问题:
spring boot 2.6.x版本引入依赖 springfox-boot-starter (swagger 3.0) 后，启动容器会报错：
Failed to start bean ‘ documentationPluginsBootstrapper ‘ ; nested exception…
原因
Springfox 假设 Spring MVC 的路径匹配策略是 ant-path-matcher，而 Spring Boot 2.6.x版本的默认匹配策略是 path-pattern-matcher，这就造成了上面的报错。
完整解决方案:
1. pom配置
org.springframework.boot spring-boot-starter-web 2.6.4 io.springfox springfox-boot-starter 3.0.0
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2. 添加Bean
import org.springframework.beans.BeansException;import org.springframework.beans.factory.config.BeanPostProcessor;import org.springframework.stereotype.Component;import org.springframework.util.ReflectionUtils;import org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping;import springfox.documentation.spring.web.plugins.WebFluxRequestHandlerProvider;import springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider; import java.lang.reflect.Field;import java.util.List;import java.util.stream.Collectors; @Componentpublic class SwaggerBeanPostProcessor implements BeanPostProcessor { @Override public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { if (bean instanceof WebMvcRequestHandlerProvider || bean instanceof WebFluxRequestHandlerProvider) { List handlerMappings = getHandlerMappings(bean); customizeSpringfoxHandlerMappings(handlerMappings); } return bean; } private void customizeSpringfoxHandlerMappings(List mappings) { List copy = mappings.stream() .filter(mapping -> mapping.getPatternParser() == null) .collect(Collectors.toList()); mappings.clear(); mappings.addAll(copy); } @SuppressWarnings("unchecked") private List getHandlerMappings(Object bean) { try { Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings"); field.setAccessible(true); return (List) field.get(bean); } catch (IllegalArgumentException | IllegalAccessException e) { throw new IllegalStateException(e); } }}
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3. swagger配置类继承 WebMvcConfigurationSupport
import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;import springfox.documentation.service.ApiInfo;import springfox.documentation.spi.DocumentationType;import springfox.documentation.spring.web.plugins.Docket; @Configurationpublic class Swagger2Config extends WebMvcConfigurationSupport { @Bean public Docket createRestApi() { return new Docket(DocumentationType.SWAGGER_2) .apiInfo(ApiInfo.DEFAULT); } @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry. addResourceHandler("/swagger-ui/**") .addResourceLocations("classpath:/META-INF/resources/webjars/springfox-swagger-ui/") .resourceChain(false); }}
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4. 访问 http://{ip}:{port}/swagger-ui/index.html
以上就是Springboot2.6.x高版本与Swagger2版本冲突问题怎么解决的详细内容，更多请关注【创想鸟】其它相关文章！
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