在Hyperledher Fabric V1.0的本地开发环境中使用结构客户端java sdk（因为没有Rest API支持）时出现问题

时间：2017-08-25 11:56:09

标签： java blockchain hyperledger hyperledger-fabric

根据我从previous post获得与java应用程序本地运行Hyperledger Fabric V1.0网络通信的建议，我做了以下操作。但我得到了下面给出的例外情况，无法解释为什么会发生这种情况。

public class Test {

    final HFClient client = HFClient.createNewInstance();
    Channel channel;
    TransactionProposalRequest proposalRequest;

    void setupCryptoMaterialsForClient() throws CryptoException, InvalidArgumentException{
        // Set default crypto suite for HF client

        client.setCryptoSuite(CryptoSuite.Factory.getCryptoSuite());

        client.setUserContext(new User() {

            public String getName() {
                return "PeerAdmin";
            }

            public Set<String> getRoles() {
                return null;
            }

            public String getAccount() {
                return null;
            }

            public String getAffiliation() {
                return null;
            }

            public Enrollment getEnrollment() {
                return new Enrollment() {
                    public PrivateKey getKey() {
                        PrivateKey privateKey = null;
                        try {
                            File privateKeyFile = findFileSk("C:/Users/Public/HyperledgerFabricV1/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore");
                            privateKey = getPrivateKeyFromBytes(IOUtils.toByteArray(new FileInputStream(privateKeyFile)));
                        } catch (InvalidKeySpecException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        } catch (NoSuchProviderException e) {
                            e.printStackTrace();
                        } catch (NoSuchAlgorithmException e) {
                            e.printStackTrace();
                        }
                        return privateKey;
                    }

                    public String getCert() {

                        String certificate = null;
                        try {
                            File certificateFile = new File("C:/Users/Public/HyperledgerFabricV1/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts/Admin@org1.example.com-cert.pem");
                            certificate = new String(IOUtils.toByteArray(new FileInputStream(certificateFile)), "UTF-8");
                        } catch (UnsupportedEncodingException e) {
                            e.printStackTrace();
                        } catch (FileNotFoundException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        return certificate;
                    }
                };
            }

            public String getMspId() {
                return "Org1MSP";
            }
        });
    }

    static File findFileSk(String directorys) {

        File directory = new File(directorys);

        File[] matches = directory.listFiles((dir, name) -> name.endsWith("_sk"));

        if (null == matches) {
            throw new RuntimeException(format("Matches returned null does %s directory exist?", directory.getAbsoluteFile().getName()));
        }

        if (matches.length != 1) {
            throw new RuntimeException(format("Expected in %s only 1 sk file but found %d", directory.getAbsoluteFile().getName(), matches.length));
        }

        return matches[0];
    }

    static PrivateKey getPrivateKeyFromBytes(byte[] data) throws IOException, NoSuchProviderException, NoSuchAlgorithmException, InvalidKeySpecException {
        final Reader pemReader = new StringReader(new String(data));

        final PrivateKeyInfo pemPair;
        try (PEMParser pemParser = new PEMParser(pemReader)) {
            pemPair = (PrivateKeyInfo) pemParser.readObject();
        }

        PrivateKey privateKey = new JcaPEMKeyConverter().setProvider(BouncyCastleProvider.PROVIDER_NAME).getPrivateKey(pemPair);

        return privateKey;
    }


void createChannel() throws InvalidArgumentException, TransactionException{
    channel = client.newChannel("mychannel");
    Properties ordererProperties = new Properties();
    ordererProperties.setProperty("pemFile", "C:/Users/Public/HyperledgerFabricV1/fabric-samples/first-network/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt");
    ordererProperties.setProperty("trustServerCertificate", "true"); //testing environment only NOT FOR PRODUCTION!
    ordererProperties.setProperty("hostnameOverride", "orderer.example.com");
    ordererProperties.setProperty("sslProvider", "openSSL");
    ordererProperties.setProperty("negotiationType", "TLS");
    ordererProperties.put("grpc.NettyChannelBuilderOption.keepAliveTime", new Object[] {5L, TimeUnit.MINUTES});
    ordererProperties.put("grpc.NettyChannelBuilderOption.keepAliveTimeout", new Object[] {8L, TimeUnit.SECONDS});
    channel.addOrderer(client.newOrderer("orderer.example.com", "grpc://192.168.99.100:7050",ordererProperties));

    Properties peerProperties = new Properties();
    peerProperties.setProperty("pemFile", "C:/Users/Public/HyperledgerFabricV1/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/server.crt"); 
    peerProperties.setProperty("trustServerCertificate", "true"); //testing environment only NOT FOR PRODUCTION!    
    peerProperties.setProperty("hostnameOverride", "peer0.org1.example.com");
    peerProperties.setProperty("sslProvider", "openSSL");
    peerProperties.setProperty("negotiationType", "TLS");
    peerProperties.put("grpc.NettyChannelBuilderOption.maxInboundMessageSize", 9000000);
    channel.addPeer(client.newPeer("peer0.org1.example.com", "grpc://192.168.99.100:7051",peerProperties));
    channel.initialize();
}

    void creteTransactionalProposal(){
        proposalRequest = client.newTransactionProposalRequest();

        final ChaincodeID chaincodeID = ChaincodeID.newBuilder()
                .setName("asset")
                .setVersion("1.0")
                .setPath("github.com/mygitId/myFabricRepo/assetChainCode")
                .build();

        proposalRequest.setChaincodeID(chaincodeID);
        proposalRequest.setFcn("createAsset");
        //proposalRequest.setFcn("init");
        proposalRequest.setProposalWaitTime(TimeUnit.SECONDS.toMillis(10));
        proposalRequest.setArgs(new String[]{"ORG1", "{\"assetKey\":\"a1\",\"assetName\":\"aname1\",\"assetType\":\"atype1\",\"slNo\":\"slno1\",\"orderDate\":\"19-05-2017\"}"});
    }

