Thanks a lot for your reply, I just want to send transaction by peer to
peer, follow your suggestion, I finished the transfer function, but the
receive address did not receive bitcoin, can you help me to find something
wrong with my code?
public void transfer(List<SendIn> sendInList, List<SendOut> sendOutList,
List<String> privateKeys) {
NetworkParameters networkParameters = TestNet3Params.get();
Transaction myOwnConstructedTx = new Transaction(networkParameters);
// List<TransactionOutput> outputsToMyAddr = something(); // where ever you
got these from
try {
for (int i = 0; i < sendInList.size(); i++) {
String address = sendInList.get(i).getAddress();
String txHash = sendInList.get(i).getTxHash();
String txData = getTxData(txHash);
byte[] bytes = Utils.HEX.decode(txData);
Transaction spentTx = new Transaction(networkParameters, bytes);
for (int j = 0; j < spentTx.getOutputs().size(); j++) {
if
(address.equals(spentTx.getOutput(j).getScriptPubKey().getToAddress(networkParameters).toString()))
{
myOwnConstructedTx.addInput(spentTx.getOutput(j));
break;
}
}
}
for (int i = 0; i < sendOutList.size(); i++) {
String addressJson = sendOutList.get(i).getAddress();
String coinJson = sendOutList.get(i).getValue().toString();
Address address = new Address(networkParameters, addressJson);
Coin coin = Coin.parseCoin(coinJson);
myOwnConstructedTx.addOutput(coin, address);
}
} catch (Exception e) {
e.printStackTrace();
}
// myOwnConstructedTx.addInput(outputsToMyAddr.get(0));
List<ECKey> eckeys = new ArrayList<ECKey>();
for (String privateKey : privateKeys) {
ECKey key;
if (privateKey.length() == 51 || privateKey.length() == 52) {
DumpedPrivateKey dumpedPrivateKey =
DumpedPrivateKey.fromBase58(networkParameters, privateKey);
key = dumpedPrivateKey.getKey();
} else {
BigInteger privKey = Base58.decodeToBigInteger(privateKey);
key = ECKey.fromPrivate(privKey);
}
eckeys.add(key);
}
KeyChainGroup group = new KeyChainGroup(networkParameters);
group.importKeys(eckeys);
KeyBag keys = new Wallet(networkParameters, group); // or a wallet, or
something else with keys that can sign the used UTXO
TransactionInput input = myOwnConstructedTx.getInput(0);
Script scriptPubKey =
myOwnConstructedTx.getInput(0).getConnectedOutput().getScriptPubKey();
RedeemData redeemData = input.getConnectedRedeemData(keys);
input.setScriptSig(scriptPubKey.createEmptyInputScript(redeemData.keys.get(0),
redeemData.redeemScript));
TransactionSigner.ProposedTransaction proposal = new
TransactionSigner.ProposedTransaction(myOwnConstructedTx);
new LocalTransactionSigner().signInputs(proposal, keys);
PeerGroup peerGroup = new PeerGroup(networkParameters);
peerGroup.broadcastTransaction(myOwnConstructedTx);
}
在 2016年12月14日星期三 UTC+8上午5:53:22，Tobias B.写道：
>
> What do you mean by not in your wallet? I think you need the UTXO in some
> way. But it doesn't have to be contained in a wallet. When you have
> information about a transaction that pays to your bitcoin address you can
> construct a transaction using this UTXO without a wallet by construction
> the transaction yourself.
> Let's say you have a list of transaction outputs that pay to your address
> and are not already spent:
>
> List<TransactionOutput> outputsToMyAddr = something(); // where ever you
> got these from
>
> Transaction myOwnConstructedTx = new
> Transaction(myconf.getNetworkParameters());
>
> myOwnConstructedTx.addInput(outputsToMyAddr.get(0));
>
> KeyBag keys = getSomeKeyChainGroup(); // or a wallet, or something else
> with keys that can sign the used UTXO
>
> TransactionInput input = myOwnConstructedTx.getInput(0);
> Script scriptPubKey =
> myOwnConstructedTx.getInput(0).getConnectedOutput().getScriptPubKey();
> RedeemData redeemData = txIn.getConnectedRedeemData(keys);
> input.setScriptSig(scriptPubKey.createEmptyInputScript(redeemData.keys.get(0),
>
> redeemData.redeemScript));
> TransactionSigner.ProposedTransaction proposal = new
> TransactionSigner.ProposedTransaction(tx);
> new LocalTransactionSigner().signInputs(proposal, keys);
>
> PeerGroup peerGroup = getAPeerGroup();
> peerGroup.broadcastTransaction(tx);
>
> I think something like that should do it.
>
> Am Montag, 12. Dezember 2016 08:33:31 UTC+1 schrieb liuwh:
>>
>> is it possible send transaction from one bitcoin address (not in wallet)
>> to another address by bitcoinj?
>> I have read some bitcoinj sample about send transaction in bitcoinj,
>> almost all of them are realized by Wallet, UTXO's are in wallet.
>>
>
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