code: protected String getHostsPath() {
  		String path;
  		if (System.getProperty("os.name").startsWith("Windows")) {
  			path = "c:/windows/System32/drivers/etc/hosts";
  		}
  		else {
  			path = "/etc/hosts";
  		}
  		return path;
  	}
docs: 获取hosts文件路径.
  
  @return hosts文件路径