fabric编写第一个合约，Java

1.启动网络

sudo ./network.sh up

2.创建通道

sudo ./network.sh up createChannel

3.在/fabric-samples/chaincode目录下克隆合约

cd ../chaincode/
git clone https://gitee.com/kernelHP/hyperledger-fabric-contract-java-demo.git

在这里插入图片描述

4.在test-network路径下安装合约

cd ../test-network
export PATH=${
   
    
    PWD}/../bin:$PATH
export FABRIC_CFG_PATH=$PWD/../config/

5.创建链码包

peer lifecycle chaincode package hyperledger-fabric-contract-java-demo.tar.gz  --path ../chaincode/hyperledger-fabric-contract-java-demo/ --lang java --label hyperledger-fabric-contract-java-demo_1

查看是否打包成功

ls -ll

6.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=${
   
    
    PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt
export CORE_PEER_MSPCONFIGPATH=${
   
    
    PWD}/organizations/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp
export CORE_PEER_ADDRESS=localhost:7051

peer节点安装链码

peer lifecycle chaincode install hyperledger-fabric-contract-java-demo.tar.gz

这个过程比较慢，不要着急，此时这里显示rror: chaincode install failed with status: 500 - error in simulation: failed to execute transaction 58d14eea40e7aa9f6f5f56c76a3e5cdca7bd9a3525d2d418459461590853926b: error sending: timeout expired while executing transaction 不要着急，超时了，可以等一会儿，可以在另个终端的chaincode/hyperledger-fabric-contract-java-demo目录下看一下下载过程。

docker ps

CONTAINER ID   IMAGE                               COMMAND                  CREATED              STATUS              PORTS                                                                                                                             NAMES
b6939678664a   hyperledger/fabric-javaenv:2.4      "/bin/sh -c ./build.…"   About a minute ago   Up About a minute                                                                                                                                     busy_heyrovsky
395ee1d9145d   hyperledger/fabric-tools:latest     "/bin/bash"              3 minutes ago        Up 3 minutes                                                                                                                                          cli
cea8c8a7cfa2   hyperledger/fabric-peer:latest      "peer node start"        3 minutes ago        Up 3 minutes        0.0.0.0:7051->7051/tcp, :::7051->7051/tcp, 0.0.0.0:9444->9444/tcp, :::9444->9444/tcp                                              peer0.org1.example.com
9ee34fd89972   hyperledger/fabric-orderer:latest   "orderer"                3 minutes ago        Up 3 minutes        0.0.0.0:7050->7050/tcp, :::7050->7050/tcp, 0.0.0.0:7053->7053/tcp, :::7053->7053/tcp, 0.0.0.0:9443->9443/tcp, :::9443->9443/tcp   orderer.example.com
3cbd835434a4   hyperledger/fabric-peer:latest      "peer node start"        3 minutes ago        Up 3 minutes        0.0.0.0:9051->9051/tcp, :::9051->9051/tcp, 7051/tcp, 0.0.0.0:9445->9445/tcp, :::9445->9445/