java TRC20

直接上代码！！！

创建地址(离线)：

	private static SecureRandom random = new SecureRandom();/**具体方法*/public static Map<String, String> createAddress() {ECKey eCkey = new ECKey(random);String privateKey = ByteArray.toHexString(eCkey.getPrivKeyBytes());byte[] addressBytes = eCkey.getAddress();String hexAddress = ByteArray.toHexString(addressBytes);Map<String, String> addressInfo = new HashMap<>(3);addressInfo.put("address", toViewAddress(hexAddress));addressInfo.put("hexAddress", hexAddress);addressInfo.put("privateKey", privateKey);return addressInfo;}/*** 转换成T开头的地址* @param hexAddress* @return*/public static String toViewAddress(String hexAddress) {return encode58Check(ByteArray.fromHexString(hexAddress));}

ps：这里的参数都是明文，如需加密，自己搞定。

查余额(节点)：

/*** 查询数量*/public BigDecimal balanceOf(String address) {String url = tronUrl +"/wallet/triggerconstantcontract";JSONObject param = new JSONObject();param.put("owner_address", TronUtils.toHexAddress(address));param.put("contract_address", TronUtils.toHexAddress(contract));param.put("function_selector", "balanceOf(address)");List<Type> inputParameters = new ArrayList<>();inputParameters.add(new Address(TronUtils.toHexAddress(address).substring(2)));param.put("parameter", FunctionEncoder.encodeConstructor(inputParameters));String result = HttpClientUtils.postJson(url, param.toJSONString());if (StringUtils.isNotEmpty(result)) {JSONObject obj = JSONObject.parseObject(result);JSONArray results = obj.getJSONArray("constant_result");if (results != null && results.size() > 0) {BigInteger amount = new BigInteger(results.getString(0), 16);return new BigDecimal(amount).divide(decimal, 6, RoundingMode.FLOOR);}}return BigDecimal.ZERO;}
/*** contract address*/private String contract = "xxx";

这里的address必须是hex(16进制)类型地址，

根据PrivateKey获取地址

/*** 根据私钥获取地址** @param privateKey* @return*/public static String getAddressByPrivateKey(String privateKey) {byte[] privateBytes = Hex.decode(privateKey);ECKey ecKey = ECKey.fromPrivate(privateBytes);byte[] from = ecKey.getAddress();return toViewAddress(Hex.toHexString(from));}

这个没什么特殊的。直接用就好了！

通过区块高度获取Transfer信息（归集用）：

/*** 获取特定区块的所有Info 信息** @return*/private String getTransactionInfoByBlockNum(BigInteger num) {String url = tronUrl + "/wallet/gettransactioninfobyblocknum";Map<String, Object> map = new HashMap<>();map.put("num", num);String param = JSON.toJSONString(map);return HttpClientUtils.postJson(url, param);}

查询最新区块：

/*** 查询最新区块** @return*/public BigInteger getNowBlock() {String url = tronUrl + "/wallet/getnowblock";String httpRequest = HttpRequest.get(url).execute().body();JSONObject jsonObject1 = JSONObject.parseObject(httpRequest);return jsonObject1.getJSONObject("block_header").getJSONObject("raw_data").getBigInteger("number");}

根据hash，返回Transaction状态

/*** 返回状态*/public boolean transactionStatus(String hash) {JSONObject parseObject = JSON.parseObject(getTransactionById(hash));if (StringUtils.isEmpty(parseObject.toJSONString())) {return false;}String contractRet = parseObject.getJSONArray("ret").getJSONObject(0).getString("contractRet");return "SUCCESS".equals(contractRet);}/*** 通过HASH获取Transaction信息** @param hash* @return*/public String getTransactionById(String hash) {String url = tronUrl + "/walletsolidity/gettransactionbyid";Map<String, Object> map = new HashMap<>();map.put("value", hash);String param = JSON.toJSONString(map);return HttpClientUtils.postJson(url, param);}

重点！！！

/*** ** @throws Throwable*/public String sendTrc20(String privateKey, String toAddress, BigDecimal amount) throws Throwable {String ownerAddress = TronUtils.getAddressByPrivateKey(privateKey);JSONObject jsonObject = new JSONObject();jsonObject.put("contract_address", TronUtils.toHexAddress(contract));jsonObject.put("function_selector", "transfer(address,uint256)");List<Type> inputParameters = new ArrayList<>();inputParameters.add(new Address(TronUtils.toHexAddress(toAddress).substring(2)));inputParameters.add(new Uint256(amount.multiply(decimal).toBigInteger()));String parameter = FunctionEncoder.encodeConstructor(inputParameters);jsonObject.put("parameter", parameter);jsonObject.put("owner_address", TronUtils.toHexAddress(ownerAddress));jsonObject.put("call_value", 0);jsonObject.put("fee_limit", 6000000L);String trans1 = HttpClientUtils.postJson(tronUrl + "/wallet/triggersmartcontract", jsonObject.toString());JSONObject result = JSONObject.parseObject(trans1);if (result.containsKey("Error")) {throw new DfzgRuntimeException(WestError.WEST_TIMEOUT);}JSONObject tx = result.getJSONObject("transaction");//填写备注tx.getJSONObject("raw_data").put("data", Hex.toHexString("备注信息".getBytes()));String txid = TronUtils.signAndBroadcast(tronUrl, privateKey, tx);if (txid != null) {return txid;}return null;}

有个需要注意的，不了解波场链机制的朋友，可以先在TronLink上转账模拟一下。波场链Transfer是需要能量和带宽的，如果需要归集的话，是需要给被归集的地址支付一些Trx的，不然不能Deal。

TRX Transfer

/*** TRX Transfer*/public String sendTrx(BigDecimal amount,String toAddress,String note) throws Throwable {String url = tronUrl + "/wallet/createtransaction";JSONObject param = new JSONObject();String privateKey = "私钥";param.put("owner_address", TronUtils.toHexAddress(TronUtils.getAddressByPrivateKey(privateKey)));param.put("to_address",TronUtils.toHexAddress(toAddress));param.put("amount",amount.multiply(decimal).toBigInteger());String result = HttpClientUtils.postJson(url, param.toJSONString());if(StringUtils.isNotEmpty(result)){JSONObject transaction = JSONObject.parseObject(result);String error = transaction.getString("Error");if(!StringUtil.isEmpty(error) && error.contains("balance is not sufficient")){throw new DfzgRuntimeException(WestError.WEST_NO_MONEY);}else {transaction.getJSONObject("raw_data").put("data", Hex.toHexString(note.getBytes()));return TronUtils.signAndBroadcast(tronUrl, privateKey, transaction);}}throw new DfzgRuntimeException(WestError.WEST_TIMEOUT);}

TRX查询余额

/*** 查询TRX额度*/public BigDecimal balanceOf(String address) {String url = tronUrl + "/wallet/getaccount";JSONObject param = new JSONObject();param.put("address", TronUtils.toHexAddress(address));String result = HttpClientUtils.postJson(url, param.toJSONString());BigInteger balance = BigInteger.ZERO;if (!StringUtils.isEmpty(result)) {JSONObject obj = JSONObject.parseObject(result);BigInteger b = obj.getBigInteger("balance");if(b != null){balance = b;}}return new BigDecimal(balance).divide(decimal,6, RoundingMode.FLOOR);}

好啦，以上这些就是我的全部内容。
希望大家用的开心~
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