部署智能合约时获取"undefined"参数数量无效

Question

我正在尝试在testRPC上部署我的第一个投票合约，下面是我的代码..出于某种原因，当我来部署时它会抱怨。

错误似乎来自参数参数。我尝试传递一个空数组，它说"预期为 0 1！我尝试只传递一个名称，它说"value.forEach"不是一个函数。

Web3 = require('web3')
web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
sourceCode = fs.readFileSync('Voting.sol').toString()
solc = require('solc')
compiledCode = solc.compile(sourceCode)
abiDefinition = JSON.parse(compiledCode.contracts[':Voting'].interface)
VotingContract = new web3.eth.Contract(abiDefinition)
byteCode = compiledCode.contracts[':Voting'].bytecode
VotingContract.deploy({
data: byteCode, 
arguments:['Joseph','Sean','Matthew']
}).send({
from: '0x00D1AE0A6fC13B9ecdefA118B94cF95ac16D4ab0', 
gas: 4700000
})
.on('error', function(error) {
console.log(error);
}
.then(function(newContractInstance) {
console.log(newContractInstance.options.address)
}

Answer 1

在迁移中，在部署程序中添加参数。

// Deploy a single contract with constructor arguments
deployer.deploy(A, arg1, arg2, ...);

其中 A 是你的智能合约，arg1、arg2 等是参数

文档中提到了这一点：https://www.trufflesuite.com/docs/truffle/getting-started/running-migrations#deployer-deploy-contract-args-options-

Answer 2

对于需要构造函数参数的合约，尝试这样的事情

var bytecodeWithParam = MyContract.new.getData(
param1,
param2,
{ data: compiledByteCode });

正是这个字节码与参数粘贴到"字节码"字段中。如果你详细看它，你会看到 param1 和 param2 32 字节打包在最后。

另一个例子

var MyContract = web3.eth.contract(abiArray);
// instantiate by address
var contractInstance = MyContract.at(address);
// deploy new contract
var contractInstance = MyContract.new([constructorParam1] [, constructorParam2], {data: '0x12345...', from: myAccount, gas: 1000000});
// Get the data to deploy the contract manually
var contractData = MyContract.new.getData([constructorParam1] [, constructorParam2], {data: '0x12345...'});
// contractData = '0x12345643213456000000000023434234'

https://github.com/ethereum/wiki/wiki/JavaScript-API#web3ethcontract