graphql/execution/instrumentation/SimpleInstrumentation (GraphQL和Spring )

Question

我正在试验GraphQL和Spring，当我尝试运行我的GraphQL查询时，我得到了下一个错误：(Graphiql加载很好)

graphql/execution/instrumentation/SimpleInstrumentation :java.lang.NoClassDefFoundError

POM依赖关系：

<dependency>
        <groupId>com.graphql-java</groupId>
        <artifactId>graphql-spring-boot-starter</artifactId>
        <version>5.0.2</version>
    </dependency>
    <dependency>
        <groupId>com.graphql-java</groupId>
        <artifactId>graphql-java-tools</artifactId>
        <version>4.3.0</version>
    </dependency>
    <dependency>
        <groupId>com.graphql-java</groupId>
        <artifactId>graphiql-spring-boot-starter</artifactId>
        <version>4.0.0</version>
</dependency>

这是个例外：

java.lang.NoClassDefFoundError: graphql/execution/instrumentation/SimpleInstrumentation
at graphql.servlet.GraphQLQueryInvoker$Builder.lambda$new$0(GraphQLQueryInvoker.java:101) ~[graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.GraphQLQueryInvoker.getInstrumentation(GraphQLQueryInvoker.java:72) ~[graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.GraphQLQueryInvoker.newGraphQL(GraphQLQueryInvoker.java:57) ~[graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.GraphQLQueryInvoker.query(GraphQLQueryInvoker.java:92) ~[graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.GraphQLQueryInvoker.query(GraphQLQueryInvoker.java:88) ~[graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.GraphQLQueryInvoker.query(GraphQLQueryInvoker.java:39) ~[graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.AbstractGraphQLHttpServlet.query(AbstractGraphQLHttpServlet.java:265) [graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.AbstractGraphQLHttpServlet.lambda$new$2(AbstractGraphQLHttpServlet.java:183) [graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.AbstractGraphQLHttpServlet.doRequest(AbstractGraphQLHttpServlet.java:236) [graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.AbstractGraphQLHttpServlet.doRequestAsync(AbstractGraphQLHttpServlet.java:227) [graphql-java-servlet-6.1.2.jar:na]
at graphql.servlet.AbstractGraphQLHttpServlet.doPost(AbstractGraphQLHttpServlet.java:257) [graphql-java-servlet-6.1.2.jar:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) [tomcat-embed-core-9.0.26.jar:9.0.26]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:97) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ....
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) [na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.26.jar:9.0.26]
at java.base/java.lang.Thread.run(Thread.java:844) [na:na]
Caused by: java.lang.ClassNotFoundException: graphql.execution.instrumentation.SimpleInstrumentation
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499) ~[na:na]
... 54 common frames omitted

Answer 1

graphql-spring-boot-starter和graphql-java-tools都将在引擎盖下包括graphql-java。它们现在都包含了不同的版本。

一个包括6.0，另一个包括9.2。6.0是以某种方式生效的，这是一个非常老的版本，SimpleInstrumentation是在这个版本之后添加的，因此NoClassDefFoundError就会发生。

简单地说，就是升级graphql-spring-boot-starter和graphql-java-tools的版本，使它们使用相同版本的graphql-java。

您可以使用mvn dependency:tree检查包含哪个版本的graphql-java。