    void sendProposal() throws ProposalException, InvalidArgumentException, InterruptedException, ExecutionException{
        final Collection<ProposalResponse> responses = channel.sendTransactionProposal(proposalRequest);
        CompletableFuture<BlockEvent.TransactionEvent> txFuture = channel.sendTransaction(responses, client.getUserContext());
        BlockEvent.TransactionEvent event = txFuture.get();
        System.out.println(event.toString());
    }

    public static void main(String args[]) throws Exception {
        Test t = new Test();
        t.setupCryptoMaterialsForClient();
        t.createChannel();
        t.creteTransactionalProposal();
        t.sendProposal();
    }
}

这是我的docker ps enter image description here

通过运行eclipse java项目中的代码获得以下异常。

Exception in thread "main" org.hyperledger.fabric.sdk.exception.TransactionException: INTERNAL
    at org.hyperledger.fabric.sdk.OrdererClient.sendDeliver(OrdererClient.java:286)
    at org.hyperledger.fabric.sdk.Orderer.sendDeliver(Orderer.java:165)
    at org.hyperledger.fabric.sdk.Channel.getLatestBlock(Channel.java:1074)
    at org.hyperledger.fabric.sdk.Channel.getConfigurationBlock(Channel.java:898)
    at org.hyperledger.fabric.sdk.Channel.parseConfigBlock(Channel.java:826)
    at org.hyperledger.fabric.sdk.Channel.initialize(Channel.java:526)
    at com.ibs.blockchain.client.test.Test.createChannel(Test.java:151)
    at com.ibs.blockchain.client.test.Test.main(Test.java:179)
Caused by: io.grpc.StatusRuntimeException: INTERNAL
    at io.grpc.Status.asRuntimeException(Status.java:540)
    at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:392)
    at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:426)
    at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:76)
    at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:512)
    at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:429)
    at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:544)
    at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
    at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:117)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: io.netty.handler.codec.http2.Http2Exception: First received frame was not SETTINGS. Hex dump for first 5 bytes: 1503010002
    at io.netty.handler.codec.http2.Http2Exception.connectionError(Http2Exception.java:85)
    at io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.verifyFirstFrameIsSettings(Http2ConnectionHandler.java:309)
    at io.netty.handler.codec.http2.Http2ConnectionHandler$PrefaceDecoder.decode(Http2ConnectionHandler.java:217)
    at io.netty.handler.codec.http2.Http2ConnectionHandler.decode(Http2ConnectionHandler.java:401)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:411)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:341)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:363)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:129)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:642)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:565)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:479)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:441)
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
    at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
    ... 1 more

有人请查看代码，帮助我找到我做错的地方。

给出的ip 192.168.99.100是虚拟机ip

注意：的 我正在使用 Windows 7 和Docker Toolbox，执行步骤Building Your First Network并通过eclipse运行我的java应用程序。

更新 通过引用fabric-sdk-java来源，根据@Gari Singh的回答添加TLS，更新了函数createChannel。但现在也是同样的错误。 的更新
这个docker快速启动终端控制台运行java客户端后，似乎没有日志来了 enter image description here

2 个答案:

答案 0 :(得分：2)

如果您使用了 first-network 示例，则会启用TLS，并且在上面的代码中您没有使用TLS。所以我最好的猜测是错误是由于你的客户端没有使用TLS引起的。

答案 1 :(得分：1)

你是如何创建加密材料的？我没有询问您使用的工具，我的问题与您为证书定义的公用名更相关。证书的CN必须与您要连接的主机相同。

如果我是你，我会使用加密工具创建加密材料。然后，我更改了呼叫的URL。我知道你在本地主机中，所以你可以尝试拨打orderer.example.com而不是192.168.99.100。

另一方面，我认为您不必执行ggplot(data = chrom_sizes) + # base rectangles for the chroms, with numeric value for each chrom on the x-axis geom_rect(aes(xmin = as.numeric(chromosome) - 0.2, xmax = as.numeric(chromosome) + 0.2, ymax = size, ymin = 0), colour="black", fill = "white") + # rotate the plot 90 degrees coord_flip() + # black & white color theme theme(axis.text.x = element_text(colour = "black"), panel.grid.major = element_blank(), panel.grid.minor = element_blank(), panel.background = element_blank()) + # give the appearance of a discrete axis with chrom labels scale_x_discrete(name = "chromosome", limits = names(chrom_key)) + # add bands for centromeres geom_rect(data = centromeres, aes(xmin = as.numeric(chromosome) - 0.2, xmax = as.numeric(chromosome) + 0.2, ymax = end, ymin = start)) + # add bands for CNA value geom_rect(data = sample_cns, aes(xmin = as.numeric(chromosome) - 0.2, xmax = as.numeric(chromosome) + 0.2, ymax = end, ymin = start, fill = CNA)) + scale_fill_manual(values = group.colors) + # add 'gain' gene markers geom_text_repel(data = subset(sample_cns, sample_cns$CNA == "gain"), aes(x = chromosome, y = start, label = gene), color = "red", show.legend = FALSE) + # add 'loss' gene markers geom_text_repel(data = subset(sample_cns, sample_cns$CNA == "loss"), aes(x = chromosome, y = start, label = gene ), color = "blue", show.legend = FALSE) + ggtitle("Copy Number Alterations") + # supress scientific notation on the y-axis scale_y_continuous(labels = comma) + ylab("region (bp)") ，因为您之前已经创建了它。

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