Springmvc @PathVariable的用法解析

    @RequestMapping(value = "/auth1/{uuid}/xxx", method = RequestMethod.GET)
    public void imageCode1(@PathVariable (value = "uuid") String uuid) {
        logger.info(uuid);
    }

    public static void main(String[] args) {
        AntPathMatcher matcher = new AntPathMatcher();
        System.out.println(matcher.match("{uuid}", "xxxx"));
        Map<String, String> result = matcher.extractUriTemplateVariables("{uuid}", "xxx");
        System.out.println(result);
    }

    @RequestMapping(value = "/auth1/{uuid}/xxx", method = RequestMethod.GET)
    public void imageCode1(@PathVariable String uuid) {
        logger.info(uuid);
    }

    public static void main(String[] args) throws Exception {
        BeanInfo beanInfo = Introspector.getBeanInfo(A.class);
        MethodDescriptor[] methodDescriptors = beanInfo.getMethodDescriptors();
        for (MethodDescriptor methodDescriptor : methodDescriptors) {
            System.out.println("method:" + methodDescriptor.getName());
            ParameterDescriptor[] params = methodDescriptor.getParameterDescriptors();
            if (params != null) {
                for (ParameterDescriptor param : params) {
                    System.out.println("param:" + param.getName());
                }
            }
        }
        Method[] methods = A.class.getMethods();
        for (Method method : methods) {
            if (method.getName().equals("hello")) {
                LocalVariableTableParameterNameDiscoverer discoverer =
                        new LocalVariableTableParameterNameDiscoverer();
                String[] methodNames = discoverer.getParameterNames(method);
                for (String methodName : methodNames) {
                    System.out.println(methodName);
                }
            }
        }
    }

<a href="<c:url value="/actions/article/readArticle/${article.id}"/> "
                                                 target="_blank">${article.title}</a>

public static final String URL_ARTICLE_READ = "article/readArticle/{articleId}";
    /**
     * 去文章详情页面
     * 根据URL路径中指定的文章ID号，去获取制定文章的内容
     *
     * @param articleId 指定的文章的ID号
     * @return          获取此文章的数据，并去文章详情页面
     */
    @RequestMapping(value = {URL_ARTICLE_READ} )
    public ModelAndView readArticle(@PathVariable("articleId") Long articleId){
        LOGGER.info("enter article detail page, articleId = {}",articleId);
        final Article article = articleService.getArticleById(articleId);
 ...
    }