1. 掌握区块链基本原理
  2. 掌握私有链的搭建

需要提前安装好Ubuntu 虚拟机
安装geth
sudo apt-get install software-properties-common
sudo add-apt-repository -y ppa:ethereum/ethereum
sudo apt-get update
sudo apt-get install Ethereum

输入geth -v，检测安装是否成功

创建创始域文件

cd Desktopcd ethereumvi genesis.json{"config": {"chainId": 666,"homesteadBlock": 0,"eip150Block": 0,"eip150Hash": "0x0000000000000000000000000000000000000000000000000000000000000000","eip155Block": 0,"eip158Block": 0,"byzantiumBlock": 0,"constantinopleBlock": 0,"petersburgBlock": 0,"istanbulBlock": 0,"ethash": {}},"nonce": "0x0","timestamp": "0x5ddf8f3e","extraData": "0x0000000000000000000000000000000000000000000000000000000000000000","gasLimit": "0x47b760","difficulty": "0x00002","mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000","coinbase": "0x0000000000000000000000000000000000000000","alloc": { },"number": "0x0","gasUsed": "0x0","parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000"}

退出并保存

创建创世区块
geth –data init genesis.json

建立geth
启动私有链
输入
"enode://30f569143293d927d82269d0371f85c076d7bef659fbb955266b800ceb23ff8581141597b916d3fee3bc726b7ea7f4756933b2a0b7cd2e0656d0a3d706c15308@127.0.0.1:3000"geth --port 3001 --networkid 666 --datadir="data" --maxpeers=3 --http --http.port 8546 --http.addr 127.0.0.1 --http.corsdomain "*" --
创建账户

personal.newAccount("123")

弹出账户地址
此步骤弹出的账户地址需要自行记录

链接目标节点

输入admin.nodeInfo.enode

得到

"enode://30f569143293d927d82269d0371f85c076d7bef659fbb955266b800ceb23ff8581141597b916d3fee3bc726b7ea7f4756933b2a0b7cd2e0656d0a3d706c15308@127.0.0.1:3000"

打开新的终端输入apa，找到自己的IP地址,输入admin.addPeer

（"enode://30f569143293d927d82269d0371f85c076d7bef659fbb955266b800ceb23ff8581141597b916d3fee3bc726b7ea7f4756933b2a0b7cd2e0656d0a3d706c15308@IP地址:3000"）

以下是开始以后可以进行的操作

开始挖矿miner.star(1);终止挖矿miner.stop()查询余额eth.getBalance(eth.accounts[0])解锁钱包personal.unlockAccount(eth.accounts[0])交易amount=web3.toWeb(1,'ether')eth.sendTransaction({from:eth.accounts[0],to:eth.accounts[1],value:amount})

开始

运行成功。