{"id":246157,"date":"2022-02-01T07:06:57","date_gmt":"2022-01-31T23:06:57","guid":{"rendered":"https:\/\/www.idc.net\/help\/246157\/"},"modified":"2022-02-01T07:06:57","modified_gmt":"2022-01-31T23:06:57","slug":"hyperledger-fabric-2-x-java%e5%8c%ba%e5%9d%97%e9%93%be%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/246157\/","title":{"rendered":"Hyperledger Fabric 2.x Java\u533a\u5757\u94fe\u5e94\u7528"},"content":{"rendered":"

\u4e00\u3001\u8bf4\u660e<\/h2>\n

\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d \u300aHyperledger Fabric 2.x \u81ea\u5b9a\u4e49\u667a\u80fd\u5408\u7ea6\u300b \u5206\u4eab\u4e86\u667a\u80fd\u5408\u7ea6\u7684\u5b89\u88c5\u5e76\u4f7f\u7528 cli \u5ba2\u6237\u7aef\u8fdb\u884c\u5408\u7ea6\u7684\u8c03\u7528;\u672c\u6587\u5c06\u4f7f\u7528 Java \u4ee3\u7801\u57fa\u4e8e fabric-gateway-java \u8fdb\u884c\u533a\u5757\u94fe\u7f51\u7edc\u7684\u8bbf\u95ee\u4e0e\u4ea4\u6613\uff0c\u5e76\u96c6\u6210 SpringBoot \u6846\u67b6\u3002<\/p>\n

Fabric Gateway SDK \u5b9e\u73b0Fabric\u7684\u7f16\u7a0b\u6a21\u578b\uff0c\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7b80\u5355\u7684API\u7ed9\u5e94\u7528\u7a0b\u5e8f\u4e0eFabric\u533a\u5757\u94fe\u7f51\u7edc\u8fdb\u884c\u4ea4\u4e92;<\/p>\n

\u7f51\u7edc\u62d3\u6251\u56fe\uff1a<\/p>\n

\n

file<\/p>\n

\u5e94\u7528\u7a0b\u5e8f\u5c06\u5404\u81ea\u7684\u7f51\u7edc\u4ea4\u4e92\u59d4\u6258\u7ed9\u5176\u7f51\u5173\uff0c\u6bcf\u4e2a\u7f51\u5173\u90fd\u4e86\u89e3\u7f51\u7edc\u4fe1\u9053\u62d3\u6251\uff0c\u5305\u62ec\u7ec4\u7ec7\u7684\u591a\u4e2aPeer\u8282\u70b9\u548c\u6392\u5e8f\u8282\u70b9\uff0c\u4f7f\u5e94\u7528\u7a0b\u5e8f\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u903b\u8f91;Peer\u8282\u70b9\u53ef\u4ee5\u4f7f\u7528gossip\u534f\u8bae\u5728\u7ec4\u7ec7\u5185\u90e8\u548c\u7ec4\u7ec7\u4e4b\u95f4\u76f8\u4e92\u901a\u4fe1\u3002<\/p>\n

