摘要：备注：安装时间可能有点长，请耐心等待… 备注：安装时间可能有点长，请耐心等待… 备注：安装时间可能有点长，请耐心等待…
开源工具和语言
一、brewMacOS包管理器
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
二、Solidity以太坊智能合约语言
brew install solidity
备注：安装时间可能有点长，请耐心等待… 备注：安装时间可能有点长，请耐心等待… 备注：安装时间可能有点长，请耐心等待…
如果碰见下面的错误，请移步：http://blog.csdn.net/Sico2Sico/article/details/71082130
The GitHub credentials in the macOS keychain may be invalid. Clear them with: printf "protocol=https/nhost=github.com/n" | git credential-osxkeychain erase Or create a personal access token: https://github.com/settings/tokens/new?scopes=gist,public_repo&description=Homebrew
三、geth运行以太坊节点
下载Source code (tar.gz)
liyuechun:Downloads yuechunli$ cd go-ethereum-1.5.9 liyuechun:go-ethereum-1.5.9 yuechunli$ pwd /Users/liyuechun/Downloads/go-ethereum-1.5.9 liyuechun:go-ethereum-1.5.9 yuechunli$ make geth
建立私链
1. 创建一个文件夹来存储你的私链数据
liyuechun:1015 yuechunli$ mkdir privchain liyuechun:1015 yuechunli$ pwd /Users/liyuechun/Desktop/1015 liyuechun:1015 yuechunli$ ls privchain liyuechun:1015 yuechunli$
2. 使用geth来加载
geth --rpc --rpcaddr 127.0.0.1 --rpcport 8545 --dev --datadir privchain
执行上面的命令，你应该能看到下面的信息：
INFO [10-15 03:14:50] IPC endpoint opened: /Users/liyuechun/Desktop/1015/privchain/geth.ipc INFO [10-15 03:14:50] HTTP endpoint opened: http://127.0.0.1:8545
如果你切换到privchain文件夹里面，你会看到geth, geth.ipc, 和 keystore。
liyuechun:1015 yuechunli$ cd privchain/ liyuechun:privchain yuechunli$ ls geth geth.ipc keystore liyuechun:privchain yuechunli$
- 保持节点的运行，不要关闭终端，重新打开一个终端，使用
geth attach连接节点，并且打开geth console
liyuechun:privchain yuechunli$ geth attach ipc:/Users/liyuechun/Desktop/1015/privchain/geth.ipc Welcome to the Geth JavaScript console! instance: Geth/v1.7.1-stable-05101641/darwin-amd64/go1.9.1 modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 shh:1.0 txpool:1.0 web3:1.0 >
3. 相关api命令
查看账户
> personal.listAccounts [] >
创建账户
> personal.newAccount('liyuechun') "0xb6d7d842e7dc9016fa6900a183b2be26fc90b2d8" >
PS：里面的liyuechun是你账户的密码，输入你自己喜欢的密码。
查看账户
> personal.listAccounts ["0xb6d7d842e7dc9016fa6900a183b2be26fc90b2d8"] >
4. web3命令
https://ethereumbuilders.gitbooks.io/guide/content/en/ethereum_javascript_api.html
> web3.eth.coinbase "0xb6d7d842e7dc9016fa6900a183b2be26fc90b2d8" >
5. 编写智能合约代码
pragma solidity ^0.4.4; contract test { function multiply(uint a) returns(uint d){ return a * 7; } }
6. 获取智能合约字节码和abi
代码拷贝到https://remix.ethereum.org，编译，然后拷贝字节码。
6060604052341561000f57600080fd5b5b60ab8061001e6000396000f30060606040526000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063c6888fa114603d575b600080fd5b3415604757600080fd5b605b60048080359060200190919050506071565b6040518082815260200191505060405180910390f35b60006007820290505b9190505600a165627a7a7230582067d7c851e14e862886b6f53dad6825135557fb3a4b691350c94ea5b80605f6770029
{ "contract_name": "test", "abi": [ { "constant": false, "inputs": [ { "name": "a", "type": "uint256" } ], "name": "multiply", "outputs": [ { "name": "d", "type": "uint256" } ], "payable": false, "type": "function" } ], "unlinked_binary": "0x60606040523415600e57600080fd5b5b60978061001d6000396000f300606060405263ffffffff7c0100000000000000000000000000000000000000000000000000000000600035041663c6888fa18114603c575b600080fd5b3415604657600080fd5b604f6004356061565b60405190815260200160405180910390f35b600781025b9190505600a165627a7a723058203da73c4161a1751d52899e2da724076a62a935cb5e7ed4b29f7f49560675ab8d0029", "networks": {}, "schema_version": "0.0.5", "updated_at": 1508016118593 }
7. 在bejson中转义成字符串
http://www.bejson.com
