以太坊搭建聯盟鏈詳細教程

時間 2019-12-09

標籤以太搭建聯盟詳細教程简体版

原文原文鏈接

蟲洞社區簽約做者介紹

風逝區塊鏈雲旗天下node

安裝以太坊geth客戶端

須要先安裝go環境安裝教程git

下載以太坊源碼 github.com/ethereum/go-ethereumgithub

進入 go-ethereum 目錄web

cd go-ethereum
make geth
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而後執行make all, 順便安裝一下其餘一些命令。json

建立組織

在桌面建立兩個文件夾，a,b 兩個文件夾，表明兩個組織在兩個文件夾內分別建立兩個文件，genesis.json 文件內容api

{
    "config": {
          "chainId": 15,
          "homesteadBlock": 0,
          "eip155Block": 0,
          "eip158Block": 0
      },
      "coinbase" : "0x0000000000000000000000000000000000000000",
      "difficulty" : "0x40000",
      "extraData" : "",
      "gasLimit" : "0xffffffff",
      "nonce" : "0x0000000000000042",
      "mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
      "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
      "timestamp" : "0x00",
      "alloc": { }
}
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建立創世區塊

進入a文件夾，執行命令 $ geth --datadir ./data-init1/ init genesis.json 若是不在a 文件夾內，genesis.json 指定其相應的路徑也可. data-init1 目錄專門用來存放節點數據，執行完會發如今該目錄多出兩個目錄，一個爲geth，一個爲keystore，其中geth裏面存放數據相關信息，keystore 裏面存放加密過的的私鑰文件，執行完後打印日誌以下：bash

INFO [09-06|18:01:44.713] Maximum peer count                       ETH=25 LES=0 total=25
INFO [09-06|18:01:44.726] Allocated cache and file handles         database=/Users/qianjianeng/Desktop/a/data-init1/geth/chaindata cache=16 handles=16
INFO [09-06|18:01:44.732] Writing custom genesis block 
INFO [09-06|18:01:44.732] Persisted trie from memory database      nodes=0 size=0.00B time=187.096µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|18:01:44.733] Successfully wrote genesis state         database=chaindata                                              hash=a0e580…a5e82e
INFO [09-06|18:01:44.733] Allocated cache and file handles         database=/Users/qianjianeng/Desktop/a/data-init1/geth/lightchaindata cache=16 handles=16
INFO [09-06|18:01:44.736] Writing custom genesis block 
INFO [09-06|18:01:44.736] Persisted trie from memory database      nodes=0 size=0.00B time=2.156µs   gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
INFO [09-06|18:01:44.737] Successfully wrote genesis state         database=lightchaindata                                              hash=a0e580…a5e82e
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進入b 目錄，執行相同命令 $ geth --datadir ./data-init2/ init genesis.json微信

啓動控制檯

啓動 a 組織進入到 a 目錄 $ geth --datadir ./data-init1/ --networkid 22 --nodiscover console網絡

networkid : 1-4系統內部使用大於5便可 nodiscover：此參數確保geth不去尋找peers節點，主要是爲了控制聯盟連接入的節點. 這裏咱們須要注意的是在啓動第一個節點時並無指定port參數，所以此處採用了默認的port，也就是30303。如下爲執行時打印的日誌，並進入控制檯。經過日誌咱們也能夠發現端口爲 30303。app

如下是部分日誌

INFO [09-06|18:16:44.901] Regenerated local transaction journal    transactions=0 accounts=0
INFO [09-06|18:16:44.903] Starting P2P networking 
INFO [09-06|18:16:44.906] RLPx listener up                         self="enode://251a655c56c514f5c4f81f2d08916622c0fff5f0b906ee82be0d976b255a7987c2743195f857b85d5d948c37a172ef365ad426193b939501a420b12ae8393ddc@[::]:30303?discport=0"
INFO [09-06|18:16:44.911] IPC endpoint opened                      url=/Users/qianjianeng/Desktop/a/data-init1/geth.ipc
INFO [09-06|18:16:44.984] Mapped network port                      proto=tcp extport=30303 intport=30303 interface=NAT-PMP(192.168.31.1)
Welcome to the Geth JavaScript console!

instance: Geth/v1.8.12-stable/darwin-amd64/go1.10.3
 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
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若是出現 Welcome to the Geth JavaScript console!, 則說明網絡啓動成功

