以太坊ETH开发1（ Go-Ethereum搭建以太坊私链搭建）

红太狼 2020-11-17 09:20 1360阅读 1赞

## Windown ##

1.首先到[geth-windows-amd64-1.8.11-dea1ce05.exe][] 下载安装包。  
2.初始化创世区块(私链才需要这一步，公链不需要)  
　初始化创世区块时，要在geth根目录先创建一个genesis.json文件，内容如下：

{
      "config": {
            "chainId": 16,
            "homesteadBlock": 0,
            "eip155Block": 0,
            "eip158Block": 0
        },
      "alloc": {
      "0x83fd95f8e41f6afedd08dd6ae11db607a7a3c60c": {"balance": "666666666"},
      "0x0000000000000000000000000000000000000002": {"balance": "222222222"}
    	},
      "coinbase"   : "0x0000000000000000000000000000000000000000",
      "difficulty" : "0x20000",
      "extraData"  : "",
      "gasLimit"   : "0x2fefd8",
      "nonce"      : "0x0000000000000042",
      "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
      "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
      "timestamp"  : "0x00"
    }

执行初始化命令（datadir为自定义的数据目录）

geth init genesis.json --datadir=D:\ETH\data

3.执行启动命令：

geth --datadir=D:\ETH\data --rpc --rpcport 8545 --rpcaddr "0.0.0.0"  --rpcapi "personal,db,eth,net,web3" console

4.一些常用命令：

*  查看账户列表：

web3.eth.accounts

*  创建账户：

web3.personal.newAccount("123456789")

*  开启挖矿：

miner.start(1)

*  停止挖矿：

miner.stop()

*  查询余额

web3.eth.getBalance("0x0000000000000000000000000000000000")

*  解锁账户

web3.personal.unlockAccount(acc0,"123456")

*  转账(解锁之后才能转账，挖矿才能到账)

> acc0 = web3.eth.accounts\[0\]  
> “0xbe323cc4fde114269a9513a27d3e985f82b9e25d”  
> acc1 = web3.eth.accounts\[1\]  
> “0x3b0ec02b4193d14abdc9cc5b264b5e3f39624d70”  
> web3.eth.sendTransaction(\{from:acc0,to:acc1,value:web3.toWei(3,“ether”)\})

--------------------

## Linux ##

**1.下载[geth源码][geth]，下载zip版本。**  
***2.安装go语言环境：***

> rpm -ivh [http://ftp.riken.jp/Linux/fedora/epel/6/i386/epel-release-6-8.noarch.rpm][http_ftp.riken.jp_Linux_fedora_epel_6_i386_epel-release-6-8.noarch.rpm]  
> yum install golang

中间有一步需要确认，输入小写的y，然后回车即可  
**3.解压第一步的安装包**  
进入解压目录执行make编译代码:

> make

在go-ethereum-xx/build/bin目录下创建genesis.json的文本文件，内容如下：  
\{  
“config”: \{  
“chainId”: 16,  
“homesteadBlock”: 0,  
“eip155Block”: 0,  
“eip158Block”: 0  
\},  
“alloc”: \{  
“0x83fd95f8e41f6afedd08dd6ae11db607a7a3c60c”: \{“balance”: “666666666”\},  
“0x0000000000000000000000000000000000000002”: \{“balance”: “222222222”\}  
\},  
“coinbase” : “0x0000000000000000000000000000000000000000”,  
“difficulty” : “0x20000”,  
“extraData” : “”,  
“gasLimit” : “0x2fefd8”,  
“nonce” : “0x0000000000000042”,  
“mixhash” : “0x0000000000000000000000000000000000000000000000000000000000000000”,  
“parentHash” : “0x0000000000000000000000000000000000000000000000000000000000000000”,  
“timestamp” : “0x00”  
\}

**4.执行初始化命令（datadir为自定义的数据目录）：**

./geth --datadir /opt/eth/go-ethereum-1.8.11/build/bin/data init genesis.json

**5.启动节点：**

./geth --datadir=/opt/eth/go-ethereum-1.8.11/build/bin/data --rpc --rpcport 8545 --rpcaddr 0.0.0.0  --rpcapi personal,db,eth,net,web3 console

## Mac ##

Mac下的安装方式跟Linux一摸一样，只是genesis.json文件的内容要替换如下：

{
      "config": {
            "chainId": 10, 
            "homesteadBlock": 0,
            "eip155Block": 0,
            "eip158Block": 0
        },
      "alloc"      : {},
      "coinbase"   : "0x0000000000000000000000000000000000000000",
      "difficulty" : "0x20000",
      "extraData"  : "",
      "gasLimit"   : "0x2fefd8",
      "nonce"      : "0x0000000000000042",
      "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
      "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
      "timestamp"  : "0x00"
    }

## 后台启动 ##

在命令前后加上nohup … &,  
打开控制台：./geth attach /datadir/geth.ipc

[geth-windows-amd64-1.8.11-dea1ce05.exe]: https://geth.ethereum.org/downloads/
[geth]: https://github.com/ethereum/go-ethereum/releases
[http_ftp.riken.jp_Linux_fedora_epel_6_i386_epel-release-6-8.noarch.rpm]: http://ftp.riken.jp/Linux/fedora/epel/6/i386/epel-release-6-8.noarch.rpm