{/"contract_name/":/"test/",/"abi/":[{/"constant/":false,/"inputs/":[{/"name/":/"a/",/"type/":/"uint256/"}],/"name/":/"multiply/",/"outputs/":[{/"name/":/"d/",/"type/":/"uint256/"}],/"payable/":false,/"type/":/"function/"}],/"unlinked_binary/":/"0x60606040523415600e57600080fd5b5b60978061001d6000396000f300606060405263ffffffff7c0100000000000000000000000000000000000000000000000000000000600035041663c6888fa18114603c575b600080fd5b3415604657600080fd5b604f6004356061565b60405190815260200160405180910390f35b600781025b9190505600a165627a7a723058203da73c4161a1751d52899e2da724076a62a935cb5e7ed4b29f7f49560675ab8d0029/",/"networks/":{},/"schema_version/":/"0.0.5/",/"updated_at/":1508016118593}
7. 通过abi创建合约对象
> var contractInfo = JSON.parse('{/"contract_name/":/"test/",/"abi/":[{/"constant/":false,/"inputs/":[{/"name/":/"a/",/"type/":/"uint256/"}],/"name/":/"multiply/",/"outputs/":[{/"name/":/"d/",/"type/":/"uint256/"}],/"payable/":false,/"type/":/"function/"}],/"unlinked_binary/":/"0x60606040523415600e57600080fd5b5b60978061001d6000396000f300606060405263ffffffff7c0100000000000000000000000000000000000000000000000000000000600035041663c6888fa18114603c575b600080fd5b3415604657600080fd5b604f6004356061565b60405190815260200160405180910390f35b600781025b9190505600a165627a7a723058203da73c4161a1751d52899e2da724076a62a935cb5e7ed4b29f7f49560675ab8d0029/",/"networks/":{},/"schema_version/":/"0.0.5/",/"updated_at/":1508016118593}') > myContract = web3.eth.contract(contractInfo.abi) { abi: [{ constant: false, inputs: [{...}], name: "multiply", outputs: [{...}], payable: false, type: "function" }], eth: { accounts: ["0x2abf46d8b0d940cdeedd55872bc0648add40227d"], blockNumber: 384, coinbase: "0x2abf46d8b0d940cdeedd55872bc0648add40227d", compile: { lll: function(), serpent: function(), solidity: function() }, defaultAccount: undefined, defaultBlock: "latest", gasPrice: 0, hashrate: 0, mining: false, pendingTransactions: [], protocolVersion: "0x3f", syncing: false, call: function(), contract: function(abi), estimateGas: function(), filter: function(fil, callback), getAccounts: function(callback), getBalance: function(), getBlock: function(), getBlockNumber: function(callback), getBlockTransactionCount: function(), getBlockUncleCount: function(), getCode: function(), getCoinbase: function(callback), getCompilers: function(), getGasPrice: function(callback), getHashrate: function(callback), getMining: function(callback), getPendingTransactions: function(callback), getProtocolVersion: function(callback), getRawTransaction: function(), getRawTransactionFromBlock: function(), getStorageAt: function(), getSyncing: function(callback), getTransaction: function(), getTransactionCount: function(), getTransactionFromBlock: function(), getTransactionReceipt: function(), getUncle: function(), getWork: function(), iban: function(iban), icapNamereg: function(), isSyncing: function(callback), namereg: function(), resend: function(), sendIBANTransaction: function(), sendRawTransaction: function(), sendTransaction: function(), sign: function(), signTransaction: function(), submitTransaction: function(), submitWork: function() }, at: function(address, callback), getData: function(), new: function() }
8. 检查coinbase账号余额
> account1 = web3.eth.coinbase "0x2abf46d8b0d940cdeedd55872bc0648add40227d" > web3.eth.getBalance(account1) 0 >
如果余额大于0，继续，否则，开始挖矿。
> miner.start(); null >
挖矿过程中，切换到节点终端，你会发现一直在挖矿。
如果你觉得差不多了，可以运行下面的命令停止挖矿。
miner.stop();
9. 停止挖矿，并且查余额
> miner.start(); null > miner.stop(); true > web3.eth.getBalance(account1) 1.152e+21 >
10. 解锁coinbase账号，我们通过coinbase账号来付费部署合约
liyuechun: 换成你的密码。
> personal.unlockAccount(account1, 'liyuechun') true >
