. 安装
. 项目目录
. 创建私链
. 智能合约
-
下载go-eth项目,使用源码安装,参考：
https://ethereum.github.io/go-ethereum/install/#build-it-from-source-code -
安装solc,使用binary package安装,参考：
http://solidity.readthedocs.io/en/latest/installing-solidity.html -
安装solidity框架turffle:
npm install -g truffle -
保证node版本(安装truffle后,node低版本不能保证truffle compile成功)
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -sudo apt-get install nodejs. build 以太放私有链目录 . docs 相关说明文档目录 . hello 智能合约项目目录
新建build/seed0/genesis.json
建立2个初始账号
{
"config": {
"chainId": 151,
"homesteadBlock": 0,
"eip155Block": 0,
"eip158Block": 0
},
"alloc": {
"3ae88fe370c39384fc16da2c9e768cf5d2495b48": {
"balance": "10000000000"
},
"81063419f13cab5ac090cd8329d8fff9feead4a0": {
"balance": "10000000000"
}
},
"nonce": "0x0000000000000042",
"difficulty": "0x400000",
"mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"coinbase": "0x0000000000000000000000000000000000000000",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
"gasLimit": "0x4c4b40"
}初始化：
vagrant@vagrant:~/gohome/src/eth-demo/build/seed0$ mkdir data
vagrant@vagrant:~/gohome/src/eth-demo/build/seed0$ ll
总用量 16
drwxrwxr-x 3 vagrant vagrant 4096 7月 28 15:00 ./
drwxrwxr-x 3 vagrant vagrant 4096 7月 28 11:35 ../
drwxrwxr-x 2 vagrant vagrant 4096 7月 28 15:00 data/
-rw-rw-r-- 1 vagrant vagrant 990 7月 28 14:35 genesis.json
vagrant@vagrant:~/gohome/src/eth-demo/build/seed0$ geth --datadir data init genesis.json
WARN [07-28|15:00:39] No etherbase set and no accounts found as default
INFO [07-28|15:00:39] Allocated cache and file handles database=/home/vagrant/gohome/src/eth-demo/build/seed0/data/geth/chaindata cache=16 handles=16
INFO [07-28|15:00:39] Writing custom genesis block
INFO [07-28|15:00:39] Successfully wrote genesis state database=chaindata hash=c5f7a6…dd680c
INFO [07-28|15:00:39] Allocated cache and file handles database=/home/vagrant/gohome/src/eth-demo/build/seed0/data/geth/lightchaindata cache=16 handles=16
INFO [07-28|15:00:39] Writing custom genesis block
INFO [07-28|15:00:39] Successfully wrote genesis state database=lightchaindata hash=c5f7a6…dd680c启动节点:
vagrant@vagrant:~/gohome/src/eth-demo/build/seed0$ geth --datadir data --networkid 150 --rpc --rpccorsdomain "*" --nodiscover console
WARN [07-28|15:05:30] No etherbase set and no accounts found as default
INFO [07-28|15:05:30] Starting peer-to-peer node instance=Geth/v1.7.0-unstable/linux-amd64/go1.8.1
INFO [07-28|15:05:30] Allocated cache and file handles database=/home/vagrant/gohome/src/eth-demo/build/seed0/data/geth/chaindata cache=128 handles=1024
WARN [07-28|15:05:30] Upgrading database to use lookup entries
INFO [07-28|15:05:30] Database deduplication successful deduped=0
INFO [07-28|15:05:30] Initialised chain configuration config="{ChainID: 1 Homestead: 0 DAO: <nil> DAOSupport: false EIP150: <nil> EIP155: 0 EIP158: 0 Metropolis: <nil> Engine: unknown}"
INFO [07-28|15:05:30] Disk storage enabled for ethash caches dir=/home/vagrant/gohome/src/eth-demo/build/seed0/data/geth/ethash count=3
INFO [07-28|15:05:30] Disk storage enabled for ethash DAGs dir=/home/vagrant/.ethash count=2
WARN [07-28|15:05:30] Upgrading db log bloom bins
INFO [07-28|15:05:30] Bloom-bin upgrade completed elapsed=60.801µs
INFO [07-28|15:05:30] Initialising Ethereum protocol versions="[63 62]" network=1
INFO [07-28|15:05:30] Loaded most recent local header number=0 hash=c5f7a6…dd680c td=131072
INFO [07-28|15:05:30] Loaded most recent local full block number=0 hash=c5f7a6…dd680c td=131072
INFO [07-28|15:05:30] Loaded most recent local fast block number=0 hash=c5f7a6…dd680c td=131072
INFO [07-28|15:05:30] Starting P2P networking
INFO [07-28|15:05:30] HTTP endpoint opened: http://127.0.0.1:8545
INFO [07-28|15:05:30] RLPx listener up self="enode://46144da688e40dd7a1209147c1085eb2f08ef4efa03553d51676bb857e2e81539292b2df9b426760416b05c81943e59d4397dac72f57e989905de4008d8bd27b@[::]:30303?discport=0"
INFO [07-28|15:05:30] IPC endpoint opened: /home/vagrant/gohome/src/eth-demo/build/seed0/data/geth.ipc
Welcome to the Geth JavaScript console!
