![cover](https://img-blog.csdnimg.cn/img_convert/1f20816e15694cf3b56262c1f87e2a14.png)
org.springframework.context.ApplicationContextException: Failed to start bean ‘documentationPluginsB
https://www.cnblogs.com/javaxubo/p/17626752.html
·
报错信息:
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
报错过程:
我修改了springboot的版本从2.5.6升到了2.7.11
过后启动springboot出现此错误
报错原因:
SpringBoot2.6.x与Swagger2 3.0.0版本冲突
解决方法:
一、springboot版本降级回2.6以下
二、在application.yml中添加以下配置:
spring: mvc: pathmatch: matching-strategy: ant_path_matcher
以上亲测有效~
如果该配置没有启动作用,可以试试下面的配置
@Configuration
@EnableOpenApi
@Slf4j
public class SwaggerConfig implements ApplicationListener<WebServerInitializedEvent> {
@Bean
public Docket createRestApi(){
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(getApiInfo())
.pathMapping("/")
.select()
.apis(RequestHandlerSelectors.basePackage("com.www.wen"))
.paths(PathSelectors.any())
.build();
}
public ApiInfo getApiInfo(){
return new ApiInfoBuilder()
.title("xxx应用平台") // 文档标题
.description("xxx应用平台文档描述") // 文档描述
.termsOfServiceUrl("http://www.baidu.com")
.version("1.0")
.build();
}
/**
* 解决SpringBoot和Swagger2冲突
*
* @return
*/
@Bean
public static BeanPostProcessor springfoxHandlerProviderBeanPostProcessor() {
return new BeanPostProcessor() {
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
if (bean instanceof WebMvcRequestHandlerProvider || bean instanceof WebFluxRequestHandlerProvider) {
customizeSpringfoxHandlerMappings(getHandlerMappings(bean));
}
return bean;
}
private <T extends RequestMappingInfoHandlerMapping> void customizeSpringfoxHandlerMappings(List<T> mappings) {
List<T> copy = mappings.stream()
.filter(mapping -> mapping.getPatternParser() == null)
.collect(Collectors.toList());
mappings.clear();
mappings.addAll(copy);
}
@SuppressWarnings("unchecked")
private List<RequestMappingInfoHandlerMapping> getHandlerMappings(Object bean) {
try {
Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings");
field.setAccessible(true);
return (List<RequestMappingInfoHandlerMapping>) field.get(bean);
} catch (IllegalArgumentException | IllegalAccessException e) {
log.warn("修改WebMvcRequestHandlerProvider的属性:handlerMappings出错,可能导致swagger不可用", e);
throw new IllegalStateException(e);
}
}
};
}
}
更多推荐
所有评论(0)