还有心情来写文章和看文章的，也真是佛系了！

对以太坊交易结果检测一直存有疑问，再来从交易数据理一下。

转帐

未打包

> eth.getTransaction("0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5")
{
  blockHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
  blockNumber: null,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gas: 90000,
  gasPrice: 10000000000,
  hash: "0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5",
  input: "0x",
  nonce: 297,
  r: "0xba32b89aefe894dc994e57bebaafba69da17f43484176f8b85e6db5f50bae40e",
  s: "0x7f3119a44dec4365a92f0824eddde1415ee21f6f7f2b3b40368ee9ed94b239e4",
  to: "0x469f07278600b1cb031448fd25f187f24a89ecb6",
  transactionIndex: 0,
  v: "0x42",
  value: 100
}

> eth.getTransactionReceipt("0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5")
null

已打包，交易成功

> eth.getTransaction("0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5")
{
  blockHash: "0x3d2eb9089222e86e2ad7c07e26e63b7e03687b2895456351895895e0c2e0abfb",
  blockNumber: 21202,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gas: 90000,
  gasPrice: 10000000000,
  hash: "0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5",
  input: "0x",
  nonce: 297,
  r: "0xba32b89aefe894dc994e57bebaafba69da17f43484176f8b85e6db5f50bae40e",
  s: "0x7f3119a44dec4365a92f0824eddde1415ee21f6f7f2b3b40368ee9ed94b239e4",
  to: "0x469f07278600b1cb031448fd25f187f24a89ecb6",
  transactionIndex: 0,
  v: "0x42",
  value: 100
}

> eth.getTransactionReceipt("0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5")
{
  blockHash: "0x3d2eb9089222e86e2ad7c07e26e63b7e03687b2895456351895895e0c2e0abfb",
  blockNumber: 21202,
  contractAddress: null,
  cumulativeGasUsed: 21000,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gasUsed: 21000,
  logs: [],
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  root: "0x19d7db804506eaa7af7c9e4303361aa7fad5027ec09a66f13745f1e9df185e1b",
  to: "0x469f07278600b1cb031448fd25f187f24a89ecb6",
  transactionHash: "0x9b03576991948f3e129651f07aef16d510e12d471b836ab7ecf5d5bfd49657f5",
  transactionIndex: 0
}

---

合约函数调用

调用合约

> contract_print_custodian.requestUnlock.sendTransaction("0x52e19166f9481e51d02b183db5d9ee83e951597375fa9b005c992b45e7851e82", "0x651a2fc0b59a8478c92fe088e012ffce665ba965", "0x8cbf4145", "0x54b865714068f5f03574ace39a1f3279c4e83e2c", {from:a0, value:web3.toWei(0,"ether"), gas:210000, gasPrice: web3.toWei(7,'gwei')})
"0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e"

未打包

函数已调用，未打包，取交易数据

> eth.getTransaction("0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e")
{
  blockHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
  blockNumber: null,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gas: 210000,
  gasPrice: 7000000000,
  hash: "0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e",
  input: "0xa706a2e252e19166f9481e51d02b183db5d9ee83e951597375fa9b005c992b45e7851e82000000000000000000000000651a2fc0b59a8478c92fe088e012ffce665ba9658cbf41450000000000000000000000000000000000000000000000000000000000000000000000000000000054b865714068f5f03574ace39a1f3279c4e83e2c",
  nonce: 295,
  r: "0x9073f55a09da42ec5380188fe9f7a621b7961c5e63591192152a42e292c14aba",
  s: "0x24819c0e4aeefd7538e054a9bf30305b8bd6bb4b0d1f52cb8cb577aa898cf130",
  to: "0xb6b5821a592dd7e4bd46ebbc406d223db6ba849b",
  transactionIndex: 0,
  v: "0x41",
  value: 0
}

取交易凭据

> eth.getTransactionReceipt("0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e")
null

已打包，调用成功

取交易数据

> eth.getTransaction("0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e")
{
  blockHash: "0xf649b43869074be46fb4dc8306af73689cd1890bc94b5cac2c570fdb95ddded0",
  blockNumber: 21195,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gas: 210000,
  gasPrice: 7000000000,
  hash: "0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e",
  input: "0xa706a2e252e19166f9481e51d02b183db5d9ee83e951597375fa9b005c992b45e7851e82000000000000000000000000651a2fc0b59a8478c92fe088e012ffce665ba9658cbf41450000000000000000000000000000000000000000000000000000000000000000000000000000000054b865714068f5f03574ace39a1f3279c4e83e2c",
  nonce: 295,
  r: "0x9073f55a09da42ec5380188fe9f7a621b7961c5e63591192152a42e292c14aba",
  s: "0x24819c0e4aeefd7538e054a9bf30305b8bd6bb4b0d1f52cb8cb577aa898cf130",
  to: "0xb6b5821a592dd7e4bd46ebbc406d223db6ba849b",
  transactionIndex: 0,
  v: "0x41",
  value: 0
}

