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安全漏洞修复导致SpringBoot2.7与Springfox不兼容

项目基于 springboot2.5.2 实现的,用 springfox-swagger2 生成与前端对接的 API 文档;pom.xml 中依赖如下

<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.5.2</version>
</parent><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-boot-starter</artifactId><version>3.0.0</version></dependency>
</dependencies>

启动服务后,就可以访问 Swagger UI

http://localhost:8080/swagger-ui/index.html

swagger2-ui

前端同事就可以访问这个来对接接口了,后端省去了写接口文档的工作,一切都是那么美好!可突然有一天,安全部门发来报告,说服务存在很多安全漏洞

CVE-2023-20860、CVE-2022-45143、CVE-2023-46589、...

让我们根据报告中的建议进行修复,然后就开始了我的踩坑之旅!

springboot 与 springfox 兼容问题

粗略看了一眼,将 spring-boot 升级,可以解决很多漏洞,既然要升,那就升到可升的最高版本;因为是基于 JDK8,所以 spring-boot 最高能升级到 2.7.8。那就升嘛,不要怂就是干!

<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.18</version>
</parent>

启动服务,第一个坑来了:NullPointerException

2025-05-30 21:13:42.264|ERROR|main|818|o.s.boot.SpringApplication              :Application run failed
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerExceptionat org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54)at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:357)at java.lang.Iterable.forEach(Iterable.java:75)at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:156)at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:124)at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:946)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:594)at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732)at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:409)at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1289)at com.qsl.Application.main(Application.java:16)
Caused by: java.lang.NullPointerException: nullat springfox.documentation.spring.web.WebMvcPatternsRequestConditionWrapper.getPatterns(WebMvcPatternsRequestConditionWrapper.java:56)at springfox.documentation.RequestHandler.sortedPaths(RequestHandler.java:113)at springfox.documentation.spi.service.contexts.Orderings.lambda$byPatternsCondition$3(Orderings.java:89)at java.util.Comparator.lambda$comparing$77a9974f$1(Comparator.java:469)at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)at java.util.TimSort.sort(TimSort.java:220)at java.util.Arrays.sort(Arrays.java:1512)at java.util.ArrayList.sort(ArrayList.java:1454)at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:387)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)at springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider.requestHandlers(WebMvcRequestHandlerProvider.java:81)at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.withDefaults(AbstractDocumentationPluginsBootstrapper.java:107)at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.buildContext(AbstractDocumentationPluginsBootstrapper.java:91)at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.bootstrapDocumentationPlugins(AbstractDocumentationPluginsBootstrapper.java:82)at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:100)at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:179)... 14 common frames omitted

遇到问题不要怕

查询问题并解决问题嘛;从哪查,我想大家已经达成了统一的共识:大数据模型deepseek 就是热门之一,我们直接将堆栈信息扔给他,让他提供解决方案。他一针见血分析出了原因

这个错误通常是由于 Springfox Swaggerspringfox-swagger2)与 Spring Boot 版本不兼容 或 Spring MVC 路径匹配策略冲突 导致的。以下是几种解决方案

  1. 降级 Spring Boot 版本

    Spring Boot 2.6+ 开始与 springfox 不兼容,但 Springfox Swagger 2.x 已经停止维护了,所以说通过升级 Springfox Swagger 来适配 Spring Boot 2.6+ 是不行了。

    我们的目的是升级 Spring Boot,那么降级 Spring Boot 这个方案肯定是行不通的。

  2. 升级到 SpringDoc OpenAPI

    SpringDoc 是 Swagger 的替代方案,支持 OpenAPI 3.0,兼容 Spring Boot 2.6+ 和 3.x

    考虑到注解变动大,需要调整的地方太多,这个方案不到万不得已不采用

  3. 修改路径匹配策略

    如果不想降级 Spring Boot,可以调整路径匹配策略

    spring:mvc:pathmatch:matching-strategy: ant_path_matcher
    

    这个调整简单,感觉可行,试试发现雀氏可以,采用这种方案

  4. Swagger 配置是否正确

    确保 @EnableSwagger2 和 Docket 配置正确

    
    @Configuration
    @EnableSwagger2
    public class SwaggerConfig {@Beanpublic Docket api() {return new Docket(DocumentationType.SWAGGER_2).select().apis(RequestHandlerSelectors.basePackage("com.your.package")) // 替换成你的 Controller 包名.paths(PathSelectors.any()).build();}
    }
    

    这个确定是配置正确的,不是这个问题

deepseek 还给了其他方案,大家可以结合自己的实际情况,看看方案是否适用。如果你们以为坑就这么填平了,那只能说你们还是太年轻啦

我再加个依赖

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

启动服务,同样的问题又来了

org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerExceptionat org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54)at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:357)at java.lang.Iterable.forEach(Iterable.java:75)at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:156)at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:124)at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:946)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:594)at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732)at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:409)at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1289)at com.qsl.Application.main(Application.java:16)
Caused by: java.lang.NullPointerException: nullat springfox.documentation.spring.web.WebMvcPatternsRequestConditionWrapper.getPatterns(WebMvcPatternsRequestConditionWrapper.java:56)at springfox.documentation.RequestHandler.sortedPaths(RequestHandler.java:113)at springfox.documentation.spi.service.contexts.Orderings.lambda$byPatternsCondition$3(Orderings.java:89)at java.util.Comparator.lambda$comparing$77a9974f$1(Comparator.java:469)at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)at java.util.TimSort.sort(TimSort.java:220)at java.util.Arrays.sort(Arrays.java:1512)at java.util.ArrayList.sort(ArrayList.java:1454)at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:387)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.Sink$ChainedReference.end(Sink.java:258)at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)at springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider.requestHandlers(WebMvcRequestHandlerProvider.java:81)at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.withDefaults(AbstractDocumentationPluginsBootstrapper.java:107)at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.buildContext(AbstractDocumentationPluginsBootstrapper.java:91)at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.bootstrapDocumentationPlugins(AbstractDocumentationPluginsBootstrapper.java:82)at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:100)at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:179)... 14 common frames omitted

同个问题出现一次也就算了,换个方式出现第二次,有点欺负人了!

