Caused by: org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file
阿新 • • 發佈：2022-05-17
-
學習SpringMVC
執行環境
-
jdk版本：jdk-16.0.2
-
Idea版本：2021.2
-
電腦系統：win10
環境搭建
-
建立Maven專案。點選Maven專案建立時候的
create from archetype，選擇Maven裡面的模板即可，選擇org.apache.maven.archetypes:maven-archetype-webapp； -
因為建立的目錄結構不全，所以我們需要手動補全java資料夾。點選
file-->Project Structure-->Moudles，在Moudles中選擇剛剛建立的專案，看看src資料夾下面的main資料夾下面是否存在java資料夾。如果沒有則需要手動新增：右鍵main資料夾，選擇new folder，在出現的方框中輸入java。就會建立一個java資料夾。
-
將pom.xml中多餘的內容刪除掉，再新增SpringMVC需要的依賴。在
pom.xml檔案中新增SpringMVC所需要的jar包以及Tomcat執行所需要的外掛，最後pom.xml檔案內容如下：<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.linxuan</groupId> <artifactId>springmvc01</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.2.10.RELEASE</version> </dependency> </dependencies> <build> <plugins> <!--用來快速部署並啟動Maven專案，tomcat7-maven-plugin是maven中整合tomcat容器的一個外掛--> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.1</version> <configuration> <port>80</port> <path>/</path> </configuration> </plugin> </plugins> </build> </project> -
建立配置類
package com.linxuan.config; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; @Configuration @ComponentScan("com.linxuan.controller") public class SpringMvcConfig { } -
建立Controller類
package com.linxuan.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; @Controller public class UserController { @RequestMapping("/save") // 設定返回資料為json @ResponseBody public String save() { System.out.println("user save..."); return "{'info':'springmvc'}"; } } -
使用配置類替換
web.xml。將web.xml刪除，換成ServletContainersInitConfigpackage com.linxuan.config; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.AnnotationConfigWebApplicationContext; import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer; public class ServletContainersInitConfig extends AbstractDispatcherServletInitializer { //載入springmvc配置類 protected WebApplicationContext createServletApplicationContext() { //初始化WebApplicationContext物件 AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext(); //載入指定配置類 ctx.register(SpringMvcConfig.class); return ctx; } //設定由springmvc控制器處理的請求對映路徑 protected String[] getServletMappings() { return new String[]{"/"}; } //載入spring配置類 protected WebApplicationContext createRootApplicationContext() { return null; } } -
配置Tomcat
-
執行發現報錯
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\Java\IdeaProjects\ssm\springmvc01\target\classes\com\linxuan\controller\UserController.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\Java\IdeaProjects\ssm\springmvc01\target\classes\com\linxuan\controller\UserController.class]; nested exception is java.lang.IllegalArgumentException: Unsupported class file major version 60 at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:452) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:315) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:276) at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:132) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:296) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:250) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:207) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:175) at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:280) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:96) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:707) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:533) at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:578) at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530) at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170) at javax.servlet.GenericServlet.init(GenericServlet.java:160) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1091) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5033) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5317) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at java.base/java.lang.Thread.run(Thread.java:831) Caused by: org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\Java\IdeaProjects\ssm\springmvc01\target\classes\com\linxuan\controller\UserController.class]; nested exception is java.lang.IllegalArgumentException: Unsupported class file major version 60 at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:60) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:49) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:123) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:429) ... 29 more Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 60 at org.springframework.asm.ClassReader.<init>(ClassReader.java:196) at org.springframework.asm.ClassReader.<init>(ClassReader.java:177) at org.springframework.asm.ClassReader.<init>(ClassReader.java:163) at org.springframework.asm.ClassReader.<init>(ClassReader.java:284) at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:57) ... 33 more 5月 16, 2022 10:53:41 下午 org.apache.catalina.core.StandardContext loadOnStartup 嚴重: Servlet threw load() exception java.lang.IllegalArgumentException: Unsupported class file major version 60 at org.springframework.asm.ClassReader.<init>(ClassReader.java:196) at org.springframework.asm.ClassReader.<init>(ClassReader.java:177) at org.springframework.asm.ClassReader.<init>(ClassReader.java:163) at org.springframework.asm.ClassReader.<init>(ClassReader.java:284) at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:57) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:49) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:123) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:429) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:315) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:276) at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:132) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:296) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:250) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:207) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:175) at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:280) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:96) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:707) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:533) at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:578) at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530) at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170) at javax.servlet.GenericServlet.init(GenericServlet.java:160) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1091) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5033) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5317) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at java.base/java.lang.Thread.run(Thread.java:831) 5月 16, 2022 10:53:41 下午 org.apache.coyote.AbstractProtocol start 資訊: Starting ProtocolHandler ["http-bio-80"] ERROR: IllegalAccessException for stop method in class org.apache.tomcat.maven.plugin.tomcat7.run.ExtendedTomcat java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.apache.tomcat.maven.common.run.EmbeddedRegistry.shutdownAll(EmbeddedRegistry.java:110) at org.apache.tomcat.maven.common.run.EmbeddedRegistry$1.run(EmbeddedRegistry.java:69) Caused by: org.apache.catalina.LifecycleException: Failed to stop component [StandardServer[-1]] at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236) at org.apache.catalina.startup.Tomcat.stop(Tomcat.java:345) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to stop component [StandardService[Tomcat]] at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236) at org.apache.catalina.core.StandardServer.stopInternal(StandardServer.java:753) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) ... 7 more Caused by: org.apache.catalina.LifecycleException: Failed to stop component [StandardEngine[Tomcat]] at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236) at org.apache.catalina.core.StandardService.stopInternal(StandardService.java:502) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) ... 9 more Caused by: org.apache.catalina.LifecycleException: A child container failed during stop at org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:1186) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) ... 11 more Process finished with exit code 130
問題補救
-
嘗試將jdk版本降至1.8，將下面程式碼加入pom.xml檔案中
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build>結果：沒有任何作用，還是顯示上述報錯資訊。
-
不用Tomcat7外掛，用電腦下載的Tomcat，我這裡電腦本地下載的Tomcat版本為8.5.75。
現在pom.xml檔案內容如下
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.linxuan</groupId> <artifactId>springmvc01</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.2.10.RELEASE</version> </dependency> </dependencies> <build> <!--外掛--> <plugins> <!--用來快速部署並啟動Maven專案，tomcat7-maven-plugin是maven中整合tomcat容器的一個外掛--> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.1</version> <configuration> <port>80</port> <path>/</path> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build> </project> -
將上述的外掛註釋掉，然後使用電腦本地下載的Tomcat執行，結果發現報錯
錯誤: 不支援發行版本 5 Language level is invalid or missing in pom.xml. Current project JDK is 16. Specify language level in springmvc01
檢視，果然jdk版本莫名的變成了1.5
我們再使用外掛將jdk升至1.8，將下述內容加至pom.xml檔案中。
<build> <!--外掛--> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build> -
再執行，依然發現報錯，報錯資訊如下
Caused by: java.lang.IllegalArgumentException: 找到多個名為spring_web的片段。這是不合法的相對排序。
我們匯入的spring_web jar包重複了，所以需要刪除一個
-
再點選執行，就可以了。總的來說也就是版本不匹配的問題，多調一下版本就可以了。