11. 预估手续费
> bytecode = "6060604052341561000f57600080fd5b5b60ab8061001e6000396000f30060606040526000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063c6888fa114603d575b600080fd5b3415604757600080fd5b605b60048080359060200190919050506071565b6040518082815260200191505060405180910390f35b60006007820290505b9190505600a165627a7a7230582067d7c851e14e862886b6f53dad6825135557fb3a4b691350c94ea5b80605f6770029" "6060604052341561000f57600080fd5b5b60ab8061001e6000396000f30060606040526000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063c6888fa114603d575b600080fd5b3415604757600080fd5b605b60048080359060200190919050506071565b6040518082815260200191505060405180910390f35b60006007820290505b9190505600a165627a7a7230582067d7c851e14e862886b6f53dad6825135557fb3a4b691350c94ea5b80605f6770029" > web3.eth.estimateGas({data: bytecode}) Error: invalid argument 0: json: cannot unmarshal hex string without 0x prefix into Go struct field CallArgs.data of type hexutil.Bytes at web3.js:3104:20 at web3.js:6191:15 at web3.js:5004:36 at <anonymous>:1:1 > bytecode = "0x6060604052341561000f57600080fd5b5b60ab8061001e6000396000f30060606040526000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063c6888fa114603d575b600080fd5b3415604757600080fd5b605b60048080359060200190919050506071565b6040518082815260200191505060405180910390f35b60006007820290505b9190505600a165627a7a7230582067d7c851e14e862886b6f53dad6825135557fb3a4b691350c94ea5b80605f6770029" "0x6060604052341561000f57600080fd5b5b60ab8061001e6000396000f30060606040526000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063c6888fa114603d575b600080fd5b3415604757600080fd5b605b60048080359060200190919050506071565b6040518082815260200191505060405180910390f35b60006007820290505b9190505600a165627a7a7230582067d7c851e14e862886b6f53dad6825135557fb3a4b691350c94ea5b80605f6770029" > web3.eth.estimateGas({data: bytecode}) 98391 >
备注：字节码前面需要添加0x。手续费大概为98391wei。
12. 部署合约，为了方便理解，设置一个回调函数
> contractInstance = myContract.new({data: bytecode gas: 1000000, from: account1}, function(e, contract){ if(!e){ if(!contract.address){ console.log("Contract transaction send: Transaction Hash: "+contract.transactionHash+" waiting to be mined..."); }else{ console.log("Contract mined! Address: "+contract.address); console.log(contract); } }else{ console.log(e) } }) Contract transaction send: Transaction Hash: 0x5e2aebbf400d71a32e807dc3f11f1053b6ee3b2a81435ed8ace2fa54eebb9f3d waiting to be mined... { abi: [{ constant: false, inputs: [{...}], name: "multiply", outputs: [{...}], payable: false, type: "function" }], address: undefined, transactionHash: "0x5e2aebbf400d71a32e807dc3f11f1053b6ee3b2a81435ed8ace2fa54eebb9f3d" } >
13. 你的合约等待挖矿，开始挖矿，等一会儿，停止
> miner.start() null > Contract mined! Address: 0xbf8b24283f2516360d3a4ba1db0df78ae74689db [object Object] > miner.stop() true >
14. 检查合约是否部署成功
> eth.getCode(contractInstance.address) "0x60606040526000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063c6888fa114603d575b600080fd5b3415604757600080fd5b605b60048080359060200190919050506071565b6040518082815260200191505060405180910390f35b60006007820290505b9190505600a165627a7a7230582067d7c851e14e862886b6f53dad6825135557fb3a4b691350c94ea5b80605f6770029" >
15. 调用合约方法
> contractInstance.multiply.call(6) 42 >
PS： 这里添加call的原因是因为multiply函数没有添加constant。
pragma solidity ^0.4.4; contract test { function multiply(uint a) returns(uint d){ return a * 7; } }
Over Game!!!!
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发文时比特币价格 ￥40600
作者：黎跃春
来源：孔壹学院
微信：liyc1215
郑重声明：本文版权归原作者所有，转载文章仅为传播更多信息之目的，如作者信息标记有误，请第一时间联系我们修改或删除，多谢。
