socket.io 和 okhttp3 冲突答案

【问题标题】：socket.io and okhttp3 conflictsocket.io 和 okhttp3 冲突
【发布时间】：2017-02-07 13:41:31
【问题描述】：

我在一个 Android 项目中使用 okhttp3 进行网络连接，并使用 io.socket:socket.io-client:0.8.3 进行 socket.io 连接。

以下是我的 gradle 文件的摘录。

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile group: 'com.google.code.gson', name: 'gson', version: '2.4'
    compile('com.digits.sdk.android:digits:2.0.5@aar') {
        transitive = true;
    }
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:support-v4:24.2.1'
    compile 'com.android.support:cardview-v7:24.2.1'
    compile 'com.android.support:recyclerview-v7:24.2.1'
    compile 'com.squareup.okhttp3:okhttp:3.6.0'
    compile 'com.squareup.okhttp3:okhttp-ws:3.4.2'
    testCompile 'junit:junit:4.12'
    compile('io.socket:socket.io-client:0.8.3') {
        exclude group: 'org.json', module: 'json'
    }
}

但是，当我运行该项目时，会引发以下异常：

java.lang.NoSuchMethodError: No direct method <init>(Lokhttp3/Request;Lokhttp3/WebSocketListener;Ljava/util/Random;)V in class Lokhttp3/internal/ws/RealWebSocket; or its super classes (declaration of 'okhttp3.internal.ws.RealWebSocket' appears in /data/data/com.fouadkada.mysioapplicationpoc/files/instant-run/dex/slice-okhttp-ws-3.4.2_208c84938ec045e30eddb95384859b3e594c4d81-classes.dex)
                   at okhttp3.OkHttpClient.newWebSocket(OkHttpClient.java:414)
                   at io.socket.engineio.client.transports.WebSocket.doOpen(WebSocket.java:78)
                   at io.socket.engineio.client.Transport$1.run(Transport.java:82)
                   at io.socket.thread.EventThread.exec(EventThread.java:55)
                   at io.socket.engineio.client.Transport.open(Transport.java:77)
                   at io.socket.engineio.client.Socket.probe(Socket.java:472)
                   at io.socket.engineio.client.Socket.onOpen(Socket.java:485)
                   at io.socket.engineio.client.Socket.onHandshake(Socket.java:526)
                   at io.socket.engineio.client.Socket.onPacket(Socket.java:499)
                   at io.socket.engineio.client.Socket.access$1000(Socket.java:31)
                   at io.socket.engineio.client.Socket$5.call(Socket.java:313)
                   at io.socket.emitter.Emitter.emit(Emitter.java:117)
                   at io.socket.engineio.client.Transport.onPacket(Transport.java:134)
                   at io.socket.engineio.client.transports.Polling.access$700(Polling.java:17)
                   at io.socket.engineio.client.transports.Polling$2.call(Polling.java:124)
                   at io.socket.engineio.parser.Parser.decodePayload(Parser.java:251)
                   at io.socket.engineio.client.transports.Polling._onData(Polling.java:134)
                   at io.socket.engineio.client.transports.Polling.onData(Polling.java:106)
                   at io.socket.engineio.client.transports.PollingXHR$5$1.run(PollingXHR.java:111)
                   at io.socket.thread.EventThread$2.run(EventThread.java:80)
                   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
                   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
                   at java.lang.Thread.run(Thread.java:818)

我已经尝试过这里建议的解决方案：https://github.com/socketio/socket.io-client-java/issues/337 但没有成功

有什么想法吗？

【问题讨论】：

标签： java android socket.io okhttp okhttp3

【解决方案1】：

看起来 Socket IO 不支持 OkHttp 3.5.0 中的新 websockets API launched。

您需要向他们发送拉取请求以更新他们的实现以使用 OkHttp 的新 websockets API。或者您可以将自己的代码回滚到 OkHttp 3.4.1。

【讨论】：

【解决方案2】：

在socket.io-client-java的github页面的issues部分发布后，我得到了解决问题的答案。

解决方案是移除对 okhttp-ws:3.4.2 的依赖，所以依赖块变成如下：

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile group: 'com.google.code.gson', name: 'gson', version: '2.4'
    compile('com.digits.sdk.android:digits:2.0.5@aar') {
        transitive = true;
    }
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:support-v4:24.2.1'
    compile 'com.android.support:cardview-v7:24.2.1'
    compile 'com.android.support:recyclerview-v7:24.2.1'
    compile 'com.squareup.okhttp3:okhttp:3.6.0'
    testCompile 'junit:junit:4.12'
    compile('io.socket:socket.io-client:0.8.3') {
        exclude group: 'org.json', module: 'json'
    }
}

【讨论】：