不通过nodejs web3提交区块链的智能合同事务

Question

当我调用智能契约的任何功能时，它会返回它想要的内容，但在我查询它时没有反映任何变化。这就像事务本身从未发生过一样，尽管它使用test给出了智能contract.Im的正确结果。在松露中测试了合同。和坚固的浏览器。这是我编写的代码的简化版本。

var web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));

console.log("Talking with a geth server", web3.version.api);

function test(){

var sourceCode = fs.readFileSync('contracts/digitalToken.sol','utf8')

var compiled = solc.compile(sourceCode);

console.log(compiled.contracts[":digitalToken"]);

var abiArray = compiled.contracts[":digitalToken"].interface;

abiArray = JSON.parse(abiArray);

var MyContract = web3.eth.contract(abiArray);

var address = "0x1f81b5fa31d049b70556628cc01f22d362c41084";

var contractInstance = MyContract.at(address);

console.log(contractInstance);

var value=executeAddvid(contractInstance)

  console.log({message: "Success",value:value});

  console.log('after passing--');

  console.log({message: "Success",value:value});
var value1=readVidByUser(contractInstance);

console.log({message: "Success",value:value1});

  console.log('after passing--');

  console.log({message: "Success",value:value1});
}

function executeAddvid(contractInstance){

record = contractInstance;

return record.addVid.call('0x0000000000000000000000000000000000000124',5,"ronaldo","0xc9f5a0572d95d5dea1331edcc192dacef51ecbb7",1000000000000000000);

}

function readVidByUser(contractInstance){

record = contractInstance;

return record.readVidByUser.call('0x0000000000000000000000000000000000000124','0x1f81b5fa31d049b70556628cc01f22d362c41084');

}

test();

Answer 1

当您使用.call时，就像在record.addVid.call(...)中一样，您不是在发送事务，而是在本地执行调用。对于要使用.transact的状态更改函数，请参见

record.addVid.call('0x0000000000000000000000000000000000000124',5,"ronaldo","0xc9f5a0572d95d5dea1331edcc192dacef51ecbb7",1000000000000000000, {from:eth.coinbase})