Question

我要使用两台不同的机器来部署Corda网络：首先，我要使用以下配置来部署公证人和oracle服务：

公证人

myLegalName="O=Notary,L=London,C=GB"
keyStorePassword : "cordacadevpass"
trustStorePassword : "trustpass"
p2pAddress="machine-ip1:10004"
notary : {
    validating : false
}
devMode : true

Oracle

myLegalName="O=Oracle,L=London,C=GB"
keyStorePassword : "cordacadevpass"
trustStorePassword : "trustpass"
p2pAddress="machine-ip1:10001"
rpcSettings {
    address="0.0.0.0:10002"
    adminAddress="0.0.0.0:10003"
}
rpcUsers=[
    {
        password=test
        permissions=[
            ALL
        ]
        user=user1
    }
]
devMode : true

第二次，我将部署以下参与方节点：

聚会

myLegalName="O=Party,L=London,C=GB"
keyStorePassword : "cordacadevpass"
trustStorePassword : "trustpass"
p2pAddress="machine-ip2:10001"
rpcSettings {
    address="0.0.0.0:10002"
    adminAddress="0.0.0.0:10003"
}
rpcUsers=[
    {
        password=test
        permissions=[
            ALL
        ]
        user=user1
    }
]
devMode : true

Party一旦开始建立事务的流程，就不会引发此异常：

java.lang.IllegalStateException: Need to specify a notary for the state, or set a default one on TransactionBuilder 
        at net.corda.core.transactions.TransactionBuilder.addOutputState(TransactionBuilder.kt:172) 
        at net.corda.core.transactions.TransactionBuilder.addOutputState$default(TransactionBuilder.kt:171)

调用函数是：

override fun call(): SignedTransaction {

    val notary = serviceHub.networkMapCache.getNotary(CordaX500Name("Notary", "London", "GB"))!!

    val issueState = CashOwningState(amount, ourIdentity)
    val issueCommand = Command(
        CashIssueContract.Commands.Issue(),
        issueState.participants.map { it.owningKey })

    val txBuilder = TransactionBuilder(notary).withItems(
        StateAndContract(issueState, CashIssueContract.TEST_CONTRACT_ID),
        issueCommand)

    txBuilder.verify(serviceHub)

    val fullySignedTx = serviceHub.signInitialTransaction(txBuilder)

    return subFlow(FinalityFlow(fullySignedTx, FINALIZING_TX.childProgressTracker()))
}

似乎在网络中找到了Notary，但是CordApp无法将其识别为公证人。

Answer 1

这不是CorDapp无法识别公证人的问题。抛出此异常的唯一地方是here：

@JvmOverloads
fun addOutputState(state: ContractState, contract: ContractClassName, constraint: AttachmentConstraint = AutomaticHashConstraint): TransactionBuilder {
    checkNotNull(notary) { "Need to specify a notary for the state, or set a default one on TransactionBuilder initialisation" }
    addOutputState(state, contract, notary!!, constraint = constraint)
    return this
}

在通过公证员实例化TransactionBuilder时，不检查通过的一方是否实际上是公证人。

您必须尝试将输出状态添加到TransactionBuilder，而在代码中没有公证人的地方。

在网络中部署默认公证人节点的正确配置是什么？

1 个答案: