运行301毕设-初步学习

﹏ヽ暗。殇╰゛Y 2022-06-06 02:17 220阅读 0赞

一、安装软件

1.[JDK JRE安装][JDK JRE]

2.[Tomcat8.5.23][]

3.[MySQL5.7.20][]

4.[Navicat for MySQL][]

5.[MyEclipse2017][]

6.[GO语言环境准备][GO]

7.[Windows安装DockerToolbox][Windows_DockerToolbox]

8.[mRemoteNG下载安装][mRemoteNG]

9.下载Chorm浏览器的POSTMAN插件

![SouthEast][]

二、[Docker部署区块链][Docker]

三、运行

1.MyEclipse打开项目

2.建数据库表

按照代码中NIBC文件夹下“NISBC数据库设计.docx”的要求创建名为nissql的数据库

![Center][]

3.[连接MyEclpise和MySQL][MyEclpise_MySQL]

4.运行区块链环境

(1)打开Docker Quickstart Terminal，输入docker-compose up

![Center 1][]

(2)打开mRemoteNG，双击IP打开链接

![Center 2][]

(3)在mRemoteNG输入docker ps

![Center 3][]

(4)输入docker exec -it my\_vp0\_1 bash

![Center 4][]

(5)退回到.../github.com目录，输入mkdir SaveState新建一个SaveState文件夹

![Center 5][]

(6)进入SaveState，输入vi SaveState.go新建一个SaveState.go文件

![Center 6][]

(7)按一下i键进入编辑模式，复制如下代码进文件（复制，在mRemoteNG鼠标右键）

package main import ( "errors" "fmt" "github.com/hyperledger/fabric/core/chaincode/shim" ) type SaveState2Chaincode struct { } func (t *SaveState2Chaincode) Init(stub shim.ChaincodeStubInterface, function string, args []string) ([]byte, error) { fmt.Printf("Init called with function %s!\n", function) return nil, nil } func (t *SaveState2Chaincode) Invoke(stub shim.ChaincodeStubInterface, function string, args []string) ([]byte, error) { fmt.Printf("Invoke called with function %s!\n", function) var key, value string key = args[0] value = args[1] var err error err = stub.PutState(key, []byte(value)) if err != nil { return nil, err } return nil, nil } func (t *SaveState2Chaincode) Query(stub shim.ChaincodeStubInterface, function string, args []string) ([]byte, error) { fmt.Printf("Query called with function %s!\n", function) var key string key = args[0] valInBytes, err := stub.GetState(key) if err != nil { return nil, errors.New("Failed to get state for " + key) } message := "State for " + key + " = " + string(valInBytes) return []byte(message), nil } func main() { err := shim.Start(new(SaveState2Chaincode)) if err != nil { fmt.Printf("Error starting Save State chaincode: %s", err) } }

Esc，输入:wq保存文件

(8)输入go build ./（注意点之前的空格），此时查看目录下的内容可以看到一个绿色的SaveState文件

![Center 7][]

(9)输入

export CORE\_CHAINCODE\_ID\_NAME=mycc

export CORE\_PEER\_ADDRESS=0.0.0.0:7051

./SaveState &

![Center 8][]  
(10)向Hyperledger服务接口http://192.168.99.100:7050/registrar发送如下REST请求，使用内置的jim用户登录系统

"enrollId": "jim",

"enrollSecret": "6avZQLwcUe9b"

此时区块链环境就运行好了

(11)如果出现了各种奇奇怪怪的问题，关掉mRemoteNG和docker，重新打开docker并输入

docker rm -f $(docker ps -a -q)

docker-compose up

重新做可以解决大部分问题

5.运行MyEclipse

四、功能

1.注册用户AAA、用户BBB

2.用户AAA充值

3.用户AAA给用户BBB投保

4.用户BBB索赔，则用户AAA投保的钱进入用户BBB的账户

[JDK JRE]: http://blog.csdn.net/qq_35134075/article/details/78437946
[Tomcat8.5.23]: http://blog.csdn.net/qq_35134075/article/details/78438189
[MySQL5.7.20]: http://blog.csdn.net/qq_35134075/article/details/78361124
[Navicat for MySQL]: http://blog.csdn.net/qq_35134075/article/details/78360489
[MyEclipse2017]: http://blog.csdn.net/qq_35134075/article/details/78439426
[GO]: http://blog.csdn.net/qq_35134075/article/details/78438763
[Windows_DockerToolbox]: http://blog.csdn.net/qq_35134075/article/details/78439914
[mRemoteNG]: http://blog.csdn.net/qq_35134075/article/details/78446057
[SouthEast]: /images/20220606/b5c9f025db324ccda100433a42fcc849.png
[Docker]: http://blog.csdn.net/qq_35134075/article/details/78446739
[Center]: /images/20220606/fe99718426c44fb6ab203be3e61ceaab.png
[MyEclpise_MySQL]: http://blog.csdn.net/qq_35134075/article/details/78367442
[Center 1]: /images/20220606/96cc67ae104749199e6a1053becaa359.png
[Center 2]: /images/20220606/c4cfd46e71d049178deda9bd9ebdebea.png
[Center 3]: /images/20220606/1bf5a0f1eea846478e3fd214e06f7d0e.png
[Center 4]: /images/20220606/c2e538d181f344d3af4bad5f5cb54fbc.png
[Center 5]: /images/20220606/7eb10dfe51174a8a85c4f863dfda32d6.png
[Center 6]: /images/20220606/9d2c9e93bc944c8e98443139d2a0bffe.png
[Center 7]: /images/20220606/842c893f230b4afeb95319aacb4a186d.png
[Center 8]: /images/20220606/a28457ea3b25450e9b1d541858d49114.png