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以太坊搭建联盟链详细教程

發(fā)布時間：2024/4/13 编程问答 29 豆豆

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蟲洞社區(qū)簽約作者介紹

風(fēng)逝區(qū)塊鏈云旗天下

安裝以太坊geth客戶端

需要先安裝go環(huán)境安裝教程

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

進(jìn)入 go-ethereum 目錄

cd go-ethereum make geth 復(fù)制代碼

然后執(zhí)行make all, 順便安裝一下其他一些命令。

創(chuàng)建組織

在桌面創(chuàng)建兩個文件夾，a,b 兩個文件夾，代表兩個組織在兩個文件夾內(nèi)分別創(chuàng)建兩個文件，genesis.json 文件內(nèi)容

{"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": { } } 復(fù)制代碼

創(chuàng)建創(chuàng)世區(qū)塊

進(jìn)入a文件夾，執(zhí)行命令 $ geth --datadir ./data-init1/ init genesis.json 如果不在a 文件夾內(nèi)，genesis.json 指定其相應(yīng)的路徑也可. data-init1 目錄專門用來存放節(jié)點數(shù)據(jù)，執(zhí)行完會發(fā)現(xiàn)在該目錄多出兩個目錄，一個為geth，一個為keystore，其中g(shù)eth里面存放數(shù)據(jù)相關(guān)信息，keystore 里面存放加密過的的私鑰文件，執(zhí)行完后打印日志如下：

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 復(fù)制代碼

進(jìn)入b 目錄，執(zhí)行相同命令 $ geth --datadir ./data-init2/ init genesis.json

啟動控制臺

啟動 a 組織進(jìn)入到 a 目錄 $ geth --datadir ./data-init1/ --networkid 22 --nodiscover console

networkid : 1-4系統(tǒng)內(nèi)部使用大于5即可 nodiscover：此參數(shù)確保geth不去尋找peers節(jié)點，主要是為了控制聯(lián)盟鏈接入的節(jié)點. 這里我們需要注意的是在啟動第一個節(jié)點時并沒有指定port參數(shù)，因此此處采用了默認(rèn)的port，也就是30303。以下為執(zhí)行時打印的日志，并進(jìn)入控制臺。通過日志我們也可以發(fā)現(xiàn)端口為 30303。

以下是部分日志

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/go1.10.3modules: 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 復(fù)制代碼

如果出現(xiàn) Welcome to the Geth JavaScript console!, 則說明網(wǎng)絡(luò)啟動成功

新開一個終端，進(jìn)入b目錄，啟動 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(jīng)占用30303端口，所以 b 需要換一個端口

到這里，兩個組織網(wǎng)絡(luò)都已經(jīng)啟動成功

###geth網(wǎng)絡(luò)啟動參數(shù)介紹

--nodiscover 使用此選項可確保未手動添加您的人員無法發(fā)現(xiàn)您的節(jié)點。否則，如果您的節(jié)點具有相同的創(chuàng)世紀(jì)文件和網(wǎng)絡(luò)ID，則可能無意中將您的節(jié)點添加到陌生人的區(qū)塊鏈中。

--maxpeers 0 如果您不希望任何其他人連接到您的測試鏈，請使用maxpeers 0。或者，如果您確切知道要連接到節(jié)點的對等端數(shù)，則可以調(diào)整此數(shù)字。

--rpc 這將在您的節(jié)點上啟用RPC接口。這通常在Geth中默認(rèn)啟用。

--rpcapi "db,eth,net,web3" 這決定了允許通過RPC訪問哪些API。默認(rèn)情況下，Geth通過RPC啟用web3接口。重要提示：請注意，通過RPC / IPC接口提供API將使每個人都可以訪問可以訪問此接口的API（例如dapp）。請注意您啟用的API。默認(rèn)情況下，geth通過IPC接口啟用所有API，并通過RPC接口啟用db，eth，net和web3 API。

--rpcport "8080" 將8000更改為網(wǎng)絡(luò)上打開的任何端口。geth的默認(rèn)值是8080。

--rpccorsdomain "chriseth.github.io/browser-sol…" 這決定了哪些URL可以連接到您的節(jié)點以執(zhí)行RPC客戶端任務(wù)。要非常小心，并鍵入一個特定的URL而不是通配符（*），它允許任何URL連接到您的RP C實例。

--datadir "/home/TestChain1" 這是您的私人鏈數(shù)據(jù)將存儲在的數(shù)據(jù)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(wǎng)絡(luò)偵聽端口”，您將使用它手動連接其他對等端。

--identity "TestnetMainNode" 這將為您的節(jié)點設(shè)置一個標(biāo)識，以便在對等列表中更容易識別它。以下是這些身份如何在網(wǎng)絡(luò)上顯示的示例。

控制臺操作

進(jìn)入以太坊 Javascript Console 后，就可以使用里面的內(nèi)置對象做一些操作，這些內(nèi)置對象提供的功能很豐富，比如查看區(qū)塊和交易、創(chuàng)建賬戶、挖礦、發(fā)送交易、部署智能合約等。

