一、调用链码说明(不使用Fabric-CA模块)

1.1 测试代码结构说明

├── pom.xml├── doc                                    # 运行结果图片├── cc                                     # 使用Go实现的链码├── src│   ├── main│   │   ├── java│   │   │   └── ijarvis│   │   │       └── intelliq│   │   │           ├── FabricApp.java     # 初始化Fabric Client对象以及连接组织信息│   │   │           ├── LedgerRecord.java  # 链码中数据结构Bean│   │   │           └── SampleUser.java    # 抽象超级账本中用户信息(实际就是MSP下user文件夹中生成的用户身份文件)│   │   └── resources│   │       └── log4j.xml  │   └── test│       ├── java│       │   └── ijarvis│       │       └── intelliq│       │           └── AppTest.java       # Junit测试代码文件│       └── resources│           ├── crypto-config              # 测试环境下所有证书以及MSP文件集合│           │   ├── ordererOrganizations│           │   │   └── example.com│           │   └── peerOrganizations│           │       ├── org1.example.com│           │       └── org2.example.com│           └── log4j.xml

1.2、 核心代码说明

package ijarvis.intelliq.Fabric;// 省略相关的包导入public class SampleUser implements User {    private final String certFolder;    private final String userName;    public SampleUser(String certFolder, String userName) {        this.certFolder = certFolder;        this.userName = userName;    }    //省略相关Set和Get方法        /**    *     * 重要实现方法，不使用CA需要自己实现如何加载私钥以及证书信息    */    @Override    public Enrollment getEnrollment() {        return new Enrollment() {            @Override            public PrivateKey getKey() {                try {                    return loadPrivateKey(Paths.get(certFolder, "/keystore/ea2db84973c9c54436c47d7e10b9b63420f654ecd7c541fab14646e976294393_sk"));                } catch (Exception e) {                    return null;                }            }            @Override            public String getCert() {                try {                    return new String(Files.readAllBytes(Paths.get(certFolder, "/signcerts/Admin@org1.example.com-cert.pem")));                } catch (Exception e) {                    return "";                }            }        };    }        //测试代码所以固定写死相关的MSPID    @Override    public String getMspId() {        return "Org1MSP";    }    /***     * 实现加载证书服务     */    public static PrivateKey loadPrivateKey(Path fileName) throws IOException, GeneralSecurityException {        PrivateKey key = null;        InputStream is = null;        try {            is = new FileInputStream(fileName.toString());            BufferedReader br = new BufferedReader(new InputStreamReader(is));            StringBuilder builder = new StringBuilder();            boolean inKey = false;            for (String line = br.readLine(); line != null; line = br.readLine()) {                if (!inKey) {                    if (line.startsWith("-----BEGIN ") && line.endsWith(" PRIVATE KEY-----")) {                        inKey = true;                    }                    continue;                } else {                    if (line.startsWith("-----END ") && line.endsWith(" PRIVATE KEY-----")) {                        inKey = false;                        break;                    }                    builder.append(line);                }            }            //            byte[] encoded = DatatypeConverter.parseBase64Binary(builder.toString());            PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(encoded);            KeyFactory kf = KeyFactory.getInstance("ECDSA");            key = kf.generatePrivate(keySpec);        } finally {            is.close();        }        return key;    }}

1.3、其他说明

二、使用CA Server调用链码

user1.setEnrollment(hfcaClient.enroll(user1.getName(), "admin"));

三、链码操作

# 安装链码Shell> peer chaincode install -n epointchaincodecommon   -p epointchaincodecommon -v 0.1# 实例化链码操作Shell> peer chaincode instantiate -o orderer.example.com:7050  -C $CHANNEL_NAME  -c '{"Args":["init"]}' -P "OR  ('Org1MSP.member','Org2MSP.member')" -n epointchaincodecommon -v 0.1# 调用插入KV操作链码Shell> peer chaincode invoke -o orderer.example.com:7050   -C $CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c '{"Args":["addkv","liuwenru","刘文儒"]}'# 调用更新KV操作链码Shell> peer chaincode invoke -o orderer.example.com:7050   -C $CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c '{"Args":["updatekv","liuwenru","刘美丽"]}'# 调用查询KV操作链码Shell> peer chaincode invoke -o orderer.example.com:7050   -C $CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c '{"Args":["query","liuwenru"]}'# 根绝给定的Key查询该账本中所有的历史操作Shell> peer chaincode invoke -o orderer.example.com:7050   -C $CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c '{"Args":["queryhistory","liuwenru"]}'# 调用删除链码操作，注意，此删除操作只会删除账本中当前的值，对于账本中的历史值是不会删除的Shell> peer chaincode invoke -o orderer.example.com:7050   -C $CHANNEL_NAME -n epointchaincodecommon -v 0.1 -c '{"Args":["delkv","liuwenru"]}'

四、调用结果展示

五、学习笔记目录列表