本文介绍了在Hyperledher Fabric V1.0的本地开发环境中使用fabric客户端java sdk（因为没有Rest API支持）时出现问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
根据我从
通过运行eclipse中的代码获得java项目以下异常。
线程main中的异常org.hyperledger.fabric.sdk.exception.TransactionException：INTERNAL
在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.cl ient.test.Test.createChannel（Test.java:151）
at com.ibs.blockchain.client.test.Test.main（Test.java:179)
引起：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 $ 1 StreamClosed.runInContext（ClientCallImpl.java:544）
at io.grpc.internal.ContextRunnable.run（ContextRunnable.java:52）
at io.grpc.internal.SerializingExecutor.run（SerializingExecutor.java： 117）java.uti的
l.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）
at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:617）
at java.lang.Thread.run（ Thread.java:745)
引起：io.netty.handler.codec.http2.Http2Exception：第一个收到的帧不是SETTINGS。前5个字节的十六进制转储：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。 http：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.fireChannelRe ad（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.SingleThreadEventEx ecutor $ 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。
ip 192.168.99.100 给出的是虚拟机ip
注意：
我使用 Windows 7 与
解决方案
你是如何创建加密材料的？我不是在询问您使用的工具，我的问题与您为证书定义的公用名更相关。证书的CN必须与您连接的主机相同。
如果我是你，我会用 cryptogen 工具。然后，我将更改呼叫的URL。我知道你在本地主机，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 createchannel ，因为您之前已创建它。
I have done the following as per the suggestion that I have got from my previous post to communicate with locally running Hyperledger Fabric V1.0 network from java application. But I am getting the exceptions given below and unable to sort it out why it is happening.
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/[email protected]/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/[email protected]/msp/signcerts/[email protected]");
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();
}
}
And this is my docker ps
And by running the code in eclipse java project getting the following exception.
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
Someone please look into the code help me to find where I am doing wrong.
The ip 192.168.99.100 given is the virtual machine ip
Note:I am using Windows 7 with Docker Toolbox by following the steps Building Your First Network and running my java application through eclipse.
Update:
Updated the function createChannel by adding TLS as per @Gari Singh's answer by referring fabric-sdk-java source. But now also same error.Update:
This docker quick start terminal console after running the java client, seems no logs coming
解决方案
How did you created the crypto material?! I'm not asking about the tool that you used, my question is more related to the Common Name that you defined for the certificates. The CN of the certificates have to be the same to the host to which you are connecting.
If I were you, I'd create the crypto material with the cryptogen tool. Then, I'd change the URL for the call. I understand that you are in a localhost, so instead of 192.168.99.100, could you try to call orderer.example.com.
On the other hand, I think that you don't have to execute the createchannel, because you have create it before.
这篇关于在Hyperledher Fabric V1.0的本地开发环境中使用fabric客户端java sdk（因为没有Rest API支持）时出现问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！