answer is found https://github.com/tronprotocol/java-tron/issues/4624#issuecomment-1235244422
TRON api: wallet/triggerconstantcontract is the same as callstatic of eth, we can use it to invoke the readonly method for querying contract data, and can also use it to invoke the non-readonly method of a contract to check the returned result and estimate the energy consumption of this transaction by energy_limit filed.
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