go env -w GOPROXY=https://goproxy.io,direct
go env -w GO111MODULE=on
cd hyperleger/fabric-2.3.0/scripts/fabric-samples/fabcar
./startFabric.sh
出现如下则成功
可以选择javascript,typescript,java,go语言与网络交互
我们今天选择nodejs
cd /scripts/fabric-samples/fabcar
cd javascript
npm install
我们按照合约流程依次启动
node enrollAdmin.js
node registerUser.js
node invoke.js
node query.js
org.hyperledger.fabric
fabric-gateway-java
2.2.0
org.hyperledger.fabric-sdk-java
fabric-sdk-java
1.4.7
把hyperledger/fabric/fabric-samples/test-network/organizations下的生成的两个文件夹ordererOrganizations.example.com 和 peerOrganizations 下载下来,放在crypto-config文件夹。
{
"name": "basic-network",
"version": "1.0.0",
"dependencies": {
},
"client": {
"organization": "Org1",
"connection": {
"timeout": {
"peer": {
"endorser": "300"
},
"orderer": "300"
}
}
},
"channels": {
"mychannel": {
"orderers": [
"orderer.example.com"
],
"peers": {
"peer0.org1.example.com": {
"endorsingPeer": true,
"chaincodeQuery": true,
"ledgerQuery": true,
"eventSource": true
},
"peer0.org2.example.com": {
"endorsingPeer": true,
"chaincodeQuery": true,
"ledgerQuery": true,
"eventSource": true
}
}
}
},
"organizations": {
"Org1": {
"mspid": "Org1MSP",
"peers": [
"peer0.org1.example.com"
],
"certificateAuthorities": [
"ca-org1"
],
"adminPrivateKeyPEM": {
"path": "src/main/resources/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore/4ea4ce412621db1527ea875140b0e5c5b0430b480f1555deb6eb4dcb3bce4e55_sk"
},
"signedCertPEM": {
"path": "src/main/resources/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts/cert.pem"
}
},
"Org2": {
"mspid": "Org2MSP",
"peers": [
"peer0.org2.example.com"
],
"certificateAuthorities": [
"ca-org2"
],
"adminPrivateKeyPEM": {
"path": "src/main/resources/crypto-config/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp/keystore/808dee8538bfe6e6c6184a643913c3cb5e32b783a8acd0d05e66522aa2b65d48_sk"
},
"signedCertPEM": {
"path": "src/main/resources/crypto-config/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp/signcerts/cert.pem"
}
}
},
"orderers": {
"orderer.example.com": {
"url": "grpcs://192.168.101.15:7050",
"mspid": "OrdererMSP",
"grpcOptions": {
"ssl-target-name-override": "orderer.example.com",
"hostnameOverride": "orderer.example.com"
},
"tlsCACerts": {
"path": "src/main/resources/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt"
},
"adminPrivateKeyPEM": {
"path": "src/main/resources/crypto-config/ordererOrganizations/example.com/users/Admin@example.com/msp/keystore/ac41182e8d420f1752bb423d9d137b6d24bca0edfb0d312d2ef832cda5fdbfee_sk"
},
"signedCertPEM": {
"path": "src/main/resources/crypto-config/ordererOrganizations/example.com/users/Admin@example.com/msp/signcerts/cert.pem"
}
}
},
"peers": {
"peer0.org1.example.com": {
"url": "grpcs://192.168.101.15:7051",
"grpcOptions": {
"ssl-target-name-override": "peer0.org1.example.com",
"hostnameOverride": "peer0.org1.example.com",
"request-timeout": 120001
},
"tlsCACerts": {
"path": "src/main/resources/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt"
}
},
"peer0.org2.example.com": {
"url": "grpcs://192.168.101.15:9051",
"grpcOptions": {
"ssl-target-name-override": "peer0.org2.example.com",
"hostnameOverride": "peer0.org2.example.com",
"request-timeout": 120001
},
"tlsCACerts": {
"path": "src/main/resources/crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt"
}
}
},
"certificateAuthorities": {
"ca-org1": {
"url": "https://192.168.101.15:7054",
"grpcOptions": {
"verify": true
},
"tlsCACerts": {
"path": "src/main/resources/crypto-config/peerOrganizations/org1.example.com/ca/ca.org1.example.com-cert.pem"
},
"registrar": [
{
"enrollId": "admin",
"enrollSecret": "adminpw"
}
]
},
"ca-org2": {
"url": "https://192.168.101.15:8054",
"grpcOptions": {
"verify": true
},
"tlsCACerts": {
"path": "src/main/resources/crypto-config/peerOrganizations/org2.example.com/ca/ca.org2.example.com-cert.pem"
},
"registrar": [
{
"enrollId": "admin",
"enrollSecret": "adminpw"
}
]
}
}
}
注意:自行更换部署链码的ip,以及各个证书和私钥路径
