How to use web3j to convert sol Smart contracts into java Files

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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 ()

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