1、提交根目錄下，進入git bash中輸入”touch .gitignore” 新建一個該該字尾的檔案。

2、檔案中輸入要忽略的檔案或目錄資訊

##ignore this file##
/target/ 

.classpath
.project
.settings      
 ##filter databfile、sln file##
*.mdb  
*.ldb  
*.sln    
##class file##
*.com  
*.class  
*.dll  
*.exe  
*.o  
*.so  
# compression file
*.7z  
*.dmg  
*.gz
 
  
*.iso  
*.jar  
*.rar  
*.tar  
*.zip  
*.via
*.tmp
*.err 
# OS generated files #  
.DS_Store  
.DS_Store?  
._*  
.Spotlight-V100  
.Trashes  
Icon?  
ehthumbs.db  
Thumbs.db