我正在嘗試從 fabric-samples 安裝 facar 的 java 鏈代碼，但出現錯誤。https://github.com/hyperledger/fabric-samples/tree/release-1.4/chaincode/fabcar/java在鏈碼上方，我正在嘗試并在鏈碼實例化期間出現錯誤有人可以幫助我嗎，非常感謝并提前致謝。我正在使用基本網絡文件夾和下面的腳本來創建和安裝網絡，實例化和調用鏈代碼。#!/bin/bash## Copyright IBM Corp All Rights Reserved## SPDX-License-Identifier: Apache-2.0## Exit on first error, print all commands.set -ev# don't rewrite paths for Windows Git Bash usersexport MSYS_NO_PATHCONV=1docker-compose -f docker-compose.yml downdocker-compose -f docker-compose.yml up -d ca.example.com orderer.example.com peer0.org1.example.com couchdbdocker ps -a# wait for Hyperledger Fabric to start# incase of errors when running later commands, issue export FABRIC_START_TIMEOUT=<larger number>export FABRIC_START_TIMEOUT=10#echo ${FABRIC_START_TIMEOUT}sleep ${FABRIC_START_TIMEOUT}# Create the channeldocker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer0.org1.example.com peer channel create -o orderer.example.com:7050 -c mychannel -f /etc/hyperledger/configtx/channel.tx# Join peer0.org1.example.com to the channel.docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/[email protected]/msp" peer0.org1.example.com peer channel join -b mychannel.blockdocker-compose -f docker-compose.yml up -d clisleep 5
3 回答
Qyouu
TA貢獻1786條經驗 獲得超11個贊
也許你忘記了@Default裝飾器
@Contract(name = "MyContract",
info = @Info(
title = "My Contract",
description = "",
version = "0.0.1"
)
)
@Default
public class MyContract implements ContractInterface {
慕標琳琳
TA貢獻1830條經驗 獲得超9個贊
調用了未定義的合約方法
在代碼的前幾行。這意味著您傳遞給調用的函數不存在于鏈碼中，您可以檢查鏈碼并查看 initLedger 是否存在？或者是否存在任何拼寫錯誤。希望這是有用的。
森林海
TA貢獻2011條經驗 獲得超2個贊
如果您在實例化鏈碼時遇到此問題，則可以使用您的自定義實現覆蓋ContractInterface中給出的以下方法。
/**
* Invoked for any transaction that does not exist.
*
* This will throw an exception. If you wish to alter the exception thrown or
* if you wish to consider requests for transactions that don't exist as not an
* error, subclass this method.
*
* @param ctx the context as created by {@link #createContext(ChaincodeStub)}.
*/
default void unknownTransaction(Context ctx) {
throw new ChaincodeException("Undefined contract method called");
}
否則，如果在調用現有事務時出現問題，則確保注釋@Transaction() 存在于事務方法中。
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