使用简单的比较运算符调用hedera智能契约函数会导致CONTRACT_REVERT_EXECUTED状态失败

Question

对新手的问题很抱歉。我正在试验hedera合同。每当试图调用一个简单的函数(将uint参数与契约的uint成员进行比较)时，我就会系统地获得一个CONTRACT_REVERT_EXECUTED状态。

固体

    function compare(uint number_) public view returns (bool){
        
        return (number_ > secret_number);
    }

java

    public static boolean compare(Client client, ContractId contractId, int guess) throws TimeoutException, PrecheckStatusException
    {
         // Calls a function of the smart contract
        ContractCallQuery contractQuery = new ContractCallQuery()
             //Set the gas for the query
             .setGas(100_000) 
             //Set the contract ID to return the request for
             .setContractId(contractId)
             //Set the function of the contract to call 
             .setFunction("compare", new ContractFunctionParameters().addUint32(guess))
             //Set the query payment for the node returning the request
             //This value must cover the cost of the request otherwise will fail 
             .setQueryPayment(new Hbar(4)); 

        //Submit to a Hedera network
        ContractFunctionResult getMessage = contractQuery.execute(client);

        
        return getMessage.getBool(0);
    }

线程"main“com.hedera.hashgraph.sdk.PrecheckStatusException: Hedera transaction 0.0.34318751@1651508840.487521537中的异常*异常未能预先检查状态CONTRACT_REVERT_EXECUTED在com.hedera.hashgraph.sdk.Executable.execute(Executable.java:241) at com.hedera.hashgraph.sdk.Executable.execute(Executable.java:241) at com.hedera.hashgraph.sdk.Query.execute(Query.java:29) at com.hedera.hashgraph.sdk.Executable.execute(Executable.java:189) at com.hedera.hashgraph。hbarTexting.GuessNumberSmartContract.compare(GuessNumberSmartContract.java:132) at hbarTexting.GuessNumberSmartContract.main(GuessNumberSmartContract.java:257) *的sdk.Query.execute(Query.java:29)

我在这里做错什么了？

任何帮助都非常感谢！

Answer 1

在正确设置合同函数参数后，我终于开始工作了。

    public static String tryNumberGuess(Client client, ContractId contractId, int guess) throws TimeoutException, PrecheckStatusException
{
     // Calls a function of the smart contract
    ContractCallQuery contractQuery = new ContractCallQuery()
         //Set the gas for the query
         .setGas(1000_000) 
         //Set the contract ID to return the request for
         .setContractId(contractId)
         //Set the function of the contract to call 
         .setFunction("guess", new ContractFunctionParameters().addUint256(new BigInteger(""+guess)))
         //Set the query payment for the node returning the request
         //This value must cover the cost of the request otherwise will fail 
         .setQueryPayment(new Hbar(4)); 

    //Submit to a Hedera network
    ContractFunctionResult getMessage = contractQuery.execute(client);

    
    return getMessage.getString(0);
}

使用SolityVersion0.7.0编译后，得到函数参数所需的Uint256类型。换句话说，Uint32不起作用，但这不仅在编译和在混合内部测试之后是明确的。从最初的可靠源代码看不清楚..。

Answer 2

根据sdk的单元测试，有三种情况下会抛出操作码：

当未设置合同函数参数时，

1. 无法执行合同

测试: ContractExecuteIntegrationTest

未设置合同函数时，

1. 无法调用合同函数

测试: ContractCallIntegrationTest

未设置构造函数参数时，

1. 无法创建契约

测试: ContractCreateIntegrationTest

金:-)