Question

当我运行流程时，我确实收到一条完成的消息，但是当我查询库时，那里没有任何交易。我无法弄清楚我在做什么错。上周相同的代码正常工作。我正在尝试将“ Hello”发送到另一个节点。类似于YO cordaAPP

这是我的流程课程

package java_bootcamp;

import co.paralleluniverse.fibers.Suspendable;
import net.corda.core.flows.*;
import net.corda.core.identity.Party;
import net.corda.core.transactions.SignedTransaction;
import net.corda.core.transactions.TransactionBuilder;
import net.corda.core.utilities.ProgressTracker;

/* Our flow, automating the process of updating the ledger.
 * See src/main/java/examples/IAmAFlowPair.java for an example. */
@InitiatingFlow
@StartableByRPC
public class TokenIssueFlow extends FlowLogic<SignedTransaction> {
    private final ProgressTracker progressTracker = new ProgressTracker();
    private final Party receiver;
    private final String text;

    public TokenIssueFlow(Party receiver, String text) {
        this.receiver = receiver;
        this.text = text;
    }

    @Override
    public ProgressTracker getProgressTracker() {
        return progressTracker;
    }

    @Suspendable
    @Override
    public SignedTransaction call() throws FlowException {
        // We choose our transaction's notary (the notary prevents double-spends).
        Party notary = getServiceHub().getNetworkMapCache().getNotaryIdentities().get(0);
        // We get a reference to our own identity.
        Party issuer = getOurIdentity();

        /* ============================================================================
         *         TODO 1 - Create our TokenState to represent on-ledger tokens!
         * ===========================================================================*/
        // We create our new TokenState.
        TokenState tokenState = new TokenState(issuer,receiver,text);

        /* ============================================================================
         *      TODO 3 - Build our token issuance transaction to update the ledger!
         * ===========================================================================*/
        // We build our transaction.
        TransactionBuilder transactionBuilder = new TransactionBuilder(notary);
        transactionBuilder.addCommand(new TokenContract.Issue(),issuer.getOwningKey());
        transactionBuilder.addOutputState(tokenState,TokenContract.ID);

        /* ============================================================================
         *          TODO 2 - Write our TokenContract to control token issuance!
         * ===========================================================================*/
        // We check our transaction is valid based on its contracts.
        transactionBuilder.verify(getServiceHub());

        // We sign the transaction with our private key, making it immutable.
        SignedTransaction signedTransaction = getServiceHub().signInitialTransaction(transactionBuilder);

        // We get the transaction notarised and recorded automatically by the platform.
        return subFlow(new FinalityFlow(signedTransaction));
    }
}

Answer 1

向大家道歉。我没有注意。在运行vaultQuery时，我将FLOW类指定为STATE类。

以前运行vaultQuery contractStateType：com.template.HelloFlow：

正确方式：运行vaultQuery contractStateType：java_bootcamp.TokenState

交易未记录

1 个答案: