Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

Stella981
• 阅读 920

其实该方法也基本适用于Ubuntu系统，区别在于CentOS用yum下载工具包，Ubuntu用apt-get下载工具包，用Ubuntu的小伙伴可灵活使用该方法

安装go语言环境到/usr/local下

wget链接获取来源链接为https://studygolang.com/dl，如果以下wget命令失效请到以上网站获取或下载
打开终端，输入指令 

sudo wget -P /usr/local https://studygolang.com/dl/golang/go1.15.linux-amd64.tar.gz
cd /usr/local
sudo tar -zxvf go1.15.linux-amd64.tar.gz

添加环境变量

vi ~/.bashrc

将以下内容复制到bashrc文件中，按“I”插入，插入完成后按“ESC”退出插入，输出“：wq！”保存退出，如下图所示

export GOROOT=/usr/local/go
export PATH=$PATH:$GOROOT/bin
export GOPATH=$HOME/go

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

source ~/.bashrc

验证go是否安装成功

go version

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

安装docker

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
sudo yum -y install docker-ce

启动Docker-ce

sudo systemctl start docker
sudo systemctl enable docker

将当前用户添加到docker组中

sudo usermod -aG docker $USER

检查docker是否安装成功

docker -v

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

安装docker-compose

curl -L https://get.daocloud.io/docker/compose/releases/download/1.12.0/docker-compose-`uname -s`-`uname -m` > ~/docker-compose
sudo mv ~/docker-compose /usr/local/bin/docker-compose 
chmod +x /usr/local/bin/docker-compose

查看docker是否安装成功

docker-compose -v

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

下载Hyperledger Fabric源码

安装git

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo rpm -ivh epel-release-latest-7.noarch.rpm
sudo yum install -y git

下面第一条指令中yujialing为你的用户名

cd /home/yujialing
mkdir go
mkdir go/src
mkdir go/src/github.com
mkdir go/src/github.com/hyperledger
mkdir go/pkg 
mkdir go/bin
cd go/src/github.com/hyperledger
git clone https://github.com/hyperledger/fabric.git

下载速度还是很慢的小伙伴可以Ctrl+C结束以上github克隆进程，试下我的gitee仓库克隆，一样的

git clone https://gitee.com/yu_jialing/fabric.git

下载完成

cd fabric
git checkout release-2.0

编译并拉取docker镜像

sudo yum install gcc
make all

查看docker镜像

sudo docker images

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

下载Fabric的例程

git clone https://github.com/hyperledger/fabric-samples.git
git checkout v2.0.0

将编译后的可执行文件放入fabric-samples中

cd fabric-samples
cp -r build/bin fabric-samples

启动简单的联盟链网络

切换到first-network中的abstore智能合约文件中下载依赖并启动例程联盟链网络

cd first-network/chaincode/abstore/go
cd  ~/go/src/github.com/hyperledger/fabric/fabric-samples/chaincode/fabcar/go
go env -w GOPROXY=https://goproxy.io,direct
go env -w GO111MODULE=on
go mod vendor
cd ../../..
cd first-network/
./byfn.sh up

出现END则表示网络启动成功，网络启动过程详情可以到first-network/scripts文件夹中的script.sh和utils.sh这两个脚本中查看
Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

fabric-gateway-java2.0.0实现与hyperledger联盟链的交互

建立一个maven工程
在pom.xml中导入依赖 

<!-- hyperledger fabric2.0的java依赖 -->
<dependency>
    <groupId>org.hyperledger.fabric</groupId>
    <artifactId>fabric-gateway-java</artifactId>
    <version>2.0.0</version>
</dependency>

回到虚拟机中将执行./byfn.sh up后生成的证书文件（在first-network文件夹下）复制到项目中的resources文件夹下
Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

同时在resources文件夹下新建connection.json文件，用来放连接联盟链网络参数
Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

查看IP地址，connection.json要用到

ifconfig env33

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

connection.json如下，里面涉及的IP地址是你开启区块链网络的主机地址，记得改下面的IP否则连接不上

{
  "name": "basic-network",
  "version": "1.0.0",
  "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/priv_sk"
      },
      "signedCertPEM": {
        "path": "src/main/resources/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts/Admin@org1.example.com-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/priv_sk"
      },
      "signedCertPEM": {
        "path": "src/main/resources/crypto-config/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp/signcerts/Admin@org2.example.com-cert.pem"
      }
    }
  },
  "orderers": {
    "orderer.example.com": {
      "url": "grpcs://192.168.171.xxx: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/priv_sk"
      },
      "signedCertPEM": {
        "path": "src/main/resources/crypto-config/ordererOrganizations/example.com/users/Admin@example.com/msp/signcerts/Admin@example.com-cert.pem"
      }
    }
  },
  "peers": {
    "peer0.org1.example.com": {
      "url": "grpcs://192.168.171.xxx: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://192.168.171.xxx: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://192.168.171.xxx: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://192.168.171.xxx: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"
        }
      ]
    }
  }
}

运行以下代码（随便命名demo.java就行）

package com.scau.amops.hyperledger;

import lombok.extern.slf4j.Slf4j;
import org.hyperledger.fabric.gateway.*;
import org.hyperledger.fabric.gateway.impl.GatewayImpl;
import org.hyperledger.fabric.sdk.Peer;

import java.io.IOException;
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;
/**
 * <p>
 *  超级账本DEMO
 * </p>
 */
@Slf4j
public class demo{
    private Gateway gateway;
    private Network network;
    private static final Path NETWORK_CONFIG_PATH = Paths.get("src", "main", "resources", "connection.json");
    private static final Path credentialPath = Paths.get("src", "main","resources", "crypto-config",
            "peerOrganizations", "org1.example.com", "users", "User1@org1.example.com", "msp");

    public static void main(String[] args) {

        X509Certificate certificate = null;
        PrivateKey privateKey = null;
        Gateway gateway = null;
        try {
            //使用org1中的user1初始化一个网关wallet账户用于连接网络
            Wallet wallet = Wallets.newInMemoryWallet();
            Path certificatePath = credentialPath.resolve(Paths.get("signcerts", "User1@org1.example.com-cert.pem"));
            certificate = readX509Certificate(certificatePath);

            Path privateKeyPath = credentialPath.resolve(Paths.get("keystore", "priv_sk"));
            privateKey = getPrivateKey(privateKeyPath);

            wallet.put("user",Identities.newX509Identity("Org1MSP",certificate,privateKey));

            //根据connection.json 获取Fabric网络连接对象
            GatewayImpl.Builder builder = (GatewayImpl.Builder) Gateway.createBuilder();

            builder.identity(wallet, "user").networkConfig(NETWORK_CONFIG_PATH);
            //连接网关
            gateway = builder.connect();
            //获取mychannel通道
            Network network = gateway.getNetwork("mychannel");
            //获取合约对象
            Contract contract = network.getContract("mycc");
            //查询a的余额
            byte[] queryAResultBefore = contract.evaluateTransaction("query","a");
            System.out.println("交易前："+new String(queryAResultBefore, StandardCharsets.UTF_8));

            // a转50给b
            byte[] invokeResult = contract.createTransaction("invoke")
                    .setEndorsingPeers(network.getChannel().getPeers(EnumSet.of(Peer.PeerRole.ENDORSING_PEER)))
                    .submit("a", "b", "50");
            System.out.println(new String(invokeResult, StandardCharsets.UTF_8));

            //查询交易结果
            byte[] queryAResultAfter = contract.evaluateTransaction("query","a");
            System.out.println("交易后："+new String(queryAResultAfter, 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);
        }
    }
}

运行结果显示
Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric
到虚拟机上查一查，a的余额的确变为40 

docker exec -it cli bash
peer chaincode query -C mychannel -n mycc -c '{"Args":["query", "a"]}'

