如何将含已有Git仓库的MERN应用client与server推送到GitHub？

云原生阿岚

2026-5-7

Got it, let's fix this step by step. You've got a MERN app with separate server and client folders, and client already has its own .git folder from running create-react-app. Here are two reliable approaches to get both folders pushed to a single GitHub repository:

方法1：将Client作为主仓库的子目录（最常用、简单）

This is the go-to solution if you don't need to keep the client folder as a separate standalone repo.

First, navigate to your root project folder (the one that contains both server and client). Initialize a new Git repo here:
```
git init
```
Next, head into the client folder and delete its existing local Git repo (warning: make sure any uncommitted changes in client are either committed locally first or backed up—this will erase its Git history):
```
cd client
# For macOS/Linux
rm -rf .git
# For Windows Command Prompt
rmdir /s .git
# For Windows PowerShell
Remove-Item -Recurse -Force .git
```
Return to the root folder, stage all files from both server and client:
```
cd ..
git add .
```

Commit the initial changes:

git commit -m "Initial commit: Add full MERN app (server + client)"

Link your local repo to your GitHub remote repo (replace the URL with your actual GitHub repo address):
```
git remote add origin https://github.com/your-username/your-mern-repo.git
```
Push everything to GitHub:
```
git push -u origin main
```

方法2：使用Git Submodules（保留Client独立仓库）

Use this if you want to maintain the client as a separate standalone repo while still including it in your main MERN repo.

First, make sure you've already pushed the client folder's code to its own GitHub repo (create a new repo on GitHub, then run git remote add origin and git push from inside the client folder first).
Navigate to your root project folder, initialize a new Git repo:
```
git init
```
Add the client repo as a submodule (replace the URL with your client repo's GitHub address):
```
git submodule add https://github.com/your-username/your-client-repo.git client
```
Stage the server folder files:
```
git add server/
```

Commit the changes to your main repo:

git commit -m "Add server code and link client as submodule"

Link your main repo to its GitHub remote:

git remote add origin https://github.com/your-username/your-main-mern-repo.git

Push the main repo to GitHub:
```
git push -u origin main
```
Note: When cloning this main repo later, use git clone --recurse-submodules to pull both the main code and the client submodule. If you already cloned without that, run git submodule update --init afterward.

内容的提问来源于stack exchange，提问作者user2371290