Question

我有一个包含@EnableMVC和Configuration注释的配置类。我扩展了WebMvcConfigurerAdapter类并重写了addArgumentResolver方法以添加一个。然而，该方法永远不会被调用。我已经完成了一个系统输出来测试它是否被调用。奇怪的是，我尝试将addInterceptor方法重写为同一个类，并且它被调用得很好。任何有关这里发生的事情的线索都会受到赞赏。

@Configuration
@ComponentScan("com.fico.cardinal")
@EnableWebMvc
public class WebContextConfig extends WebMvcConfigurerAdapter {
@Bean
public ValidateJson validateJson() {
    System.out.println("Created bean validate json");
    return new ValidateJson();
}

@Bean
private RequestMappingHandlerAdapter requestMappingHandlerAdapter() {
    return new RequestMappingHandlerAdapter();
} 

@Bean
public ValidateJsonSchema validateJsonSchema() {
    System.out.println("Created bean validate json schema");
    return new ValidateJsonSchema();
}

@Override
public void addArgumentResolvers(
        List<HandlerMethodArgumentResolver> argumentResolvers) {
    super.addArgumentResolvers(argumentResolvers);
    argumentResolvers.add(validateJsonSchema());
    System.out.println("Added resolver");
    // doesn't gets called
}

@Override
public void addInterceptors(InterceptorRegistry registry) {
    super.addInterceptors(registry);
    registry.addInterceptor(validateJson());
    System.out.println("added interceptor");
    // gets called
}

编辑：包含完整的配置类

Answer 1

以我为例

extends WebMvcConfigurationSupport

到

implements WebMvcConfigurer

工作

addArgumentResolver未在config类中调用

1 个答案: