今天小编给大家分享一下Springboot2.6.x高版本与Swagger2版本冲突问题怎么解决的相关知识点,内容详细,逻辑清晰,相信大部分人都还太了解这方面的知识,所以分享这篇文章给大家参考一下,希望大家阅读完这篇文章后有所收获,下面我们一起来了解一下吧。
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…
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。
1. pom配置
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.6.4</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
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;
@Component
public class SwaggerBeanPostProcessor implements BeanPostProcessor {
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
if (bean instanceof WebMvcRequestHandlerProvider || bean instanceof WebFluxRequestHandlerProvider)
{
List<RequestMappingInfoHandlerMapping> handlerMappings = getHandlerMappings(bean);
customizeSpringfoxHandlerMappings(handlerMappings);
}
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) {
throw new IllegalStateException(e);
}
}
}
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;
@Configuration
public 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);
}
}
4. 访问 http://{ip}:{port}/swagger-ui/index.html
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