新開一個終端，進入b目錄，啓動 b 組織 geth --datadir ./data-init2/ --port 30306 --networkid 22 --nodiscover console 注意，同一臺電腦，a 組織已經佔用30303端口，因此 b 須要換一個端口

到這裏，兩個組織網絡都已經啓動成功

###geth網絡啓動參數介紹

--nodiscover 使用此選項可確保未手動添加您的人員沒法發現您的節點。不然，若是您的節點具備相同的創世紀文件和網絡ID，則可能無心中將您的節點添加到陌生人的區塊鏈中。

--maxpeers 0 若是您不但願任何其餘人鏈接到您的測試鏈，請使用maxpeers 0。或者，若是您確切知道要鏈接到節點的對等端數，則能夠調整此數字。

--rpc 這將在您的節點上啓用RPC接口。這一般在Geth中默認啓用。

--rpcapi "db,eth,net,web3" 這決定了容許經過RPC訪問哪些API。默認狀況下，Geth經過RPC啓用web3接口。重要提示：請注意，經過RPC / IPC接口提供API將使每一個人均可以訪問能夠訪問此接口的API（例如dapp）。請注意您啓用的API。默認狀況下，geth經過IPC接口啓用全部API，並經過RPC接口啓用db，eth，net和web3 API。

--rpcport "8080" 將8000更改成網絡上打開的任何端口。geth的默認值是8080。

--rpccorsdomain "chriseth.github.io/browser-sol…" 這決定了哪些URL能夠鏈接到您的節點以執行RPC客戶端任務。要很是當心，並鍵入一個特定的URL而不是通配符（*），它容許任何URL鏈接到您的RP C實例。

--datadir "/home/TestChain1" 這是您的私人鏈數據將存儲在的數據目錄中（在nubits。下選擇一個與您的公共以太坊鏈文件夾分開的位置）。

--port "30303" 這是「網絡偵聽端口」，您將使用它手動鏈接其餘對等端。

--identity "TestnetMainNode" 這將爲您的節點設置一個標識，以便在對等列表中更容易識別它。如下是這些身份如何在網絡上顯示的示例。

控制檯操做

進入以太坊 Javascript Console 後，就可使用裏面的內置對象作一些操做，這些內置對象提供的功能很豐富，好比查看區塊和交易、建立帳戶、挖礦、發送交易、部署智能合約等。

經常使用命令有：

personal.newAccount()：建立帳戶；
personal.unlockAccount()：解鎖帳戶；
eth.accounts：枚舉系統中的帳戶；
eth.getBalance()：查看帳戶餘額，返回值的單位是 Wei（Wei 是以太坊中最小貨幣面額單位，相似比特幣中的聰，1 ether = 10^18 Wei）；
eth.blockNumber：列出區塊總數；
eth.getTransaction()：獲取交易；
eth.getBlock()：獲取區塊；
miner.start()：開始挖礦；
miner.stop()：中止挖礦；
eth.coinbase：挖礦獎勵的帳戶
web3.fromWei()：Wei 換算成以太幣；
web3.toWei()：以太幣換算成 Wei；
txpool.status：交易池中的狀態；
admin.addPeer()：鏈接到其餘節點；

????????添加coinbase???????? 帳戶

在a節點上建立一個帳戶查看a節點上全部帳戶

> personal.listAccounts
[]
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當前爲空建立一個帳戶，密碼是123456

> personal.newAccount("123456")
"0x0aab8ad7444c1fc908707a063297520cb10414e8"
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再次查看，已經有了一個帳戶

> personal.listAccounts
["0x0aab8ad7444c1fc908707a063297520cb10414e8"]
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在b節點也建立一個帳戶

> personal.newAccount("123456")
"0x406133cb63002afa6cbc43a388e8eeb4c479dfaa"
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在a節點查看coinbase帳戶 coinbase 即節點挖礦獎勵所在的帳戶

> eth.coinbase
INFO [09-06|18:50:56.130] Etherbase automatically configured       address=0x0AAB8Ad7444C1FC908707A063297520Cb10414E8
"0x0aab8ad7444c1fc908707a063297520cb10414e8"
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coinbase帳戶默認就是節點裏面的第一個帳戶，如今每一個節點都只有一個帳戶，都分別爲coinbase帳戶。

