购买节点

KKSU

2024-06-06 424ad35dcd1fafb51a0ba77523b11e6871f2858c

 src/main/java/cc/mrbird/febs/dapp/chain/EthService.java

@@ -362,6 +362,35 @@
    }

    @Override
    public BigInteger totalSupplyNFT() {
        try {
            String methodName = "totalSupply";
            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 totalSupply = BigInteger.ZERO;
            try {
                ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
                List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
                totalSupply = (BigInteger) results.get(0).getValue();
                return totalSupply;
            } catch (IOException e) {
                e.printStackTrace();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return BigInteger.ZERO;
    }

    @Override
    public String safeMintNFT(String toAddress) {
        String gas = getGas();