常用命令有：

personal.newAccount()：創(chuàng)建賬戶；
personal.unlockAccount()：解鎖賬戶；
eth.accounts：枚舉系統(tǒng)中的賬戶；
eth.getBalance()：查看賬戶余額，返回值的單位是 Wei（Wei 是以太坊中最小貨幣面額單位，類似比特幣中的聰，1 ether = 10^18 Wei）；
eth.blockNumber：列出區(qū)塊總數(shù)；
eth.getTransaction()：獲取交易；
eth.getBlock()：獲取區(qū)塊；
miner.start()：開始挖礦；
miner.stop()：停止挖礦；
eth.coinbase：挖礦獎勵的賬戶
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(tài)；
admin.addPeer()：連接到其他節(jié)點；

????????添加coinbase???????? 賬戶

在a節(jié)點上創(chuàng)建一個賬戶查看a節(jié)點上所有賬戶

> personal.listAccounts [] 復(fù)制代碼

當(dāng)前為空創(chuàng)建一個賬戶，密碼是123456

> personal.newAccount("123456") "0x0aab8ad7444c1fc908707a063297520cb10414e8" 復(fù)制代碼

再次查看，已經(jīng)有了一個賬戶

> personal.listAccounts ["0x0aab8ad7444c1fc908707a063297520cb10414e8"] 復(fù)制代碼

在b節(jié)點也創(chuàng)建一個賬戶

> personal.newAccount("123456") "0x406133cb63002afa6cbc43a388e8eeb4c479dfaa" 復(fù)制代碼

在a節(jié)點查看coinbase賬戶 coinbase 即節(jié)點挖礦獎勵所在的賬戶

> eth.coinbase INFO [09-06|18:50:56.130] Etherbase automatically configured address=0x0AAB8Ad7444C1FC908707A063297520Cb10414E8 "0x0aab8ad7444c1fc908707a063297520cb10414e8" 復(fù)制代碼

coinbase賬戶默認(rèn)就是節(jié)點里面的第一個賬戶，現(xiàn)在每個節(jié)點都只有一個賬戶，都分別為coinbase賬戶。

修改coinbase 賬戶 在a節(jié)點再創(chuàng)建一個賬戶

> personal.newAccount("123456") "0xb99db142c26690d98dc3ea1c1f10e114603c0ec0" 復(fù)制代碼

把a(bǔ)節(jié)點的coinbase賬戶修改為第二個賬戶

> miner.setEtherbase("0xb99db142c26690d98dc3ea1c1f10e114603c0ec0") true 復(fù)制代碼

再次查看coinbase

> eth.coinbase "0xb99db142c26690d98dc3ea1c1f10e114603c0ec0" 復(fù)制代碼

更改成功

查看節(jié)點所有的賬戶詳情

> 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" }] 復(fù)制代碼

聯(lián)盟鏈互通

上面分別是在兩個節(jié)點上進(jìn)行的操作，下面我們需要把兩個節(jié)點之間建立起鏈接。首先，我們執(zhí) 行以下命令查看以下節(jié)點的peers的情況。

> admin.peers []

發(fā)現(xiàn)節(jié)點并沒有鏈接上任何其他節(jié)點，這也是我們的nodiscover參數(shù)發(fā)揮了效果。下面就通過分享enode地址的方式來讓兩個節(jié)點建立鏈接。

查看a節(jié)點信息

> admin.nodeInfo.enode "enode://251a655c56c514f5c4f81f2d08916622c0fff5f0b906ee82be0d976b255a7987c2743195f857b85d5d948c37a172ef365ad426193b939501a420b12ae8393ddc@[::]:30303?discport=0" 復(fù)制代碼

通過上面命令，我們獲得了節(jié)點a的encode信息。這是geth用來連接到不同節(jié)點的enode信息，

在這些不同的節(jié)點它們能夠分享交易和成功挖掘信息。查看b節(jié)點信息

> admin.nodeInfo.enode "enode://a16a449053ef07d7088527b46951a6439ddcacf88d4f28dc3862141dd64f5ddba67e5c959e0544d1c758d89b81d4425138ea70a0062e0a2cf4cb940bfca2f20e@[::]:30306?discport=0" 復(fù)制代碼

然后在a節(jié)點添加b， a節(jié)點執(zhí)行命令

> admin.addPeer("enode://a16a449053ef07d7088527b46951a6439ddcacf88d4f28dc3862141dd64f5ddba67e5c959e0544d1c758d89b81d4425138ea70a0062e0a2cf4cb940bfca2f20e@[::]:30306?discport=0") 復(fù)制代碼

在a節(jié)點添加b即可，無需在b節(jié)點添加a

返回true即為添加成功再次執(zhí)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}} }] 復(fù)制代碼

出現(xiàn)其他節(jié)點的信息，表明節(jié)點連接成功

查看節(jié)點連接數(shù) 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

最常用的就是wei和ether，客戶端顯示一般都是ether，轉(zhuǎn)賬交易時都需要將ether轉(zhuǎn)換成wei 1 eth = 1e18 wei