修改coinbase 帳戶 在a節點再建立一個帳戶

> personal.newAccount("123456")
"0xb99db142c26690d98dc3ea1c1f10e114603c0ec0"
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把a節點的coinbase帳戶修改成第二個帳戶

> miner.setEtherbase("0xb99db142c26690d98dc3ea1c1f10e114603c0ec0")
true
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再次查看coinbase

> eth.coinbase
"0xb99db142c26690d98dc3ea1c1f10e114603c0ec0"
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更改爲功

查看節點全部的帳戶詳情

> personal.listWallets
[{
    accounts: [{
        address: "0x0aab8ad7444c1fc908707a063297520cb10414e8",
        url: "keystore:///Users/qianjianeng/Desktop/a/data-init1/keystore/UTC--2018-09-06T10-46-59.613429718Z--0aab8ad7444c1fc908707a063297520cb10414e8"
    }],
    status: "Locked",
    url: "keystore:///Users/qianjianeng/Desktop/a/data-init1/keystore/UTC--2018-09-06T10-46-59.613429718Z--0aab8ad7444c1fc908707a063297520cb10414e8"
}, {
    accounts: [{
        address: "0xb99db142c26690d98dc3ea1c1f10e114603c0ec0",
        url: "keystore:///Users/qianjianeng/Desktop/a/data-init1/keystore/UTC--2018-09-06T10-55-08.643545883Z--b99db142c26690d98dc3ea1c1f10e114603c0ec0"
    }],
    status: "Locked",
    url: "keystore:///Users/qianjianeng/Desktop/a/data-init1/keystore/UTC--2018-09-06T10-55-08.643545883Z--b99db142c26690d98dc3ea1c1f10e114603c0ec0"
}]
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聯盟鏈互通

上面分別是在兩個節點上進行的操做，下面咱們須要把兩個節點之間創建起連接。首先，咱們執行如下命令查看如下節點的peers的狀況。

> admin.peers []

發現節點並無連接上任何其餘節點，這也是咱們的nodiscover參數發揮了效果。下面就經過分享enode地址的方式來讓兩個節點創建連接。

查看a節點信息

> admin.nodeInfo.enode
"enode://251a655c56c514f5c4f81f2d08916622c0fff5f0b906ee82be0d976b255a7987c2743195f857b85d5d948c37a172ef365ad426193b939501a420b12ae8393ddc@[::]:30303?discport=0"
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經過上面命令，咱們得到了節點a的encode信息。這是geth用來鏈接到不一樣節點的enode信息，

在這些不一樣的節點它們可以分享交易和成功挖掘信息。查看b節點信息

> admin.nodeInfo.enode
"enode://a16a449053ef07d7088527b46951a6439ddcacf88d4f28dc3862141dd64f5ddba67e5c959e0544d1c758d89b81d4425138ea70a0062e0a2cf4cb940bfca2f20e@[::]:30306?discport=0"
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而後在a節點添加b， a節點執行命令

> admin.addPeer("enode://a16a449053ef07d7088527b46951a6439ddcacf88d4f28dc3862141dd64f5ddba67e5c959e0544d1c758d89b81d4425138ea70a0062e0a2cf4cb940bfca2f20e@[::]:30306?discport=0")
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在a節點添加b便可，無需在b節點添加a

返回true即爲添加成功再次執行命令admin.peers驗證

> admin.peers
[{
    caps: ["eth/63"],
    id: "ec9aa0351cbe060366410a9c7403c4d1b76de704127a8c58dd3ad5c21e199c4bc75ab567c1ffba33bb983baefd954f9f647d4e0fb1043613fb43b18dd60824be",
    name: "Geth/v1.8.12-stable/darwin-amd64/go1.10.3",
    network: {
      inbound: false,
      localAddress: "[::1]:64810",
      remoteAddress: "[::1]:30306",
      static: true,
      trusted: false
    },
    protocols: {
      eth: {
        difficulty: 262144,
        head: "0xa0e580c6769ac3dd80894b2a256164a76b796839d2eb7f799ef6b9850ea5e82e",
        version: 63
      }
    }
}]
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出現其餘節點的信息，代表節點鏈接成功

