获取System基本配置信息

1.获取基本信息

package com.foo.test;

public class App {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String workingDir = System.getProperty("user.dir");
		System.out.println(workingDir);
		
		System.out.println(System.getProperty("java.version"));
		
		System.out.println(System.getProperty("user.home"));
		
		System.out.println(System.getProperty("user.name"));
	}

}

2.执行结果

/leehaut/homework/java/foo
1.6.0_45
/Users/lihao
lihao

3.基本参数如下

/**
     * System properties. The following properties are guaranteed to be defined:
     * <dl>
     * <dt>java.version		<dd>Java version number
     * <dt>java.vendor		<dd>Java vendor specific string
     * <dt>java.vendor.url	<dd>Java vendor URL
     * <dt>java.home		<dd>Java installation directory
     * <dt>java.class.version	<dd>Java class version number
     * <dt>java.class.path	<dd>Java classpath
     * <dt>os.name		<dd>Operating System Name
     * <dt>os.arch		<dd>Operating System Architecture
     * <dt>os.version		<dd>Operating System Version
     * <dt>file.separator	<dd>File separator ("/" on Unix)
     * <dt>path.separator	<dd>Path separator (":" on Unix)
     * <dt>line.separator	<dd>Line separator ("\n" on Unix)
     * <dt>user.name		<dd>User account name
     * <dt>user.home		<dd>User home directory
     * <dt>user.dir		<dd>User's current working directory
     * </dl>
     */