springboot 2.0.5 部署 war包放到tomcat7.0下运行，遇到问题_factory method 'defaultvalidator' threw exception;-优快云博客

本文链接：https://blog.youkuaiyun.com/dxyzhbb/article/details/109113916

本文档详细介绍了在SpringBoot 2.0.5版本中，如何解决与Tomcat 7的兼容问题，包括需要降低`spring-boot-starter-web`版本和移除`tomcat-embed-jasper`依赖。此外，还分析了由于EL API版本过低导致的NoClassDefFoundError，并提供了解决方案，即通过设置`tomcat-embed-jasper`的scope为`provided`来依赖外部Tomcat容器提供的JSP支持。同时，日志中显示了一个LogInterceptor的空指针异常，这可能是由于在拦截器中某个对象未初始化导致的。

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前言：springboot 2.0.5版本与tomcat7兼容，需要降低 spring-boot-starter-web版本，并且需要将tomcat-embed-jasper包剔除。不然无法正常启动
报错代码1：
Factory method ‘defaultValidator’ threw exception; nested exception is java.lang.NoClassDefFoundErr
在这里插入图片描述
tomcat7运行报错：

解决：

tomcat7运行正确

原因： tomcat7中的el-api，版本太低

报错2：
Caused by: java.lang.NoClassDefFoundError: org/apache/tomcat/util/descriptor/tld/TldParser
最近尝试着用spring boot ，页面模版使用的jsp，在pom里配置了对jsp的支持：

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
</dependency>

发现tomcat启动的时候报错：

?? 26, 2017 2:20:19 ?? org.apache.catalina.core.ContainerBase addChildInternal
??: ContainerBase.addChild: start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
    at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1863)
    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 org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:618)
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:565)
    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 org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
    at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
    at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
    at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
    at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
    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.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:346)
    at sun.rmi.transport.Transport$1.run(Transport.java:200)
    at sun.rmi.transport.Transport$1.run(Transport.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: org/apache/tomcat/util/descriptor/tld/TldParser
at org.apache.jasper.servlet.TldScanner.<init>(TldScanner.java:84)
at org.apache.jasper.servlet.JasperInitializer.newTldScanner(JasperInitializer.java:118)
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:99)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5623)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    ... 42 more
Caused by: java.lang.ClassNotFoundException: org.apache.tomcat.util.descriptor.tld.TldParser
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
    ... 47 more

原因还是依赖了spring boot 内部提供的tomcat的问题，将上面pom的配置改成下面这样即可（作用域设置成依赖外部tomcat容器提供的jsp）：

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>

另外，如果在使用idea内置的tomcat启动的话，将 provided去除掉。不然会启动项目后访问报
在这里插入图片描述
这个错误。
日志拦截器空指针：

2022-01-14 14:50:05.943  INFO 26176 --- [nio-8080-exec-3] controller-log                           : URI: /WEB-INF/views/modules/main/login.jsp,耗时：0:0:0.4   
2022-01-14 14:50:05.946 ERROR 26176 --- [nio-8080-exec-3] o.s.web.servlet.HandlerExecutionChain    : HandlerInterceptor.afterCompletion threw exception

java.lang.NullPointerException: null
 at com.javafast.modules.sys.interceptor.LogInterceptor.afterCompletion(LogInterceptor.java:41)
 at com.javafast.modules.sys.interceptor.LogInterceptor$$FastClassBySpringCGLIB$$4de8c255.invoke(<generated>)
 at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
 at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
 at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
 at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
 at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
 at com.javafast.modules.sys.interceptor.LogInterceptor$$EnhancerBySpringCGLIB$$84a73be4.afterCompletion(<generated>)
 at com.javafast.modules.sys.interceptor.LogInterceptor$$FastClassBySpringCGLIB$$4de8c255.invoke(<generated>)
 at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
 at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
 at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
 at org.springframework.transaction.interceptor.TransactionIntercept