查看節點鏈接數 web3.net.peerCount

以太坊單位

單位 ----------------wei值-----------Wei wei ---------------- 1 ------------1 wei Kwei (babbage)------1e3 wei---------1,000 Mwei (lovelace)-----1e6 wei---------1,000,000 Gwei (shannon)------1e9 wei --------1,000,000,000 microether (szabo)--1e12 wei--------1,000,000,000,000 milliether (finney)-1e15 wei--------1,000,000,000,000,000 ether---------------1e18 wei--------1,000,000,000,000,000,000

最經常使用的就是wei和ether，客戶端顯示通常都是ether，轉帳交易時都須要將ether轉換成wei 1 eth = 1e18 wei

// wei轉換爲ether
> web3.fromWei('22000000000000', 'ether');
"0.000022"

// ether轉換爲wei
> web3.toWei('1','ether')
"1000000000000000000"
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查詢餘額

查詢曠工地址餘額及查詢指定地址餘額

> eth.getBalance(eth.coinbase)
> eth.getBalance("0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5")
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挖礦

> miner.start()

> miner.start()
INFO [09-06|22:46:00.911] Updated mining threads                   threads=0
INFO [09-06|22:46:00.911] Transaction pool price threshold updated price=18000000000
INFO [09-06|22:46:00.911] Starting mining operation 
null
> INFO [09-06|22:46:00.912] Commit new mining work                   number=1 txs=0 uncles=0 elapsed=1.046ms
INFO [09-06|22:46:09.002] Successfully sealed new block            number=1 hash=300302…5db299
INFO [09-06|22:46:09.006] ???? mined potential block                  number=1 hash=300302…5db299
INFO [09-06|22:46:09.007] Commit new mining work                   number=2 txs=0 uncles=0 elapsed=874.759µs
INFO [09-06|22:46:09.608] Successfully sealed new block            number=2 hash=186735…3546a7
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查看b節點控制檯能夠看出，節點a在挖礦，節點b在同步數據

中止挖礦 > miner.stop()

再次查看餘額

> eth.getBalance(eth.coinbase)
135000000000000000000
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兩個節點也能夠同時挖礦

在節點a查詢節點b地址的餘額

> eth.getBalance("0x7af1b2e3ccea944c64b5cd60ecc8dc9c998a211f")
145000000000000000000
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節點a也能查詢到節點b地址的信息和餘額，說明節點a和節點b的數據是徹底同步的

交易轉帳

如今咱們從節點a的coinbase帳戶發送一筆交易到節點b的一個新錢包。轉帳前須要先解鎖帳戶

> personal.unlockAccount(eth.coinbase)
Unlock account 0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5
Passphrase: 
true
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轉帳完成後再次查詢餘額

> eth.sendTransaction({from: eth.coinbase, to: '0x5048b919c2ef522b1313944718ffe0ce84e4e4b4', value: 1000000000000000000})
INFO [09-07|10:45:46.443] Submitted transaction                    fullhash=0x706537c56d005b42432ac3b3d4691621efbd35894c924d7dcc3961c155c67217 recipient=0x5048B919c2ef522b1313944718FfE0cE84E4E4b4
"0x706537c56d005b42432ac3b3d4691621efbd35894c924d7dcc3961c155c67217"
> eth.getBalance("0x5048b919c2ef522b1313944718ffe0ce84e4e4b4")
0
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發現餘額是0，由於尚未礦工對交易進行挖礦打包。

執行挖礦 miner.start()

再次查詢

> eth.getBalance("0x5048b919c2ef522b1313944718ffe0ce84e4e4b4")
1000000000000000000
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一個eth 已經到帳。

帶gas參數的轉帳命令

eth.sendTransaction({from: eth.coinbase, to: "0xa8d003b95ed969e68db9eb077ad333a3df10450a", gas:1000, 'gasPrice': web3.toWei(300, 'gwei'), "value": "1"})
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智能合約

寫一個簡單的智能合約

pragma solidity ^0.4.24;
contract Sample { 
    uint public value; 
    function Sample(uint v){ 
        value=v; 
    }
    function set(uint v){ 
        value=v; 
    }   
    function get() constant returns (uint){ 
        return value; 
    } 
}
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在remix.ethereum.org/上編譯獲得 ABI和合約的二進制代碼

點擊右上角的 start to complie 以後，在點擊下方的details 在bitecode裏面的object 拿到合約的二進制代碼，而後在前面補上0x. 而後在下一欄拿到ABI文件，複製獲得的ABI文件帶有空格，可用json工具(www.bejson.com/jsonviewern…)把空格去掉。

