区块链商城系统是一个基于区块链技术构建的电子商务平台，通过区块链的特性提供更安全、透明和可信赖的交易环境。
这里提供一个简单的基于 Java 和 Hyperledger Fabric 1.3 的区块链商城开发源码demo，可以参考实现自己的区块链商城。
在开始之前，需要先安装 Java 8，并下载并安装 Hyperledger Fabric 1.3。
1、创建 Docker 容器
$ docker-compose up -d
2、创建创世区块
BlockFactory blockFactory = new BlockFactory(channel);
GenesisBlock genesisBlock = new GenesisBlock();
channel.write(blockFactory.newBlock(genesisBlock));
3、创建智能合约
public class MerchantContract extends Contract {
@智能合约接口方法名("createMerchant")
public Future createMerchant(String name) {
// 模拟一些操作
Thread.sleep(5000);
return TransactionResult.builder().build(Response.success(new CreateMerchantResponse(name)));
}
}
4、创建客户端代码
ConfigtxConfig config = new ConfigtxConfig();
config.setApplicationName("merchant-system");
config.setChannelName("msp");
config.setOrganizations(Arrays.asList(new ApplicationOrg(), new ApplicationOrg(), new ApplicationOrg()));
MerchantChannelFactory merchantChannelFactory = new MerchantChannelFactory();
碉堡 bileaderAdmin.updateAnchorPeers(Arrays.asList(new AnchorPeer("peer0", "127.0.0.1:7051")));
String channelName = "merchant-system";
String userName = "User1";
String password = "User1";
String enrollId = "User1";
String enrollSecret = "User1";
Client client = new Client("127.0.0.1:7051", userName, password);
client.connect();
System.out.println("Enrollment certificate: " + client.getEnrollmentCertificate());
byte[] enrollmentIdBytes = Base64.getDecoder().decode(enrollId);
X509Certificate2 enrollmentCertificate = (X509Certificate2) client.getEnrollmentManager().getCertificate(new DERReader(enrollmentIdBytes));
IIdentity identity = new X509Identity(enrollmentCertificate);
client.joinChannel(channelName, config, Collections.singletonList(identity));