\u4e8c\u3001Mavn\u4f9d\u8d56<\/h2>\n

\u6dfb\u52a0\u7f51\u5173sdk\u7684\u4f9d\u8d56\uff1a<\/p>\n

<<\/span>dependency><\/span>
  <<\/span>groupId><\/span>org.hyperledger<\/span>.fabric<\/span><\/<\/span>groupId><\/span>
  <<\/span>artifactId><\/span>fabric-<\/span>gateway-<\/span>java<\/<\/span>artifactId><\/span>
  <<\/span>version><\/span>2.2<\/span>.3<\/span><\/<\/span>version><\/span>
<\/<\/span>dependency><\/span>
<\/pre>\n
\u4e09\u3001\u51c6\u5907\u914d\u7f6e\u6587\u4ef6<\/h2>\n
\u5de5\u7a0b\u7684\u76ee\u5f55\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n
\n
3.1. \u51c6\u5907\u7f51\u7edc\u8bc1\u4e66<\/h3>\n
\u521b\u5efa\u76ee\u5f55 crypto-config \u628a orderer \u548c peer \u8282\u70b9\u7684\u8bc1\u4e66\u6587\u4ef6\u590d\u5236\u8fdb\u6765\u3002<\/p>\n
\u8bc1\u4e66\u6587\u4ef6\u4ece fabric-samples \u7684 test-network \u76ee\u5f55\u4e2d\u590d\u5236 ordererOrganizations \u4e0e peerOrganizations \u6587\u4ef6\u5939\uff1a<\/p>\n
\n
<\/p>\n
3.2. \u521b\u5efa\u7f51\u7edc\u914d\u7f6e<\/h3>\n
\u521b\u5efa\u6587\u4ef6 connection.json \u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
{<\/span>
    \"name\"<\/span>:<\/span> \"basic-network\"<\/span>,<\/span>
    \"version\"<\/span>:<\/span> \"1.0.0\"<\/span>,<\/span>
    \"client\"<\/span>:<\/span> {<\/span>
        \"organization\"<\/span>:<\/span> \"Org1\"<\/span>,<\/span>
        \"connection\"<\/span>:<\/span> {<\/span>
            \"timeout\"<\/span>:<\/span> {<\/span>
                \"peer\"<\/span>:<\/span> {<\/span>
                    \"endorser\"<\/span>:<\/span> \"300\"<\/span>
                }<\/span>,<\/span>
                \"orderer\"<\/span>:<\/span> \"300\"<\/span>
            }<\/span>
        }<\/span>
    }<\/span>,<\/span>
    \"channels\"<\/span>:<\/span> {<\/span>
        \"mychannel\"<\/span>:<\/span> {<\/span>
            \"orderers\"<\/span>:<\/span> [<\/span>
                \"orderer.example.com\"<\/span>
            ]<\/span>,<\/span>
            \"peers\"<\/span>:<\/span> {<\/span>
                \"peer0.org1.example.com\"<\/span>:<\/span> {<\/span>
                    \"endorsingPeer\"<\/span>:<\/span> true<\/span>,<\/span>
                    \"chaincodeQuery\"<\/span>:<\/span> true<\/span>,<\/span>
                    \"ledgerQuery\"<\/span>:<\/span> true<\/span>,<\/span>
                    \"eventSource\"<\/span>:<\/span> true<\/span>
                }<\/span>,<\/span>
                \"peer0.org2.example.com\"<\/span>:<\/span> {<\/span>
                    \"endorsingPeer\"<\/span>:<\/span> true<\/span>,<\/span>
                    \"chaincodeQuery\"<\/span>:<\/span> true<\/span>,<\/span>
                    \"ledgerQuery\"<\/span>:<\/span> true<\/span>,<\/span>
                    \"eventSource\"<\/span>:<\/span> true<\/span>
                }<\/span>
            }<\/span>
        }<\/span>
    }<\/span>,<\/span>
    \"organizations\"<\/span>:<\/span> {<\/span>
        \"Org1\"<\/span>:<\/span> {<\/span>
            \"mspid\"<\/span>:<\/span> \"Org1MSP\"<\/span>,<\/span>
            \"peers\"<\/span>:<\/span> [<\/span>
                \"peer0.org1.example.com\"<\/span>
            ]<\/span>,<\/span>
            \"certificateAuthorities\"<\/span>:<\/span> [<\/span>
                \"ca-org1\"<\/span>
            ]<\/span>,<\/span>
            \"adminPrivateKeyPEM\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org1.example.com\/users\/Admin@org1.example.com\/msp\/keystore\/priv_sk\"<\/span>
            }<\/span>,<\/span>
            \"signedCertPEM\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org1.example.com\/users\/Admin@org1.example.com\/msp\/signcerts\/Admin@org1.example.com-cert.pem\"<\/span>
            }<\/span>
        }<\/span>,<\/span>
        \"Org2\"<\/span>:<\/span> {<\/span>
            \"mspid\"<\/span>:<\/span> \"Org2MSP\"<\/span>,<\/span>
