Abstract: An embodiment of the present application discloses a method and a device for processing smart contracts. The processing method includes: executing the smart contract to be invoked based on a class file corresponding to the smart contract. And the class file is pre-compiled based on program logic of the smart contract to be invoked. By implementing the technical scheme of embodiments of the present application, the smart contract can be directly developed based on a Java language, and no additional compiler or interpreter are required. In addition, all functions of the Java language are basically retained, and the technical scheme of the present application is easy to be accessed and used.

Abstract: The present disclosure discloses a method and a system for accessing out-of-chain data based on a consortium block chain. The method for accessing out-of-chain data is performed by an agent program, and the method for accessing out-of-chain data includes: obtaining an access request to out-of-chain data sources sent by a first smart contract on the consortium block chain from a second smart contract, wherein the second smart contract is generated based on the out-of-chain data sources and is deployed on the consortium block chain; searching out-of-chain data in the out-of-chain data sources according to the access request; and sending the out-of-chain data to the second smart contract.