Find jar path loaded class in spring controller

FindJarPath.java

@Controller
public class ClassLoaderController {

	/**
	 *
	 * @param clazzName 패키지를 포함한 클래스명 ex) javax.servlet.http.HttpServlet
	 * @return
	 */
	@RequestMapping(value = "/find/jar")
	@ResponseBody
	public String find(@RequestParam String clazzName) {
		String result = "";
		if (StringUtils.isNoneBlank(clazzName)) {
			clazzName = clazzName.replace('.', '/').trim();
			clazzName = "/" + clazzName + ".class";
			java.net.URL classUrl = this.getClass().getResource(clazzName);
			if (classUrl != null) {
				String jarFile = classUrl.getFile();
				int indexNo = jarFile.indexOf("!");
				if (indexNo != -1) {
					result = jarFile.substring(0, indexNo);
				}
			}
		}

		return result;
	}
}