云計(jì)算服務(wù)
服務(wù)器租用
DDOS 防護(hù)
虛擬主機(jī)
域名服務(wù)
基礎(chǔ)設(shè)施
關(guān)于我們
在Android客戶端訪問服務(wù)器，通常使用HTTP協(xié)議進(jìn)行通信，以下是詳細(xì)的步驟和小標(biāo)題：
1、添加網(wǎng)絡(luò)權(quán)限
在AndroidManifest.xml文件中添加網(wǎng)絡(luò)權(quán)限：
<usespermission android:name="android.permission.INTERNET" />
2、創(chuàng)建網(wǎng)絡(luò)請(qǐng)求類
創(chuàng)建一個(gè)名為NetworkRequest的類，用于封裝網(wǎng)絡(luò)請(qǐng)求的方法：
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class NetworkRequest {
private static final String REQUEST_METHOD = "GET";
private static final int READ_TIMEOUT = 15000;
private static final int CONNECTION_TIMEOUT = 15000;
public String sendGetRequest(String requestUrl) {
StringBuilder result = new StringBuilder();
try {
URL url = new URL(requestUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setReadTimeout(READ_TIMEOUT);
connection.setConnectTimeout(CONNECTION_TIMEOUT);
connection.setRequestMethod(REQUEST_METHOD);
connection.connect();
if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
return result.toString();
}
}
3、發(fā)送網(wǎng)絡(luò)請(qǐng)求并處理響應(yīng)結(jié)果
在需要發(fā)送網(wǎng)絡(luò)請(qǐng)求的地方，調(diào)用NetworkRequest類的sendGetRequest方法，并處理響應(yīng)結(jié)果：
public class MainActivity extends AppCompatActivity {
private NetworkRequest networkRequest;
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = findViewById(R.id.textView);
networkRequest = new NetworkRequest();
getDataFromServer("https://api.example.com/data");
}
private void getDataFromServer(String requestUrl) {
networkRequest.sendGetRequest(requestUrl) { response >
runOnUiThread(() > {
textView.setText(response);
});
};
}
}
4、單元表格：Android客戶端訪問服務(wù)器的主要步驟和代碼示例：
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