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 | 35 +++++++++++++++++++++++++++++++++--
1 files changed, 33 insertions(+), 2 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 45f7e92..81b73b9 100644
--- a/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
+++ b/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
@@ -91,8 +91,39 @@
}
@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 = 6;
+ int decimal = decimals();
BigInteger balanceValue = balanceOfUnDecimal(fromAddress);
double res = new BigDecimal(balanceValue).divide(BigDecimal.valueOf(Math.pow(10, decimal)), 8, RoundingMode.HALF_DOWN).doubleValue();
@@ -168,7 +199,7 @@
public String tokenTransferFrom(String privateKey, String fromAddress, String toAddress, String amount) throws ExecutionException, InterruptedException {
String gas = getGas();
- BigDecimal amountPow = new BigDecimal(amount).multiply(new BigDecimal("1000000"));
+ 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("."));
--
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