话不多说先上报错信息
Caused by: java.lang.NullPointerException: null
at springfox.documentation.spring.web.WebMvcPatternsRequestConditionWrapper.getPatterns(WebMvcPatternsRequestConditionWrapper.java:56) ~[springfox-spring-webmvc-3.0.0.jar:3.0.0]
at springfox.documentation.RequestHandler.sortedPaths(RequestHandler.java:113) ~[springfox-core-3.0.0.jar:3.0.0]
at springfox.documentation.spi.service.contexts.Orderings.lambda$byPatternsCondition$3(Orderings.java:89) ~[springfox-spi-3.0.0.jar:3.0.0]
at java.util.Comparator.lambda$comparing$77a9974f$1(Comparator.java:469) ~[na:1.8.0_361]
at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) ~[na:1.8.0_361]
at java.util.TimSort.sort(TimSort.java:220) ~[na:1.8.0_361]
at java.util.Arrays.sort(Arrays.java:1512) ~[na:1.8.0_361]
at java.util.ArrayList.sort(ArrayList.java:1464) ~[na:1.8.0_361]
at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:387) ~[na:1.8.0_361]
at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_361]
at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_361]
at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_361]
at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:483) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[na:1.8.0_361]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_361]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_361]
at springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider.requestHandlers(WebMvcRequestHandlerProvider.java:81) ~[springfox-spring-webmvc-3.0.0.jar:3.0.0]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_361]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[na:1.8.0_361]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_361]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_361]
at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.withDefaults(AbstractDocumentationPluginsBootstrapper.java:107) ~[springfox-spring-web-3.0.0.jar:3.0.0]
at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.buildContext(AbstractDocumentationPluginsBootstrapper.java:91) ~[springfox-spring-web-3.0.0.jar:3.0.0]
at springfox.documentation.spring.web.plugins.AbstractDocumentationPluginsBootstrapper.bootstrapDocumentationPlugins(AbstractDocumentationPluginsBootstrapper.java:82) ~[springfox-spring-web-3.0.0.jar:3.0.0]
at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:100) ~[springfox-spring-web-3.0.0.jar:3.0.0]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.20.jar:5.3.20]
... 14 common frames omitted
炸一看，springboot启动居然报NullPointerException
淡定！云中之龙，亦有其渊。遇到问题不要慌，总能解决的
仔细看其中一行错误信息为
at springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider.requestHandlers(WebMvcRequestHandlerProvider.java:81) ~[springfox-spring-webmvc-3.0.0.jar:3.0.0]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_361]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[na:1.8.0_361]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_361]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_361]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_361]此时从报错信息可以确定问题是由Swagger引起 (如果不确定可以移除Swagger依赖，重新刷新Maven，再启动如果此时没有报错，即可定位问题在Swagger)
此时带着问题到小du搜索
springboot中的application.yml中加入以下配置即可:
spring:
mvc:
pathmatch:
matching-strategy: ant_path_matcher成功启动项目
/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/bin/java -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -Dmanagement.endpoints.jmx.exposure.include=* -Dhxl.spring.invoke.port=33333 -javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=50250:/Applications/IntelliJ IDEA.