# Backend development documentation
## Environmental requirements
* [Mysql ](http://geek.analysys.cn/topic/124 ) (5.5+) : Must be installed
* [JDK ](https://www.oracle.com/technetwork/java/javase/downloads/index.html ) (1.8+) : Must be installed
* [ZooKeeper ](https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper )(3.4.6+) ：Must be installed
* [Maven ](http://maven.apache.org/download.cgi )(3.3+) ：Must be installed
Because the dolphinscheduler-rpc module in EasyScheduler uses Grpc, you need to use Maven to compile the generated classes.
For those who are not familiar with maven, please refer to: [maven in five minutes ](http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html )(3.3+)
http://maven.apache.org/install.html
## Project compilation
After importing the EasyScheduler source code into the development tools such as Idea, first convert to the Maven project (right click and select "Add Framework Support")
* Execute the compile command:
```
mvn -U clean package assembly:assembly -Dmaven.test.skip=true
```
* View directory
After normal compilation, it will generate ./target/dolphinscheduler-{version}/ in the current directory.
```
bin
conf
lib
script
sql
install.sh
```
- Description
```
bin : basic service startup script
conf : project configuration file
lib : the project depends on the jar package, including the various module jars and third-party jars
script : cluster start, stop, and service monitoring start and stop scripts
sql : project depends on sql file
install.sh : one-click deployment script
```
