spring boot如何添加拦截器

构建一个spring boot项目。

添加拦截器需要添加一个configuration

@Configuration
@ComponentScan(basePackageClasses = Application.class, useDefaultFilters = true)
public class ServletContextConfig extends WebMvcConfigurationSupport {

为了方便扫描位置，我们可以写一个接口或者入口类Application放置于最外一层的包内，这样就会扫描该类以及子包的类。

 1 resources配置

在没有配置这个类的时候，我们可以在application.ym中修改静态文件位置和匹配方式：

#指定环境配置文件
spring:
 profiles:
  active: dev
 # 修改默认静态路径，默认为
public class LoginInterceptor extends HandlerInterceptorAdapter {
  private Logger logger = LoggerFactory.getLogger(LoginInterceptor.class);

  @Override
  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    String authorization = request.getHeader("Authorization");
    logger.info("The authorization is: {}",authorization);
    return super.preHandle(request, response, handler);
  }
}

写好interceptor之后需要在开始创建的ServletContextConfig中添加这个拦截器：

@Override
  public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(new LoginInterceptor())
 .addPathPatterns("
@Configuration
@ComponentScan(basePackageClasses = Application.class, useDefaultFilters = true)
public class ServletContextConfig extends WebMvcConfigurationSupport {

  static final private String FAVICON_URL = "/favicon.ico";
  static final private String PROPERTY_APP_ENV = "application.environment";
  static final private String PROPERTY_DEFAULT_ENV = "dev";



  
  @Override
  public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/").addResourceLocations("
  @Override
  public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
    configurer.enable();
  }

  @Override
  public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(new LoginInterceptor())
 .addPathPatterns("/**")
 .excludePathPatterns(FAVICON_URL)
    ;
  }

}

github地址：https://github.com/chenxing12/spring-boot-demo

本demo源码：spring-boot-demo_jb51.rar

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。