spring-boot 加入拦截器Interceptor

1.spring boot拦截器默认有

• HandlerInterceptorAdapter
• AbstractHandlerMapping
• UserRoleAuthorizationInterceptor
• LocaleChangeInterceptor
• ThemeChangeInterceptor

2.配置spring mvc的拦截器WebMvcConfigurerAdapter

public class WebAppConfig extends WebMvcConfigurerAdapter

3.实现添加拦截器方法

public void addInterceptors(InterceptorRegistry registry){

}
registry.addInterceptor可以通过此方法添加拦截器, 可以是spring提供的或者自己添加的

4.实例部分

public class WebAppConfig extends WebMvcConfigurerAdapter{	
    public static void main(String[] args) {
		SpringApplication.run(WebAppConfig.class, args);
	} 
    
    /**
     * 配置拦截器
     * @author lance
     * @param registry
     */
    public void addInterceptors(InterceptorRegistry registry) {
    	registry.addInterceptor(new UserSecurityInterceptor()).addPathPatterns("/user/**");
	}
}

UserSecurityInterceptor代码
public class UserSecurityInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request,
			HttpServletResponse response, Object handler) throws Exception {
        
        return true;
	}

	@Override
	public void postHandle(HttpServletRequest request,
			HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
	}

	@Override
	public void afterCompletion(HttpServletRequest request,
			HttpServletResponse response, Object handler, Exception ex)
			throws Exception {

	}

}

5.demo地址
https://github.com/leelance/spring-boot-all/tree/master/spring-boot-samples