我正在尝试使用OpenJDK 15、Spring Boot 2.6.0、Springfox 3 启动 Spring Boot 项目。
我们正在做一个项目，取代Netty作为 Web 服务器并使用 Jetty 来代替，因为我们不需要非阻塞环境。
在代码中我们主要依赖Reactor API（Flux、Mono），所以我们无法删除org.springframework.boot:spring-boot-starter-webflux依赖。
我在一个新项目中复制了我们遇到的问题：https://github.com/jvacaq/spring-fox。
我发现build.gradle文件中的这些行是问题的根源。
compile("org.springframework.boot:spring-boot-starter-web") {
exclude module: "spring-boot-starter-tomcat"
}
compile("org.springframework.boot:spring-boot-starter-jetty")
这是build.gradle文件：
plugins {
id 'org.springframework.boot' version '2.6.0'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
repositories {
mavenCentral()
}
dependencies {
compile("org.springframework.boot:spring-boot-starter-web") {
exclude module: "spring-boot-starter-tomcat"
}
compile("org.springframework.boot:spring-boot-starter-jetty")
implementation 'org.springframework.boot:spring-boot-starter-webflux'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
testImplementation 'io.projectreactor:reactor-test'
implementation "io.springfox:springfox-boot-starter:3.0.0" …Springfox 3.0.0 无法与 Spring Boot 2.6.0 一起使用，升级后出现以下错误
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException: Cannot invoke "org.springframework.web.servlet.mvc.condition.PatternsRequestCondition.getPatterns()" because "this.condition" is null
at 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.base/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 com.enkindle.AntivirusApplication.main(AntivirusApplication.java:16)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: java.lang.NullPointerException: Cannot invoke "org.springframework.web.servlet.mvc.condition.PatternsRequestCondition.getPatterns()" because "this.condition" is null
at springfox.documentation.spring.web.WebMvcPatternsRequestConditionWrapper.getPatterns(WebMvcPatternsRequestConditionWrapper.java:56)
at springfox.documentation.RequestHandler.sortedPaths(RequestHandler.java:113)
at …我正在尝试使用SpringFox。
Spring Boot 版本：'org.springframework.boot:3.0.0-SNAPSHOT'
构建.gradle
dependencies {
...
implementation 'io.springfox:springfox-petstore:2.10.5'
implementation "io.springfox:springfox-swagger2:3.0.0"
implementation "io.springfox:springfox-oas:3.0.0"
implementation 'io.springfox:springfox-swagger-ui:3.0.0'
...
}
Spring引导类
@SpringBootApplication
@EnableSwagger2
@EnableOpenApi
public class ServiceApplication {
public static void main(String[] args) {
SpringApplication.run(ServiceApplication.class, args);
}
}
SwaggerUiWebMvc配置器
@Component
public class SwaggerUiWebMvcConfigurer implements WebMvcConfigurer {
private final String baseUrl;
public SwaggerUiWebMvcConfigurer(
@Value("${springfox.documentation.swagger-ui.base-url:}") String baseUrl) {
this.baseUrl = baseUrl;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
String baseUrl = StringUtils.trimTrailingCharacter(this.baseUrl, '/');
registry.
addResourceHandler(baseUrl + "/swagger-ui/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/springfox-swagger-ui/")
.resourceChain(false);
}
@Override
public void addViewControllers(ViewControllerRegistry …我在 Spring Boot 应用程序中使用 springfox-boot-starter 依赖项来获取 swagger UI，但是当我尝试运行该应用程序时，出现以下错误
Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NoSuchMethodError: org.springframework.plugin.core.PluginRegistry.getPluginFor(Ljava/lang/Object;)Ljava/util/Optional;
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:184)
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:52)
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356)
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:157)
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:121)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:885)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:161)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
我的配置文件：
@Bean
public Docket productApi() {
return new Docket(DocumentationType.SWAGGER_2)
.select()
.apis(RequestHandlerSelectors.basePackage("com.swagger.demo.controller"))
.paths(regex("/student.*"))
.build()
.enableUrlTemplating(true)
.produces(DEFAULT_PRODUCES_AND_CONSUMES)
.consumes(DEFAULT_PRODUCES_AND_CONSUMES)
.apiInfo(apiEndPointsInfo());
}
private ApiInfo apiEndPointsInfo() {
return new ApiInfoBuilder()
.title("demo")
.description("demo")
.version("1.0")
.build();
}
以下是我正在使用的依赖项。 pom.xml 文件：
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath/> <!-- lookup parent from …这是我的代码：我从 application.properties 文件 SwaggerConfig.java 获取所有值
@Configuration
@EnableSwagger2
@Profile("!prod")
@PropertySource(value = { "classpath:application.properties" })
public class SwaggerConfig {
@Value("${swagger.api.title}")
private String title;
@Value("${swagger.api.description}")
private String description;
@Value("${swagger.api.termsOfServiceUrl}")
private String termsOfServiceUrl;
@Value("${swagger.api.version}")
private String version;
@Value("${swagger.api.controller.basepackage}")
private String basePackage;
@Bean
public Docket postMatchApi() {
return new Docket(DocumentationType.SWAGGER_2).select().apis(RequestHandlerSelectors.basePackage(basePackage))
.paths(PathSelectors.ant("/**")).build().apiInfo(metaData());
}
private ApiInfo metaData() {
return new ApiInfoBuilder().title(title).description(description).termsOfServiceUrl(termsOfServiceUrl)
.version(version).build();
}
这是我的 springboot 初始化程序：
@SpringBootApplication
@ComponentScan(basePackages = { "com.example.demo" })
@ComponentScan(basePackageClasses = {AppInitializer.class, SwaggerConfig.class})
@EnableAsync
@EnableRetry
public class AppInitializer{
public static void main(String[] args) { …在添加 swagger ui 的配置确实有帮助时，我不断收到此错误，因为我陷入了这一点。我已经尝试添加 ant-path-matcher 策略，但它不起作用
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-05-24 11:07:48.532 ERROR 1624 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
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-5.3.20.jar:5.3.20]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.20.jar:5.3.20]
at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_333]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.8.jar:2.6.8]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:745) [spring-boot-2.6.8.jar:2.6.8]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:420) [spring-boot-2.6.8.jar:2.6.8]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.6.8.jar:2.6.8]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1317) …