Swagger-Springfox+WebFlux+JavaX验证(JSR303)支持

Question

null

springBootVersion = '2.0.2.RELEASE'

//JavaX-validation    
'javax.validation:validation-api:2.0.0.Final',    
'javax.el:javax.el-api:3.0.0',    
'org.glassfish.web:javax.el:2.2.6'

//SpringFox-Swagger    
'io.springfox:springfox-swagger2:2.9.2',    
'io.springfox:springfox-spring-webflux:3.0.0-SNAPSHOT',    
'io.github.swagger2markup:swagger2markup-gradle-plugin:1.3.3'

问题是：

当添加以下依赖项以实现“Spring Webflux+SpringFox+JSR303”时，

**'io.springfox:springfox-bean-validators:2.9.2'**

我得到以下错误，

[WARN ] 2018-11-01 10:16:50.535 [main] SpringApplication - Unable to close ApplicationContext    
java.lang.IllegalStateException: Failed to introspect Class 
             springfox.documentation.swagger2.configuration.Swagger2DocumentationConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]  

    at 
     org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]    
         at 
     org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556 ) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]     
        at 
     org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.ge tTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:724) ~[spring- beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]    
         at 
     org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:861) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]    
        at 
     org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:810) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]    
        at 
     org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE]     
     Caused by: java.lang.NoClassDefFoundError: 
     org/springframework/web/servlet/HandlerMapping
        at java.lang.Class.getDeclaredMethods0(Native Method) ~[?:1.8.0_92]
        at java.lang.Class.privateGetDeclaredMethods(Unknown Source) ~[?:1.8.0_92]
        at java.lang.Class.getDeclaredMethods(Unknown Source) ~[?:1.8.0_92]
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        ... 20 more            
    Caused by: java.lang.ClassNotFoundException: org.springframework.web.servlet.HandlerMapping
        at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_92]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_92]

另外，如果当前不支持JSR303，那么除了JSR303之外，还可以使用哪些其他验证注释？我不想使用Swagger核心注释，只是因为它会扰乱代码的可读性。

Answer 1

在pom.xml中添加：

    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>3.0.0</version>
        <scope>compile</compile>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>3.0.0</version>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-spring-webflux</artifactId>
        <version>3.0.0</version>
    </dependency>

并使用注释：

@EnableSwagger2

在你昂首阔步的配置中。