合约开发代码-java

package com.tricky.tron.trc20.service; import com.alibaba.fastjson.JSONObject; import com.tricky.tron.trc20.feign.TronFullNodeFeign; import com.tricky.tron.trc20.feign.dt.GetTransactionSign; import com.tricky.tron.trc20.feign.dt.TriggerSmartContract; import com.tricky.tron.trc20.utils.ByteArray; import com.tricky.tron.trc20.utils.TronUtils; import org.apache.commons.lang3.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Service; import java.math.BigDecimal; import java.math.BigInteger; import java.math.RoundingMode; import java.util.HashMap; import java.util.Map; @Service public class Trc20Service { private static Logger logger = LoggerFactory.getLogger(Trc20Service.class); @Value("${tron.contract-address}") private String contractAddress;//hex格式 @Value("${tron.address}") private String address;//发币地址 hex格式 @Value("${tron.private-key}") private String privateKey;//私钥 //token的精度 就是小数点后面有多少位小数 然后1后面加多少个0就可以 private static final BigDecimal decimal = new BigDecimal("1000000"); @Autowired private TronFullNodeFeign feign; /** * 发送trc20交易 返回交易id * * @param toAddress 收币地址 * @param amount 转出数量 * @param remark 备注 * @return */ public String sendTrc20Transaction(String toAddress, String amount, String remark) { try { String hexAddress = toAddress; if (toAddress.startsWith("T")) { hexAddress = TronUtils.toHexAddress(toAddress); } if (StringUtils.isEmpty(hexAddress)) { logger.error("转账失败:收款地址为空"); return null; } if (StringUtils.isEmpty(amount)) { logger.error("转账失败:额度为空"); return null; } BigDecimal a = new BigDecimal(amount); if (a.compareTo(BigDecimal.ZERO) <= 0) { logger.error("转账失败:额度不符合规则 " + amount); return null; } if (remark == null) { remark = ""; } TriggerSmartContract.Param param = createTriggerSmartContractParam(); param.setFunction_selector("transfer(address,uint256)"); String addressParam = addZero(hexAddress, 64); String amountParam = addZero(new BigDecimal(amount).multiply(decimal).toBigInteger().toString(16), 64); param.setParameter(addressParam + amountParam); logger.info("创建交易参数:" + JSONObject.toJSONString(param)); TriggerSmartContract.Result obj = feign.triggerSmartContract(param); logger.info("创建交易结果:" + JSONObject.toJSONString(obj)); if (!obj.isSuccess()) { String params = hexAddress + "@" + amount + "@" + remark; logger.error("创建交易失败|" + params); return null; } //交易签名 GetTransactionSign.Param signParam = new GetTransactionSign.Param(); TriggerSmartContract.Transaction transaction = obj.getTransaction(); transaction.getRaw_data().put("data", ByteArray.toHexString(remark.getBytes())); signParam.setTransaction(transaction); signParam.setPrivateKey(privateKey); logger.info("签名交易参数:" + JSONObject.toJSONString(signParam)); Object dt = feign.getTransactionSign(signParam); logger.info("签名交易结果:" + JSONObject.toJSONString(dt)); //广播交易 if (dt != null) { logger.info("广播交易参数:" + JSONObject.toJSONString(dt)); JSONObject rea = feign.broadcastTransaction(dt); logger.info("广播交易结果:" + JSONObject.toJSONString(rea)); if (rea != null) { Object result = rea.get("result"); if (result instanceof Boolean) { if ((boolean) result) { return (String) rea.get("txid"); } } } } } catch (Throwable t) { logger.error(t.getMessage(), t); } return null; } /** * 创建智能合约参数 * * @return */ private TriggerSmartContract.Param createTriggerSmartContractParam() { TriggerSmartContract.Param tscParam = new TriggerSmartContract.Param(); tscParam.setOwner_address(address); tscParam.setContract_address(contractAddress); tscParam.setFee_limit(1000000L); return tscParam; } /** * 补充0到64个字节 * * @param dt * @return */ private String addZero(String dt, int length) { StringBuilder builder = new StringBuilder(); final int count = length; int zeroAmount = count - dt.length(); for (int i = 0; i < zeroAmount; i++) { builder.append("0"); } builder.append(dt); return builder.toString(); } /** * 查询额度 * * @param contract 合约地址 * @param address 查询地址 * @return */ public BigInteger balanceOf(String contract, String address) { String hexAddress = address; if (address.startsWith("T")) { hexAddress = TronUtils.toHexAddress(address); } String hexContract = contract; if (contract.startsWith("T")) { hexContract = TronUtils.toHexAddress(contract); } TriggerSmartContract.Param param = new TriggerSmartContract.Param(); param.setContract_address(hexContract); param.setOwner_address(hexAddress); param.setFunction_selector("balanceOf(address)"); String addressParam = addZero(hexAddress.substring(2), 64); param.setParameter(addressParam); TriggerSmartContract.Result result = feign.triggerSmartContract(param); if (result != null && result.isSuccess()) { String value = result.getConstantResult(0); if (value != null) { return new BigInteger(value, 16); } } return BigInteger.ZERO; } private String castHexAddress(String address) { if (address.startsWith("T")) { return TronUtils.toHexAddress(address); } return address; } /** * 代币转账 trc20 * * @param contract * @param fromAddress * @param privateKey fromAddress的私钥 * @param amount * @param toAddress * @param remark * @return */ public String sendTokenTransaction(String contract, String fromAddress, String privateKey, String amount, String toAddress, String remark) { try { String hexFromAddress = castHexAddress(fromAddress); String hexToAddress = castHexAddress(toAddress); String hexContract = castHexAddress(contract); BigInteger a = new BigInteger(amount); if (a.compareTo(BigInteger.ZERO) <= 0) { logger.error("转账失败:额度不符合规则 " + amount); return null; } if (remark == null) { remark = ""; } TriggerSmartContract.Param param = new TriggerSmartContract.Param(); param.setOwner_address(hexFromAddress); param.setContract_address(hexContract); param.setFee_limit(1000000L); param.setFunction_selector("transfer(address,uint256)"); String addressParam = addZero(hexToAddress, 64); S