ubuntu安装Node

安装

sudo apt update
sudo apt-get install nodejs-legacy nodejs
sudo apt-get install npm

安装n来管理版本

sudo npm install -g n

sudo n lts 长期支持
sudo n stable 稳定版
sudo n latest 最新版
sudo n 8.4.0 直接指定版本下载

切换版本

sudo n
直接键盘上下移动选择你要的版本，回车确认

或者直接指定版本

sudo n 8.10.0

查看版本
```
node -v
npm -v
```
常⻅错误：
- json parse faild }....@sol
- 解决办法:
```
npm cache clean --force
```

win10配置web3环境(PowerShell执行)

若安装web3报错, 注意,部分windows电脑可能要安装的工具

执行如下代码安装window所需要的编译的环境,如果还报错可以尝试安装visual studio
```
npm install --global --production windows-build-tools 
```

git 需要执行如下命令

git config --global url.https://github.com/.insteadOf git://github.com/

上述安装window编译工具的过程中会安装python2,如果window没有配置,我们需要自己手动配置
- 先找到python.exe所在的目录,一般如下
```
C:\Users\w1138\.windows-build-tools\python27\python.exe
```
- 执行如下命令
```
npm config set python "C:\Users\w1138\.windows-build-tools\python27\python.exe"
```

webstorm 开发智能合约需要安装Intellij-Solidity代码提示的插件

truffle 框架使用

安装
```
npm install -g truffle@4.1.12
```

在win10上,在ganache图形界面客户端打开的情况下,在gitbash执行如下命令

w1138@DESKTOP-4ETLG7Q MINGW64 /d/WebstormProjects
$ mkdir truffleInit

w1138@DESKTOP-4ETLG7Q MINGW64 /d/WebstormProjects
$ ls
lottery/  TestDemo/  TransferDemo/  truffleInit/

w1138@DESKTOP-4ETLG7Q MINGW64 /d/WebstormProjects
$ cd truffleInit/

w1138@DESKTOP-4ETLG7Q MINGW64 /d/WebstormProjects/truffleInit
$ ls

w1138@DESKTOP-4ETLG7Q MINGW64 /d/WebstormProjects/truffleInit
$ truffle init

- Preparing to download
√ Preparing to download
- Downloading
× Downloading
Error: Error: Error: Error making request to https://raw.githubusercontent.com/truffle-box/bare-box/master/truffle-box.json. Got error: connect ETIMEDOUT 151.101.72.133:443. Please check the format of the requested resource.
    at Object.unbox (C:\Users\w1138\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\truffle-box\box.js:65:1)
    at process._tickCallback (internal/process/next_tick.js:68:7)
Truffle v5.0.0 (core: 5.0.0)
Node v10.13.0

关闭了ganache图形客户端后,再次执行命令居然ok了

w1138@DESKTOP-4ETLG7Q MINGW64 /d/WebstormProjects/truffleInit
$truffle init

- Preparing to download
√ Preparing to download
- Downloading
√ Downloading
- Cleaning up temporary files
√ Cleaning up temporary files
- Setting up box
√ Setting up box

Unbox successful. Sweet!

Commands:

  Compile:        truffle compile
  Migrate:        truffle migrate
  Test contracts: truffle test

有时候执行如下命令可能会报错,关闭webstorm再重新打开,再次执行又好了
```
truffle migrate --network ganacheNet
```

执行`truffle test'报错如下:

D:\WebstormProjects\truffleinit>truffle test
Could not connect to your Ethereum client. Please check that your Ethereum client:
    - is running
    - is accepting RPC connections (i.e., "--rpc" option is used in geth)
    - is accessible over the network
    - is properly configured in your Truffle configuration file (truffle.js)

原因在于truffle-config.js中配置的development如下:

module.exports = {
    networks: {
        development: {
            host: "127.0.0.1",     // Localhost (default: none)
            port: 8545,            // Standard Ethereum port (default: none)
            network_id: "*",       // Any network (default: none)
        },
    },
 }

默认情况下执行truffle test默认会找到development配置为9545的端口,现在我们配置了8545,覆盖了9545,所以只需把development配置注释就好了

truffle结果react的部署流程

webstorm下的控制台打开一个Local,执行如下命令

D:\WebstormProjects\truffleReact>truffle develop
Truffle Develop started at http://127.0.0.1:9545/

Accounts:
(0) 0x627306090abab3a6e1400e9345bc60c78a8bef57
(1) 0xf17f52151ebef6c7334fad080c5704d77216b732
(2) 0xc5fdf4076b8f3a5357c5e395ab970b5b54098fef
(3) 0x821aea9a577a9b44299b9c15c88cf3087f3b5544
(4) 0x0d1d4e623d10f9fba5db95830f7d3839406c6af2
(5) 0x2932b7a2355d6fecc4b5c0b6bd44cc31df247a2e
(6) 0x2191ef87e392377ec08e7c08eb105ef5448eced5
(7) 0x0f4f2ac550a1b4e2280d04c21cea7ebd822934b5
(8) 0x6330a553fc93768f612722bb8c2ec78ac90b3bbc
(9) 0x5aeda56215b167893e80b4fe645ba6d5bab767de

