java.lang.ClassNotFoundException与java.lang.NoClassDefFoundError的区别   以前一直没有注意过这个问题,前两天机缘巧合上网查了一下,然后自己测试验证了一下.虽然网上说法很多,但是关于NoClassDefFoundError并没有给出一个样例,所以一直无法理解,索性自己验证了一下,收获还不少. ClassNotFoundException ClassNotFoundException这个错误,比较常见也好理解. 原因:就是找不到指定的c…

1.错误描述 INFO:2015-05-01 11:12:15[localhost-startStop-1] - Root WebApplicationContext: initialization started INFO:2015-05-01 11:12:15[localhost-startStop-1] - Refreshing Root WebApplicationContext: startup date [Fri May 01 11:12:15 CST 2015]; root of…

记录自己出现的问题,Spring AOP 使用测试类测试没问题,在SpringMVC启动服务器时出现java lang classnotfoundexception org aspectj lang joinpoint错误,开始以为是包错误,最后发现是因为IDEA配置问题导致.把右侧未添加的包双击移到左边,重新启动服务器,启动正常.…

java里生成对象有如下两种方式: 1: Object obj = new ClassName(); 直接new一个对象 2: Class clazz = Class.forName(ClassName); Object obj = clazz.newInstance(); 通过class loader动态装载一个类,然后获取这个类的实例同样是生成对象, 1  在编译期间检查classpath, 如果没有类定义,编译没法通过. 2  在编译期间是不会检查的,不过需要抛出或者自己catch Cla…

ClassNotFoundException ClassNotFoundException这个错误,比较常见也好理解. 原因:就是找不到指定的class. 常见的场景就是: 1 调用class的forName方法时,找不到指定的类 2 ClassLoader 中的 findSystemClass() 方法时,找不到指定的类 3 ClassLoader 中的 loadClass() 方法时,找不到指定的类 java.lang.Class.java: /** * Returns the <code>…

一.Java介绍 关于Java的诞生和发展网上比较多,在此就不再赘述了,可以参考http://i.cnblogs.com/EditArticles.aspx?postid=4050233. 1.1 Java的开发平台JDK 1.1.1 JDK 1.0----JRE+JDK 1995年,Sun虽然推出了Java,但这只是一种语言,如果想开发复杂的应用程序,必须要有一个强大的开发年初发布了JDK 1.0.这是Sun公司发布的第一版JDK,这个版本包括两部分: JRE 运行环境(Java Runtim…

2016-05-18 15:44:25 ERROR Dispatcher.error[user:|url:]:L38 - Dispatcher initialization failed Unable to load configuration. - bean - jar:file:/F:/maven3.1/repository/org/apache/struts/struts2-rest-plugin/2.3.16/struts2-rest-plugin-2.3.16.jar!/struts-…

WARNING: Failed to register in JMX: javax.naming.NamingException: Could not load resource factory class [Root exception is java.lang.ClassNotFoundException: org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory] 十二月 24, 2015 10:43:49 下午 org.apache.catal…

Caused by: java.lang.NoClassDefFoundError: org/hibernate/annotations/common/reflection/MetadataProvider    at java.lang.Class.getDeclaredConstructors0(Native Method)    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)    at java.lan…

Exception in thread "main" java.lang.NoClassDefFoundError: javax/persistence/EntityListeners at org.hibernate.cfg.annotations.reflection.JPAMetadataProvider.getDefaults(JPAMetadataProvider.java:96) at org.hibernate.annotations.common.reflection.…

1.错误叙述性说明 警告: Could not create JarEntryRevision for [jar:file:/D:/MyEclipse/apache-tomcat-7.0.53/webapps/FirstSSH/WEB-INF/lib/struts2-core-2.3.16.3.jar]! java.lang.NoClassDefFoundError: org/apache/commons/io/FileUtils at com.opensymphony.xwork2.util.…

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…

java.lang.ClassNotFoundException: javax.servlet.Filter:有两个原因:(1)在maven中的作用域,不能是provided,需要是compile就是默认的scope(2)spring-boot-starter-tomcat的版本bug,换个新的或旧的版本试试 I Started a new project with Spring Boot 1.2.3. I'm getting error java.lang.NoClassDefFoundErr…

1.错误叙述性说明 2014-7-10 23:12:23 org.apache.catalina.core.StandardContext filterStart 严重: Exception starting filter struts2 java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils at com.opensymphony.xwork2.config.providers.XmlConfigurationP…

1.错误描写叙述 信息: Setting autowire strategy to name 2014-7-13 1:37:43 org.apache.struts2.spring.StrutsSpringObjectFactory info 信息: ... initialized Struts-Spring integration successfully 2014-7-13 1:37:44 org.apache.catalina.core.StandardContext filterStar…

1.错误叙述性说明 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 14:54:49 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 us…

1.错误叙述性说明 2014-7-12 0:38:57 org.apache.catalina.core.ApplicationContext log 信息: No Spring WebApplicationInitializer types detected on classpath 2014-7-12 0:38:57 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context ini…

1.错误描写叙述 信息: Initializing c3p0-0.9.2.1 [built 20-March-2013 10:47:27 +0000; debug? true; trace: 10] 2014-7-12 19:18:48 org.springframework.web.context.ContextLoader initWebApplicationContext 严重: Context initialization failed org.springframework.beans…

转自:http://blog.csdn.net/zb0567/article/details/7893063 java.lang.ClassNotFoundException: org.apache.commons.lang.exception.NestableRuntimeException 遇到这种问题是因为jar包不全,应该包含 commons-lang-2.5.jar ezmorph-1.0.6.jar json-lib-2.3-jdk15.jar 但是又出现如下问题: java.lan…

严重: A child container failed during startjava.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/wujie-platform]] at java.util.concu…

报错原因 上文本描述 java.lang.NoClassDefFoundError: org/aspectj/weaver/BCException at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2531) at java.lang.Class.getDeclaredMethods(Class.java:1855) at or…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 0:44:33 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 0:25:53 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-10 23:23:53 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-10 23:00:04 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher at com.you.utils.DoubleYaxis.main(DoubleYaxis.java:81) Caused by: java.lang.ClassNotFoundException: net.sf.ezmorph.Morpher at java.net.URLClassLoader$1.run(…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 15:02:17 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 14:19:28 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 0:59:34 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

1.错误描述 2014-7-13 1:45:53 org.apache.struts2.spring.StrutsSpringObjectFactory info 信息: ... initialized Struts-Spring integration successfully 2014-7-13 1:45:54 org.apache.catalina.core.StandardContext filterStart 严重: Exception starting filter struts2…