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How to import this project into eclipse
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1. Open your STS
2. go to File->import
3. select "Existing Maven Projects" option from the tree list; you can find this option under Maven Node and click next
4. click the Browse button  to select the root directory
5. locate your extracted project directory (project directory will contain pom.xml) and click ok and finish.

P.S: Plese make sure your STS is configured correctly for Maven and Tomcat as mentioned in the chapter 1