Private Keys:
(0) c87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3
(1) ae6ae8e5ccbfb04590405997ee2d52d2b330726137b875053c36d94e974d162f
(2) 0dbbe8e4ae425a6d2687f1a7e3ba17bc98c673636790f1b8ad91193c05875ef1
(3) c88b703fb08cbea894b6aeff5a544fb92e78a18e19814cd85da83b71f772aa6c
(4) 388c684f0ba1ef5017716adb5d21a053ea8e90277d0868337519f97bede61418
(5) 659cbb0e2411a44db63778987b1e22153c086a95eb6b18bdf89de078917abc63
(6) 82d052c865f5763aad42add438569276c00d3d88a2d062d36b2bae914d58b8c8
(7) aa3680d5d48a8283413f7a108367c7299ca73f553735860a87b08f39395618b7
(8) 0f62d96d6675f32685bbdb8ac13cda7c23436f63efbb9d07700d8669ff12b7c4
(9) 8d5366123cb560bb606379f90a0bfd4769eecc0557f1b362dcae9012b548b1e5

Mnemonic: candy maple cake sugar pudding cream honey rich smooth crumble sweet treat

⚠️  Important ⚠️  : This mnemonic was created for you by Truffle. It is not secure.
Ensure you do not use it on production blockchains, or else you risk losing funds.

truffle(develop)> compile
Compiling .\contracts\Migrations.sol...
Compiling .\contracts\SimpleStorage.sol...
Writing artifacts to .\client\src\contracts

truffle(develop)> migrate
Using network 'develop'.

Running migration: 1_initial_migration.js
  Deploying Migrations...
  ... 0x69a5a272d91b190d558dec6612b9d51b6953aba0907bdf6779b74a0b4a5f905b
  Migrations: 0x8cdaf0cd259887258bc13a92c0a6da92698644c0
Saving successful migration to network...
  ... 0xd7bc86d31bee32fa3988f1c1eabce403a1b5d570340a3a9cdba53a472ee8c956
Saving artifacts...
Running migration: 2_deploy_contracts.js
  Deploying SimpleStorage...
  ... 0xb5dde5e8fb4ba2ee2680a69cf363bd04944f4bac69342889a2db7b37ad2a16e9

在Local2中执行如下命令
```
npm run start
```

根据页面的metamask提示导入Local生成的助记词,助记词如下:

candy maple cake sugar pudding cream honey rich smooth crumble sweet treat

如果上述步骤部署好之后仍然出错:

bug模式如下图

1.Local中已经退出了develop模式,而Local2中执行了npm run start,会报错

2.报错由于本地http://127.0.0.1:9545服务关闭了

在Local中控制台,执行如下命令,就一条命令migrate --reset

truffle(develop)> migrate --reset
Using network 'develop'.

Running migration: 1_initial_migration.js
  Replacing Migrations...
  ... 0x69a5a272d91b190d558dec6612b9d51b6953aba0907bdf6779b74a0b4a5f905b
  Migrations: 0x8cdaf0cd259887258bc13a92c0a6da92698644c0
Saving successful migration to network...
  ... 0xd7bc86d31bee32fa3988f1c1eabce403a1b5d570340a3a9cdba53a472ee8c956
Saving artifacts...
Running migration: 2_deploy_contracts.js
  Replacing SimpleStorage...
  ... 0xb5dde5e8fb4ba2ee2680a69cf363bd04944f4bac69342889a2db7b37ad2a16e9
  SimpleStorage: 0x345ca3e014aaf5dca488057592ee47305d9b3e10
Saving successful migration to network...
  ... 0xf36163615f41ef7ed8f4a8f192149a0bf633fe1a2398ce001bf44c43dc7bdda0
Saving artifacts...

在页面metamask中创建本地测试网络,先点击步骤1,然后生成本地网络后的结果如下:
按照如下两个步骤重置账号

- 重新刷新一下react页面会出现如下结果,表示成功

GETH安装(以ubuntu为例)

参考文档

http://blog.fens.me/bitcoin-install-geth/

https://github.com/ethereum/go-ethereum/wiki/Installation-Instructions-for-Ubuntu

ubuntu配置go环境

安装geth客户端

git clone https://github.com/ethereum/go-ethereum

sudo apt-get install -y build-essential

cd go-ethereum
make geth

上述的结果会出现如下

Done building.
Run "/root/eth/go-ethereum/build/bin/geth" to launch geth.

把/root/eth/go-ethereum/build/bin/添加到环境变量

root@iZuf6ggrfujyixxwpqrglbZ:~/eth/go-ethereum# export PATH=$PATH:/root/eth/go-ethereum/build/bin

检查是否安装好

root@iZuf6ggrfujyixxwpqrglbZ:~/eth/go-ethereum# geth version
WARN [12-24|10:34:31.376] Sanitizing cache to Go's GC limits       provided=1024 updated=666
Geth
Version: 1.9.0-unstable
Git Commit: 9e9fc87e70accf2b81be8772ab2ab0c914e95666
Architecture: amd64
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.11.4
Operating System: linux
GOPATH=/root/workspace/go
GOROOT=/usr/local/go

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ubuntu安装Node

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GETH安装(以ubuntu为例)