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index.html
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<html>
<head>
<link rel="stylesheet" type="text/css" href="css/main.css">
<!--引入web3-->
<script src="https://cdn.jsdelivr.net/gh/ethereum/web3.js/dist/web3.min.js"></script>
</head>
<body>
<div class="container">
<h1>Dapp Demo</h1>
<h2 id="info"></h2>
<label>Name:</label>
<input type="text" id="name">
<button id="button">Create</button>
</div>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script>
var a = document.getElementById("info");
<!--验证引入web3成功-->
console.log("web3" + web3);
<!--连接web3的provider或本地，其实本例中值得就是lite-server所创建的那个服务器环境-->
if (typeof web3 !== 'undefined') {
web3 = new Web3(web3.currentProvider);
} else {
// Set the provider you want from Web3.providers
web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
}
<!--此处中括号[]中的内容直接从remix中compile后的ABI处复制-->
var infoContract = web3.eth.contract(
[
{
"constant": false,
"inputs": [
{
"name": "_name",
"type": "string"
}
],
"name": "createRandomZombie",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "zombieId",
"type": "uint256"
},
{
"indexed": false,
"name": "name",
"type": "string"
},
{
"indexed": false,
"name": "dna",
"type": "uint256"
}
],
"name": "NewZombie",
"type": "event"
},
{
"constant": true,
"inputs": [
{
"name": "_zombieId",
"type": "uint256"
}
],
"name": "getZombieDetails",
"outputs": [
{
"name": "name",
"type": "string"
},
{
"name": "dna",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "totalSupply",
"outputs": [
{
"name": "_totalSupply",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": true,
"inputs": [
{
"name": "",
"type": "uint256"
}
],
"name": "zombies",
"outputs": [
{
"name": "name",
"type": "string"
},
{
"name": "dna",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
}
]
);
var info = infoContract.at('0xF1191B8f85a17AD6c2e0feAaCeCe36Eb1E6deBF7');
<!--也就是web3.js提供的对于智能合约方法的操作与交互-->
<!--getInfo方法是对上面的id="info"设置，result是从智能合约获得的结果-->
info.totalSupply(function (error, result) {
if (!error) {
var re = result.toNumber();
console.log(re);
for (i = 0;
i < re;
i++
){
info.zombies(i, function (error1, result1) {
if (!error1) {
a.innerHTML = a.innerHTML+"<h5>" + "Name: " + result1[0] + " DNA: " + result1[1] + "</h5>";
// $("#info").html(result[0]+'('+result[1]+')years old');
}
});
}
// {
// }
// $("#info").html(result[0]+'('+result[1]+')years old');
}
});
<!--这里setInfo对应智能合约的set方法，此处将html中的name和age设置到智能合约-->
$("#button").click(function () {
var name = $("#name").val();
var age = $("#age").val();
info.createRandomZombie(name, function (error, result) {
if (!error) {
console.log("ok");
}
});
});
</script>
</body>
</html>