將abi代碼去除空格後

[{"constant":true,"inputs":[],"name":"value","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"v","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"v","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]
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而後在節點a輸入

>abi=[{"constant":true,"inputs":[],"name":"value","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"v","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"v","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]
[{
    constant: true,
    inputs: [],
    name: "value",
    outputs: [{
        name: "",
        type: "uint256"
    }],
    payable: false,
    stateMutability: "view",
    type: "function"
}, {
    constant: false,
    inputs: [{
        name: "v",
        type: "uint256"
    }],
    name: "set",
    outputs: [],
    payable: false,
    stateMutability: "nonpayable",
    type: "function"
}, {
    constant: true,
    inputs: [],
    name: "get",
    outputs: [{
        name: "",
        type: "uint256"
    }],
    payable: false,
    stateMutability: "view",
    type: "function"
}, {
    inputs: [{
        name: "v",
        type: "uint256"
    }],
    payable: false,
    stateMutability: "nonpayable",
    type: "constructor"
}]
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在輸入

> sample=eth.contract(abi)
{
  abi: [{
      constant: true,
      inputs: [],
      name: "value",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      constant: false,
      inputs: [{...}],
      name: "set",
      outputs: [],
      payable: false,
      stateMutability: "nonpayable",
      type: "function"
  }, {
      constant: true,
      inputs: [],
      name: "get",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      inputs: [{...}],
      payable: false,
      stateMutability: "nonpayable",
      type: "constructor"
  }],
  eth: {
    accounts: ["0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5"],
    blockNumber: 79,
    coinbase: "0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5",
    compile: {
      lll: function(),
      serpent: function(),
      solidity: function()
    },
    defaultAccount: undefined,
    defaultBlock: "latest",
    gasPrice: 18000000000,
    hashrate: 0,
    mining: false,
    pendingTransactions: [],
    protocolVersion: "0x3f",
    syncing: false,
    call: function(),
    contract: function(abi),
    estimateGas: function(),
    filter: function(options, callback, filterCreationErrorCallback),
    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()
}
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而後再輸入二進制合約代碼

> SampleHEX="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"
"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"
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把合約部署到鏈上

> personal.unlockAccount(eth.coinbase)
Unlock account 0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5
Passphrase: 
true
> thesample=sample.new(1,{from:eth.accounts[0],data:SampleHEX,gas:3000000})
INFO [09-09|18:30:33.352] Submitted contract creation              fullhash=0xd507ca17f199c014a153c08b221107e01c6365c7d10eb609bdad99535de7dd16 contract=0x7D423D420C8a63D86c1116ef71ba2F5d405a7714
{
  abi: [{
      constant: true,
      inputs: [],
      name: "value",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      constant: false,
      inputs: [{...}],
      name: "set",
      outputs: [],
      payable: false,
      stateMutability: "nonpayable",
      type: "function"
  }, {
      constant: true,
      inputs: [],
      name: "get",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      inputs: [{...}],
      payable: false,
      stateMutability: "nonpayable",
      type: "constructor"
  }],
  address: undefined,
  transactionHash: "0xd507ca17f199c014a153c08b221107e01c6365c7d10eb609bdad99535de7dd16"
}
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合約中最重要的兩個信息是合約地址和合約hash，上面的contract就是合約地址，也能夠經過下面的交易細節獲取到合約地址

挖一會礦miner.start()後中止miner.stop()，根據合約hash查看交易細節

> samplerecpt=eth.getTransactionReceipt("0xd507ca17f199c014a153c08b221107e01c6365c7d10eb609bdad99535de7dd16")
{
  blockHash: "0x54bb9756e7310deff7192a6184833e76d2b203334093aac97b773a8d11081705",
  blockNumber: 80,
  contractAddress: "0x7d423d420c8a63d86c1116ef71ba2f5d405a7714",
  cumulativeGasUsed: 134093,
  from: "0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5",
  gasUsed: 134093,
  logs: [],
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  root: "0xe88933bb56dd158847b0cf443b896be470f0ebd1d44d2e78bac023b1a3ff77d3",
  to: null,
  transactionHash: "0xd507ca17f199c014a153c08b221107e01c6365c7d10eb609bdad99535de7dd16",
  transactionIndex: 0
}
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拷貝合約地址並命名，就能夠拿到合約並執行合約的方法

