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This article introduces the knowledge of "how to use web3j to convert sol intelligent contracts into java files". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

First, install web3j

$brew tap web3j/web3j$ brew install web3j$ web3j _ | _ (_) (_) _ | | _ _ / _\ / _ _'_\ | | | / _\ V / _ _ / | _ _ | |. _ _ / / | _ | (_) |\ _ /\ _ /\ _ | _ /\ _ / | | (_) | _ |\ _ / / | | _ _ / Usage: web3j version | wallet | solidity. |

Second, install solc

Sudo npm install-g solc

III. Generate .bin and .abi

Solcjs / Users/shijun/Desktop/truffleWorkspace/eCommerce/contracts/ConfirmOrder.sol-- bin-- abi-- optimze-o/Users/shijun/Desktop/truffleWorkspace/eCommerce_out

Fourth, generate .java

$web3j solidity generate-- solidityTypes / Users/shijun/Desktop/truffleWorkspace/eCommerce_out/_Users_shijun_Desktop_truffleWorkspace_eCommerce_contracts_ConfirmOrder_sol_ConfirmOrderContract.bin / Users/shijun/Desktop/truffleWorkspace/eCommerce_out/_Users_shijun_Desktop_truffleWorkspace_eCommerce_contracts_ConfirmOrder_sol_ConfirmOrderContract.abi-o / Users/shijun/Desktop/truffleWorkspace/eCommerce_out-p www.membersheep.hk.web3j

=

Web3j solidity generate-- solidityTypes / Users/shijun/Desktop/truffleWorkspace/sheepCoin_out/_Users_shijun_Desktop_truffleWorkspace_sheepCoin_tokenecr20_sol_TokenERC20.bin / Users/shijun/Desktop/truffleWorkspace/sheepCoin_out/_Users_shijun_Desktop_truffleWorkspace_sheepCoin_tokenecr20_sol_TokenERC20.abi-o / Users/shijun/Desktop/truffleWorkspace/sheepCoin_out-p Shpcoin.web3j

Web3j solidity generate-- solidityTypes / Users/shijun/Desktop/truffleWorkspace/sheepCoin_out/_Users_shijun_Desktop_truffleWorkspace_sheepCoin_tokenecr20_sol_tokenRecipient.bin / Users/shijun/Desktop/truffleWorkspace/sheepCoin_out/_Users_shijun_Desktop_truffleWorkspace_sheepCoin_tokenecr20_sol_tokenRecipient.abi-o / Users/shijun/Desktop/truffleWorkspace/sheepCoin_out-p Shpcoin.web3j

Put the java file into the project

VI. Start the private chain

Miner.start (1)

Miner.stop ()

This is the end of "how to use web3j to convert sol smart contracts into java files". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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