后台修改

xiaoyong931011

2023-03-24 f38db4c91a3655a9024aa2f1ada81a153741b855

 src/main/java/cc/mrbird/febs/mall/chain/service/ChainService.java

@@ -6,6 +6,7 @@
import cn.hutool.core.util.ObjectUtil;
import io.reactivex.Flowable;
import io.reactivex.disposables.Disposable;
import io.reactivex.schedulers.Schedulers;
import lombok.extern.slf4j.Slf4j;
import org.java_websocket.WebSocket;
import org.java_websocket.exceptions.WebsocketNotConnectedException;
@@ -26,6 +27,9 @@
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

/**
 * @author
@@ -148,6 +152,83 @@

    }

    public static void wssContractEventListener2(BigInteger startBlock, ContractEventService event, String type) {
        ChainEnum chain = ChainEnum.getValueByName(type);

        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
        WebSocketService ws = null;
        try{
            WebSocketClient webSocketClient = new WebSocketClient(new URI("wss://bsc-mainnet.nodereal.io/ws/v1/fcb1ae31845147dcabb183db57336218"));
            ws = new WebSocketService(webSocketClient, true);
            ws.connect();
            Web3j web3j = Web3j.build(ws);

            EthUsdtContract ethUsdtContract = wssContract(chain.getPrivateKey(), chain.getContractAddress(), web3j);
            EthFilter filter = getFilter(startBlock, startBlock, chain.getContractAddress());
            Flowable<EthUsdtContract.TransferEventResponse> eventFlowable = ethUsdtContract.transferEventFlowable(filter);

            // 订阅事件流，将事件编译和处理放到单独的线程中执行
            Disposable subscribe = eventFlowable.observeOn(Schedulers.from(executor))
                    .subscribe(event::compile, error -> {
                        log.error("币安监听异常", error);
                        error = error.getCause();
                        if (error instanceof WebsocketNotConnectedException) {
                            log.error("WebSocket连接已断开，正在尝试重新连接...");
                            // 异常情况下，递归重试连接和订阅
                            int retries = 3;
                            while (retries-- > 0) {
                                try {
                                    Thread.sleep(1000);
                                    wssContractEventListener2(startBlock, event, type);
                                    return;
                                } catch (Exception ex) {
                                    log.error("币安监听异常", ex);
                                }
                            }
                        } else {
                            log.error("币安监听异常", error);
                        }
                    });

            // 使用try-with-resources语句，确保WebSocket连接和Disposable对象能够被及时关闭和释放
            try{
                // 等待订阅事件流的线程结束，然后关闭连接和释放资源
                executor.schedule(ws::close, 1, TimeUnit.SECONDS);
                executor.awaitTermination(2, TimeUnit.SECONDS);
                subscribe.dispose();
            } catch (InterruptedException e) {
                e.printStackTrace();
                // 将递归重试连接和订阅改为有限次数的重试，避免出现无限递归的情况
                int retries = 3;
                while (retries-- > 0) {
                    try {
                        Thread.sleep(1000);
                        wssContractEventListener2(startBlock, event, type);
                        return;
                    } catch (Exception ex) {
                        log.error("币安监听异常", ex);
                    }
                }
            }
        } catch (Exception e) {
            log.error("币安监听异常", e);

            // 将递归重试连接和订阅改为有限次数的重试，避免出现无限递归的情况
            int retries = 3;
            while (retries-- > 0) {
                try {
                    Thread.sleep(1000);
                    wssContractEventListener2(startBlock, event, type);
                    return;
                } catch (Exception ex) {
                    log.error("币安监听异常", ex);
                }
            }
        } finally {
            executor.shutdownNow();
        }
    }



    public static void wssBaseCoinEventListener(BigInteger startBlock, BaseCoinService event) {
@@ -156,7 +237,7 @@
        Web3j web3j = null;

        try {
            webSocketClient = new WebSocketClient(new URI("wss://bsc-mainnet.nodereal.io/ws/v1/78074065950e4915aef4f12b6f357d16"));
            webSocketClient = new WebSocketClient(new URI("wss://bsc-mainnet.nodereal.io/ws/v1/fcb1ae31845147dcabb183db57336218"));
            ws = new WebSocketService(webSocketClient, true);
            ws.connect();
            web3j = Web3j.build(ws);