java - NoClassDefFound 错误：Logcat 读取 $1 指示内部类错误，但我没有

Question

我在 android 中设置了一个 tcp 服务器，我能够让示例正常工作，但不能在我自己的应用程序中实现示例。我不断收到 NoClassDefFound 错误，并尝试删除内部类并创建单独的类，但它似乎不起作用。我已经包含了我的 LogCats 和 java 文件。

日志猫

08-07 14:34:03.642: W/dalvikvm(332): threadid=1: thread exiting with uncaught exception (group=0x40015560)
08-07 14:34:03.642: E/AndroidRuntime(332): FATAL EXCEPTION: main
08-07 14:34:03.642: E/AndroidRuntime(332): java.lang.NoClassDefFoundError: com.example.com.proto1.AndroidNetCommunicationClientActivityInner$1
08-07 14:34:03.642: E/AndroidRuntime(332):  at com.example.com.proto1.AndroidNetCommunicationClientActivityInner.<init>(AndroidNetCommunicationClientActivityInner.java:103)
08-07 14:34:03.642: E/AndroidRuntime(332):  at java.lang.Class.newInstanceImpl(Native Method)
08-07 14:34:03.642: E/AndroidRuntime(332):  at java.lang.Class.newInstance(Class.java:1409)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.os.Handler.dispatchMessage(Handler.java:99)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.os.Looper.loop(Looper.java:123)
08-07 14:34:03.642: E/AndroidRuntime(332):  at android.app.ActivityThread.main(ActivityThread.java:3683)
08-07 14:34:03.642: E/AndroidRuntime(332):  at java.lang.reflect.Method.invokeNative(Native Method)
08-07 14:34:03.642: E/AndroidRuntime(332):  at java.lang.reflect.Method.invoke(Method.java:507)
08-07 14:34:03.642: E/AndroidRuntime(332):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
08-07 14:34:03.642: E/AndroidRuntime(332):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-07 14:34:03.642: E/AndroidRuntime(332):  at dalvik.system.NativeStart.main(Native Method)

主 tcp java

import net.client.MyRequest;
import net.client.MyResponse;
import net.client.R;
import eneter.messaging.diagnostic.EneterTrace;
import eneter.messaging.endpoints.typedmessages.*;
import eneter.messaging.messagingsystems.messagingsystembase.*;
import eneter.messaging.messagingsystems.tcpmessagingsystem.TcpMessagingSystemFactory;
import eneter.net.system.EventHandler;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;

public class AndroidNetCommunicationClientActivityInner extends Activity {

    // UI controls
    private Handler myRefresh = new Handler();
    private EditText myMessageTextEditText;
    private EditText myResponseEditText;
    private Button mySendRequestBtn;

    // Sender sending MyRequest and as a response receiving MyResponse.
    private IDuplexTypedMessageSender<MyResponse, MyRequest> mySender;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // Get UI widgets.
        myMessageTextEditText = (EditText) findViewById(R.id.messageTextEditText);
        myResponseEditText = (EditText) findViewById(R.id.messageLengthEditText);
        mySendRequestBtn = (Button) findViewById(R.id.sendRequestBtn);

        // Subscribe to handle the button click.
        mySendRequestBtn.setOnClickListener(myOnSendRequestClickHandler);

        try {
            openConnection();
        } catch (Exception err) {
            EneterTrace.error("Open connection failed.", err);
        }
    }

    @Override
    public void onDestroy() {
        // Stop listening to response messages.
        mySender.detachDuplexOutputChannel();
    }

    private void openConnection() throws Exception {
        // Create sender sending MyRequest and as a response receiving
        // MyResponse
        IDuplexTypedMessagesFactory aSenderFactory = new DuplexTypedMessagesFactory();
        mySender = aSenderFactory.createDuplexTypedMessageSender(
                MyResponse.class, MyRequest.class);

        // Subscribe to receive response messages.
        mySender.responseReceived().subscribe(myOnResponseHandler);

