Caused by: java.lang.NullPointerException: Location is required.

学习javafx过程中遇到的Bug，具体如下

"C:\Program Files\Java\jdk1.8.0_144\bin\java.exe" "-javaagent:E:\software\IntelliJ IDEA 2020.1\lib\idea_rt.jar=55241:E:\software\IntelliJ IDEA 2020.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_144\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\rt.jar;E:\eclipse-workspace\parent-1\game\target\classes;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter-web\2.1.5.RELEASE\spring-boot-starter-web-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter\2.1.5.RELEASE\spring-boot-starter-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter-logging\2.1.5.RELEASE\spring-boot-starter-logging-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;E:\software\apache-maven-3.8.1\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;E:\software\apache-maven-3.8.1\repository\org\apache\logging\log4j\log4j-to-slf4j\2.11.2\log4j-to-slf4j-2.11.2.jar;E:\software\apache-maven-3.8.1\repository\org\apache\logging\log4j\log4j-api\2.11.2\log4j-api-2.11.2.jar;E:\software\apache-maven-3.8.1\repository\org\slf4j\jul-to-slf4j\1.7.26\jul-to-slf4j-1.7.26.jar;E:\software\apache-maven-3.8.1\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;E:\software\apache-maven-3.8.1\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter-json\2.1.5.RELEASE\spring-boot-starter-json-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.8\jackson-datatype-jdk8-2.9.8.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.8\jackson-datatype-jsr310-2.9.8.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.8\jackson-module-parameter-names-2.9.8.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter-tomcat\2.1.5.RELEASE\spring-boot-starter-tomcat-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.19\tomcat-embed-core-9.0.19.jar;E:\software\apache-maven-3.8.1\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.19\tomcat-embed-el-9.0.19.jar;E:\software\apache-maven-3.8.1\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.19\tomcat-embed-websocket-9.0.19.jar;E:\software\apache-maven-3.8.1\repository\org\hibernate\validator\hibernate-validator\6.0.16.Final\hibernate-validator-6.0.16.Final.jar;E:\software\apache-maven-3.8.1\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-web\5.1.7.RELEASE\spring-web-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-beans\5.1.7.RELEASE\spring-beans-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-webmvc\5.1.7.RELEASE\spring-webmvc-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-aop\5.1.7.RELEASE\spring-aop-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-expression\5.1.7.RELEASE\spring-expression-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\com\baomidou\mybatis-plus-boot-starter\3.4.0\mybatis-plus-boot-starter-3.4.0.jar;E:\software\apache-maven-3.8.1\repository\com\baomidou\mybatis-plus\3.4.0\mybatis-plus-3.4.0.jar;E:\software\apache-maven-3.8.1\repository\com\baomidou\mybatis-plus-extension\3.4.0\mybatis-plus-extension-3.4.0.jar;E:\software\apache-maven-3.8.1\repository\com\baomidou\mybatis-plus-core\3.4.0\mybatis-plus-core-3.4.0.jar;E:\software\apache-maven-3.8.1\repository\com\baomidou\mybatis-plus-annotation\3.4.0\mybatis-plus-annotation-3.4.0.jar;E:\software\apache-maven-3.8.1\repository\com\github\jsqlparser\jsqlparser\3.2\jsqlparser-3.2.jar;E:\software\apache-maven-3.8.1\repository\org\mybatis\mybatis-spring\2.0.5\mybatis-spring-2.0.5.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.5.RELEASE\spring-boot-autoconfigure-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\mysql\mysql-connector-java\8.0.16\mysql-connector-java-8.0.16.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter-jdbc\2.1.5.RELEASE\spring-boot-starter-jdbc-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\com\zaxxer\HikariCP\3.2.0\HikariCP-3.2.0.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-jdbc\5.1.7.RELEASE\spring-jdbc-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-core\5.1.7.RELEASE\spring-core-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-jcl\5.1.7.RELEASE\spring-jcl-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-test\4.3.0.RELEASE\spring-test-4.3.0.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\junit\jupiter\junit-jupiter\5.9.2\junit-jupiter-5.9.2.jar;E:\software\apache-maven-3.8.1\repository\org\junit\jupiter\junit-jupiter-api\5.3.2\junit-jupiter-api-5.3.2.jar;E:\software\apache-maven-3.8.1\repository\org\apiguardian\apiguardian-api\1.0.0\apiguardian-api-1.0.0.jar;E:\software\apache-maven-3.8.1\repository\org\opentest4j\opentest4j\1.1.1\opentest4j-1.1.1.jar;E:\software\apache-maven-3.8.1\repository\org\junit\platform\junit-platform-commons\1.3.2\junit-platform-commons-1.3.2.jar;E:\software\apache-maven-3.8.1\repository\org\junit\jupiter\junit-jupiter-params\5.3.2\junit-jupiter-params-5.3.2.jar;E:\software\apache-maven-3.8.1\repository\org\junit\jupiter\junit-jupiter-engine\5.3.2\junit-jupiter-engine-5.3.2.jar;E:\software\apache-maven-3.8.1\repository\org\junit\platform\junit-platform-engine\1.3.2\junit-platform-engine-1.3.2.jar;E:\software\apache-maven-3.8.1\repository\org\aspectj\aspectjweaver\1.8.14\aspectjweaver-1.8.14.jar;E:\software\apache-maven-3.8.1\repository\com\google\zxing\javase\3.3.3\javase-3.3.3.jar;E:\software\apache-maven-3.8.1\repository\com\google\zxing\core\3.3.3\core-3.3.3.jar;E:\software\apache-maven-3.8.1\repository\com\beust\jcommander\1.72\jcommander-1.72.jar;E:\software\apache-maven-3.8.1\repository\com\github\jai-imageio\jai-imageio-core\1.4.0\jai-imageio-core-1.4.0.jar;E:\software\apache-maven-3.8.1\repository\commons-io\commons-io\2.4\commons-io-2.4.