权威证明问题中的 Go-ethereum 私有网络：调用合约方法但没有响应

Posted 2023-02-18

【中文标题】权威证明问题中的 Go-ethereum 私有网络：调用合约方法但没有响应

【英文标题】：Go-ethereum private network in Proof-of-Authority problem: call contract method but nothing response

【发布时间】：2019-12-24 07:04:36

【问题描述】：

当我创建一个具有 POA 共识的 2 节点私有网络时，当我发送一个简单的交易时它工作正常。 但是当我使用 Truffle 部署一个简单的合约 SimpleStorage.sol 时，我想使用 myetherwallet 调用 get() 方法，但它返回 0 ，而不是 100。

SimpleStorage的详细信息如下：

pragma solidity >=0.4.17;

contract SimpleStorage 
    uint storedData = 100;

    function set(uint x) public 
        storedData = x;
    

    function get() public view returns (uint) 
        return storedData;
    

系统信息

Geth Version: 1.8.23-stable
Git Commit: c942700427557e3ff6de3aaf6b916e2f056c1ec2
Architecture: amd64
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.11.5
Operating System: darwin (MacOs)
GOPATH=
GOROOT=/Users/travis/.gimme/versions/go1.11.5.darwin.amd64

Truffle v5.0.7 (core: 5.0.7)
Solidity v0.5.0 (solc-js)
Node v9.10.0

重现行为

Genesis.json

  "config": 
    "chainId": 1515,
    "homesteadBlock": 1,
    "eip150Block": 2,
    "eip150Hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "eip155Block": 3,
    "eip158Block": 3,
    "byzantiumBlock": 4,
    "clique": 
      "period": 2,
      "epoch": 30000
    
  ,
  "nonce": "0x0",
  "timestamp": "0x5d5769ad",
  "extraData": "0x00000000000000000000000000000000000000000000000000000000000000003b50d35ed4032c984992ad0d757ba65338523919fc0f1c754a2dfa18640ce2a0950aea20d1d206940000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "gasLimit": "0x7FFFFFFFFFFFF",
  "difficulty": "0x1",
  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "coinbase": "0x0000000000000000000000000000000000000000",
  "alloc": 
    "3b50d35ed4032c984992ad0d757ba65338523919": 
      "balance": "0x200000000000000000000000000000000000000000000000000000000000000"
    ,
    "fc0f1c754a2dfa18640ce2a0950aea20d1d20694": 
      "balance": "0x200000000000000000000000000000000000000000000000000000000000000"
    
  ,
  "number": "0x0",
  "gasUsed": "0x0",
  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000"

Geth 启动命令

geth --datadir node1/ --syncmode 'full' --port 30312 --rpc --rpcaddr 0.0.0.0 --rpcport 8502 --rpccorsdomain "*" --ws --wsaddr 0.0.0.0 --wsport 8602 --wsorigins "*" --rpcapi admin,db,eth,debug,miner,net,shh,txpool,personal,web3 --wsapi admin,db,eth,debug,miner,net,shh,txpool,personal,web3 --bootnodes 'enode://4765bd12afddce5bb5a2ea55e58ffcdbade132a593bddd9f2723e18460b407039bf07e3fa851b12b0b20c8e0b4c2d3518c9578f201b4efe6ab4d9243e28cccaa@127.0.0.1:30310' --networkid 1515 --gasprice '1' -unlock '0x3b50d35ed4032c984992ad0d757ba65338523919' --password node1/password.txt --mine --targetgaslimit 2251799813685247

松露设置

truffle-config.js

module.exports = 
  networks: 
    geth: 
      host: "127.0.0.1",
      port: 8501,
      from: "0xfc0f1c754a2dfa18640ce2a0950aea20d1d20694",
      network_id: "*",
      gasPrice: "0x47B7600",
      gas: "0x47B7600"
    
  ,

  // Set default mocha options here, use special reporters etc.
  mocha: 
    // timeout: 100000
  ,
  // Configure your compilers
  compilers: 
    solc: 
      // version: "0.5.1",    // Fetch exact version from solc-bin (default: truffle's version)
      // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
      // settings:           // See the solidity docs for advice about optimization and evmVersion
      //  optimizer: 
      //    enabled: false,
      //    runs: 200
      //  ,
      //  evmVersion: "byzantium"
      // 
    
  

迁移脚本

truffle migrate --network geth --reset

预期行为

当调用get()方法时，它应该返回100。

实际行为

它返回了0

我发现还有人和我遇到了类似的问题： One of ethereum solidity methods is not working properly got error Returned values aren't valid, did it run Out of Gas

谁能帮我解决这个问题？谢谢。

【参考方案1】：

我已经弄清楚为什么我无法从变量 storedData 中检索值...

当我将storedData 设置为公开时，它可以正常工作。

（但需要注意的是，如果使用 ganache-cli，即使它不是公共变量，我也可以获得storedData...）

pragma solidity >=0.4.17;

contract SimpleStorage 
    // uint storedData = 100;
    uint public storedData = 100; // set it to be public

    function set(uint x) public 
        storedData = x;
    

    function get() public view returns (uint) 
        return storedData;