Java中获取类路径classpath的简单方法(推荐)

<SPAN style="FONT-SIZE: 18px"> 
System.out.println("++++++++++++++++++++++++"); 
String path = System.getProperty("java.class.path"); 
String path2 = FreeMarkerWriter.class.getProtectionDomain().getCodeSource().getLocation().getPath(); 
String path3 = FreeMarkerWriter.class.getProtectionDomain().getCodeSource().getLocation().getFile(); 
String path4 = Thread.currentThread().getContextClassLoader().getResource("").getPath(); 
System.out.println("path 1 = " + path); 
System.out.println("path 2 = " + path2); 
System.out.println("path 3 = " + path3); 
System.out.println("path 4 = " + path4); 
System.out.println("++++++++++++++++++++++++"); 
</SPAN>