# Demo_egg

**Repository Path**: xuchaoxin1375/demo_egg

## Basic Information

- **Project Name**: Demo_egg
- **Description**: demo of egg
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-11-27
- **Last Updated**: 2021-12-18

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# this repository is a collection repository of egg.js demo projects

## folders for different projects

- if you want to create a new project ,you'd better to create a new directory for the new project to be create by `yarn create egg  --type=simple`

---

[ Egg.js环境搭建和HelloWorld](http://jspang.com/detailed?id=79#toc33)直接开始操作，来安装Egg.js的开发环境和编写第一个 `HelloWorld`。

以管理方式打开Windows中的 `PowerShell`（如果不以管理员方式打开，没办新建目录），选择要创建目录的位置。然后创建目录。

```jsx
mkdir egg      // 创建egg目录
cd egg         // 进入egg目录
```

使用yarn命令来创建一个egg项目，命令如下。

```jsx
yarn create egg  --type=simple
```

如果你没安装yarn命令，可以使用下面这条命令进行安装。

```jsx
npm install -g yarn 
```

这时候yarn会给我们去远程拉去egg.js框架和生成项目。其中有几项需要我们配置：项目名称、描述和作者。如果不愿意配置，也可以直接略过。

创建完成后，我们需要安装相关的项目依赖。

```jsx
yarn install
```

安装完成后，我们用 `yarn dev`开启项目，开启后会告诉我们 访问地址为 `http://127.0.0.1:7001`。

打开浏览器，输入地址，就会在页面中显示出 `hi.egg`。

## yarn or npm?

- I would like use `yarn` to build and develop my projects.
-

### start your project server and show in browser quickly

## failures and error

- start(dev) the project error:
  - it may be your project contained error code (espacially functoins with error spelling or type parameter ,so the code running uncorrectly and throw error )
    - most cases is that the error generate by the error spelling in the path string(router string paramter),unfortunately, the IDE wouldn't tell you these mose common error!
  - so be carefully to write your codes

* if your find you failed to open a curtain page in browser,than use you first to check your terminal, to learn about whether it  is the project code contains uncorrenct code or configs,than to do further operations.
* wrong spelling or punctuation-mark:

  * ![img](https://gitee.com/xuchaoxin1375/pictures/raw/main/images/20211204162843.png)
  * `.`& `,`
  * `export` &'require`
  * `request`&`reqeust`
  * `use` & `user`
  * `and so on...`

  ---

  ### database configuration and errors


  * you'd better keep the cloud server with the same configuration of datebase with local development environment.
  * what's more ,you need to create the corresponding datebase in your cloud(deploying) environment ,if your code do not have related mechanism to solve the unexpected cases!

## dependencies & package.json

- you can should install(by `yarn` or `npm`) in the project directory
- check the plugins installation information int the `egg` project root directory  in the `package.json `file :`dependencies{}`
-

## for git clone to deploy(fork to run each project )

- you need to run `yarn install` or `npm install ` to install the dependencies yourself manually (beacause the `.gitignore` will ignore the `node_modules` to push to the remote git repository)