Geth JavaScript console interacts with smart contracts

1. Intelligent Contract Srp.sol Content

Contract Simplestorage {
    uint Storeddata;

    function set (UINT x) {
        storeddata = x;
    }

    function get () constant returns (UINT RetVal) {return
        storeddata;
    }
}

2. Compile the intelligent contract

Solc--bin srp.sol
solc--bin Srp.sol

3.geth JavaScript Console 3.1 Piccgenesis.json Content

{"
  nonce": "0x0000000000000042", "
  difficulty": "0x020000",
  "Mixhash": " 0x0000000000000000000000000000000000000000000000000000000000000000 ","
  Coinbase ":" 0x0000000000000000000000000000000000000000 ","
  timestamp ":" 0x00 ",
  " Parenthash ":" 0x0000000000000000000000000000000000000000000000000000000000000000 ","
  extradata ":" 0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa ",
  " Gaslimit ":" 0X4C4B40 ",
  " config ": {
      "Chainid": 661566,
      "Homesteadblock": 0,
      "Eip155block": 0,
      "Eip158block": 0
  },
  "Alloc": {}
}

3.2 Linux Boot

Geth--datadir/ws/etherum/privatechain Init Piccgenesis.json

Geth--datadir/ws/etherum/privatechain/--rpc--syncmode full--networkid 661566 console
3.3 Windows startup

Geth--datadir D:\geth\chain Init Piccgenesis.json

Geth--datadir D:\geth\chain--rpc--syncmode full--networkid 661566 console 3.4 on the Geth JavaScript console follow the instructions below Can contract

Abi=[{"constant": false, "inputs": [{"Name": "X", "type": "uint256"}], "name": "Set", "outputs": [], "payable": false, " Statemutability ': ' nonpayable ', ' type ': ' function '},{' constant ': true, ' inputs ': [], ' name ': ' Get ', ' outputs ': [{' Name ':] ' RetVal ', ' type ': ' uint256 '}, ' payable ': false, ' statemutability ': ' View ', ' type ': ' function '} ' code= ' 0x6060604052341561000f57600080fd5b60d38061001d6000396000f3006060604052600436106049576000357c01000000000000000000000000000 00000000000000000000000000000900463ffffffff16806360fe47b114604e5780636d4ce63c14606e575b600080fd5b3415605857600080fd5b606c 60048080359060200190919050506094565b005b3415607857600080fd5b607e609e565b6040518082815260200191505060405180910390f35b80600 08190555050565b600080549050905600a165627a7a72305820471ae736fa67702f0c009e5653ff7b15c68fb6588b1ae4c28a8b8ed90c9084120029 "Personal.unlockaccount (eth.accounts[0]) mycontract = eth.contract (ABI) contract = Mycontract.new ({from:eth.accounts
[0],data:code,gas:1000000}]/generated contract transactions in the trading pool, need to be submitted to the block chain contract to be used. Contract = mycontract.at(Contract Address)//To obtain the contract instance from the block chain according to the contract address//log to the block chain before executing contract.set.sendTransaction (2,{from:eth.accounts[0]}) Contract.set.call (2)