如何修复无效地址错误？带有 MetaMask 的 Web3 JS

Question

我将我的合约部署到了Goerli测试网。部署成功。我在 Remix 中测试了它。

合约代码：

pragma solidity ^0.5.0;

contract Test{
    
    string private str;
    
    constructor() public {
        str = " ";
    }
    
    function getStr() public view returns(string memory  _str){
        _str = str;
    }
    
    function setStr(string memory  _str) public{
        str = _str;
    }
}

然后我尝试使用 web3 和 MetaMask 制作一个网络界面。

<script>
        ethereum.enable()
        var abi = [
    {
        "constant": false,
        "inputs": [
            {
                "internalType": "string",
                "name": "_str",
                "type": "string"
            }
        ],
        "name": "setStr",
        "outputs": [],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "inputs": [],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "constructor"
    },
    {
        "constant": true,
        "inputs": [],
        "name": "getStr",
        "outputs": [
            {
                "internalType": "string",
                "name": "_str",
                "type": "string"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    }
    ];
        var address = 0x4316d047388e61EBC3Ed34DFf4cEE215840decDa;
        var myContract = web3.eth.contract(abi);
        var TestC = myContract.at(address);
        console.log(TestC);
    var x = TestC.getStr();
</script>

当我运行它时，它返回：

Uncaught Error: invalid address

at c (inpage.js:1)

at inputCallFormatter (inpage.js:1)

at inpage.js:1

at Array.map ()

at o.formatInput (inpage.js:1)

at o.toPayload (inpage.js:1)

at w.e [as call] (inpage.js:1)

at u.call (inpage.js:1)

at u.execute (inpage.js:1)

at (index):46

我需要做什么？

Answer 1

你的变量 address 应该是一个十六进制字符串，而不是一个十六进制数字——即使它最终被以太坊节点变成了一个数字。

试试这个：

        var address = '0x4316d047388e61EBC3Ed34DFf4cEE215840decDa';

如何修复无效地址错误？带有 MetaMask 的 Web3 JS

How to fix invalid address Error? Web3 JS with MetaMask

javascript

ethereum

solidity

web3