因为需要准备Kale项目, 所以在本地的VMware中部署了一套测试环境和持续构建. 其中CI选定的是Jenkins. 我使用的是Centos1804版本,是博文发表时候的最新版本,安装Jenkins直接使用yum来安装,JDK版本为OpenJDK1.8.安装完成后,添加到服务并且设置开机启动,我在本地设置了host,所以不需要使用8080端口访问Jenkins,所以我在/etc/sysconfig/jenkins中修改端口号为80, 之后使用systemctl restart jenkins重启Jenkins,发现重启命令不报错,但是服务运行状态为Active: active (exited).

We will learn how a computer displays information using computer graphics, and how the human perceives that information visually.We will also study the forms of data, including quantitative and non-quantitative data, and how they are properly mapped to the elements of a visualization to be perceived well by the observer.

if socks5(SSR)first, you need to know you local socks5 proxy ip address and port.eg. 127.0.0.1 port 1086then use this command to set proxy

泛型使用处理一些实体（比如 List）的特殊语法增强了 Java 语言，您通常可能希望逐个元素地处理这些实体。举例而言，如果想迭代 ArrayList，可以将 清单 3 中的代码重写为：

https://www.ibm.com/developerworks/cn/java/intro-to-java-course/index.html强烈推荐

20180508152578887758452.pngApplications using the Log4j 2 API will request a Logger with a specific name from the LogManager. The LogManager will locate the appropriate LoggerContext and then obtain the Logger from it. If the Logger must be created it will be associated with the LoggerConfig that contains either a) the same name as the Logger, b) the name of a parent package, or c) the root LoggerConfig. LoggerConfig objects are created from Logger declarations in the configuration. The LoggerConfig is associated with the Appenders that actually deliver the LogEvents.

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在Java中，所有的事件都能由类描述，Java中的异常就是由java.lang包下的异常类描述的。20180507152570136268599.png