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/jre/lib/rt.jar:/Users/apple/Documents/deletedProject/ksy-hd/ksy-files/target/classes:/Users/apple/repository/io/springfox/springfox-boot-starter/3.0.0/springfox-boot-starter-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-oas/3.0.0/springfox-oas-3.0.0.jar:/Users/apple/repository/io/swagger/core/v3/swagger-annotations/2.1.2/swagger-annotations-2.1.2.jar:/Users/apple/repository/io/swagger/core/v3/swagger-models/2.1.2/swagger-models-2.1.2.jar:/Users/apple/repository/com/fasterxml/jackson/core/jackson-annotations/2.13.3/jackson-annotations-2.13.3.jar:/Users/apple/repository/io/springfox/springfox-spi/3.0.0/springfox-spi-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-schema/3.0.0/springfox-schema-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-core/3.0.0/springfox-core-3.0.0.jar:/Users/apple/repository/net/bytebuddy/byte-buddy/1.12.10/byte-buddy-1.12.10.jar:/Users/apple/repository/io/springfox/springfox-spring-web/3.0.0/springfox-spring-web-3.0.0.jar:/Users/apple/repository/io/github/classgraph/classgraph/4.8.83/classgraph-4.8.83.jar:/Users/apple/repository/io/springfox/springfox-spring-webmvc/3.0.0/springfox-spring-webmvc-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-spring-webflux/3.0.0/springfox-spring-webflux-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-swagger-common/3.0.0/springfox-swagger-common-3.0.0.jar:/Users/apple/repository/org/mapstruct/mapstruct/1.3.1.Final/mapstruct-1.3.1.Final.jar:/Users/apple/repository/io/springfox/springfox-data-rest/3.0.0/springfox-data-rest-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-bean-validators/3.0.0/springfox-bean-validators-3.0.0.jar:/Users/apple/repository/io/springfox/springfox-swagger2/3.0.0/springfox-swagger2-3.0.0.jar:/Users/apple/repository/io/swagger/swagger-annotations/1.5.20/swagger-annotations-1.5.20.jar:/Users/apple/repository/io/swagger/swagger-models/1.5.20/swagger-models-1.5.20.jar:/Users/apple/repository/io/springfox/springfox-swagger-ui/3.0.0/springfox-swagger-ui-3.0.0.jar:/Users/apple/repository/com/fasterxml/classmate/1.5.1/classmate-1.5.1.jar:/Users/apple/repository/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar:/Users/apple/repository/org/springframework/plugin/spring-plugin-core/2.0.0.RELEASE/spring-plugin-core-2.0.0.RELEASE.jar:/Users/apple/repository/org/springframework/spring-beans/5.3.20/spring-beans-5.3.20.jar:/Users/apple/repository/org/springframework/spring-context/5.3.20/spring-context-5.3.20.jar:/Users/apple/repository/org/springframework/spring-aop/5.3.20/spring-aop-5.3.20.jar:/Users/apple/repository/org/springframework/plugin/spring-plugin-metadata/2.0.0.RELEASE/spring-plugin-metadata-2.0.0.RELEASE.jar:/Users/apple/repository/cn/dev33/sa-token-spring-boot-starter/1.32.0/sa-token-spring-boot-starter-1.32.0.jar:/Users/apple/repository/cn/dev33/sa-token-servlet/1.32.0/sa-token-servlet-1.32.0.jar:/Users/apple/repository/cn/dev33/sa-token-core/1.32.0/sa-token-core-1.32.0.jar:/Users/apple/repository/mysql/mysql-connector-java/8.0.22/mysql-connector-java-8.0.22.jar:/Users/apple/repository/org/springframework/boot/spring-boot-starter-validation/2.7.0/spring-boot-starter-validation-2.7.0.jar:/Users/apple/repository/org/springframework/boot/spring-boot-starter/2.7.0/spring-boot-starter-2.7.0.jar:/Users/apple/repository/org/springframework/boot/spring-boot/2.7.0/spring-boot-2.7.0.jar:/Users/apple/repository/org/springframework/boot/spring-boot-autoconfigure/2.7.0/spring-boot-autoconfigure-2.7.0.jar:/Users/apple/repository/org/springframework/boot/spring-boot-starter-logging/2.7.0/spring-boot-starter-logging-2.7.0.jar:/Users/apple/repository/ch/qos/logback/logback-classic/1.2.11/logback-classic-1.2.11.jar:/Users/apple/repository/ch/qos/logback/logback-core/1.2.11/logback-core-1.2.11.jar:/Users/apple/repository/org/apache/logging/log4j/log4j-to-slf4j/2.17.2/log4j-to-slf4j-2.17.2.jar:/Users/apple/repository/org/apache/logging/log4j/log4j-api/2.17.2/log4j-api-2.17.2.jar:/Users/apple/repository/org/slf4j/jul-to-slf4j/1.7.36/jul-to-slf4j-1.7.36.jar:/Users/apple/repository