java獲取jdk、系統、服務器等信息

1、獲取jdk信息

System.out.println(System.getProperty("java.version"));     
        System.out.println(System.getProperty("java.vendor"));     
        System.out.println(System.getProperty("java.vendor.url"));     
        System.out.println(System.getProperty("java.home"));     
        System.out.println(System.getProperty("java.vm.specification.version"));     
        System.out.println(System.getProperty("java.vm.specification.vendor"));     
        System.out.println(System.getProperty("java.vm.specification.name"));     
        System.out.println(System.getProperty("java.vm.version"));     
        System.out.println(System.getProperty("java.vm.vendor"));     
        System.out.println(System.getProperty("java.vm.name"));     
        System.out.println(System.getProperty("java.specification.version"));     
        System.out.println(System.getProperty("java.specification.vendor"));     
        System.out.println(System.getProperty("java.specification.name"));     
        System.out.println(System.getProperty("java.class.version"));     
        System.out.println(System.getProperty("java.class.path"));     
        System.out.println(System.getProperty("java.library.path"));     
        System.out.println(System.getProperty("java.io.tmpdir"));     
        System.out.println(System.getProperty("java.compiler"));     
        System.out.println(System.getProperty("java.ext.dirs")); 

2、獲取系統信息

System.out.println(System.getProperty("os.name"));     
        System.out.println(System.getProperty("os.arch"));     
        System.out.println(System.getProperty("os.version"));     
        System.out.println(System.getProperty("file.separator"));     
        System.out.println(System.getProperty("path.separator"));     
        System.out.println(System.getProperty("line.separator"));     
        System.out.println(System.getProperty("user.name"));     
        System.out.println(System.getProperty("user.home"));                     
        System.out.println(System.getProperty("user.dir")); 

3.獲取Tomcat的版本 
<%= application.getServerInfo() %> 

 

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幾個常用Request.ServerVariables的中文 

本文件ip路徑：<%="http://&quot; & request.servervariables("server_name")&request.servervariables("script_name") %> 
本機ip:<%=request.servervariables("remote_addr")%> 
服務器名:<%=Request.ServerVariables("SERVER_NAME")%> 
服務器IP:<%=Request.ServerVariables("LOCAL_ADDR")%> 
服務器端口:<%=Request.ServerVariables("SERVER_PORT")%> 
服務器時間:<%=now%> 
IIS版本:<%=Request.ServerVariables("SERVER_SOFTWARE")%> 
腳本超時時間:<%=Server.ScriptTimeout%> 
本文件路徑:<%=server.mappath(Request.ServerVariables("SCRIPT_NAME"))%> 
服務器CPU數量:<%=Request.ServerVariables("NUMBER_OF_PROCESSORS")%> 
服務器解譯引擎:<%=ScriptEngine & "/"& ScriptEngineMajorVersion&"."&ScriptEngineMinorVersion&"."& ScriptEngineBuildVersion %> 
服務器操作系統:<%=Request.ServerVariables("OS")%> 
支持的文件類型：<%=Request.ServerVariables("HTTP_Accept")%> 
訪問的文件路徑：<%=Request.ServerVariables("HTTP_url")%> 
用戶代理的信息：<%=Request.ServerVariables("HTTP_USER_AGENT")%> 
獲取url中的文件名和傳過來的值:request.ServerVariables("script_name")+"?"+request.ServerVariableS("QUERY_STRING