        // Create TCP messaging for the communication.
        // Note: 10.0.2.2 is a special alias to the loopback (127.0.0.1)
        // on the development machine.
        IMessagingSystemFactory aMessaging = new TcpMessagingSystemFactory();
        IDuplexOutputChannel anOutputChannel = aMessaging
                .createDuplexOutputChannel("tcp://10.0.2.2:8060/");

        // Attach the output channel to the sender and be able to send
        // messages and receive responses.
        mySender.attachDuplexOutputChannel(anOutputChannel);
    }

    private void onSendRequest(View v) {
        // Create the request message.
        MyRequest aRequestMsg = new MyRequest();
        aRequestMsg.Text = myMessageTextEditText.getText().toString();

        // Send the request message.
        try {
            mySender.sendRequestMessage(aRequestMsg);
        } catch (Exception err) {
            EneterTrace.error("Sending the message failed.", err);
        }
    }

    private void onResponseReceived(Object sender,
            final TypedResponseReceivedEventArgs<MyResponse> e) {
        // Display the result - returned number of characters.
        // Note: Marshal displaying to the correct UI thread.
        myRefresh.post(new Runnable() {
            public void run() {
                myResponseEditText.setText(Integer.toString(e
                        .getResponseMessage().Length));
            }
        });
    }

    private EventHandler<TypedResponseReceivedEventArgs<MyResponse>> myOnResponseHandler = new EventHandler<TypedResponseReceivedEventArgs<MyResponse>>() {
        public void onEvent(Object sender,
                TypedResponseReceivedEventArgs<MyResponse> e) {
            onResponseReceived(sender, e);
        }
    };

    private OnClickListener myOnSendRequestClickHandler = new OnClickListener() {
        public void onClick(View v) {
            onSendRequest(v);
        }
    };
}

曾经是内部的类

public class MyRequest {
    public String Text;
}

曾经是内部的二等舱

public class MyResponse {
    public int Length;
}

显现

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.com.proto1"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

    <application
        android:icon="@drawable/theeye"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".mainj"
            android:label="@string/title_activity_mainj" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".menu"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MENU" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".Infoactive"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.INFOSCREEN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".VoicePrompts"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.VOICEPROMPTS" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".VPon"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.VPON" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".VPoff"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.VPOFF" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <!-- android name must match the name of the java you want to use -->
        <activity
            android:name=".VoiceRecognition"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.RECOGNITIONMENU" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".Recognition"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="ACTION_RECOGNIZE_SPEECH" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".SpeakingAndroid"
            android:label="tts" >
            <intent-filter>
                <action android:name="android.intent.action.SPEAK" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".AndroidNetCommunicationClientActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="ANDROID_NET" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".AndroidNetCommunicationClientActivityInner"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="ANDROID_NET2" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>

</manifest>

score 2 · Accepted Answer

我不确定这个错误，但是 $1 指的是一个匿名内部类（一个没有名字的类），就像你在这里使用的那样

private void onResponseReceived(Object sender,
        final TypedResponseReceivedEventArgs<MyResponse> e) {
    // Display the result - returned number of characters.
    // Note: Marshal displaying to the correct UI thread.
    myRefresh.post(new Runnable() {
        public void run() {
            myResponseEditText.setText(Integer.toString(e
                    .getResponseMessage().Length));
        }
    });
}

从技术上讲，您正在创建一个名为 $1 并且在此类内部的 Runnable 子类。尽管我会尝试重新编译所有内容，但不确定错误是什么

score 0 · Accepted Answer

我想我发现了问题所在

在清单文件中，包被声明AndroidNetCommunicationClientActivityInner为

package="com.example.com.proto1"

但实际上您在该包中没有该类，而是在默认包中，因为在指定的 JAVA 文件中没有包声明。

但是 android 会为那个类寻找那个包，因此会抛出java.lang.NoClassDefFoundError.

score 0 · Accepted Answer

0

您还没有重新编译所有内容。要么，要么你的类路径中有一个任性的条目。

于 2012-08-07T14:48:36.197 回答

java - NoClassDefFound 错误：Logcat 读取 $1 指示内部类错误，但我没有

3 回答 3

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