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-swagger2\2.6.1\springfox-swagger2-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\io\swagger\swagger-annotations\1.5.10\swagger-annotations-1.5.10.jar;E:\software\apache-maven-3.8.1\repository\io\swagger\swagger-models\1.5.10\swagger-models-1.5.10.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-spi\2.6.1\springfox-spi-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-core\2.6.1\springfox-core-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-schema\2.6.1\springfox-schema-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-swagger-common\2.6.1\springfox-swagger-common-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-spring-web\2.6.1\springfox-spring-web-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\com\google\guava\guava\18.0\guava-18.0.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\classmate\1.4.0\classmate-1.4.0.jar;E:\software\apache-maven-3.8.1\repository\org\slf4j\slf4j-api\1.7.26\slf4j-api-1.7.26.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\plugin\spring-plugin-core\1.2.0.RELEASE\spring-plugin-core-1.2.0.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\plugin\spring-plugin-metadata\1.2.0.RELEASE\spring-plugin-metadata-1.2.0.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\mapstruct\mapstruct\1.0.0.Final\mapstruct-1.0.0.Final.jar;E:\software\apache-maven-3.8.1\repository\io\springfox\springfox-swagger-ui\2.6.1\springfox-swagger-ui-2.6.1.jar;E:\software\apache-maven-3.8.1\repository\com\xuxueli\xxl-job-core\2.3.0\xxl-job-core-2.3.0.jar;E:\software\apache-maven-3.8.1\repository\com\google\code\gson\gson\2.8.5\gson-2.8.5.jar;E:\software\apache-maven-3.8.1\repository\org\codehaus\groovy\groovy\2.5.7\groovy-2.5.7.jar;E:\software\apache-maven-3.8.1\repository\io\jsonwebtoken\jjwt\0.9.1\jjwt-0.9.1.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\jackson\core\jackson-databind\2.9.8\jackson-databind-2.9.8.jar;E:\software\apache-maven-3.8.1\repository\com\fasterxml\jackson\core\jackson-core\2.9.8\jackson-core-2.9.8.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-websocket\5.1.7.RELEASE\spring-websocket-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\spring-context\5.1.7.RELEASE\spring-context-5.1.7.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-starter-thymeleaf\2.1.5.RELEASE\spring-boot-starter-thymeleaf-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\thymeleaf\thymeleaf-spring5\3.0.11.RELEASE\thymeleaf-spring5-3.0.11.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\thymeleaf\thymeleaf\3.0.11.RELEASE\thymeleaf-3.0.11.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\attoparser\attoparser\2.0.5.RELEASE\attoparser-2.0.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\unbescape\unbescape\1.1.6.RELEASE\unbescape-1.1.6.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\thymeleaf\extras\thymeleaf-extras-java8time\3.0.4.RELEASE\thymeleaf-extras-java8time-3.0.4.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\io\netty\netty-all\4.1.53.Final\netty-all-4.1.53.Final.jar;E:\software\apache-maven-3.8.1\repository\com\sun\jna\jna\3.0.9\jna-3.0.9.jar;E:\software\apache-maven-3.8.1\repository\org\jboss\marshalling\jboss-marshall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n-3.8.1\repository\javax\ws\rs\javax.ws.rs-api\2.1\javax.ws.rs-api-2.1.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\media\jersey-media-jaxb\2.27\jersey-media-jaxb-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\containers\jersey-container-servlet-core\2.27\jersey-container-servlet-core-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\containers\jersey-container-servlet\2.27\jersey-container-servlet-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\ext\jersey-bean-validation\2.27\jersey-bean-validation-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\ext\jersey-spring4\2.27\jersey-spring4-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\inject\jersey-hk2\2.27\jersey-hk2-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2-locator\2.5.0-b42\hk2-locator-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\external\aopalliance-repackaged\2.5.0-b42\aopalliance-repackaged-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\javassist\javassist\3.22.0-CR2\javassist-3.22.0-CR2.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2\2.5.0-b42\hk2-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2-utils\2.5.0-b42\hk2-utils-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\javax\inject\javax.inject\1\javax.inject-1.