java交易代码_java以太坊库web3j文档

交易编码

package org.web3j.crypto;

import java.math.BigInteger;

import java.util.List;

import org.junit.Test;

import org.web3j.rlp.RlpString;

import org.web3j.rlp.RlpType;

import org.web3j.utils.Numeric;

import static org.hamcrest.CoreMatchers.is;

import static org.hamcrest.core.IsEqual.equalTo;

import static org.junit.Assert.assertThat;

public class TransactionEncoderTest {

@Test

public void testSignMessage() {

byte[] signedMessage = TransactionEncoder.signMessage(

createEtherTransaction(), SampleKeys.CREDENTIALS);

String hexMessage = Numeric.toHexString(signedMessage);

assertThat(hexMessage,

is("0xf85580010a840add5355887fffffffffffffff80"

+ "1c"

+ "a046360b50498ddf5566551ce1ce69c46c565f1f478bb0ee680caf31fbc08ab727"

+ "a01b2f1432de16d110407d544f519fc91b84c8e16d3b6ec899592d486a94974cd0"));

}

@Test

public void testEtherTransactionAsRlpValues() {

List rlpStrings = TransactionEncoder.asRlpValues(createEtherTransaction(),

new Sign.SignatureData((byte) 0, new byte[32], new byte[32]));

assertThat(rlpStrings.size(), is(9));

assertThat(rlpStrings.get(3), equalTo(RlpString.create(new BigInteger("add5355", 16))));

}

@Test

public void testContractAsRlpValues() {

List rlpStrings = TransactionEncoder.asRlpValues(

createContractTransaction(), null);

assertThat(rlpStrings.size(), is(6));

assertThat(rlpStrings.get(3), is(RlpString.create("")));

}

@Test

public void testEip155Encode() {

assertThat(TransactionEncoder.encode(createEip155RawTransaction(), (byte) 1),

is(Numeric.hexStringToByteArray(

"0xec098504a817c800825208943535353535353535353535353535353535353535880de0"

+ "b6b3a764000080018080")));

}

@Test

public void testEip155Transaction() {

// https://github.com/ethereum/EIPs/issues/155

Credentials credentials = Credentials.create(

"0x4646464646464646464646464646464646464646464646464646464646464646");

assertThat(TransactionEncoder.signMessage(

createEip155RawTransaction(), (byte) 1, credentials),

is(Numeric.hexStringToByteArray(

"0xf86c098504a817c800825208943535353535353535353535353535353535353535880"

+ "de0b6b3a76400008025a028ef61340bd939bc2195fe537567866003e1a15d"

+ "3c71ff63e1590620aa636276a067cbe9d8997f761aecb703304b3800ccf55"

+ "5c9f3dc64214b297fb1966a3b6d83")));

}

private static RawTransaction createEtherTransaction() {

return RawTransaction.createEtherTransaction(

BigInteger.ZERO, BigInteger.ONE, BigInteger.TEN, "0xadd5355",

BigInteger.valueOf(Long.MAX_VALUE));

}

static RawTransaction createContractTransaction() {

return RawTransaction.createContractTransaction(

BigInteger.ZERO, BigInteger.ONE, BigInteger.TEN, BigInteger.valueOf(Long.MAX_VALUE),

"01234566789");

}

private static RawTransaction createEip155RawTransaction() {

return RawTransaction.createEtherTransaction(

BigInteger.valueOf(9), BigInteger.valueOf(20000000000L),

BigInteger.valueOf(21000), "0x3535353535353535353535353535353535353535",

BigInteger.valueOf(1000000000000000000L));

}

}