            \"peers\"<\/span>:<\/span> [<\/span>
                \"peer0.org2.example.com\"<\/span>
            ]<\/span>,<\/span>
            \"certificateAuthorities\"<\/span>:<\/span> [<\/span>
                \"ca-org2\"<\/span>
            ]<\/span>,<\/span>
            \"adminPrivateKeyPEM\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org2.example.com\/users\/Admin@org2.example.com\/msp\/keystore\/priv_sk\"<\/span>
            }<\/span>,<\/span>
            \"signedCertPEM\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org2.example.com\/users\/Admin@org2.example.com\/msp\/signcerts\/Admin@org2.example.com-cert.pem\"<\/span>
            }<\/span>
        }<\/span>
    }<\/span>,<\/span>
    \"orderers\"<\/span>:<\/span> {<\/span>
        \"orderer.example.com\"<\/span>:<\/span> {<\/span>
            \"url\"<\/span>:<\/span> \"grpcs:\/\/192.168.28.134:7050\"<\/span>,<\/span>
            \"mspid\"<\/span>:<\/span> \"OrdererMSP\"<\/span>,<\/span>
            \"grpcOptions\"<\/span>:<\/span> {<\/span>
                \"ssl-target-name-override\"<\/span>:<\/span> \"orderer.example.com\"<\/span>,<\/span>
                \"hostnameOverride\"<\/span>:<\/span> \"orderer.example.com\"<\/span>
            }<\/span>,<\/span>
            \"tlsCACerts\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/ordererOrganizations\/example.com\/orderers\/orderer.example.com\/tls\/ca.crt\"<\/span>
            }<\/span>,<\/span>
            \"adminPrivateKeyPEM\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/ordererOrganizations\/example.com\/users\/Admin@example.com\/msp\/keystore\/priv_sk\"<\/span>
            }<\/span>,<\/span>
            \"signedCertPEM\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/ordererOrganizations\/example.com\/users\/Admin@example.com\/msp\/signcerts\/Admin@example.com-cert.pem\"<\/span>
            }<\/span>
        }<\/span>
    }<\/span>,<\/span>
    \"peers\"<\/span>:<\/span> {<\/span>
        \"peer0.org1.example.com\"<\/span>:<\/span> {<\/span>
            \"url\"<\/span>:<\/span> \"grpcs:\/\/192.168.28.134:7051\"<\/span>,<\/span>
            \"grpcOptions\"<\/span>:<\/span> {<\/span>
                \"ssl-target-name-override\"<\/span>:<\/span> \"peer0.org1.example.com\"<\/span>,<\/span>
                \"hostnameOverride\"<\/span>:<\/span> \"peer0.org1.example.com\"<\/span>,<\/span>
                \"request-timeout\"<\/span>:<\/span> 120001<\/span>
            }<\/span>,<\/span>
            \"tlsCACerts\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org1.example.com\/peers\/peer0.org1.example.com\/tls\/ca.crt\"<\/span>
            }<\/span>
        }<\/span>,<\/span>
        \"peer0.org2.example.com\"<\/span>:<\/span> {<\/span>
            \"url\"<\/span>:<\/span> \"grpcs:\/\/192.168.28.134:9051\"<\/span>,<\/span>
            \"grpcOptions\"<\/span>:<\/span> {<\/span>
                \"ssl-target-name-override\"<\/span>:<\/span> \"peer0.org2.example.com\"<\/span>,<\/span>
                \"hostnameOverride\"<\/span>:<\/span> \"peer0.org2.example.com\"<\/span>,<\/span>
                \"request-timeout\"<\/span>:<\/span> 120001<\/span>
            }<\/span>,<\/span>
            \"tlsCACerts\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org2.example.com\/peers\/peer0.org2.example.com\/tls\/ca.crt\"<\/span>
            }<\/span>
        }<\/span>
    }<\/span>,<\/span>
    \"certificateAuthorities\"<\/span>:<\/span> {<\/span>
        \"ca-org1\"<\/span>:<\/span> {<\/span>
            \"url\"<\/span>:<\/span> \"https:\/\/192.168.28.134:7054\"<\/span>,<\/span>
            \"grpcOptions\"<\/span>:<\/span> {<\/span>
                \"verify\"<\/span>:<\/span> true<\/span>
            }<\/span>,<\/span>
            \"tlsCACerts\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org1.example.com\/ca\/ca.org1.example.com-cert.pem\"<\/span>
