Java中获取类路径classpath的简单方法(推荐)

如下所示：

<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> 

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