bitcoinj测试网事务解码问题

Question

我试图使用bitcoinj 0.14.7对testnet事务进行解码。这是我试图解码的交易的HEX：

02000000000101ef4c1c3c60028b050a5798265c0b37719418dd71b0621e76a68a47d5d9eef55f000000001716001467d7c32c0dad98bf8dd3dea81cbb1dbd4ea4afb5feffffff02b7df02000000000017a914ebb55a85454dc15589b8a87bab4b438892b54c0c87b0ad0100000000001976a914140b85a1c430c8f4fd1f91ae1c7451902b8ce76c88ac024730440220359623836f97e9e4c04917455ed2f9fb2343b0bf96853d47313b0c96d828c889022046da37bfda03cf3481e3ef5c5b5e655d6fd280c2aec2831b6494a8207b76655b01210224c44e1af98b5c28ebf822b65e4a2872d0780b4b6935b3100f60d3ac3b78cb00b2f81500

当我进入块密码https://live.blockcypher.com/btc/decodetx/，并解码那里的事务-它被解码没有问题。但当我试图这么做的时候

Transaction tx = new Transaction(params, HexUtils.hexToBytes(txHex));
LOGGER.info(tx.toString());

印出来

4c67f1e1b10b063210e59400466383fb18634c05430d4f53795a16216dd34ffd 
version 2 
INCOMPLETE: No inputs! 
out [exception: Push of data element that is larger than remaining data] 
prps UNKNOWN

此外，我检查了我的代码与师父，它的措辞像一个魅力！这是输出：

65b47da760fb781a80e8607e19c82454f12c4ee8dd699045d4e96c869e07bf25
version 2
time locked until block 1439922
in PUSHDATA(22)[001467d7c32c0dad98bf8dd3dea81cbb1dbd4ea4afb5]
witness:30440220359623836f97e9e4c04917455ed2f9fb2343b0bf96853d47313b0c96d828c889022046da37bfda03cf3481e3ef5c5b5e655d6fd280c2aec2831b6494a8207b76655b01 0224c44e1af98b5c28ebf822b65e4a2872d0780b4b6935b3100f60d3ac3b78cb00
outpoint:5ff5eed9d5478aa6761e62b071dd189471370b5c2698570a058b02603c1c4cef:0
sequence:fffffffe
out HASH160 PUSHDATA(20)[ebb55a85454dc15589b8a87bab4b438892b54c0c] EQUAL 0.00188343 BTC
P2SH addr:2NEjY32rnrCdi8Cve6yJ4RaPanugBnJ8fme
out DUP HASH160 PUSHDATA(20)[140b85a1c430c8f4fd1f91ae1c7451902b8ce76c] EQUALVERIFY CHECKSIG 0.0011 BTC
P2PKH addr:mhLwcTEoquZcAjT34fD4uPySUAdK77uqvL
prps UNKNOWN

求你了救命！

Answer 1

您的代码只是创建一个事务对象，所以这还不够。

您的要求是从块中获取事务。因此，您需要连接一个testnet节点。只需创建一个PeerGroup连接本地或远程比特币测试网节点。

请查看下面的示例。

    final NetworkParameters params = TestNet3Params.get();

    BlockStore blockStore = new MemoryBlockStore(params);
    BlockChain chain = new BlockChain(params, blockStore);
    PeerGroup peerGroup = new PeerGroup(params, chain);
    peerGroup.start();
    // Alternatively you can connect your localhost or another working testnet node
    peerGroup.addAddress(new PeerAddress(params, "testnet-seed.bitcoin.jonasschnelli.ch", 18333));
    peerGroup.waitForPeers(1).get();
    Peer peer = peerGroup.getConnectedPeers().get(0);

    Sha256Hash txHash = Sha256Hash.wrap(hexString);
    ListenableFuture<Transaction> future = peer.getPeerMempoolTransaction(txHash);
    System.out.println("Waiting for node to send us the requested transaction: " + txHash);
    Transaction tx = future.get();
    System.out.println(tx);