A Spring Framework application based on JSP, Spring MVC, Spring Data JPA, Hibernate and JDBC
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Spring PetClinic Sample Application Build Status

Approved by the Spring team, this repo is a fork of the spring-projects/spring-petclinic. It allows the Spring community to maintain a Petclinic version with a plain old Spring Framework configuration and with a 3-layer architecture (i.e. presentation --> service --> repository). The "canonical" implementation is now based on Spring Boot, Thymeleaf and aggregate-oriented domain.

Understanding the Spring Petclinic application with a few diagrams

See the presentation here (2017 update)

Running petclinic locally

	git clone https://github.com/spring-petclinic/spring-framework-petclinic.git
	cd spring-framework-petclinic
	./mvnw tomcat7:run-war

You can then access petclinic here: http://localhost:9966/petclinic/


In case you find a bug/suggested improvement for Spring Petclinic

Our issue tracker is available here: https://github.com/spring-petclinic/spring-framework-petclinic/issues

Database configuration

In its default configuration, Petclinic uses an in-memory database (HSQLDB) which gets populated at startup with data. A similar setups is provided for MySql and PostgreSQL in case a persistent database configuration is needed. To run petclinic locally using persistent database, it is needed to run with profile defined in main pom.xml file.

For MySQL database, it is needed to run with 'MySQL' profile defined in main pom.xml file.

./mvnw tomcat7:run-war -P MySQL

Before do this, would be good to check properties defined in MySQL profile inside pom.xml file.


You may also start a MySql database with docker:

docker run --name mysql-petclinic -e MYSQL_ROOT_PASSWORD=petclinic -e MYSQL_DATABASE=petclinic -p 3306:3306 mysql:5.7.8

For PostgreSQL database, it is needed to run with 'PostgreSQL' profile defined in main pom.xml file.

./mvnw tomcat7:run-war -P PostgreSQL

Before do this, would be good to check properties defined in PostgreSQL profile inside pom.xml file.


You may also start a Postgres database with docker:

docker run --name postgres-petclinic -e POSTGRES_PASSWORD=petclinic -e POSTGRES_DB=petclinic -p 5432:5432 -d postgres:9.6.0

Working with Petclinic in Eclipse/STS


The following items should be installed in your system:

Note: when m2e is available, there is an m2 icon in Help -> About dialog. If m2e is not there, just follow the install process here: http://eclipse.org/m2e/download/


  1. In the command line
git clone https://github.com/spring-petclinic/spring-framework-petclinic.git
  1. Inside Eclipse
File -> Import -> Maven -> Existing Maven project

Looking for something in particular?

Java Config
Java config branch Petclinic uses XML configuration by default. In case you'd like to use Java Config instead, there is a Java Config branch available here
Inside the 'Web' layer Files
Spring MVC - XML integration mvc-view-config.xml
Spring MVC - ContentNegotiatingViewResolver mvc-view-config.xml
JSP custom tags WEB-INF/tags, createOrUpdateOwnerForm.jsp
JavaScript dependencies JavaScript libraries are declared as webjars in the pom.xml
Static resources config Resource mapping in Spring configuration
Static resources usage staticFiles.jsp
Thymeleaf In the late 2016, the original Spring Petclinic has moved from JSP to Thymeleaf.
'Service' and 'Repository' layers Files
Transactions business-config.xml, ClinicServiceImpl.java
Cache tools-config.xml, ClinicServiceImpl.java
Bean Profiles business-config.xml, ClinicServiceJdbcTests.java, PetclinicInitializer.java
JDBC business-config.xml, jdbc folder
JPA business-config.xml, jpa folder
Spring Data JPA business-config.xml, springdatajpa folder

Interaction with other open source projects

One of the best parts about working on the Spring Petclinic application is that we have the opportunity to work in direct contact with many Open Source projects. We found some bugs/suggested improvements on various topics such as Spring, Spring Data, Bean Validation and even Eclipse! In many cases, they've been fixed/implemented in just a few days. Here is a list of them:

Name Issue
Spring JDBC: simplify usage of NamedParameterJdbcTemplate SPR-10256 and SPR-10257
Bean Validation / Hibernate Validator: simplify Maven dependencies and backward compatibility HV-790 and HV-792
Spring Data: provide more flexibility when working with JPQL queries DATAJPA-292
Dandelion: improves the DandelionFilter for Jetty support 113


The issue tracker is the preferred channel for bug reports, features requests and submitting pull requests.

For pull requests, editor preferences are available in the editor config for easy use in common text editors. Read more and download plugins at http://editorconfig.org.