选择有线网或者Wifi 进行网络请求

package com.lwz.selectnetworkdemo; import androidx.appcompat.app.AppCompatActivity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.net.ConnectivityManager; import android.net.Network; import android.net.NetworkCapabilities; import android.net.NetworkRequest; import android.net.wifi.WifiManager; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.CompoundButton; import android.widget.EditText; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.util.stream.Collectors; public class MainActivity extends AppCompatActivity { private final String NETWORK_STATE_CHANGE = "android.net.conn.CONNECTIVITY_CHANGE"; RadioGroup radioGroup; RadioButton rb_default; RadioButton rb_wifi; RadioButton rb_ethernet; EditText et_url; TextView tv_info; TextView tv_ip_show; TextView tv_ip_wifi; TextView tv_ip_eth0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LogUtil.inform(""); setContentView(R.layout.activity_main); initView(); initData(); initEvent(); } private void initView() { radioGroup = findViewById(R.id.radioGroup); rb_default = findViewById(R.id.rb_default); rb_wifi = findViewById(R.id.rb_wifi); rb_ethernet = findViewById(R.id.rb_ethernet); et_url = findViewById(R.id.et_url); tv_info = findViewById(R.id.tv_info); tv_ip_show = findViewById(R.id.tv_ip_show); tv_ip_wifi = findViewById(R.id.tv_ip_wifi); tv_ip_eth0 = findViewById(R.id.tv_ip_eth0); } private void initData() { initReceiver(); et_url.setText("https://www.baidu.com"); refreshIp(); } private void initEvent() { } //点击连接网络 public void connectNetwork(View view) { tv_info.setText(""); int selectNetType = 0; if (rb_ethernet.isChecked()) { selectNetType = 1; } else if (rb_wifi.isChecked()) { selectNetType = 2; } int finalSelectNetType = selectNetType; new Thread(new Runnable() { @Override public void run() { String url = et_url.getText().toString(); testNetwork(finalSelectNetType, url); } }).start(); } private void testNetwork(int netType, String url) { LogUtil.debug("testNetwork netType= " + netType); ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkRequest.Builder builder = new NetworkRequest.Builder(); // 设置指定的网络传输类型 // wifi: NetworkCapabilities.TRANSPORT_WIFI // 有线网络： NetworkCapabilities.TRANSPORT_ETHERNET if (netType == 1) { builder.addTransportType(NetworkCapabilities.TRANSPORT_ETHERNET); } else if (netType == 2) { // 设置感兴趣的网络功能 builder.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); } NetworkRequest request = builder.build(); ConnectivityManager.NetworkCallback callback = new ConnectivityManager.NetworkCallback() { @Override public void onAvailable(Network network) { super.onAvailable(network); LogUtil.debug("已根据功能和传输类型找到合适的有线网络"); LogUtil.debug("testnet onAvailable network = " + network.toString() ); runOnUiThread(new Runnable() { @Override public void run() { tv_info.setText("请求网络的network id = " + network.toString()); } }); // 通过network.openConnection 来获取URLConnection try { HttpURLConnection urlConnection = (HttpURLConnection) network.openConnection(new URL(url)); if (urlConnection != null) { int responseCode = urlConnection.getResponseCode(); String responseMessage = urlConnection.getResponseMessage(); LogUtil.debug("testEthernetonAvailable responseCode = " + responseCode); LogUtil.debug("testEthernet onAvailable responseMessage = " + responseMessage); InputStream inputStream = urlConnection.getInputStream(); String result = new BufferedReader(new InputStreamReader(inputStream)) .lines().parallel().collect(Collectors.joining("\n")); LogUtil.debug("testEthernet onAvailable result = " + result); runOnUiThread(new Runnable() { @Override public void run() { tv_info.append(" ,Time :" + TimeUtils.getTimeString() + " result : \n " + result); } }); } } catch (IOException e) { LogUtil.error("testEthernet onAvailable error = " + e.getMessage()); } connectivityManager.unregisterNetworkCallback(this); } }; connectivityManager.registerNetworkCallback(request, callback); // connectivityManager.requestNetwork(request, callback); } public void initReceiver() { LogUtil.debug(""); final IntentFilter filter = new IntentFilter(); filter.addAction(NETWORK_STATE_CHANGE); filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); filter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION); registerReceiver(mReceiver, filter); } private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { final String action = intent.getAction(); // LogUtil.debug("network action = " + action); if (action.equals(NETWORK_STATE_CHANGE) || action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) { LogUtil.debug("network state change"); String ipEthernetString = FunctionUtil.getIpAddress(MainActivity.this, false); LogUtil.debug("ipEthernetString = " + ipEthernetString); String ipWifiString = FunctionUtil.getIpAddress(MainActivity.this, true); LogUtil.debug("ipWifiString = " + ipWifiString); } } }; @Override protected void onDestroy() { super.onDestroy(); unregisterReceiver(mReceiver); } //点击刷新显示ip public void showIp(View view) { refreshIp(); } private void refreshIp() { LogUtil.debug("showIp"); String ipEthernetString = FunctionUtil.getIpAddress(MainActivity.this, false); LogUtil.debug("ipEthernetString = " + ipEthernetString); tv_ip_eth0.setText("有线网 IP:" + ipEthernetString); String ipWifiString = FunctionUtil.getIpAddress(MainActivity.this, true); tv_ip_wifi.setText("Wifi IP : " + ipWifiString); LogUtil.debug("ipWifiString = " + ipWifiString); } }