# HyperledgerFabricContractJava

**Repository Path**: seu-blockchain/hyperledger-fabric-contract-java

## Basic Information

- **Project Name**: HyperledgerFabricContractJava
- **Description**: 该合约支持对数据的查增删改操作，使用java编写。
- **Primary Language**: Java
- **License**: GPL-3.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 4
- **Forks**: 0
- **Created**: 2023-03-22
- **Last Updated**: 2023-03-23

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# HyperledgerFabricContractJava

# 介绍
该合约支持对数据的查增删改操作，使用java编写。

# 使用说明

`git clone https://gitee.com/seu-blockchain/hyperledger-fabric-contract-java.git`


#### 创建链码包

`peer lifecycle chaincode package shuju.tar.gz --path ./hyperledger-fabric-contract-java/ --lang java --label shuju_1`


#### 安装链码包

Org1 peer节点安装链码包
```
export CORE_PEER_TLS_ENABLED=true
export CORE_PEER_LOCALMSPID="Org1MSP"
export CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org1.regulator.com/peers/peer0.org1.regulator.com/tls/ca.crt
export CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org1.regulator.com/users/Admin@org1.regulator.com/msp
export CORE_PEER_ADDRESS=peer0.org1.regulator.com:11051
```

使用peer lifecycle chaincode install命令在peer节点上安装链码

`peer lifecycle chaincode install shuju.tar.gz`

这一步有时比较慢 与网络状况有关

Org2 peer节点安装链码包
```
export CORE_PEER_TLS_ENABLED=true
export CORE_PEER_LOCALMSPID="Org2MSP"
export CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org2.regulator.com/peers/peer0.org2.regulator.com/tls/ca.crt
export CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org2.regulator.com/users/Admin@org2.regulator.com/msp
export CORE_PEER_ADDRESS=peer0.org2.regulator.com:13051
```

使用peer lifecycle chaincode install命令在peer节点上安装链码

`peer lifecycle chaincode install shuju.tar.gz`


#### 查询包ID

`peer lifecycle chaincode queryinstalled`

下面将包ID保存为环境变量，将返回的包ID粘贴到下面命令中。

`export CC_PACKAGE_ID=`

如：
export CC_PACKAGE_ID=shuju_1:36c9afb9bc33088fd64e3388a068f843eb8e9789565848ae33ec7bc742f5b21c

Org1通过链码定义
```
export CORE_PEER_TLS_ENABLED=true
export CORE_PEER_LOCALMSPID="Org1MSP"
export CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org1.regulator.com/peers/peer0.org1.regulator.com/tls/ca.crt
export CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org1.regulator.com/users/Admin@org1.regulator.com/msp
export CORE_PEER_ADDRESS=peer0.org1.regulator.com:11051
```

```
peer lifecycle chaincode approveformyorg -o orderer.regulator.com:11050 --ordererTLSHostnameOverride orderer.regulator.com --channelID regulatorchannel --name shuju --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --tls --cafile /etc/hyperledger/fabric/crypto-config/ordererOrganizations/regulator.com/orderers/orderer.regulator.com/msp/tlscacerts/tlsca.regulator.com-cert.pem
```

Org2通过链码定义
```
export CORE_PEER_TLS_ENABLED=true
export CORE_PEER_LOCALMSPID="Org2MSP"
export CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org2.regulator.com/peers/peer0.org2.regulator.com/tls/ca.crt
export CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/fabric/crypto-config/peerOrganizations/org2.regulator.com/users/Admin@org2.regulator.com/msp
export CORE_PEER_ADDRESS=peer0.org2.regulator.com:13051
```

```
peer lifecycle chaincode approveformyorg -o orderer.regulator.com:11050 --ordererTLSHostnameOverride orderer.regulator.com --channelID regulatorchannel --name shuju --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --tls --cafile /etc/hyperledger/fabric/crypto-config/ordererOrganizations/regulator.com/orderers/orderer.regulator.com/msp/tlscacerts/tlsca.regulator.com-cert.pem

```

#### 把链码提交到通道上

使用 peer lifecycle chaincode checkcommitreadiness 查看通道成员是否已经批准相同的链码定义

`peer lifecycle chaincode checkcommitreadiness --channelID regulatorchannel --name shuju --version 1.0 --sequence 1 --tls --cafile /etc/hyperledger/fabric/crypto-config/ordererOrganizations/example.com/orderers/orderer.regulator.com/msp/tlscacerts/tlsca.regulator.com-cert.pem --output json`

返回两个true

使用 peer lifecycle chaincode commit 将链码定义提交到通道

```
peer lifecycle chaincode commit -o orderer.regulator.com:11050 --ordererTLSHostnameOverride orderer.regulator.com --channelID regulatorchannel --name shuju --version 1.0 --sequence 1 --tls --cafile /etc/hyperledger/fabric/crypto-config/ordererOrganizations/regulator.com/orderers/orderer.regulator.com/msp/tlscacerts/tlsca.regulator.com-cert.pem --peerAddresses peer0.org1.regulator.com:11051 --tlsRootCertFiles /etc/hyperledger/fabric/crypto-config/peerOrganizations/org1.regulator.com/peers/peer0.org1.regulator.com/tls/ca.crt --peerAddresses peer0.org2.regulator.com:13051 --tlsRootCertFiles /etc/hyperledger/fabric/crypto-config/peerOrganizations/org2.regulator.com/peers/peer0.org2.regulator.com/tls/ca.crt
```

使用 peer lifecycle chaincode querycommitted 确定链码定义已经提交给通道

`peer lifecycle chaincode querycommitted --channelID regulatorchannel --name shuju --cafile /etc/hyperledger/fabric/crypto-config/ordererOrganizations/regulator.com/orderers/orderer.regulator.com/msp/tlscacerts/tlsca.regulator.com-cert.pem`


#### 调用链码
支持查询、创建、更新、删除等操作，下以查询为例

查询链码

`peer chaincode query -C regulatorchannel -n shuju -c '{"Args":["queryShuJu","江苏四环生物股份有限公司-2021-03-31"]}'`