Gradle
//bitcionj依赖
implementation 'org.bitcoinj:bitcoinj-core:0.14.7'
创建钱包
WalletAppKit kit = new WalletAppKit(TestNet3Params.get(), ".","walletName" );
//自动保存
kit.setAutoSave(true);
//后台区块下载
kit.setBlockingStartup(false);
//开始运行
kit.startAsync();
kit.awaitRunning();
//添加监听事件
kit.wallet().addCoinsReceivedEventListener(new WalletCoinsReceivedEventListener() {
@Override
public void onCoinsReceived(Wallet wallet, Transaction tx, Coin prevBalance, Coin newBalance) {
final Coin value = tx.getValueSentToMe(wallet);
System.out.println("Received tx for " + value.toFriendlyString() + ": " + tx);
System.out.println("Previous balance is " + prevBalance.toFriendlyString());
System.out.println("New estimated balance is " + newBalance.toFriendlyString());
System.out.println("Coin received, wallet balance is :" + wallet.getBalance());
//币真正到账的回调
Futures.addCallback(tx.getConfidence().getDepthFuture(1), new FutureCallback<TransactionConfidence>() {
@Override
public void onSuccess(TransactionConfidence result) {
// "result" here is the same as "tx" above, but we use it anyway for clarity.
System.out.println("call back is success:"+result.toString());
}
@Override
public void onFailure(Throwable t) {}
});
}
});
查看钱包信息
System.out.println("===========钱包信息==========");
System.out.println(kit.getWallet().toString());
System.out.println("历史接受地址 : " + kit.getWallet().getIssuedReceiveAddresses());
System.out.println("区块更新时间 : " + (kit.getWallet().getLastBlockSeenTime() != null ? TimeUtils.date2String(kit.getWallet().getLastBlockSeenTime()) : null));
System.out.println("区块更新长度 : " + kit.getWallet().getLastBlockSeenHeight());
System.out.println("区块更新hash : " + kit.getWallet().getLastBlockSeenHash());
System.out.println("===========收入信息==========" );
System.out.println("收入总笔数 : " + kit.getWallet().getTransactionPool(WalletTransaction.Pool.UNSPENT).size() + "笔");
for(Object obj : kit.getWallet().getTransactionPool(WalletTransaction.Pool.UNSPENT).entrySet()){
Map.Entry entry = (Map.Entry) obj;
Transaction value = (Transaction) entry.getValue();
System.out.println(value);
}
System.out.println("===========花费信息==========" );
System.out.println("花费总笔数 : " + kit.getWallet().getTransactionPool(WalletTransaction.Pool.SPENT).size() + "笔");
for(Object obj : kit.getWallet().getTransactionPool(WalletTransaction.Pool.SPENT).entrySet()){
Map.Entry entry = (Map.Entry) obj;
Transaction value = (Transaction) entry.getValue();
System.out.println(value);
}
System.out.println("===========待处理信息========");
System.out.println("待处理总笔数 : " + kit.getWallet().getTransactionPool(WalletTransaction.Pool.PENDING).size() + "笔");
for(Object obj : kit.getWallet().getTransactionPool(WalletTransaction.Pool.PENDING).entrySet()){
Map.Entry entry = (Map.Entry) obj;
Transaction value = (Transaction) entry.getValue();
System.out.println(value);
}
System.out.println("===========卡死信息========" );
System.out.println("卡死总笔数 : " + kit.getWallet().getTransactionPool(WalletTransaction.Pool.DEAD).size() + "笔");
for(Object obj : kit.getWallet().getTransactionPool(WalletTransaction.Pool.DEAD).entrySet()){
Map.Entry entry = (Map.Entry) obj;
Transaction value = (Transaction) entry.getValue();
System.out.println(value);
}
钱包历史订单流水
for(Transaction transaction :kit.getWallet().getTransactionsByTime()){
System.out.println("===========交易信息==========");
System.out.println("交易订单 : " + transaction.getHashAsString());
System.out.println("Pending : " + transaction.isPending());
System.out.println("订单时间 : " + transaction.getUpdateTime());
System.out.println("订单金额 : " + transaction.getValue(kit.getWallet()).toFriendlyString());
System.out.println("接受地址 : " + transaction.getOutput(0).getAddressFromP2PKHScript(Constants.NETWORK_PARAMETERS));
System.out.println("订单备注 : " + transaction.getMemo());
}
发送硬币
// Get the address in object form.
final Address targetAddress = Address.fromBase58(TestNet3Params.get(), address);
// Do the send of value BTC in the background. This could throw InsufficientMoneyException.
final Coin coin = Coin.parseCoin(value);
Wallet.SendResult result = kit.getWallet().sendCoins(kit.getPeerGroup(), targetAddress, coin);
System.out.println("开始发送 : " + result.toString());
new Thread(){
@Override
public void run() {
// Wait for the transaction to propagate across the P2P network, indicating acceptance.
try {
Transaction transaction = result.broadcastComplete.get();
System.out.println("发送完成 : " + transaction);
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
}
}.start();
关闭钱包
kit.stopAsync();
kit.awaitTerminated();
其他
//获取助记词
kit.getWallet().getKeyChainSeed().getMnemonicCode();
//获取金额
kit.getWallet().getBalance().toFriendlyString()
