{"id":1808,"date":"2023-03-25T12:59:53","date_gmt":"2023-03-25T04:59:53","guid":{"rendered":""},"modified":"2023-03-25T12:59:53","modified_gmt":"2023-03-25T04:59:53","slug":"web3.js \u8c03\u7528\u667a\u80fd\u5408\u7ea6\u5199\u51fd\u6570","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/1808.html","title":{"rendered":"web3.js \u8c03\u7528\u667a\u80fd\u5408\u7ea6\u5199\u51fd\u6570"},"content":{"rendered":"


\n <\/head>
\n <\/p>\n

\n

web3.js \u8c03\u7528\u667a\u80fd\u5408\u7ea6\u5199\u51fd\u6570<\/h1>\n<\/p><\/div>\n
\n \u8c03\u7528\u667a\u80fd\u5408\u7ea6\u5199\u51fd\u6570\uff0c\u4f1a\u6539\u53d8\u533a\u5757\u94fe\u72b6\u6001\uff0c\u9700\u8981\u6d88\u8017Gas\uff0c\u88ab\u89c6\u4e3a\u4e00\u79cd\u4ea4\u6613\u64cd\u4f5c\u3002\n <\/div>\n
\n \u672c\u7ae0\u5c06\u4f7f\u7528web3.js \u2013 \u90e8\u7f72\u667a\u80fd\u5408\u7ea6 \u7ae0\u8282\u4e2d\u90e8\u7f72\u597d\u7684\u5408\u7ea6\uff0c\u8c03\u7528\u6b64\u5408\u7ea6\u7684
\n set()<\/b>\u51fd\u6570\u3002\n <\/div>\n
\n \u8c03\u7528\u667a\u80fd\u5408\u7ea6\u5199\u51fd\u6570\u7684\u6267\u884c\u6b65\u9aa4\u4e0e\u524d\u9762\u7ae0\u8282\uff1aweb3.js \u2013 \u4ea4\u6613\u64cd\u4f5c\u3001web3.js \u2013 \u90e8\u7f72\u667a\u80fd\u5408\u7ea6 \u6d89\u53ca\u5230\u4ea4\u6613\u64cd\u4f5c\u6b65\u9aa4\u57fa\u672c\u76f8\u540c\uff0c\u5305\u62ec\uff1a\n <\/div>\n

\u6784\u5efa\u4ea4\u6613\u5bf9\u8c61<\/span>
\n \u7b7e\u7f72\u4ea4\u6613<\/span>
\n \u5e7f\u64ad\u4ea4\u6613<\/span> <\/p>\n

