SpringBoot——对于在WebMvcConfigurer配置了拦截过滤不生效的问题

1、对于WebMvcConfigurer配置了拦截过滤不生效的问题（我的项目在yml中配置了server:contest-path）

server:
  port: 8081
  max-http-header-size: 100MB
  servlet:
    context-path: /api

2、原来在WebMvcConfigurer实现类中的addInterceptors()方法中所写的内容

@Override
public void addInterceptors(InterceptorRegistry registry) {
     InterceptorRegistration addInterceptor=registry.addInterceptor(apiInterceptor);
     List<String> excludeURLS = new ArrayList<>();
     excludeURLS.add("/api/SendPhoneMessage");
     excludeURLS.add("/api/getValidationCode");
     excludeURLS.add("/api/ProcessRateWebSocket");
     excludeURLS.add("/api/downloadBatchAddTemplate");
     excludeURLS.add("/api/download"); 
     addInterceptor.addPathPatterns("/**").excludePathPatterns(excludeURLS);
}

3、问题：当配置了/api/download拦截过滤后请求/api/download不生效

4、原因：在doDispatch中获取要匹配的循环请求路径时是不会添加前缀/api的，是直接在HandlerMapping中获取的路径

 

5、解决：将请求过滤中的/api去掉，然后请求/api/download可以正常访问

@Override
public void addInterceptors(InterceptorRegistry registry) {
       InterceptorRegistration addInterceptor=registry.addInterceptor(apiInterceptor);
       List<String> excludeURLS = new ArrayList<>();
       excludeURLS.add("/SendPhoneMessage");
       excludeURLS.add("/getValidationCode");
       excludeURLS.add("/ProcessRateWebSocket");
       excludeURLS.add("/downloadBatchAddTemplate");
       excludeURLS.add("/download");
       addInterceptor.addPathPatterns("/**").excludePathPatterns(excludeURLS);
}