            }<\/span>,<\/span>
            \"registrar\"<\/span>:<\/span> [<\/span>
                {<\/span>
                    \"enrollId\"<\/span>:<\/span> \"admin\"<\/span>,<\/span>
                    \"enrollSecret\"<\/span>:<\/span> \"adminpw\"<\/span>
                }<\/span>
            ]<\/span>
        }<\/span>,<\/span>
        \"ca-org2\"<\/span>:<\/span> {<\/span>
            \"url\"<\/span>:<\/span> \"https:\/\/192.168.28.134:8054\"<\/span>,<\/span>
            \"grpcOptions\"<\/span>:<\/span> {<\/span>
                \"verify\"<\/span>:<\/span> true<\/span>
            }<\/span>,<\/span>
            \"tlsCACerts\"<\/span>:<\/span> {<\/span>
                \"path\"<\/span>:<\/span> \"src\/main\/resources\/crypto-config\/peerOrganizations\/org2.example.com\/ca\/ca.org2.example.com-cert.pem\"<\/span>
            }<\/span>,<\/span>
            \"registrar\"<\/span>:<\/span> [<\/span>
                {<\/span>
                    \"enrollId\"<\/span>:<\/span> \"admin\"<\/span>,<\/span>
                    \"enrollSecret\"<\/span>:<\/span> \"adminpw\"<\/span>
                }<\/span>
            ]<\/span>
        }<\/span>
    }<\/span>
}<\/span>
<\/pre>\n
\u9700\u6309\u5b9e\u9645\u60c5\u51b5\u4fee\u6539url\u4e2d\u7684\u5730\u5740\uff0c\u5185\u5bb9\u4e2d\u5206\u522b\u5305\u542b\u4e86channels\u3001organizations\u3001orderers\u3001peers\u3001ca \u7684\u914d\u7f6e<\/p>\n
3.3. SpringBoot\u914d\u7f6e<\/h3>\n
\u5728 application.yml \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff0c\u7528\u4e8e\u8bbf\u95ee\u7f51\u5173\u7684\u76f8\u5173\u914d\u7f6e\uff1a<\/p>\n
fabric:<\/span>
  # wallet\u6587\u4ef6\u5939\u8def\u5f84(<\/span>\u81ea\u52a8\u521b\u5efa)<\/span>
  walletDirectory:<\/span> wallet
  # \u7f51\u7edc\u914d\u7f6e\u6587\u4ef6\u8def\u5f84
  networkConfigPath:<\/span> connection.json<\/span>
  # \u7528\u6237\u8bc1\u4e66\u8def\u5f84
  certificatePath:<\/span> crypto-<\/span>config\/<\/span>peerOrganizations\/<\/span>org1.example<\/span>.com<\/span>\/<\/span>users\/<\/span>User1@org1.example<\/span>.com<\/span>\/<\/span>msp\/<\/span>signcerts\/<\/span>User1@org1.example<\/span>.com<\/span>-<\/span>cert.pem<\/span>
  # \u7528\u6237\u79c1\u94a5\u8def\u5f84
  privateKeyPath:<\/span> crypto-<\/span>config\/<\/span>peerOrganizations\/<\/span>org1.example<\/span>.com<\/span>\/<\/span>users\/<\/span>User1@org1.example<\/span>.com<\/span>\/<\/span>msp\/<\/span>keystore\/<\/span>priv_sk
  # \u8bbf\u95ee\u7684\u7ec4\u7ec7\u540d
  mspid:<\/span> Org1MSP
  # \u7528\u6237\u540d
  username:<\/span> user1
  # \u901a\u9053\u540d\u5b57
  channelName:<\/span> mychannel
  # \u94fe\u7801\u540d\u5b57
  contractName:<\/span> mycc
<\/pre>\n
\u56db\u3001\u8fde\u63a5\u5408\u7ea6<\/h2>\n
\u5206\u522b\u6784\u5efa\u7f51\u5173\u3001\u901a\u9053\u548c\u5408\u7ea6\u7684Bean\u5bf9\u8c61\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\/**<\/span>
 * \u8fde\u63a5\u7f51\u5173<\/span>
 *\/<\/span>
@Bean
public Gateway connectGateway(<\/span>)<\/span> throws IOException,<\/span> InvalidKeyException,<\/span> CertificateException {<\/span>
  \/\/<\/span>\u4f7f\u7528org1\u4e2d\u7684user1\u521d\u59cb\u5316\u4e00\u4e2a\u7f51\u5173wallet\u8d26\u6237\u7528\u4e8e\u8fde\u63a5\u7f51\u7edc
  Wallet wallet =<\/span> Wallets.newFileSystemWallet<\/span>(<\/span>Paths.get<\/span>(<\/span>this.walletDirectory<\/span>)<\/span>)<\/span>;<\/span>
  X509Certificate certificate =<\/span> readX509Certificate(<\/span>Paths.get<\/span>(<\/span>this.certificatePath<\/span>)<\/span>)<\/span>;<\/span>
  PrivateKey privateKey =<\/span> getPrivateKey(<\/span>Paths.get<\/span>(<\/span>this.privateKeyPath<\/span>)<\/span>)<\/span>;<\/span>
  wallet.put<\/span>(<\/span>username,<\/span> Identities.newX509Identity<\/span>(<\/span>this.mspid<\/span>,<\/span> certificate,<\/span> privateKey)<\/span>)<\/span>;<\/span>

