zoukankan      html  css  js  c++  java
  • System Properties 系统环境变量

    系统环境变量:

    KeyMeaning
    "file.separator" Character that separates components of a file path. This is "/" on UNIX and "" on Windows.
    "java.class.path" Path used to find directories and JAR archives containing class files. Elements of the class path are separated by a platform-specific character specified in the path.separator property.
    "java.home" Installation directory for Java Runtime Environment (JRE)
    "java.vendor" JRE vendor name
    "java.vendor.url" JRE vendor URL
    "java.version" JRE version number
    "line.separator" Sequence used by operating system to separate lines in text files
    "os.arch" Operating system architecture
    "os.name" Operating system name
    "os.version" Operating system version
    "path.separator" Path separator character used in java.class.path
    "user.dir" User working directory
    "user.home" User home directory
    "user.name" User account name

    代码举例:

            // 获取当前的工作目录
            String userDir = System.getProperty("user.dir");
            log.info("userDir:[{}]" + userDir);
    //        信息: userDir:[{}]E:workspaceXXX
            
            // 获取所有系统变量
            Properties properties = System.getProperties();
            log.info("properties:【{}】" + properties.toString());

    参考文档:

    https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html

  • 相关阅读:
    C语言文法
    实验一
    词法分析
    py中文词频统计
    py字符串练习
    py画了个国旗
    熟悉常用的Linux操作
    大数据概述
    实验三、 递归下降分析程序实验
    简易c语言LL(1)文法
  • 原文地址:https://www.cnblogs.com/gongxr/p/14262435.html
Copyright © 2011-2022 走看看