2019-11-09 springboot 配置拦截器

基本拦截器
控制器

@RequestMapping(value = "/member_add_pre", method = RequestMethod.GET)
    public String memberAddPre() {
        return "member_add"; // 此处只返回一个路径， 该路径没有设置后缀，后缀默认是*.html
    }

    @PostMapping(value = "/member_add")
    @ResponseBody
    public Object member(Member member){
        return member;
    }

MyInterceptor 配置拦截器

public class MyInterceptor implements HandlerInterceptor {
private Logger log =LoggerFactory.getLogger(MyInterceptor.class);

    @Override
    public boolean preHandle(HttpServletRequest request,
        HttpServletResponse response, Object handler) throws Exception {
        HandlerMethod handlerMethod =(HandlerMethod) handler;
        this.log.info("---------进入拦截器preHandle-----------------"+handlerMethod.getBean().getClass().getName());
        return true;    //如果返回false表示不继续请求，如果返回true表示继续进行请求
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerMethod handlerMethod =(HandlerMethod) handler;
        this.log.info("---------进入拦截器postHandle-----------------"+handlerMethod.getBean().getClass().getName());
        this.log.info("---------进入拦截器postHandle-----------------"+modelAndView);
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        this.log.info("---------拦截处理完毕afterCompletion---------");
    }
}

注册拦截器规则

@Configuration
public class MyWebApplicationConfig implements WebMvcConfigurer  {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new MyInterceptor()).addPathPatterns("/**");
    }
    /**
     *@author 安儿
     *  自定义拦截器注入Bean
     */
    @Bean
    public MyInterceptor MyInterceptor() {
        return new MyInterceptor();
    }
}

基础拦截器的实现结果：

 boot.utils.MyInterceptor                 : ---------进入拦截器preHandle-----------------org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController
boot.utils.MyInterceptor                 : ---------进入拦截器postHandle-----------------org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController
 boot.utils.MyInterceptor                 : ---------进入拦截器postHandle-----------------null
 boot.utils.MyInterceptor                 : ---------拦截处理完毕afterCompletion---------

AOP 方式配置拦截器
aop 服务层

public interface IMemberService {
    public Member get(long mid);
}

aop 服务实现层

@Service
public class MemberServiceImpl implements IMemberService {
    @Override
    public Member get(long mid) {
        Member vo =new Member();
        vo.setMid(mid);
        vo.setName("KING");
        vo.setSalaryl(5000.00);
        return vo;
    }
}

aop Controller 控制层

    @RequestMapping(value = "/member_get",method = RequestMethod.GET)
    @ResponseBody
    public Object get(long mid){
        return this.memberService.get(mid);
    }

aop 拦截器实现结果

o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
o.s.web.servlet.DispatcherServlet        : Completed initialization in 6 ms
boot.utils.MyInterceptor                 : ---------进入拦截器preHandle-----------------boot.controller.MemberController
boot.config.ServiceAspect                : [----------Server—Before -------]执行参数：[1]
boot.config.ServiceAspect                : [----------Server—agter -------]执行参数：boot.vo.Member@25518404
boot.utils.MyInterceptor                 : ---------进入拦截器postHandle-----------------boot.controller.MemberController
 boot.utils.MyInterceptor                 : ---------进入拦截器postHandle-----------------null
 boot.utils.MyInterceptor                 : ---------拦截处理完毕afterCompletion---------

2019-11-09 springboot 配置拦截器

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