记springfox-swagger 3 与spring boot 2.6.0集成时的一个异常

今天在集成spring-boot 2.6.2与springfox-swagger时有一次碰到了下边的错，其实这个错在之前已经遇到过了，并且用后边的配置解决掉了，但是今天在一个新项目中又出现了，通过使用相同的配置并不生效。 

16:42:00.994 [main] ERROR o.s.b.SpringApplication [line:819] - 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:181)at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54)at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356)at java.lang.Iterable.forEach(Iterable.java:75)at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155)at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123)at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586)at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730)at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412)at org.springframework.boot.SpringApplication.run(SpringApplication.java:302)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290)at tech.ihai.yimaguan.console.YimaguanConsole.main(YimaguanConsole.java:15)
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$1(Comparator.java:469)at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)at java.util.TimSort.sort(TimSort.java:234)at java.util.Arrays.sort(Arrays.java:1512)at java.util.ArrayList.sort(ArrayList.java:1464)at java.util.stream.SortedOps$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)

配置：

spring:mvc:pathmatch:matching-strategy: ant_path_matcher

花了很长时间经过对比和测试发现在新的项目中依赖了spring-boot-starter-actuator，将其注释掉就好了。

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