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這篇文章主要介紹“web3j批量轉(zhuǎn)賬怎么實(shí)現(xiàn)”,在日常操作中,相信很多人在web3j批量轉(zhuǎn)賬怎么實(shí)現(xiàn)問題上存在疑惑,小編查閱了各式資料,整理出簡(jiǎn)單好用的操作方法,希望對(duì)大家解答”web3j批量轉(zhuǎn)賬怎么實(shí)現(xiàn)”的疑惑有所幫助!接下來(lái),請(qǐng)跟著小編一起來(lái)學(xué)習(xí)吧!
使用web3j來(lái)連接geth并轉(zhuǎn)賬,基本轉(zhuǎn)賬函數(shù)可以這樣寫:
//以太坊轉(zhuǎn)賬 //from:轉(zhuǎn)出方賬戶 //password:轉(zhuǎn)出方密碼 //addrTo:收款賬戶 //value:轉(zhuǎn)賬額 public String transferEth(String from,String password,String to,BigInteger value) throws Exception { EthGetTransactionCount ethGetTransactionCount = ethClient.ethGetTransactionCount( from, DefaultBlockParameterName.LATEST).sendAsync().get(); BigInteger nonce = ethGetTransactionCount.getTransactionCount(); PersonalUnlockAccount personalUnlockAccount = ethClient.personalUnlockAccount(from,password).send(); if (personalUnlockAccount.accountUnlocked()) { BigInteger gasPrice = Contract.GAS_PRICE; BigInteger gasLimit = Contract.GAS_LIMIT.divide(new BigInteger("2")); synchronized(TestLocal.class) { Transaction transaction = Transaction.createEtherTransaction(from,nonce,gasPrice,gasLimit,to,value); EthSendTransaction transactionResponse = ethClient.ethSendTransaction(transaction).sendAsync().get();; if(transactionResponse.hasError()){ String message=transactionResponse.getError().getMessage(); System.out.println("transaction failed,info:"+message); Utils.writeFile("F:/testErr.txt","transaction failed,info:"+message); return message; }else{ String hash=transactionResponse.getTransactionHash(); System.out.println("transaction from "+from+" to "+to+" amount:"+value); SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); //writeFile("transaction from "+from+" to "+to+" amount:"+value+" time:"+df.format(new Date())); return hash; } } } return null; }
上面函數(shù)中,當(dāng)轉(zhuǎn)賬失敗,會(huì)將失敗結(jié)果寫入F:/testErr.txt中。
批量轉(zhuǎn)賬就是在for循環(huán)中連續(xù)調(diào)用上面這個(gè)函數(shù)進(jìn)行轉(zhuǎn)賬,現(xiàn)在設(shè)置從addr0向addr1連續(xù)轉(zhuǎn)賬10次:
for(int i=0;i<10;i++) { transferEth(addr0,"123",addr1,Convert.toWei("1", Convert.Unit.ETHER).toBigInteger()); }
先查詢addr1的余額,有102.9110385個(gè)ether:
> web3.formwei(eth.getBalance(eth.accounts[1])) 102.9110385
運(yùn)行批量轉(zhuǎn)賬函數(shù),會(huì)發(fā)現(xiàn)控制臺(tái)報(bào)錯(cuò):
查詢余額,發(fā)現(xiàn)只轉(zhuǎn)成功了一筆:
> web3.formwei(eth.getBalance(eth.accounts[1])) 103.9110385
查看打印的錯(cuò)誤信息textErr.txt:
可見失敗了9筆交易,只有第一筆交易成功了。失敗的信息是因?yàn)橛薪灰字貜?fù)。初步判斷是nonce設(shè)置出問題了。對(duì)于單筆轉(zhuǎn)賬,nonce可以從區(qū)塊鏈查詢到,在for循環(huán)里,需要自己去遞增nonce。
修改transferEth函數(shù)如下:
public String transferEthWith(String from,String password,String to,BigInteger value) throws Exception { EthGetTransactionCount ethGetTransactionCount = ethClient.ethGetTransactionCount( from, DefaultBlockParameterName.LATEST).sendAsync().get(); BigInteger nonce = ethGetTransactionCount.getTransactionCount(); if(gNoce == null) gNoce = nonce; PersonalUnlockAccount personalUnlockAccount = ethClient.personalUnlockAccount(from,password).send(); if (personalUnlockAccount.accountUnlocked()) { BigInteger gasPrice = Contract.GAS_PRICE; BigInteger gasLimit = Contract.GAS_LIMIT.divide(new BigInteger("2")); synchronized(TestLocal.class) { Transaction transaction = Transaction.createEtherTransaction(from,gNoce,gasPrice,gasLimit,to,value); gNoce = gNoce.add(new BigInteger("1")); EthSendTransaction transactionResponse = ethClient.ethSendTransaction(transaction).sendAsync().get();; if(transactionResponse.hasError()){ String message=transactionResponse.getError().getMessage(); System.out.println("transaction failed,info:"+message); Utils.writeFile("F:/testErr.txt","transaction failed,info:"+message); return message; }else{ String hash=transactionResponse.getTransactionHash(); System.out.println("transaction from "+from+" to "+to+" amount:"+value); SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); //writeFile("transaction from "+from+" to "+to+" amount:"+value+" time:"+df.format(new Date())); return hash; } } } return null; }
查看geth的log信息,可以看到提交了多筆交易:
查詢addr1的賬戶余額,從103變成113了,轉(zhuǎn)賬成功:
> web3.formwei(eth.getBalance(eth.accounts[1])) 113.9110385
到此,關(guān)于“web3j批量轉(zhuǎn)賬怎么實(shí)現(xiàn)”的學(xué)習(xí)就結(jié)束了,希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí),快去試試吧!若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí),請(qǐng)繼續(xù)關(guān)注億速云網(wǎng)站,小編會(huì)繼續(xù)努力為大家?guī)?lái)更多實(shí)用的文章!
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