区块链技术 之 以太坊(ethereum)开发环境安装

先访问github上go语言开发客户端网址：
https://github.com/ethereum/go-ethereum

安装ethereum
https://github.com/ethereum/go-ethereum/wiki/Building-Ethereum

在MAC上安装

brew tap ethereum/ethereum

brew install ethereum

dogiant@bogon:/usr/local$brew
tap ethereum/ethereum

Updating Homebrew...
==>
Tapping ethereum/ethereum

Cloning into '/usr/local/Homebrew/Library/Taps/ethereum/homebrew-ethereum'...

remote: Counting objects: 6, done.

remote: Compressing objects: 100% (6/6), done.

remote: Total 6 (delta 1), reused 1 (delta 0), pack-reused 0

Unpacking objects: 100% (6/6), done.

Checking connectivity... done.

Tapped 3 formulae (31 files, 33.9K)
dogiant@bogon:/usr/local$brew
install ethereum
==>
Installing ethereum from ethereum/ethereum
==>
Installing dependencies for ethereum/ethereum/ethereum:

go
==>
Installing ethereum/ethereum/ethereum dependency:

go
==>
Downloading
https://homebrew.bintray.com/bottles/go-1.7.4_1.el_capitan.bottle.tar.gz
######################################################################## 100.0%
==>
Pouring go-1.7.4_1.el_capitan.bottle.tar.gz
==>
Caveats

As of go 1.2, a valid GOPATH is required to use the `go get` command:

  https://golang.org/doc dc53
/code.html#GOPATH

You may wish to add the GOROOT-based install location to your PATH:

  export PATH=$PATH:/usr/local/opt/go/libexec/bin
==>
Summary

�  /usr/local/Cellar/go/1.7.4_1: 6,438 files, 250.7M
==>
Installing

ethereum/ethereum/ethereum

==>
Cloning
https://github.com/ethereum/go-ethereum.git

Cloning into '/Users/dogiant/Library/Caches/Homebrew/ethereum--git'...

remote: Counting objects: 2737, done.

remote: Compressing objects: 100% (2066/2066), done.

remote: Total 2737 (delta 963), reused 1654 (delta 553), pack-reused 0

Receiving objects: 100% (2737/2737), 14.91 MiB | 112.00 KiB/s, done.

Resolving deltas: 100% (963/963), done.

Checking connectivity... done.

Note: checking out 'ff07d54843ea7ed9997c420d216b4c007f9c80c3'.

You are in 'detached HEAD' state. You can look around, make experimental

changes and commit them, and you can discard any commits you make in this

state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may

do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

Checking out files: 100% (2487/2487), done.
==>
Checking out tag v1.5.5
==>
go env
==>
make all
==>
Caveats

To have launchd start ethereum/ethereum/ethereum now and restart at login:

  brew services start ethereum/ethereum/ethereum
==>
Summary

�  /usr/local/Cellar/ethereum/1.5.5: 9 files, 47.7M, built in 5 minutes 30 seconds

安装完毕后

geth -h

列出当前的用户
geth account list 
显示空

dogiant@bogon:~/ethereum/workspace$geth
--datadir "~/ethdev" --dev

I1228 15:16:46.907316 cmd/utils/flags.go:615] WARNING: No etherbase set and no accounts found as default

I1228 15:16:46.907493 ethdb/database.go:83] Allotted 128MB cache and 1024 file handles to /Users/dogiant/ethdev/geth/chaindata

I1228 15:16:46.911765 ethdb/database.go:176] closed db:/Users/dogiant/ethdev/geth/chaindata

I1228 15:16:46.912892 node/node.go:176] instance: Geth/v1.5.5-stable-ff07d548/darwin/go1.7.4

I1228 15:16:46.912925 ethdb/database.go:83] Allotted 128MB cache and 1024 file handles to /Users/dogiant/ethdev/geth/chaindata

I1228 15:16:46.935109 eth/backend.go:280] Successfully wrote custom genesis block: e5be92145a301820111f91866566e3e99ee344d155569e4556a39bc71238f3bc

I1228 15:16:46.935127 eth/backend.go:299] ethash used in test mode

I1228 15:16:46.935536 eth/db_upgrade.go:346] upgrading db log bloom bins

I1228 15:16:46.935580 eth/db_upgrade.go:354] upgrade completed in 48.143µs

I1228 15:16:46.935601 eth/backend.go:191] Protocol Versions: [63 62], Network Id: 1