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2-api\2.5.0-b42\hk2-api-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\config-types\2.5.0-b42\config-types-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2-core\2.5.0-b42\hk2-core-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2-config\2.5.0-b42\hk2-config-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\hk2-runlevel\2.5.0-b42\hk2-runlevel-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\class-model\2.5.0-b42\class-model-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\external\asm-all-repackaged\2.5.0-b42\asm-all-repackaged-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\hk2\spring-bridge\2.5.0-b42\spring-bridge-2.5.0-b42.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\media\jersey-media-json-jackson\2.27\jersey-media-json-jackson-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\glassfish\jersey\ext\jersey-entity-filtering\2.27\jersey-entity-filtering-2.27.jar;E:\software\apache-maven-3.8.1\repository\org\camunda\bpm\springboot\camunda-bpm-spring-boot-starter-webapp\7.16.0\camunda-bpm-spring-boot-starter-webapp-7.16.0.jar;E:\software\apache-maven-3.8.1\repository\org\camunda\bpm\springboot\camunda-bpm-spring-boot-starter-webapp-core\7.16.0\camunda-bpm-spring-boot-starter-webapp-core-7.16.0.jar;E:\software\apache-maven-3.8.1\repository\org\camunda\bpm\webapp\camunda-webapp\7.16.0\camunda-webapp-7.16.0-classes.jar;E:\software\apache-maven-3.8.1\repository\org\camunda\bpm\webapp\camunda-webapp-webjar\7.16.0\camunda-webapp-webjar-7.16.0.jar;E:\software\apache-maven-3.8.1\repository\io\projectreactor\reactor-core\3.1.4.RELEASE\reactor-core-3.1.4.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\reactivestreams\reactive-streams\1.0.2\reactive-streams-1.0.2.jar;E:\software\apache-maven-3.8.1\repository\io\projectreactor\reactor-test\3.1.4.RELEASE\reactor-test-3.1.4.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\cn\afterturn\easypoi-base\3.2.0\easypoi-base-3.2.0.jar;E:\software\apache-maven-3.8.1\repository\org\apache\poi\poi\3.15\poi-3.15.jar;E:\software\apache-maven-3.8.1\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;E:\software\apache-maven-3.8.1\repository\org\apache\commons\commons-collections4\4.1\commons-collections4-4.1.jar;E:\software\apache-maven-3.8.1\repository\org\apache\poi\poi-ooxml\3.15\poi-ooxml-3.15.jar;E:\software\apache-maven-3.8.1\repository\com\github\virtuald\curvesapi\1.04\curvesapi-1.04.jar;E:\software\apache-maven-3.8.1\repository\org\apache\poi\poi-ooxml-schemas\3.15\poi-ooxml-schemas-3.15.jar;E:\software\apache-maven-3.8.1\repository\org\apache\xmlbeans\xmlbeans\2.6.0\xmlbeans-2.6.0.jar;E:\software\apache-maven-3.8.1\repository\stax\stax-api\1.0.1\stax-api-1.0.1.jar;E:\software\apache-maven-3.8.1\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;E:\software\apache-maven-3.8.1\repository\cn\afterturn\easypoi-web\3.2.0\easypoi-web-3.2.0.jar;E:\software\apache-maven-3.8.1\repository\cn\afterturn\easypoi-annotation\3.2.0\easypoi-annotation-3.2.0.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot-devtools\2.1.5.RELEASE\spring-boot-devtools-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\org\springframework\boot\spring-boot\2.1.5.RELEASE\spring-boot-2.1.5.RELEASE.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\html2pdf\3.0.2\html2pdf-3.0.2.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\forms\7.1.13\forms-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\kernel\7.1.13\kernel-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\io\7.1.13\io-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\org\bouncycastle\bcpkix-jdk15on\1.64\bcpkix-jdk15on-1.64.jar;E:\software\apache-maven-3.8.1\repository\org\bouncycastle\bcprov-jdk15on\1.64\bcprov-jdk15on-1.64.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\layout\7.1.13\layout-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\svg\7.1.13\svg-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\styled-xml-parser\7.1.13\styled-xml-parser-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\com\itextpdf\font-asian\7.1.13\font-asian-7.1.13.jar;E:\software\apache-maven-3.8.1\repository\org\apache\pdfbox\pdfbox\2.0.4\pdfbox-2.0.4.jar;E:\software\apache-maven-3.8.1\repository\org\apache\pdfbox\fontbox\2.0.4\fontbox-2.0.4.jar;E:\software\apache-maven-3.8.1\repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;E:\software\apache-maven-3.8.1\repository\cn\hutool\hutool-all\4.1.19\hutool-all-4.1.19.jar" com.javafx.demo9.JavaFx
Exception in Application start method
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
	at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
	at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException: Location is required.
	at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3207)
	at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
	at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
	at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
	at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
	at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
	at com.javafx.demo9.JavaFx.start(JavaFx.java:25)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
	at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
	... 1 more
Exception running application com.javafx.demo9.JavaFx