  \/\/<\/span>\u6839\u636econnection.json<\/span> \u83b7\u53d6Fabric\u7f51\u7edc\u8fde\u63a5\u5bf9\u8c61
  Gateway.Builder<\/span> builder =<\/span> Gateway.createBuilder<\/span>(<\/span>)<\/span>
      .identity<\/span>(<\/span>wallet,<\/span> username)<\/span>
      .networkConfig<\/span>(<\/span>Paths.get<\/span>(<\/span>this.networkConfigPath<\/span>)<\/span>)<\/span>;<\/span>

  \/\/<\/span>\u8fde\u63a5\u7f51\u5173
  return builder.connect<\/span>(<\/span>)<\/span>;<\/span>
}<\/span>

\/**<\/span>
 * \u83b7\u53d6\u901a\u9053<\/span>
 *\/<\/span>
@Bean
public Network network(<\/span>Gateway gateway)<\/span> {<\/span>
  return gateway.getNetwork<\/span>(<\/span>this.channelName<\/span>)<\/span>;<\/span>
}<\/span>

\/**<\/span>
 * \u83b7\u53d6\u5408\u7ea6<\/span>
 *\/<\/span>
@Bean
public Contract contract(<\/span>Network network)<\/span> {<\/span>
  return network.getContract<\/span>(<\/span>this.contractName<\/span>)<\/span>;<\/span>
}<\/span>
<\/pre>\n
\u4e94\u3001\u5408\u7ea6\u8c03\u7528<\/h2>\n
\u521b\u5efacontroller\u7c7b\uff0c\u6ce8\u5165Contract\u5bf9\u8c61\u8c03\u7528\u5408\u7ea6\u65b9\u6cd5\uff1a<\/p>\n
@Resource
private Contract contract;<\/span>

@Resource
private Network network;<\/span>

@GetMapping(<\/span>\"\/getUser\"<\/span>)<\/span>
public String getUser(<\/span>String userId)<\/span> throws ContractException {<\/span>
  byte[<\/span>]<\/span> queryAResultBefore =<\/span> contract.evaluateTransaction<\/span>(<\/span>\"getUser\"<\/span>,<\/span>userId)<\/span>;<\/span>
  return new String(<\/span>queryAResultBefore,<\/span> StandardCharsets.UTF_8<\/span>)<\/span>;<\/span>
}<\/span>

@GetMapping(<\/span>\"\/addUser\"<\/span>)<\/span>
public String addUser(<\/span>String userId,<\/span> String userName,<\/span> String money)<\/span> throws ContractException,<\/span> InterruptedException,<\/span> TimeoutException {<\/span>
  byte[<\/span>]<\/span> invokeResult =<\/span> contract.createTransaction<\/span>(<\/span>\"addUser\"<\/span>)<\/span>
      .setEndorsingPeers<\/span>(<\/span>network.getChannel<\/span>(<\/span>)<\/span>.getPeers<\/span>(<\/span>EnumSet.of<\/span>(<\/span>Peer.PeerRole<\/span>.ENDORSING_PEER<\/span>)<\/span>)<\/span>)<\/span>
      .submit<\/span>(<\/span>userId,<\/span> userName,<\/span> money)<\/span>;<\/span>
  String txId =<\/span> new String(<\/span>invokeResult,<\/span> StandardCharsets.UTF_8<\/span>)<\/span>;<\/span>
  return txId;<\/span>
}<\/span>
<\/pre>\n
\u516d\u3001\u6d4b\u8bd5\u63a5\u53e3<\/h2>\n
\u8c03\u7528\u63a5\u53e3 getUser\uff1a<\/p>\n
\u200b\u200bhttp:\/\/127.0.0.1:9001\/getUser?userId=1\u200b\u200b<\/p>\n
\u8fd4\u56de\uff1a<\/p>\n
{<\/span>
  \"money\"<\/span>:<\/span> 300<\/span>,<\/span>
  \"name\"<\/span>:<\/span> \"zlt\"<\/span>,<\/span>
  \"userId\"<\/span>:<\/span> \"1\"<\/span>
}<\/span>
<\/pre>\n
\u8c03\u7528\u63a5\u53e3 addUser\uff1a<\/p>\n
\u200b\u200bhttp:\/\/127.0.0.1:9001\/addUser?userId=6&userName=test6&money=600\u200b\u200b<\/p>\n
\u8fd4\u56de\uff1a<\/p>\n
2<\/span>ae291bb6a366b5ba01ad49e4237da8def9e9828cc2c982e8c49d4b763af0157
<\/pre>\n
\u4e03\u3001\u4ee3\u7801\u4e0b\u8f7d<\/h2>\n
gitee\uff1ahttps:\/\/gitee.com\/zlt2000\/my-fabric-application-java<\/p>\n
github\uff1ahttps:\/\/github.com\/zlt2000\/my-fabric-application-java<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
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