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以太坊(Ethereum)私链建立 、合约编译、部署完全教程(1)

以太坊(Ethereum)私链建立 、合约编译、部署完全教程(1)

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
host=github.com
" | 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。

以太坊(Ethereum)私链建立 、合约编译、部署完全教程(1)

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 > 

以太坊(Ethereum)私链建立 、合约编译、部署完全教程(1)以太坊(Ethereum)私链建立 、合约编译、部署完全教程(1)

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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