Process finished with exit code 1

代码如下

package com.javafx.demo9;

import cn.hutool.core.io.resource.ResourceUtil;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

import javax.annotation.Resource;
import java.net.URL;

public class JavaFx extends Application {
    public static void main(String[] args) {
        Application.launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        URL resource = getClass().getResource("fxml/javaFX.fxml");
        if (resource == null) {
            System.out.println("hello null");
            System.exit(0);
        }
        Pane root = FXMLLoader.load(resource);
        Scene scene = new Scene(root, 500, 500);
        primaryStage.setScene(scene);
        primaryStage.setTitle("fxml布局文件的使用");
        primaryStage.show();
    }
}

试了很多办法，比如maven增加配置

 <resources>
            <resource>
                &lt;!&ndash; 这里是放在 src/main/java&ndash;&gt;
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.fxml</include>
                    <include>**/fxml/*.fxml</include>
                    &lt;!&ndash; 如果想要弄个包名专门放fxml文件，像上一行这样添加设置 &ndash;&gt;
                    &lt;!&ndash; 之后，使用getResource("fxml/xx.fxml")这样子 &ndash;&gt;
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>

比如修改路径

URL resource = getClass().getResource("fxml/javaFX.fxml");
URL resource = getClass().getResource("main/resources/fxml/javaFX.fxml");

最后是改用hutool的工具类，就好了

URL resource = ResourceUtil.getResource("fxml/javaFX.fxml");

祝你学习顺利，我javafx的同路人