I1228 15:16:46.935744 eth/backend.go:219] Chain config: {ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000}

I1228 15:16:46.935983 core/blockchain.go:219] Last header: #0 [e5be9214…] TD=131072

I1228 15:16:46.935998 core/blockchain.go:220] Last block: #0 [e5be9214…] TD=131072

I1228 15:16:46.936007 core/blockchain.go:221] Fast block: #0 [e5be9214…] TD=131072

I1228 15:16:46.936626 p2p/server.go:342] Starting Server

I1228 15:16:49.127910 p2p/discover/udp.go:227] Listening, enode://05399f51a43805c17f82e5016d5969d14b3092018cae87eec77ed52291d66c50c7d7bf024d953b0afcccd44c717f17aaf251b897d770054205ea268b49a3050b@10.0.37.126:58049

I1228 15:16:49.128111 whisper/whisperv2/whisper.go:176] Whisper started

I1228 15:16:49.128115 p2p/server.go:610] Listening on [::]:55739

I1228 15:16:49.129641 node/node.go:341] IPC endpoint opened: /Users/dogiant/ethdev/geth.ipc

dogiant@dubiaoqideMBP:~$geth
--dev console 2>> file_to_log_output

Welcome to the Geth JavaScript console!

instance: Geth/v1.5.5-stable-ff07d548/darwin/go1.7.4

 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

> eth.accounts

[]

> personal.newAccount('123456')
"0x556d64ecb09b5df590a2ab842b53a8041e3961b4"

> eth.accounts

["0x556d64ecb09b5df590a2ab842b53a8041e3961b4"]

> eth.accounts

["0x556d64ecb09b5df590a2ab842b53a8041e3961b4"]

> personal.newAccount('123456')
"0xb0945a303834ff763695e21ed8acbe80aefee9bb"

> eth.accounts

["0x556d64ecb09b5df590a2ab842b53a8041e3961b4",

"0xb0945a303834ff763695e21ed8acbe80aefee9bb"]

>

dogiant@dubiaoqideMBP:~$geth
--dev account list

Account #0: {556d64ecb09b5df590a2ab842b53a8041e3961b4} /var/folders/jy/q2f6pdjn6p11ytfx0xk8yp7m0000gn/T/ethereum_dev_mode/keystore/UTC--2016-12-28T07-20-52.337017793Z--556d64ecb09b5df590a2ab842b53a8041e3961b4

Account #1: {b0945a303834ff763695e21ed8acbe80aefee9bb} /var/folders/jy/q2f6pdjn6p11ytfx0xk8yp7m0000gn/T/ethereum_dev_mode/keystore/UTC--2016-12-28T07-25-51.683157537Z—b0945a303834ff763695e21ed8acbe80aefee9bb

> user1 = eth.accounts[0]
"0x556d64ecb09b5df590a2ab842b53a8041e3961b4"

> user2 = eth.accounts[1]
"0xb0945a303834ff763695e21ed8acbe80aefee9bb"

> user1
"0x556d64ecb09b5df590a2ab842b53a8041e3961b4"

> user2
"0xb0945a303834ff763695e21ed8acbe80aefee9bb"

> eth.getBalance(user1)
0

> eth.getBalance(user2)
0

> eth.blockNumber
0

> miner.start()
true

> eth.getBalance(user1)
390000000000000000000

> eth.getBalance(user2)
0

> miner.stop()
true

> eth.blockNumber
99

> eth.getBalance(user1)
495000000000000000000

> eth.getBalance(user2)
0
> eth.sendTransaction({from:user1,to:user2,value:web3.toWei(3,"ether")})
Error: account is locked
    at web3.js:3119:20
    at web3.js:6023:15
    at web3.js:4995:36
    at <anonymous>:1:1

> personal.unlockAccount("0x556d64ecb09b5df590a2ab842b53a8041e3961b4","123456")

true

> eth.sendTransaction({from:user1,to:user2,value:web3.toWei(3,"ether")})
"0x39d604a1df899f6c80ce33279abe88aec28b6d97f83e2dda5f062dd3c099fcf3"

> eth.getBalance(user2)
0

> miner.start()
true

> miner.stop()
true

> eth.getBalance(user2)
3000000000000000000

> 

问题1：一开始用get account list总是看不到新建的用户，后来考虑是开发控制台创建的用户要跟开发一致 加了 —dev后看到正常显示账号
看日志以太币转账，转账后需要挖矿确认