# 网络配置文件路径
networkConfigPath = src/main/resources/connection.json
# 用户1,机构1证书路径
#certificatePath = src/main/resources/crypto-config/peerOrganizations/org1.example.com/users/User1@org1.example.com/msp/signcerts/cert.pem
# 用户1,机构1私钥路径
#privateKeyPath = src/main/resources/crypto-config/peerOrganizations/org1.example.com/users/User1@org1.example.com/msp/keystore/bd7300f6555aa0845d05bb751e283838c0820b6962cbdfb3dc60399476933fb1_sk
# 用户1,机构2证书路径
certificatePath = src/main/resources/crypto-config/peerOrganizations/org2.example.com/users/User1@org2.example.com/msp/signcerts/cert.pem
# 用户1,机构2证书私钥路径
privateKeyPath = src/main/resources/crypto-config/peerOrganizations/org2.example.com/users/User1@org2.example.com/msp/keystore/340cd3c807db92bc25e89192fa9e556db7ffac1d3aee78443b268ec7b84e8a33_sk
# 通道名字
channelName = mychannel
# 链码名字
contractName = fabcar
package org.example;
import org.hyperledger.fabric.gateway.*;
import org.hyperledger.fabric.sdk.Peer;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.security.InvalidKeyException;
import java.security.PrivateKey;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.EnumSet;
import java.util.Properties;
public class SdkDemo2 {
public static void main(String[] args) {
try {
//获取相应参数
Properties properties = new Properties();
InputStream inputStream = SdkDemo2.class.getResourceAsStream("/fabric.config.properties");
properties.load(inputStream);
String networkConfigPath = properties.getProperty("networkConfigPath");
String channelName = properties.getProperty("channelName");
String contractName = properties.getProperty("contractName");
//使用org1中的user1初始化一个网关wallet账户用于连接网络
String certificatePath = properties.getProperty("certificatePath");
X509Certificate certificate = readX509Certificate(Paths.get(certificatePath));
String privateKeyPath = properties.getProperty("privateKeyPath");
PrivateKey privateKey = getPrivateKey(Paths.get(privateKeyPath));
Wallet wallet = Wallets.newInMemoryWallet();
wallet.put("user1", Identities.newX509Identity("Org2MSP",certificate,privateKey));
//根据connection.json 获取Fabric网络连接对象
Gateway.Builder builder = Gateway.createBuilder()
.identity(wallet, "user1")
.networkConfig(Paths.get(networkConfigPath));
//连接网关
Gateway gateway = builder.connect();
//获取通道
Network network = gateway.getNetwork(channelName);
//获取合约对象
Contract contract = network.getContract(contractName);
//查询现有资产
//注意更换调用链码的具体函数
byte[] queryAllAssets = contract.evaluateTransaction("queryAllCars");
//byte[] queryAllAssets = contract.evaluateTransaction("queryCar","CAR13");
System.out.println("所有资产:"+new String(queryAllAssets, StandardCharsets.UTF_8));
// 增加新的资产
// byte[] invokeResult = contract.createTransaction("createCar")
// .setEndorsingPeers(network.getChannel().getPeers(EnumSet.of(Peer.PeerRole.ENDORSING_PEER)))
// .submit("CAR13", "dazhong", "Accord", "Black", "Tianly");
//System.out.println(new String(invokeResult, StandardCharsets.UTF_8));
byte[] invokeResult = contract.createTransaction("changeCarOwner")
.setEndorsingPeers(network.getChannel().getPeers(EnumSet.of(Peer.PeerRole.ENDORSING_PEER)))
.submit("CAR0", "王三春");
//查询更新后的资产
byte[] queryAllAssetsAfter = contract.evaluateTransaction("queryAllCars");
System.out.println("更新资产:"+new String(queryAllAssetsAfter, StandardCharsets.UTF_8));
} catch (Exception e) {
e.printStackTrace();
}
}
private static X509Certificate readX509Certificate(final Path certificatePath) throws IOException, CertificateException {
try (Reader certificateReader = Files.newBufferedReader(certificatePath, StandardCharsets.UTF_8)) {
return Identities.readX509Certificate(certificateReader);
}
}
private static PrivateKey getPrivateKey(final Path privateKeyPath) throws IOException, InvalidKeyException {
try (Reader privateKeyReader = Files.newBufferedReader(privateKeyPath, StandardCharsets.UTF_8)) {
return Identities.readPrivateKey(privateKeyReader);
}
}
}
结果,成功
参考:
https://blog.csdn.net/jambeau/article/details/107551208
https://blog.csdn.net/klay077/article/details/109189630