\n \u56e0\u6b64\u6211\u4eec\u5c06\u4f7f\u7528\u76f8\u540c\u7684\u57fa\u672c\u8bbe\u7f6e\uff0c\u5982\u4e0b\u6240\u793a\uff1a\n <\/div>\n
\n app.js\u6587\u4ef6\n <\/div>\n
\n
var <\/span>Tx     = require('ethereumjs-tx'<\/span>).Transaction\r\nconst Web3 = require('web3'<\/span>)\r\nconst web3 = new <\/span>Web3('https:\/\/ropsten.infura.io\/YOUR_INFURA_API_KEY'<\/span>)\r\nconst account1 = ''<\/span><\/span> \/\/ Your account address 1\r\nconst account2 = '' \/\/ Your account address 2\r\nconst privateKey1 = Buffer.from<\/span>('YOUR_PRIVATE_KEY_1'<\/span>, 'hex'<\/span><\/span>)\r\nconst privateKey2 = Buffer.from<\/span>('YOUR_PRIVATE_KEY_2'<\/span>, 'hex')<\/pre>\n
<\/code>\n  <\/div>\n
\u6784\u5efa\u4ea4\u6613\u5bf9\u8c61<\/h2>\n
\n    \u5982\u4e0b\u6240\u793a\uff0c\u6784\u5efa\u4ea4\u6613\u5bf9\u8c61:\n  <\/div>\n
\n
const txObject = {\r\n  nonce:    web3.utils.toHex<\/span>(txCount),\r\n  gasLimit: web3.utils.toHex<\/span>(800000),\r\n  gasPrice: web3.utils.toHex<\/span>(web3.utils.toWei<\/span>('10'<\/span>, 'gwei'<\/span>)),\r\n  to: contractAddress,\r\n  data: data\r\n}<\/pre>\n
<\/code>\n  <\/div>\n
\n   nonce<\/b>\u3001
\n   gasLimit<\/b>\u3001
\n   gasPrice<\/b>\u7684\u4f7f\u7528\uff0c\u4e0e\u524d\u9762\u7ae0\u8282\u57fa\u672c\u76f8\u540c\uff0c\u4e0d\u518d\u8d58\u8ff0\u3002\u5269\u4e0b2\u4e2a\u53c2\u6570\u8bf4\u660e\u5982\u4e0b\uff1a\n  <\/div>\n
  to<\/b> \u2013 \u6b64\u53c2\u6570\u5c06\u662f\u5df2\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u7684\u5730\u5740\u3002\u53ef\u4ee5\u4eceetherscan\u4e2d\u83b7\u53d6\u3002<\/span>
\n  data<\/b> \u2013 \u88ab\u8c03\u7528\u7684\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u7684\u5341\u516d\u8fdb\u5236\u8868\u793a\u3002<\/span> <\/p>\n
\n
const contractAddress = '0x30951343d6d80d2c94897f1a81c53cc030aef879'<\/span>\r\nconst contractABI = [\r\n    {\r\n        \"constant\"<\/span><\/span>: false<\/span>,\r\n        \"inputs\"<\/span><\/span><\/span>: [\r\n            {\r\n                \"internalType\"<\/span><\/span>: \"string\"<\/span><\/span><\/span><\/span>,\r\n                \"name\"<\/span><\/span><\/span><\/span>: \"_value\"<\/span>,\r\n                \"type\"<\/span><\/span><\/span><\/span><\/span>: \"string\"\r\n            }\r\n        ],\r\n        \"name\": \"set\"<\/span>,\r\n        \"outputs\"<\/span><\/span>: [],\r\n        \"payable\"<\/span><\/span><\/span>: false<\/span>,\r\n        \"stateMutability\"<\/span><\/span><\/span>: \"nonpayable\"<\/span><\/span>,\r\n        \"type\": \"function\"<\/span><\/span>\r\n    },\r\n    {\r\n        \"constant\": true<\/span><\/span>,\r\n        \"inputs\": [],\r\n        \"name\": \"get\"<\/span>,\r\n        \"outputs\": [\r\n            {\r\n                \"internalType\": \"string\",\r\n                \"name\": \"\"<\/span>,\r\n                \"type\": \"string\"\r\n            }\r\n        ],\r\n        \"payable\": false<\/span>,\r\n        \"stateMutability\": \"view\"<\/span>,\r\n        \"type\": \"function\"\r\n    },\r\n    {\r\n        \"inputs\": [],\r\n        \"payable\": false<\/span>,\r\n        \"stateMutability\": \"nonpayable\",\r\n        \"type\": \"constructor\"<\/span>\r\n    }\r\n]\r\nconst contract = new <\/span>web3.eth.Contract<\/span>(contractABI, contractAddress)<\/pre>\n
<\/code>\n  <\/div>\n
\n    \u5173\u4e8e
\n   data<\/b>\u53c2\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528web3.js\u51fd\u6570
\n   encodeABI()<\/b>\uff0c\u628acontract\u5bf9\u8c61\u4e2d\u7684\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u8868\u793a\u3002\u5982\u4e0b\u6240\u793a\uff1a\n  <\/div>\n
\n
const data = contract.methods.set<\/span>(\"qikegu\"<\/span>).encodeABI<\/span>()<\/pre>\n
<\/code>\n  <\/div>\n
\n    \u81f3\u6b64\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86\u51c6\u5907\u5de5\u4f5c\uff0c\u63a5\u4e0b\u6765\u5c31\u8981\u6267\u884c\u8c03\u7528\u4e86\u3002\n  <\/div>\n
\n
\u7ae0\u8282<\/h2>\n
   web3.js \u2013 \u6267\u884c\u5199\u51fd\u6570\u8c03\u7528<\/span>\n  <\/div>\n
 <\/body>
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