tomcat 500 错误are allowed only at source level 1.8 or above

发布于:2025-06-24 ⋅ 阅读:(15) ⋅ 点赞:(0)

ide: eclipse
java web项目,需要导出war项目,然后放到服务器运行,然后在客户端打开url,结果500

错误为:

Unresolved compilation problems:
Lambda expressions are allowed only at source level 1.8 or above
Cannot refer to the non-final local variable response defined in an enclosing scope

这个错误出现的原因是:java版本不对
首先检查右键项目 - properties
在这里插入图片描述

然后检查windows - preferences
在这里插入图片描述

接着检查项目右键
在这里插入图片描述

最后检查右键项目 - project facets :
在这里插入图片描述

不得不说eclipse里面关于java版本的事还是挺多的
真是无语他爸给无语开门,无语到家了

网页输出完整500错误:

HTTP Status 500 – Internal Server Error
Type Exception Report

Message Servlet.init() for servlet [dispatcherServlet] threw exception

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: Servlet.init() for servlet [dispatcherServlet] threw exception
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1732)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:121)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:114)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker.invokeDirect(Invoker.java:157)
	sun.nio.ch.UnixAsynchronousSocketChannelImpl.implWrite(UnixAsynchronousSocketChannelImpl.java:736)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:382)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:399)
	org.apache.tomcat.util.net.SecureNio2Channel.handshakeInternal(SecureNio2Channel.java:302)
	org.apache.tomcat.util.net.SecureNio2Channel.handshake(SecureNio2Channel.java:222)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1709)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:104)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:97)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker$2.run(Invoker.java:218)
	sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:750)
Root Cause

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'strategyMarketController' defined in class path resource [spring/spring-mvc.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.pobo.controller.StrategyMarketController]: Constructor threw exception; nested exception is java.lang.Error: Unresolved compilation problems: 
	Lambda expressions are allowed only at source level 1.8 or above
	Cannot refer to the non-final local variable response defined in an enclosing scope

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1101)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
	org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
	org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
	org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	javax.servlet.GenericServlet.init(GenericServlet.java:143)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1732)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:121)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:114)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker.invokeDirect(Invoker.java:157)
	sun.nio.ch.UnixAsynchronousSocketChannelImpl.implWrite(UnixAsynchronousSocketChannelImpl.java:736)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:382)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:399)
	org.apache.tomcat.util.net.SecureNio2Channel.handshakeInternal(SecureNio2Channel.java:302)
	org.apache.tomcat.util.net.SecureNio2Channel.handshake(SecureNio2Channel.java:222)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1709)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:104)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:97)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker$2.run(Invoker.java:218)
	sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:750)
Root Cause

org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.pobo.controller.StrategyMarketController]: Constructor threw exception; nested exception is java.lang.Error: Unresolved compilation problems: 
	Lambda expressions are allowed only at source level 1.8 or above
	Cannot refer to the non-final local variable response defined in an enclosing scope

	org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:163)
	org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1094)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
	org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
	org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
	org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	javax.servlet.GenericServlet.init(GenericServlet.java:143)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1732)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:121)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:114)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker.invokeDirect(Invoker.java:157)
	sun.nio.ch.UnixAsynchronousSocketChannelImpl.implWrite(UnixAsynchronousSocketChannelImpl.java:736)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:382)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:399)
	org.apache.tomcat.util.net.SecureNio2Channel.handshakeInternal(SecureNio2Channel.java:302)
	org.apache.tomcat.util.net.SecureNio2Channel.handshake(SecureNio2Channel.java:222)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1709)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:104)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:97)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker$2.run(Invoker.java:218)
	sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:750)
Root Cause

java.lang.Error: Unresolved compilation problems: 
	Lambda expressions are allowed only at source level 1.8 or above
	Cannot refer to the non-final local variable response defined in an enclosing scope

	com.pobo.controller.StrategyMarketController.<init>(StrategyMarketController.java:139)
	sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147)
	org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1094)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
	org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
	org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
	org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	javax.servlet.GenericServlet.init(GenericServlet.java:143)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1732)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:121)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeWriteCompletionHandler.completed(SecureNio2Channel.java:114)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker.invokeDirect(Invoker.java:157)
	sun.nio.ch.UnixAsynchronousSocketChannelImpl.implWrite(UnixAsynchronousSocketChannelImpl.java:736)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:382)
	sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:399)
	org.apache.tomcat.util.net.SecureNio2Channel.handshakeInternal(SecureNio2Channel.java:302)
	org.apache.tomcat.util.net.SecureNio2Channel.handshake(SecureNio2Channel.java:222)
	org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1709)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:1289)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:104)
	org.apache.tomcat.util.net.SecureNio2Channel$HandshakeReadCompletionHandler.completed(SecureNio2Channel.java:97)
	sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	sun.nio.ch.Invoker$2.run(Invoker.java:218)
	sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:750)
Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat/9.0.81

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