解决spring boot启动报错java.lang.NoClassDefFoundError: ch/qos/logback/classic/Level 学习了:https://blog.csdn.net/yunfeng482/article/details/78106433 没想到啊:我都看见了,idea也反编不了: 没想到要重新下载啊:…

项目运行一直很平稳,但是换了tomcat之后打开jsp网页时就报错,描述如下: 1. 错误描述 打开jsp网页时报错 java.lang.NullPointerException     org.apache.jsp.WEB_002dINF.pages.imagecheck.test_jsp._jspInit(test_jsp.java:22)   或 java.lang.ClassNotFoundException: org.apache.jsp.index_jsp   2. 原因 由于tom…

错误如下: -- ::,-[TS] INFO http-- org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@b914b3: defining beans [dataSource,jdbcTemplate,xxtsSer…

严重: Context initialization failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.validation.beanvalidation.OptionalValidatorFactoryBean#0': Invocation of init method failed; nested exception…

之前tomcat启动老是报错,虽然不影响项目的启动运行,但是有强迫症的程序员会心里不爽: 问题是由于本机安装的jdk版本与tomcat中使用的jdk版本不一致导致的. 后面我把原先tomcat启动环境用的jdk1.7改为了本机安装的jdk1.8就不在报错. 具体过程:在myeclipse中点击window→preference→在搜索框中输入Tomcat→选择安装的tomcat版本,我这里是选择Tomcat 7.x→点击JDK→在Tomcat 7.x JDK name:下拉选项中选择在本机中安装…

tomcat启动错误提示: 严重: Error waiting for multi-thread deployment of WAR files to completejava.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: PermGen space Caused by: java.lang.OutOfMemoryError: PermGen space 解决方法: 手动设置MaxPermSize大小 在tomca…

 报这个错说明用的是tomcat7 打开myeclipse,Preferentces->MyEclipse->Servers->Tomcat->Tomcat 6.x ,载入Tomcat7,在"Paths"下.点击"Add JAR/ZIP",载入tomcat7下的--/bin/tomcat-juli.jar.点击"OK".…

前言:项目在 spring-mvc.xml 文件中配置了上传文件拦截,结果启动报错 java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory 配置如下: <!-- 配置上传文件拦截,设置最大上传文件大小,和最大内存大小 --> <bean id="multipartResolver" name="multipartResolver" class=&qu…

spring boot启动STS 运行报错 java.lang.NoClassDefFoundError: ch/qos/logback/classic/LoggerContext 学习了: http://ask.csdn.net/questions/381580 http://blog.csdn.net/liuxiangke0210/article/details/77893560?locationNum=2&fps=1 增加了: <dependency> <groupId&g…

Intellij IDEA 报错java.lang.NoClassDefFoundError 11-Aug-2018 23:48:24.686 严重 [http-nio-8080-exec-5] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [com.wbg.testservlet] in context with path [] threw exception [Servle…