> samplecontract=sample.at("0x7D423D420C8a63D86c1116ef71ba2F5d405a7714")
{
  abi: [{
      constant: true,
      inputs: [],
      name: "value",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      constant: false,
      inputs: [{...}],
      name: "set",
      outputs: [],
      payable: false,
      stateMutability: "nonpayable",
      type: "function"
  }, {
      constant: true,
      inputs: [],
      name: "get",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      inputs: [{...}],
      payable: false,
      stateMutability: "nonpayable",
      type: "constructor"
  }],
  address: "0x7D423D420C8a63D86c1116ef71ba2F5d405a7714",
  transactionHash: null,
  allEvents: function(),
  get: function(),
  set: function(),
  value: function()
}
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查看合約get方法

> samplecontract.get.call()
1
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調用合約set方法，若是帳戶已經鎖定，就先解鎖調用set方法後，還須要挖礦才能生效

> samplecontract.set.sendTransaction(5, {from:eth.accounts[0], gas:3000000})
INFO [09-09|18:41:44.003] Submitted transaction                    fullhash=0x282aa828d5df526b20775d696b0df8c5ad1caf88adb972d7bad796ba35977fa4 recipient=0x7D423D420C8a63D86c1116ef71ba2F5d405a7714
"0x282aa828d5df526b20775d696b0df8c5ad1caf88adb972d7bad796ba35977fa4"
複製代碼

而後挖礦，查看結果

> samplecontract.get.call()
5
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在節點b查看節點a中部署的合約進入節點b的終端

> samplerecpt=eth.getTransactionReceipt("0xd507ca17f199c014a153c08b221107e01c6365c7d10eb609bdad99535de7dd16")
{
  blockHash: "0x54bb9756e7310deff7192a6184833e76d2b203334093aac97b773a8d11081705",
  blockNumber: 80,
  contractAddress: "0x7d423d420c8a63d86c1116ef71ba2f5d405a7714",
  cumulativeGasUsed: 134093,
  from: "0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5",
  gasUsed: 134093,
  logs: [],
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  root: "0xe88933bb56dd158847b0cf443b896be470f0ebd1d44d2e78bac023b1a3ff77d3",
  to: null,
  transactionHash: "0xd507ca17f199c014a153c08b221107e01c6365c7d10eb609bdad99535de7dd16",
  transactionIndex: 0
}
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在節點b中經過合約地址獲取合約，並調用合約方法

> abi=[{"constant":true,"inputs":[],"name":"value","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"v","type":"uint256"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"get","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"v","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]
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> sample=eth.contract(abi)

經過合約地址獲取二進制文件

> SampleHex=eth.getCode("0x7D423D420C8a63D86c1116ef71ba2F5d405a7714")
"0x60806040526004361060525763ffffffff7c01000000000000000000000000000000000000000000000000000000006000350416633fa4f2458114605757806360fe47b114607b5780636d4ce63c146092575b600080fd5b348015606257600080fd5b50606960a4565b60408051918252519081900360200190f35b348015608657600080fd5b50609060043560aa565b005b348015609d57600080fd5b50606960af565b60005481565b600055565b600054905600a165627a7a7230582084151f58c02538f867209172d079a7bc65c934502439ff9607bcfb0c1f097f000029"
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經過合約地址獲取到合約對象

> sampleContract=sample.at("0x7D423D420C8a63D86c1116ef71ba2F5d405a7714")
{
  abi: [{
      constant: true,
      inputs: [],
      name: "value",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      constant: false,
      inputs: [{...}],
      name: "set",
      outputs: [],
      payable: false,
      stateMutability: "nonpayable",
      type: "function"
  }, {
      constant: true,
      inputs: [],
      name: "get",
      outputs: [{...}],
      payable: false,
      stateMutability: "view",
      type: "function"
  }, {
      inputs: [{...}],
      payable: false,
      stateMutability: "nonpayable",
      type: "constructor"
  }],
  address: "0x7D423D420C8a63D86c1116ef71ba2F5d405a7714",
  transactionHash: null,
  allEvents: function(),
  get: function(),
  set: function(),
  value: function()
}
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調用合約方法

> sampleContract.get.call()
5
複製代碼

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