【Android】Http访问网络模板(兼okHttp)

布满荆棘的人生 2022-11-19 05:25 206阅读 0赞

### Http访问网络模板-兼okHttp ###

> **代码:**

*  **Manifest:**

*  **Kotlin:**

`activity:`

class HttpURLActivity : AppCompatActivity() {
    
        private lateinit var httpUrlBinding: ActivityHttpurlBinding
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            httpUrlBinding = ActivityHttpurlBinding.inflate(layoutInflater)
            setContentView(httpUrlBinding.root)
    
            httpUrlBinding.httpUrlSendRequest.setOnClickListener {
                sendRequestWithHttpURLConnection()
            }
        }
    
        private fun sendRequestWithHttpURLConnection() {
            //开启线程发起的网络请求
            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
                    val input = connection.inputStream
                    //下面对获取的输入流进行读取
                    val reader = BufferedReader(InputStreamReader(input))
                    reader.use {
                        reader.forEachLine {
                            response.append(it)
                        }
                    }
                    showResponse(response.toString())*/
                        //okhttp
                    val client = OkHttpClient()
                    val request = Request.Builder()
                        .url("https://www.baidu.com")
                        .build()
                    val response = client.newCall(request).execute()
                    val responseData = response.body?.string()
                    if (responseData != null) showResponse(responseData)
                } catch (e: Exception) {
                    e.printStackTrace()
                } finally {
                    connection?.disconnect()
                }
            }
        }
    
        private fun showResponse(response: String) {
            runOnUiThread {
                //在这里进行UI操作,将结果显示到界面上
                httpUrlBinding.httpUrlResponseText.text = response
            }
        }
    }

*  **Layout:**

`activity_httpurl:`

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
    
        <Button
            android:id="@+id/httpUrl_sendRequest"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Send Request" />
    
        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent">
    
            <TextView
                android:id="@+id/httpUrl_responseText"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
        </ScrollView>
    </LinearLayout>

*  **gradle:**

`app:`

implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.2'