取交易凭据

> eth.getTransactionReceipt("0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e")
{
  blockHash: "0xf649b43869074be46fb4dc8306af73689cd1890bc94b5cac2c570fdb95ddded0",
  blockNumber: 21195,
  contractAddress: null,
  cumulativeGasUsed: 128181,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gasUsed: 128181,
  logs: [{
      address: "0xb6b5821a592dd7e4bd46ebbc406d223db6ba849b",
      blockHash: "0xf649b43869074be46fb4dc8306af73689cd1890bc94b5cac2c570fdb95ddded0",
      blockNumber: 21195,
      data: "0x52e19166f9481e51d02b183db5d9ee83e951597375fa9b005c992b45e7851e82000000000000000000000000651a2fc0b59a8478c92fe088e012ffce665ba9658cbf41450000000000000000000000000000000000000000000000000000000047718117c471a08733f7849bcfef6765519bdd3097a71ef9ae6d1368e886684600000000000000000000000054b865714068f5f03574ace39a1f3279c4e83e2cee90af9d5aafb41e842dc5e48553221934e6ea89347f1eb94ef381dfe8b4ccb8000000000000000000000000000000000000000000000000000000005bf3a8ca",
      logIndex: 0,
      removed: false,
      topics: ["0xdb7266ce4b13a685194a86c2cb74e34d93b88ba3a4966cf3efdf1abc8ad1cbec"],
      transactionHash: "0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e",
      transactionIndex: 0
  }],
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000001000000000000000000000000000000000000010000000000000000000000000000000",
  root: "0x9e5f8466790ad9c2e993dccbc8aaf4cfb419d43ee7691043fda38634b95805b4",
  to: "0xb6b5821a592dd7e4bd46ebbc406d223db6ba849b",
  transactionHash: "0x6e46e4436146bf31510c568338dc9a63ea03ca7c23429b818d54b8867f34be3e",
  transactionIndex: 0
}

已打包，gas不足

取交易数据

> eth.getTransaction("0xa9d1a487cc14c1e597831bba6e028cd4a895ea879844a962afcd8dc4ad54b488")
{
  blockHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
  blockNumber: null,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gas: 100000,
  gasPrice: 7000000000,
  hash: "0xa9d1a487cc14c1e597831bba6e028cd4a895ea879844a962afcd8dc4ad54b488",
  input: "0xa706a2e252e19166f9481e51d02b183db5d9ee83e951597375fa9b005c992b45e7851e82000000000000000000000000651a2fc0b59a8478c92fe088e012ffce665ba9658cbf41450000000000000000000000000000000000000000000000000000000000000000000000000000000054b865714068f5f03574ace39a1f3279c4e83e2c",
  nonce: 296,
  r: "0x7c2242ba3f694496b2ffc05f10817a51f90e5a5db62561c46cbf0d1aafa12a94",
  s: "0x2dab4b37bc5525a420a2f7fe46bf2226207341a3690f8083639f8814ebf9f07e",
  to: "0xb6b5821a592dd7e4bd46ebbc406d223db6ba849b",
  transactionIndex: 0,
  v: "0x41",
  value: 0
}

取交易凭据

> eth.getTransactionReceipt("0xa9d1a487cc14c1e597831bba6e028cd4a895ea879844a962afcd8dc4ad54b488")
{
  blockHash: "0x07ee5bb986f44abbc290d3e8450f57cf9c886cff3724e31e4f78d4bbcc3c1bd7",
  blockNumber: 21200,
  contractAddress: null,
  cumulativeGasUsed: 100000,
  from: "0x54b865714068f5f03574ace39a1f3279c4e83e2c",
  gasUsed: 100000,
  logs: [],
  logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  root: "0x25e2ceebab1e6cee9a879b13ef9fb93e01f22308d0b1d16b1ed5c8e6e62f21d4",
  to: "0xb6b5821a592dd7e4bd46ebbc406d223db6ba849b",
  transactionHash: "0xa9d1a487cc14c1e597831bba6e028cd4a895ea879844a962afcd8dc4ad54b488",
  transactionIndex: 0
}

---

数据比较

1. 未打包前blockHash为0，blockNumber为null
2. 打包后blockHash块哈希，blockNumber有块号
3. 未打包无交易凭据，打包后有交易凭据（不管调用是否成功）
4. 合约调用成功后交易凭据中logs会有数据（可能是事件数据，未再确定），但普通转帐交易凭据中logs无数据
5. 合约调用成功后交易凭据中gasUsed可能小于gas，如果gas指定不足调用后gasUsed等于gas
6. 合约调用input为调用数据，而普通转帐交易input为"0x"

---

交易结果检测

可以看出即使打包了，交易也未必成功。那怎么来判断结果呢？从网上找了有几种方法：

1、判断gas == gasUsed，如果相等则“Out of Gas”，但是好像有可能正常交易也会相等；
2、使用debug.traceTransaction判断

> var status = debug.traceTransaction("0x9ee86a200528de32a695f1e2dd0d94a3871fefc7e49c5fd24a4a37eab1b99f7a")
undefined
> status.structLogs[status.structLogs.length-1].error

3、从块4370000 (Byzantium)后可以通过"status"进行判断，为0失败，为1成功

{
  blockHash: '0xb1fcff633029ee18ab6482b58ff8b6e95dd7c82a954c852157152a7a6d32785e',
  blockNumber: 4370000,
  contractAddress: null,
  cumulativeGasUsed: 21000,
  gasUsed: 21000,
  logs: [],
  logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  root: null,
  status: 1, // **** HERE IS THE STATUS FIELD *****
  transactionHash: '0x1421a887a02301ae127bf2cd4c006116053c9dc4a255e69ea403a2d77c346cf5',
  transactionIndex: 0 
}

4、调用合约函数如果有事件，可使用logs数据，如果成功logs中有事件记录，如果失败为空。

---

参考

https://ethereum.stackexchange.com/questions/6007/how-can-the-transaction-status-from-a-thrown-error-be-detected-when-gas-can-be-e/6010#6010

https://ethereum.stackexchange.com/questions/6002/transaction-status