instance: Geth/v1.7.0-unstable/linux-amd64/go1.8.1
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
上述命令中：
datadir 指定数据目录
rpc 启动rpc通讯,可以进行调试和部署智能合约
控制台运行相关命令,这里以挖矿为例子：
> personal.newAccount("1")
INFO [07-28|15:37:31] New wallet appeared url=keystore:///home/vagrant/gohome… status=Locked
"0x888aa85221873f7f180c8fd9d88d4f462a40da6c"
> miner.start(1)
INFO [07-28|15:37:40] Updated mining threads threads=1
INFO [07-28|15:37:40] Transaction pool price threshold updated price=18000000000
null
INFO [07-28|15:37:40] Starting mining operation
> INFO [07-28|15:37:40] Commit new mining work number=1 txs=0 uncles=0 elapsed=136.516µs
INFO [07-28|15:37:46] Successfully sealed new block number=1 hash=a3d5e8…c7bcf6
INFO [07-28|15:37:57] Commit new mining work number=8 txs=0 uncles=0 elapsed=167.951µs
> mINFO [07-28|15:37:58] Successfully sealed new block number=8 hash=d8e9f4…092e4b
INFO [07-28|15:37:58] 🔗 block reached canonical chain number=3 hash=89bf98…db5baa
INFO [07-28|15:37:58] 🔨 mined potential block number=8 hash=d8e9f4…092e4b
INFO [07-28|15:37:58] Commit new mining work number=9 txs=0 uncles=0 elapsed=225.274µs
> minINFO [07-28|15:37:58] Successfully sealed new block number=9 hash=b85147…eb18d2
INFO [07-28|15:37:58] 🔗 block reached canonical chain number=4 hash=0177f9…b36645
INFO [07-28|15:37:58] 🔨 mined potential block number=9 hash=b85147…eb18d2
INFO [07-28|15:37:58] Commit new mining work number=10 txs=0 uncles=0 elapsed=167.023µs
> minerINFO [07-28|15:37:59] Successfully sealed new block number=10 hash=fa34a4…626d07
INFO [07-28|15:37:59] 🔗 block reached canonical chain number=5 hash=97dbde…e6621d
INFO [07-28|15:37:59] 🔨 mined potential block number=10 hash=fa34a4…626d07
INFO [07-28|15:37:59] Commit new mining work number=11 txs=0 uncles=0 elapsed=140.509µs
> miner.stINFO [07-28|15:37:59] Successfully sealed new block number=11 hash=7a06de…5305d9
INFO [07-28|15:37:59] 🔗 block reached canonical chain number=6 hash=596c60…e2c6b4
INFO [07-28|15:37:59] 🔨 mined potential block number=11 hash=7a06de…5305d9
INFO [07-28|15:37:59] Mining too far in the future wait=2s
> miner.stop()
INFO [07-28|15:38:01] Commit new mining work number=12 txs=0 uncles=0 elapsed=2.000s
true
创建并解锁账户:
创建可用账户的逻辑是：使用密码创建账户,然后解锁账户,通过personal.listAccounts可以查看
> personal.newAccount("1")
"0x549ad57f6d5370fdefa0da4cb92fda4ea391a139"
INFO [07-28|15:54:09] New wallet appeared url=keystore:///home/vagrant/gohome… status=Locked
> personal.unlockAccount(eth.accounts[0])
Unlock account 0x549ad57f6d5370fdefa0da4cb92fda4ea391a139
Passphrase:
true
> personal.listAccounts
["0x549ad57f6d5370fdefa0da4cb92fda4ea391a139"]这里,解锁也可以使用
personal.unlockAccount("0x549ad57f6d5370fdefa0da4cb92fda4ea391a139", "1", 100). 安装好solc&truffle后,在constracts下创建项目hello,使用命令行： truffle init
后会在hello下生成build,constracts,migrations,node_modules,test目录&truffle.js中,
contracts中migration.sol关系到合约部署不能删除,该目录下其他的都可以删除,
truffle compile 编译项目
. truffle compile后可以使用truffle deploy部署合约到私链