区块链智能合约部署初探

转自：　https://www.ethereum.org/greeter

参考：　http://www.jianshu.com/p/c53ede8fab36

注意：　在另一个节点调用合约的时候，要想下文中将的那样，通过ABI＋Address来调用，可以通过设置局部变量来简化代码

e.g.  var greeter2 = eth.contract([{constant:false,inputs:[],name:'kill',outputs:[],type:'function'},{constant:true,inputs:[],name:'greet',outputs:[{name:'',type:'string'}],type:'function'},{inputs:[{name:'_greeting',type:'string'}],type:'constructor'}]).at('greeterAddress'); (Replace greeterAddress with your contract's address.)

              greeter2.greet()

程序及步骤：

/***********Contract Content***************/
contract mortal {
    /* Define variable owner of the type address */
    address owner;

    /* This function is executed at initialization and sets the owner of the contract */
    function mortal() { owner = msg.sender; }

    /* Function to recover the funds on the contract */
    function kill() { if (msg.sender == owner) selfdestruct(owner); }
}

contract greeter is mortal {
    /* Define variable greeting of the type string */
    string greeting;
    
    /* This runs when the contract is executed */
    function greeter(string _greeting) public {
        greeting = _greeting;
    }

    /* Main function */
    function greet() constant returns (string) {
        return greeting;
    }
}

/***********Compile Result********************/
var _greeting = /* var of type string here */ ;
var browser_greet_sol_greeterContract = web3.eth.contract([{"constant":false,"inputs":[],"name":"kill","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"greet","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_greeting","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]);
var browser_greet_sol_greeter = browser_greet_sol_greeterContract.new(
   _greeting,
   {
     from: web3.eth.accounts[0], 
     data: '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', 
     gas: '4700000'
   }, function (e, contract){
    console.log(e, contract);
    if (typeof contract.address !== 'undefined') {
         console.log('Contract mined! address: ' + contract.address + ' transactionHash: ' + contract.transactionHash);
    }
 })

Step 1: Compile the contract
Step 2: Deploy  Now you can paste the resulting text on your geth window, or import the file with loadScript("yourFilename.js")
        Check contract address   eth.getCode(greeter.address)
Step 3: Run the Greeter    greeter.greet()
step 4: Getting other people to interact with your code
        Replace 'ABI' (an array) and 'Address' (a string) to create a contract object in JavaScript:
        var greeter = eth.contract(ABI).at(Address);
        e.g.  var greeter2 = eth.contract([{constant:false,inputs:[],name:'kill',outputs:[],type:'function'},{constant:true,inputs:[],name:'greet',outputs:[{name:'',type:'string'}],type:'function'},{inputs:[{name:'_greeting',type:'string'}],type:'constructor'}]).at('greeterAddress'); (Replace greeterAddress with your contract's address.)
Step 5: Cleaning up after yourself
        greeter.kill.sendTransaction({from:eth.accounts[0]})
        This can only be triggered by a transaction sent from the contracts owner. You can verify that the deed is done simply seeing if this returns 0:
        eth.getCode(greeter.address)