下载地址:https://bintray.com/netty/downloads/netty/ 上诉有Alpha1和2两个版本，其中包含： netty-all-5.0.0.Alpha1.jar netty-all-5.0.0.Alpha1-sources.jar netty-all-5.0.0.Alpha1-javadoc.jar netty-example-5.0.0.Alpha1.jar netty-example-5.0.0.Alpha1-sources.jar netty-all-5.0.0.Alpha2.jar netty-all-5.0.0.Alpha2-sources.jar netty-all-5.0.0.Alpha2-javadoc.jar netty-example-5.0.0.Alpha2.jar netty-example-5.0.0.Alpha2-sources.jar 等