Dependencies

Necessary dependencies

JDK 1.6+ ¹

Default dependencies

use mvn dependency:tree > dep.log command to analysis，Dubbo default depends on the following 3rd party libraries：

[INFO] +- com.alibaba:dubbo:jar:2.5.9-SNAPSHOT:compile
[INFO] |  +- org.springframework:spring-context:jar:4.3.10.RELEASE:compile
[INFO] |  +- org.javassist:javassist:jar:3.21.0-GA:compile
[INFO] |  \- org.jboss.netty:netty:jar:3.2.5.Final:compile

All dependencies here are selected for the default configuration of the Dubbo, which are based on stability and performance considerations.

• javassist.jar ³: if <dubbo:provider proxy="jdk" /> or <dubbo:consumer proxy="jdk" />，or <dubbo:application compiler="jdk" />， is not required.
• spring-context.jar ⁴: If you are using ServiceConfig and ReferenceConfig API calls, is not required.
• netty.jar ⁵: if <dubbo:protocol server="mina"/> or <dubbo:protocol server="grizzly"/>，Then change to mina.jar or grizzly.jar. If <protocol name="rmi"/>， is not required.

Optinal dependencies

These dependencies needs to be added to project manually，when you need them.

• netty-all 4.0.35.Final
• mina: 1.1.7
• grizzly: 2.1.4
• httpclient: 4.5.3
• hessian_lite: 3.2.1-fixed
• fastjson: 1.2.31
• zookeeper: 3.4.9
• jedis: 2.9.0
• xmemcached: 1.3.6
• hessian: 4.0.38
• jetty: 6.1.26
• hibernate-validator: 5.4.1.Final
• zkclient: 0.2
• curator: 2.12.0
• cxf: 3.0.14
• thrift: 0.8.0
• servlet: 3.0 ⁶
• validation-api: 1.1.0.GA ⁶
• jcache: 1.0.0 ⁶
• javax.el: 3.0.1-b08 ⁶
• kryo: 4.0.1
• kryo-serializers: 0.42
• fst: 2.48-jdk-6
• resteasy: 3.0.19.Final
• tomcat-embed-core: 8.0.11
• slf4j: 1.7.25
• log4j: 1.2.16

¹. In theory, Dubbo only depend on JDK, not depend on any 3rd party libs, you can finish logic by useing JDK. ↩

². Log output jar ↩

³. Bytecode generation ↩

⁴. Configuration parsing ↩

⁵. Network transmission ↩

⁶. JAVAEE ↩