Centos 7 部署Hyperledger Fabric2.0并尝试使用fabric

成功实现外部与联盟链网络交互

持续更新中！！！
（将更新：修改启动网络的脚本实现其他智能合约的应用）

hyperledgerdockeredg战队centosfabricsudo前端前端
点赞
收藏
评论区
推荐文章
blmius blmius
•
3年前
MySQL:[Err] 1292 - Incorrect datetime value: ‘0000-00-00 00:00:00‘ for column ‘CREATE_TIME‘ at row 1
文章目录问题用navicat导入数据时，报错：原因这是因为当前的MySQL不支持datetime为0的情况。解决修改sql\mode:sql\mode:SQLMode定义了MySQL应支持的SQL语法、数据校验等，这样可以更容易地在不同的环境中使用MySQL。全局s
4061
0
0
helloworld_34035044 helloworld_34035044
•
2年前
皕杰报表之UUID
​在我们用皕杰报表工具设计填报报表时，如何在新增行里自动增加id呢？能新增整数排序id吗？目前可以在新增行里自动增加id，但只能用uuid函数增加UUID编码，不能新增整数排序id。uuid函数说明：获取一个UUID，可以在填报表中用来创建数据ID语法：uuid()或uuid(sep)参数说明：sep布尔值，生成的uuid中是否包含分隔符''，缺省为
1108
0
0
Jacquelyn38 Jacquelyn38
•
3年前
2020年前端实用代码段，为你的工作保驾护航
有空的时候，自己总结了几个代码段，在开发中也经常使用，谢谢。1、使用解构获取json数据let jsonData  id: 1,status: "OK",data: 'a', 'b';let  id, status, data: number   jsonData;console.log(id, status, number )
2355
0
0
Stella981 Stella981
•
3年前
KVM调整cpu和内存
一.修改kvm虚拟机的配置1、virsheditcentos7找到“memory”和“vcpu”标签，将<namecentos7</name<uuid2220a6d1a36a4fbb8523e078b3dfe795</uuid
1321
0
0
Easter79 Easter79
•
3年前
Twitter的分布式自增ID算法snowflake (Java版)
概述分布式系统中，有一些需要使用全局唯一ID的场景，这种时候为了防止ID冲突可以使用36位的UUID，但是UUID有一些缺点，首先他相对比较长，另外UUID一般是无序的。有些时候我们希望能使用一种简单一些的ID，并且希望ID能够按照时间有序生成。而twitter的snowflake解决了这种需求，最初Twitter把存储系统从MySQL迁移
1159
0
0
Wesley13 Wesley13
•
3年前
mysql设置时区
mysql设置时区mysql\_query("SETtime\_zone'8:00'")ordie('时区设置失败，请联系管理员！');中国在东8区所以加8方法二：selectcount(user\_id)asdevice,CONVERT\_TZ(FROM\_UNIXTIME(reg\_time),'08:00','0
1281
0
0
Wesley13 Wesley13
•
3年前
00：Java简单了解
浅谈Java之概述Java是SUN(StanfordUniversityNetwork)，斯坦福大学网络公司)1995年推出的一门高级编程语言。Java是一种面向Internet的编程语言。随着Java技术在web方面的不断成熟，已经成为Web应用程序的首选开发语言。Java是简单易学，完全面向对象，安全可靠，与平台无关的编程语言。
1227
0
0
Stella981 Stella981
•
3年前
Django中Admin中的一些参数配置
设置在列表中显示的字段，id为django模型默认的主键list_display('id','name','sex','profession','email','qq','phone','status','create_time')设置在列表可编辑字段list_editable
1139
0
0
Wesley13 Wesley13
•
3年前
MySQL部分从库上面因为大量的临时表tmp_table造成慢查询
背景描述Time:20190124T00:08:14.70572408:00User@Host:@Id:Schema:sentrymetaLast_errno:0Killed:0Query_time:0.315758Lock_
1482
0
0
Python进阶者 Python进阶者
•
9个月前
Excel中这日期老是出来00：00：00，怎么用Pandas把这个去除
大家好，我是皮皮。一、前言前几天在Python白银交流群【上海新年人】问了一个Pandas数据筛选的问题。问题如下：这日期老是出来00：00：00，怎么把这个去除。二、实现过程后来【论草莓如何成为冻干莓】给了一个思路和代码如下：pd.toexcel之前把这
478
0
0
Stella981
Stella981
Lv1
接天莲叶无穷碧，映日荷花别样红。
文章
1.7w
粉丝
42
获赞
28
热门文章
OpenVPN下载、安装、配置及使用详解
GitHub神器，一个可以白嫖全网无损音乐的神器
OpenWrt 路由器过滤广告的N种方法
Python—执行系统命令的四种方法（os.system、os.popen、commands、subprocess）
SS端加密以及obfs混淆