add travis

Author: realDuYuanChao

.travis.yml

@@ -0,0 +1,8 @@
+language: java
+script:
+  - mvn clean test
+
+notifications:
+  webhooks: https://www.travisbuddy.com/
+  on_success: never
+  on_failure: always

CONTRIBUTING.md

@@ -0,0 +1,23 @@
+# Contributing guidelines
+
+## Before contributing
+
+👏👏 Welcome to [examplehub/SpringBoot](https://github.com/examplehub/Java) ! Before sending your pull requests. Please make sure that you **read the whole guidelines**.
+
+## Contributing
+
+#### How to contribute
+1. Fork the project to your github account & clone locally computer.
+2. Create an upstream remote and sync your local copy before you branch.
+3. Branch for each separate piece of work.
+4. Do the work, write good commit messages, and read the CONTRIBUTING file.
+5. Push to your origin repository.
+6. Create a new PR in GitHub.
+7. Waiting to be review by the maintainers.
+
+#### Code Style
+* Single letter variable names are old school so please avoid them unless their life only spans a few lines.
+* Make sure build success using `mvn clean test` command.
+* Please follow [Java naming conventions](https://www.oracle.com/java/technologies/javase/codeconventions-namingconventions.html).
+
+#### Thanks for your contribution 😊

README.md

@@ -1 +1,9 @@
-# spring-boot
+# Spring Boot Examples
+# Java Programming Examples
+
+[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/examplehub/spring-boot)
+[![Build Status](https://img.shields.io/travis/examplehub/spring-boot.svg?label=Travis%20CI&logo=travis&style=flat-square)](https://travis-ci.com/examplehub/spring-boot) 
+[![LGTM](https://img.shields.io/lgtm/alerts/github/examplehub/spring-boot.svg?label=LGTM&logo=LGTM&style=flat-square)](https://lgtm.com/projects/g/examplehub/spring-boot/alerts) 
+[![contributions welcome](https://img.shields.io/static/v1.svg?label=Contributions&message=Welcome&color=0059b3&style=flat-square)](https://github.com/examplehub/spring-boot/blob/master/CONTRIBUTING.md) 
+[![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg?logo=paypal&style=flat-square)](https://paypal.me/duyuanchao?locale.x=en_US) 
+![](https://img.shields.io/github/repo-size/examplehub/Java.svg?label=Repo%20size&style=flat-square)