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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                ### 設置系統屬性 * jvm參數,通常用于設置系統級全局變量值,如配置文件路徑,保證該屬性在程序中任何地方都可訪問; ``` -Duser.displayName=kimi ``` 注意: 1)需要設置的是JVM參數而不是program參數; 2)使用此參數的參數優先級最高,會覆蓋項目中配置的此項; 3)如果value中有空格,則需要用雙引號將該值括起來,如:-Dname="kafka mq"; * 系統設置 ``` System.setProperty("use.workspace", "/stsspace"); properties.put("use.workspace", "robert"); ``` ### 獲取系統屬性 * System.getenv()獲取系統屬性 ``` Map<String, String> env = System.getenv(); { "PATH": "/usr/bin:/bin:/usr/sbin:/sbin", "SHELL": "/bin/bash", "JAVA_MAIN_CLASS_16868": "charpter01.Appliction", "APP_ICON_7487": "../Resources/sts.icns", "USER": "Robert", "TMPDIR": "/var/folders/j9/3zh_xlcn2xd8vcjwl8tdpkdw0000gn/T/", "SSH_AUTH_SOCK": "/private/tmp/com.apple.launchd.vSDQaW0NNQ/Listeners", "XPC_FLAGS": "0x0", "__CF_USER_TEXT_ENCODING": "0x1F5:0x19:0x34", "Apple_PubSub_Socket_Render": "/private/tmp/com.apple.launchd.lxCKCDfnjG/Render", "LOGNAME": "Robert", "XPC_SERVICE_NAME": "org.springsource.sts.ide.37052", "HOME": "/Users/Robert" } ``` * System.getProperties()獲取系統屬性 ``` Properties properties = System.getProperties(); properties.put("use.workspace", "robert"); //設置系統屬性 ```
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