/jakarta/annotation/jakarta.annotation-api/1.3.5/jakarta.annotation-api-1.3.5.jar:/Users/apple/repository/org/springframework/spring-core/5.3.20/spring-core-5.3.20.jar:/Users/apple/repository/org/springframework/spring-jcl/5.3.20/spring-jcl-5.3.20.jar:/Users/apple/repository/org/yaml/snakeyaml/1.30/snakeyaml-1.30.jar:/Users/apple/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.63/tomcat-embed-el-9.0.63.jar:/Users/apple/repository/org/hibernate/validator/hibernate-validator/6.2.3.Final/hibernate-validator-6.2.3.Final.jar:/Users/apple/repository/jakarta/validation/jakarta.validation-api/2.0.2/jakarta.validation-api-2.0.2.jar:/Users/apple/repository/org/jboss/logging/jboss-logging/3.4.3.Final/jboss-logging-3.4.3.Final.jar:/Users/apple/repository/cn/hutool/hutool-all/5.8.9/hutool-all-5.8.9.jar:/Users/apple/repository/org/projectlombok/lombok/1.18.12/lombok-1.18.12.jar:/Users/apple/repository/org/springframework/boot/spring-boot-starter-web/2.7.0/spring-boot-starter-web-2.7.0.jar:/Users/apple/repository/org/springframework/boot/spring-boot-starter-json/2.7.0/spring-boot-starter-json-2.7.0.jar:/Users/apple/repository/com/fasterxml/jackson/core/jackson-databind/2.13.3/jackson-databind-2.13.3.jar:/Users/apple/repository/com/fasterxml/jackson/core/jackson-core/2.13.3/jackson-core-2.13.3.jar:/Users/apple/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.13.3/jackson-datatype-jdk8-2.13.3.jar:/Users/apple/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.13.3/jackson-datatype-jsr310-2.13.3.jar:/Users/apple/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.13.3/jackson-module-parameter-names-2.13.3.jar:/Users/apple/repository/org/springframework/boot/spring-boot-starter-tomcat/2.7.0/spring-boot-starter-tomcat-2.7.0.jar:/Users/apple/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.63/tomcat-embed-core-9.0.63.jar:/Users/apple/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.63/tomcat-embed-websocket-9.0.63.jar:/Users/apple/repository/org/springframework/spring-web/5.3.20/spring-web-5.3.20.jar:/Users/apple/repository/org/springframework/spring-webmvc/5.3.20/spring-webmvc-5.3.20.jar:/Users/apple/repository/org/springframework/spring-expression/5.3.20/spring-expression-5.3.20.jar:/Users/apple/repository/com/alibaba/fastjson/1.2.76/fastjson-1.2.76.jar:/Users/apple/.config/.cool-request/request/lib/spring-invoke-starter.jar com.ksy.files.FilesApplication
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.7.0)
2024-09-13 09:47:05.836 INFO 32150 --- [ main] com.ksy.files.FilesApplication : Starting FilesApplication using Java 1.8.0_361 on hanyu-Mac-mini with PID 32150 (/Users/apple/Documents/deletedProject/ksy-hd/ksy-files/target/classes started by apple in /Users/apple/Documents/deletedProject/ksy-hd)
2024-09-13 09:47:05.838 INFO 32150 --- [ main] com.ksy.files.FilesApplication : The following 1 profile is active: "dev"
2024-09-13 09:47:07.052 INFO 32150 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 9002 (http)
2024-09-13 09:47:07.058 INFO 32150 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2024-09-13 09:47:07.058 INFO 32150 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.63]
2024-09-13 09:47:07.198 INFO 32150 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2024-09-13 09:47:07.198 INFO 32150 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1313 ms
____ ____ ___ ____ _ _ ____ _ _
[__ |__| __ | | | |_/ |___ |\ |
___] | | | |__| | \_ |___ | \|
https://sa-token.cc (v1.32.0)
2024-09-13 09:47:08.026 INFO 32150 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 9002 (http) with context path ''
2024-09-13 09:47:08.094 INFO 32150 --- [ main] com.ksy.files.FilesApplication : Started FilesApplication in 2.783 seconds (JVM running for 3.976)访问http://localhost:9002/swagger-ui/index.html成功（端口换成你自己的）