此时我们再去问 deepseek,给出的解决方案,尝试了都不对,好在在网上找到了解决方案,增加如下配置

@Configuration
@EnableSwagger2
public class SwaggerConfig {/*** springboot 2.7.x不支持swagger2,注册bean进行兼容* 该方法在Spring Boot 2.7.x中手动注册WebMvcEndpointHandlerMapping,用于解决Swagger无法直接访问Actuator端点的问题。下面详细说明其作用:* 1. 收集所有可暴露的端点* 使用以下组件获取不同类型的端点:* webEndpointsSupplier.getEndpoints():获取所有基于Web的端点(如/actuator/health)。* servletEndpointsSupplier.getEndpoints():获取Servlet类型的端点(如/actuator/servlet)。* controllerEndpointsSupplier.getEndpoints():获取Controller类型的端点。* 将这些端点统一添加到allEndpoints列表中,以便后续处理。* 2. 设置端点的基础路径* 从WebEndpointProperties中获取配置的端点基础路径(basePath),默认值通常是/actuator。* 创建一个EndpointMapping对象,并传入基础路径,用于定义端点的URL映射规则。* 3. 判断是否需要注册端点链接映射* 判断条件如下:* 如果启用了端点发现(webEndpointProperties.getDiscovery().isEnabled())。* 并且设置了有效的基础路径(StringUtils.hasText(basePath)),或者管理端口与应用端口不同(ManagementPortType.DIFFERENT)。* 如果满足条件,则创建端点链接映射,用于生成包含所有可用端点的首页链接(例如/actuator)。* 4. 构建并返回WebMvcEndpointHandlerMapping* 创建WebMvcEndpointHandlerMapping实例时传入以下参数:* endpointMapping:定义端点的基础路径。* webEndpoints:需要注册的Web类型端点集合。* endpointMediaTypes:定义端点支持的媒体类型(如JSON、YAML等)。* corsConfiguration:跨域资源共享(CORS)配置。* new EndpointLinksResolver(allEndpoints, basePath):用于生成端点链接的解析器。* shouldRegisterLinksMapping:是否注册端点链接映射。* null:通常用于指定自定义的请求谓词,此处为默认值。* 返回的WebMvcEndpointHandlerMapping使Swagger能够正常访问和展示Actuator端点的信息。* 5. 兼容性适配* Spring Boot 2.7.x之后,Swagger 2不再直接支持访问Actuator端点,此方法通过手动注册WebMvcEndpointHandlerMapping来恢复兼容性,确保Swagger UI可以正确显示和调用这些监控和管理接口。* 总结* 此方法的核心目的是手动注册端点处理器映射,以确保Swagger能够正确访问Spring Boot Actuator提供的各种监控和管理端点。通过整合多种端点类型、设置基础路径、启用链接映射等方式,使得开发者能够在Swagger UI中方便地测试和使用这些端点。*/@Beanpublic WebMvcEndpointHandlerMapping webEndpointServletHandlerMapping(WebEndpointsSupplier webEndpointsSupplier,ServletEndpointsSupplier servletEndpointsSupplier,ControllerEndpointsSupplier controllerEndpointsSupplier,EndpointMediaTypes endpointMediaTypes,CorsEndpointProperties corsProperties,WebEndpointProperties webEndpointProperties,Environment environment) {List<ExposableEndpoint<?>> allEndpoints = new ArrayList<>();Collection<ExposableWebEndpoint> webEndpoints = webEndpointsSupplier.getEndpoints();allEndpoints.addAll(webEndpoints);allEndpoints.addAll(servletEndpointsSupplier.getEndpoints());allEndpoints.addAll(controllerEndpointsSupplier.getEndpoints());String basePath = webEndpointProperties.getBasePath();EndpointMapping endpointMapping = new EndpointMapping(basePath);boolean shouldRegisterLinksMapping =webEndpointProperties.getDiscovery().isEnabled() && (StringUtils.hasText(basePath)|| ManagementPortType.get(environment).equals(ManagementPortType.DIFFERENT));return new WebMvcEndpointHandlerMapping(endpointMapping, webEndpoints, endpointMediaTypes,corsProperties.toCorsConfiguration(), new EndpointLinksResolver(allEndpoints, basePath),shouldRegisterLinksMapping, null);}
}

启动服务,不再报错,Swagger UI 也能正常访问

swagger2-ui_1

也许你们会觉得这个坑解决的也快呀,没什么大不了的,可实际是项目中有众多的依赖,你如何知道是因为 spring-boot-starter-actuator 导致的?我实际排查这个问题的过程,可不是如上所说的那般容易,但有一点我们要清楚

我们遇到的坑,肯定有前辈遇到过

所以我们要做的是想清楚关键词,到大数据模型搜索,或者到搜索引擎搜索

总结

  1. 归根结底,还是 Springfox 没有去适配 Spring Boot 的升级,所以可能的话,还是推荐大家用 SpringDoc OpenAPI

  2. 不到万不得已,不要去升级组件

    坑我已经替你们踩过

    都是血的教训,希望大家引以为戒

  3. 遇到问题,当下推荐的做法是用 大数据模型,关键词给的好,得到的回答八九不离十就是正确的解决方案

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