DAPP调用api接口

最近太忙了。。。压根没时间写,就单纯贴个代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>百度翻译</title>
    <link rel="stylesheet" type="text/css" href="main.css">
<!--分割线-->
</head>
<!--html-->
<body>
    <div class="container">
        <h1>Info Contract</h1>
        <h2 id="info"></h2>
        <label for="name" class="col-lg-2 control-label">Name</label>
        <input id="name" type="text">
        <label for="name" class="col-lg-2 control-label">Age</label>
        <input id="age" type="text">
        <button id="button">Update Info</button>
	</div>
		<!--这里是展示智能合约2传来的数据-->
		<div class="container2">
			<h1>百度翻译</h1>
			<hr>
	<p id="result"></p>
			<h3 id="translate"></h2>
			<label for="sentence"" class="col-lg-2 control-label">请输入你要翻译的词:</label>
			<input id="sentence" type="text">
			<button id="button2">输入你要翻译的句子:</button>
			<hr>
			<p id="result"></p>

		</div>
	<!--js代码-->
	<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
	<script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script>
	<script src="./md5.js"></script>
	<script type="text/javascript">
	</script>
    <script>

       // Our future code here..
       //验证引入web3成功-
    console.log("打印出web3则引入成功"+web3);
	   if (window.ethereum) {
            // 请求用户授权
            window.ethereum.enable(function(){
                web3.eth.getAccounts((error, accounts) => {
                    web3.eth.defaultAccount = accounts[0];
                    console.log(accounts)
                })
            })
  
        } else if (typeof web3 !== 'undefined') {
            web3 = new Web3(web3.currentProvider);
            web3.eth.defaultAccount = web3.eth.accounts[0];
            console.log(web3.eth.defaultAccount);
        } else {
            // set the provider you want from Web3.providers
            web3 = new Web3(new Web3.providers.HttpProvider("HTTP://127.0.0.1:7545"));
        }
    //此处中括号[]中的内容直接从remix中compile后的ABI处复制.web3.eth.contract接口可以让web3和合约交互
    var infoContract = web3.eth.contract([

	{
		"constant": false,
		"inputs": [
			{
				"name": "_Name",
				"type": "string"
			},
			{
				"name": "_age",
				"type": "uint256"
			}
		],
		"name": "setInfo",
		"outputs": [],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"anonymous": false,
		"inputs": [
			{
				"indexed": false,
				"name": "name",
				"type": "string"
			},
			{
				"indexed": false,
				"name": "age",
				"type": "uint256"
			}
		],
		"name": "Instructor",
		"type": "event"
	},
	{
		"constant": true,
		"inputs": [],
		"name": "getInfo",
		"outputs": [
			{
				"name": "",
				"type": "string"
			},
			{
				"name": "",
				"type": "uint256"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	}


	]);
	console.log(infoContract)
    //此处的address单引号''中内容是从remix中deploy后的地址复制而来
	var info= infoContract.at('0x5ee4ac61e4c8b5a03ee9b8e87ad4c3624bc8a7b5');
	//----分界线

	//翻译合约的abi
	var translateContract=web3.eth.contract(
		[
	{
		"constant": true,
		"inputs": [],
		"name": "getresult",
		"outputs": [
			{
				"name": "",
				"type": "string"
			}
		],
		"payable": false,
		"stateMutability": "view",
		"type": "function"
	},
	{
		"constant": false,
		"inputs": [
			{
				"name": "_sentence",
				"type": "string"
			}
		],
		"name": "translate",
		"outputs": [],
		"payable": false,
		"stateMutability": "nonpayable",
		"type": "function"
	},
	{
		"anonymous": false,
		"inputs": [
			{
				"indexed": false,
				"name": "content",
				"type": "string"
			}
		],
		"name": "translateword",
		"type": "event"
	}
]	

	)
	console.log("translate"+translateContract)
	//此处的address单引号''中内容是从remix中deploy后的地址复制而来
	var translate= translateContract.at('0x89c1feaaa4c40fb347ec2fc6ecb0c35960afdbe8');

    //此处可以参考web3在github上的文档http://github.com/ethereum/web3.js
    //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
	var test0;
	var test1;
	var testsentence;	
		//----分界线
		//展示翻译结果:通过ajax异步请求,不断监听接收的信息,把接收的信息翻译展示给前端
		translate.getresult(function(error,result){	
				var appid = '20201030000603388';
				var key = 'ztWvcJpzwaXWO8ZIV_nn';
				var salt = (new Date).getTime();
				var from = 'auto';
				var to = 'auto';
				var _sentence = $("#sentence").val();
				var str1 = appid + _sentence + salt +key;
				var sign = MD5(str1);
				console.log("输入的句子为:"+result)
				testsentence=result;
				if(!error){
				//调用百度翻译api接口		
					//获取我们输入的句子
					$("#translate").html(result);
					console.log("test="+result);
				
				}
				var query = testsentence;
				var str1 = appid + query + salt +key;
				var sign = MD5(str1);
				$.ajax({
				url: 'http://api.fanyi.baidu.com/api/trans/vip/translate',
				type: 'get',
				dataType: 'jsonp',
				data: {
					q: query,
					appid: appid,
					salt: salt,
					from: from,
					to: to,
					sign: sign
				},
				success: function (data) {
					var res=data.trans_result[0].dst;
					$("#result")[0].innerHTML=res;
					console.log("data.trans_result[0].dst"+data.trans_result[0].dst);
					console.log(res);
				} 
			});
		});
            //这里translate对应智能合约的输入需要翻译的文段方法,此处将html中的sentence设置到智能合约
			$("#button2").click(function(){
				var _sentence = $("#sentence").val();
				translate.translate(_sentence,function(error,data){
					if(!error){
						console.log("ok");

					}
				});
			});
	//更新个人信息合约函数
	info.getInfo(function(error,result){
				if(!error){
					$("#info").html(result[0]+'('+result[1]+')years old');
					test0=result[0];
					test1=result[1];
					for (let key in result) {
            console.log(key + ': ' + result[key])
		}
	

				}
			});
            //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.setInfo(name,age,function(error,result){
					if(!error){
						console.log("ok");

					}
				});
			});
	
	 })
    </script>
</body>
</html>
	

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转载自blog.csdn.net/qq_41569591/article/details/109407395