我尝试使用工具http://amritb.github.io/socketio-client-tool/v1/连接到我知道已启动并正在运行的套接字
我正在使用 Android Studio 构建一个 android 应用程序。我在清单文件中添加了 INTERNET 权限,并将 Socket.IO-client 放入 gradle
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="poly.project3.test">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.Test">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
和
dependencies {
implementation ('io.socket:socket.io-client:2.0.0') {
exclude group: 'org.json', module: 'json'
}
implementation 'androidx.appcompat:appcompat:1.4.1'
implementation 'com.google.android.material:material:1.5.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}
这是我尝试运行的简单代码:
package poly.project3.test;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import java.net.URISyntaxException;
import io.socket.client.IO;
import io.socket.client.Socket;
public class MainActivity extends AppCompatActivity {
private Socket mSocket;
{
try {
mSocket = IO.socket("http://public Ip addresse that works:3000");
} catch (URISyntaxException e) {}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSocket.connect();
System.out.println(mSocket.connected());
}
}
我没有收到任何错误,但 mSocket.connected() 返回 False。另外在服务器日志中没有新的套接字连接