// wei轉(zhuǎn)換為ether > web3.fromWei('22000000000000', 'ether'); "0.000022"// ether轉(zhuǎn)換為wei > web3.toWei('1','ether') "1000000000000000000" 復(fù)制代碼

查詢余額

查詢曠工地址余額及查詢指定地址余額

> eth.getBalance(eth.coinbase) > eth.getBalance("0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5") 復(fù)制代碼

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 復(fù)制代碼

查看b節(jié)點控制臺可以看出，節(jié)點a在挖礦，節(jié)點b在同步數(shù)據(jù)

停止挖礦 > miner.stop()

再次查看余額

> eth.getBalance(eth.coinbase) 135000000000000000000 復(fù)制代碼

兩個節(jié)點也可以同時挖礦

在節(jié)點a查詢節(jié)點b地址的余額

> eth.getBalance("0x7af1b2e3ccea944c64b5cd60ecc8dc9c998a211f") 145000000000000000000 復(fù)制代碼

節(jié)點a也能查詢到節(jié)點b地址的信息和余額，說明節(jié)點a和節(jié)點b的數(shù)據(jù)是完全同步的

交易轉(zhuǎn)賬

現(xiàn)在我們從節(jié)點a的coinbase賬戶發(fā)送一筆交易到節(jié)點b的一個新錢包。轉(zhuǎn)賬前需要先解鎖賬戶

> personal.unlockAccount(eth.coinbase) Unlock account 0x635b3b3a6b3b9840edb9531ec91193bbf15f12f5 Passphrase: true 復(fù)制代碼

轉(zhuǎn)賬完成后再次查詢余額

> 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 復(fù)制代碼

發(fā)現(xiàn)余額是0，因為還沒有礦工對交易進(jìn)行挖礦打包。

執(zhí)行挖礦 miner.start()

再次查詢

> eth.getBalance("0x5048b919c2ef522b1313944718ffe0ce84e4e4b4") 1000000000000000000 復(fù)制代碼

一個eth 已經(jīng)到賬。

帶gas參數(shù)的轉(zhuǎn)賬命令

eth.sendTransaction({from: eth.coinbase, to: "0xa8d003b95ed969e68db9eb077ad333a3df10450a", gas:1000, 'gasPrice': web3.toWei(300, 'gwei'), "value": "1"}) 復(fù)制代碼

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; } } 復(fù)制代碼

在remix.ethereum.org/上編譯得到 ABI和合約的二進(jìn)制代碼

點擊右上角的 start to complie 之后，在點擊下方的details 在bitecode里面的object 拿到合約的二進(jìn)制代碼，然后在前面補(bǔ)上0x. 然后在下一欄拿到ABI文件，復(fù)制得到的ABI文件帶有空格，可用json工具(www.bejson.com/jsonviewern…)把空格去掉。

將abi代碼去除空格后

[{"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"}] 復(fù)制代碼

然后在節(jié)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" }] 復(fù)制代碼

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() } 復(fù)制代碼

然后再輸入二進(jìn)制合約代碼

> SampleHEX="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" "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" 復(fù)制代碼

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" } 復(fù)制代碼

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，也可以通過下面的交易細(xì)節(jié)獲取到合約地址

挖一會礦miner.start()后停止miner.stop()，根據(jù)合約hash查看交易細(xì)節(jié)

> 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 } 復(fù)制代碼

拷貝合約地址并命名，就可以拿到合約并執(zhí)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() } 復(fù)制代碼

查看合約get方法

> samplecontract.get.call() 1 復(fù)制代碼

調(diào)用合約set方法，如果賬戶已經(jīng)鎖定，就先解鎖調(diào)用set方法后，還需要挖礦才能生效

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

然后挖礦，查看結(jié)果

> samplecontract.get.call() 5 復(fù)制代碼

在節(jié)點b查看節(jié)點a中部署的合約進(jìn)入節(jié)點b的終端

在節(jié)點b中通過合約地址獲取合約，并調(diào)用合約方法

> sample=eth.contract(abi)

通過合約地址獲取二進(jìn)制文件

> SampleHex=eth.getCode("0x7D423D420C8a63D86c1116ef71ba2F5d405a7714") "0x60806040526004361060525763ffffffff7c01000000000000000000000000000000000000000000000000000000006000350416633fa4f2458114605757806360fe47b114607b5780636d4ce63c146092575b600080fd5b348015606257600080fd5b50606960a4565b60408051918252519081900360200190f35b348015608657600080fd5b50609060043560aa565b005b348015609d57600080fd5b50606960af565b60005481565b600055565b600054905600a165627a7a7230582084151f58c02538f867209172d079a7bc65c934502439ff9607bcfb0c1f097f000029" 復(fù)制代碼

通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() } 復(fù)制代碼

調(diào)用合約方法

> sampleContract.get.call() 5 復(fù)制代碼

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