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…

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…

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…

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…

http://www.apache.org/dist/tomcat/tomcat-connectors/native/ 到该地址下下载一个tomcat-native-1.2.2-win32-bin压缩包,选择里边的一个64位tcnative-1.dll覆盖tomcat中bin目录下的tcnative-1.dll文件即可 再次运行即不会报错了. 删除了或者是覆盖了tcnative-1.dll还是不行 安装32bit的myeclipse2015看看吧…

主要原因是maven项目里面的jar包吗,没有导入到项目中 maven web 项目中启动报错 Java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet 错误描述: Java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet 问题解析: Maven项目中所有依赖(jdk/jar/c…

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:…

springboot测试启动报错: java.lang.IllegalStateException: Unable to find a @SpringBootConfiguration, you need to use @ContextConfiguration or @SpringBootTest(classes=...) with your test 解决:注意springboot启动类Application要和测试类在同一级包下…

报错: java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Thu Nov 27 08:53:38 CST 2014]; root of context hierarchy 解决: 先关闭tomc…