?query=北京&token={token}&lang=zh_CN
    @GET("v2/place?token=${GlobalApplication.TOKEN}&lang=zh_CN")    //不變的參數(shù)固定寫在GET里
    fun searchPlaces(@Query("query") query: String): Call<PlaceResponse>
    //接口5：https://www.baidu.com/data/<id>
    @DELETE("data/{id}")
    fun deleteData(@Path("id") id: String): Call<ResponseBody>    //該泛型表示能接受任意類型切不會進(jìn)行解析
    //接口6：https://www.baidu.com/data/create{"id": 1, "content": "The description for this data."}
    @POST("data/create")
    fun createData(@Body data: Data): Call<ResponseBody>    //將Data對象中的數(shù)據(jù)轉(zhuǎn)換成JSON格式的文本，并放到HTTP請求的body部分
    //接口7：http://example.com/get_data.json
    //      User-Agent: okhttp    //header參數(shù)就是鍵值對
    //      Cache-Control: max-age=0
    //靜態(tài)聲明
    @Headers("User-Agent: okhttp", "Cache-Control: max-age=0")
    @GET("get_data.json")
    fun getData(): Call<Data>
    //動態(tài)聲明
    @GET("get_data.json")
    fun getData(@Header("User-Agent") userAgent: String, @Header("Cache-Control") cacheControl: String): Call<Data>
}

val retrofit = Retrofit.Builder()
    .baseUrl("https://www.baidu.com/")    //配置重復(fù)的根路徑
    .addConverterFactory(GsonConverterFactory.create())    //指定解析數(shù)據(jù)使用的轉(zhuǎn)換庫（這里是Gson）
    .build()

//創(chuàng)建動態(tài)代理對象
val personService = retrofit.create(PersonService::class.java)
//調(diào)用訪問函數(shù)
personService.getPerson().enqueue(object : Call<List<person>> {    //根據(jù)注解中配置的地址進(jìn)行網(wǎng)絡(luò)請求
    override fun onResponse(call: Call<List<person>>, response: Response<List<person>>) {
        val list = response.body()    //得到解析后的對象
    }
    override fun onFailure(call: Call<List<person>>, t: Trouble) {
        t.printStackTrace()
    }
})

object GlobalRetrofit {
    private const val BASE_URL = "www.baidu.com/"
    val retrofit: Retrofit = Retrofit.Builder()
        .baseUrl(BASE_URL)
        .addConverterFactory(GsonConverterFactory.create())
        .build()
    //fun <T> create(serviceClass: Class<T>): T = retrofit.create(serviceClass)
    inline fun <reified T> create(): T = create(T::class.java)
}
//使用
val personService = GlobalRetrofit.create<PersonService>()