springboot2.6.x 整合 Swagger3 无法访问/swagger-ui/或者/swagger-ui/index.html解决方案

2022-07-25 13:07:41

错误1： org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException

缺少：matching-strategy: ant_path_matcher 的配置

在yml文件中配置

spring:
  mvc:
    pathmatch:
      matching-strategy: ant_path_matcher
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.14.jar:5.3.14]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_201]
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) [spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) [spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) [spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) [spring-boot-2.6.2.jar:2.6.2]
	at com.skdata.soft.CommunityDataApplication.main(CommunityDataApplication.java:11) [classes/:na]
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$1(Comparator.java:469) ~[na:1.8.0_201]
	at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) ~[na:1.8.0_201]
	at java.util.TimSort.sort(TimSort.java:220) ~[na:1.8.0_201]
	at java.util.Arrays.sort(Arrays.java:1512) ~[na:1.8.0_201]
	at java.util.ArrayList.sort(ArrayList.java:1462) ~[na:1.8.0_201]
	at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:387) ~[na:1.8.0_201]
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_201]
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_201]
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_201]
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[na:1.8.0_201]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[na:1.8.0_201]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_201]
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_201]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_201]
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_201]
	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$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_201]
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) ~[na:1.8.0_201]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_201]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_201]
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_201]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_201]
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_201]
	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-5.3.14.jar:5.3.14]
	... 14 common frames omitted


Process finished with exit code 1

错误2 ：No API definition provided 配置不对 缺少注解

缺少注解

/**
 * @author try
 * @version 1.0.0
 * @Description TODO
 * @createTime 2022年02月08日
 */
@Configuration
public class SwaggerConfig{

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.OAS_30)  // DocumentationType.SWAGGER_2 固定的，代表swagger2
                .apiInfo(apiInfo()) // 用于生成API信息
                .select() // select()函数返回一个ApiSelectorBuilder实例,用来控制接口被swagger做成文档
                .apis(RequestHandlerSelectors.basePackage("com.skdata.soft.controller")) // 用于指定扫描哪个包下的接口
                .paths(PathSelectors.any())// 选择所有的API,如果你想只为部分API生成文档，可以配置这里
                .build();
    }

    /**
     * 用于定义API主界面的信息，比如可以声明所有的API的总标题、描述、版本
     */
    //生成接口信息，包括标题、联系人，联系方式等
    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("Swagger3接口文档")
                .description("如有疑问，请联系开发工程师")
                .contact(new Contact("数科", "https://localhost/", "localhost@qq.com"))
                .version("1.0")
                .build();
    }
}
<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

<dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-boot-starter</artifactId>
            <version>${swagger3.version}</version>
        </dependency>

访问地址 http://localhost:8080/swagger-ui/index.html 或者http://localhost:8080/swagger-ui/

  • 作者：sinat_16800363
  • 原文链接：https://blog.csdn.net/sinat_16800363/article/details/122837864
    更新时间：2022-07-25 13:07:41