持续更新springboot相关配置

Posted 2021-03-23 杂货商

@Configuration
public class MyWebMvcConfig implements WebMvcConfigurer {
    //注册了新的访问路径
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/mytestfilder/**").addResourceLocations("classpath:/mytestfilder/");
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        //注册重定向
        registry.addRedirectViewController("访问路径","页面路径");

        //请求转发
        registry.addViewController("访问路径").setViewName("/index");
    }

    //注册格式化
    @Override
    public void addFormatters(FormatterRegistry registry) {
        registry.addFormatter(new Formatter<Date>() {
            @Override
            public String print(Date date, Locale locale) {
                return null;
            }
            /*
            * s 为页面上传过来的转换的时间
            * */
            @Override
            public Date parse(String s, Locale locale) throws ParseException {
                System.out.println(s);
                SimpleDateFormat slf = new SimpleDateFormat("yyyy-MM-dd");
                return slf.parse(s);
            }
        });
    }

    //注册拦截器

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        //创建拦截器对象
        MyHandlerInterceptor mhi = new MyHandlerInterceptor();

        //注册
        List<String> patterm = new ArrayList<>();
        patterm.add("/**");
        List<String> exq = new ArrayList<>();
        exq.add("/user/login.do");
        exq.add("/resources/**");
        registry.addInterceptor(mhi).addPathPatterns(patterm).excludePathPatterns(exq);
    }
}

 

//创建了拦截器  搭配mywebmvc...class中的使用
@Configuration
public class MyHandlerInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("pre");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("post");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("after");
    }
}