严重: Failed to initialize end point associated with ProtocolHandler ["http-bio-8080"] java.net.BindException: Address already in use <null>:8080 at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:407) at org.apache.tomcat.util.…

A child container failed during startjava.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/book_shop]] at java.util.concurrent.Futur…

原因:jar包发生冲突.在我的pom.xml文件中 <dependency>      <groupId>javax.servlet</groupId>      <artifactId>javax.servlet-api</artifactId>      <version>3.1.0</version>  </dependency> 当程序运行时与tomcat中的jar包冲突了,只需要它在测试.编译阶段有用…

java.lang.ClassCastException: cn.itcase.serviceImpl.servicestudentImpl cannot be cast to javax.servlet.Servlet 可能原因(1)因为这个只不过是一个是实现类而已,它本身是不能访问的,只有通过servlet来调用这些方法,并用doGet()或者doPost()方法来实现才是可以的 可能原因2:servicestudentImpl本来需要 extends HttpServlet但是没有继承…

java.lang.ClassCastException: org.springframework.web.filter.CharacterEncodingFilter cannot be cast to javax.servlet.Filter    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)    at org.apache.catalina.c…

1.错误描述 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/smp]] at java.util.concurre…

又是一个报错,我写代码真的是可以,所有的bug都会被我遇到,所有的问题我都能踩一遍,以前上学的时候同学就喜欢问我问题,因为他们遇到的问题,我早就遇到了......... 看看报错内容: 2019-04-04 12:01:39.612 ERROR 12628 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed java.lang.IllegalStateException: Error processin…

严重: Exception starting filter encodingFilterjava.lang.ClassCastException: org.springframework.web.filter.CharacterEncodingFilter cannot be cast to javax.servlet.Filterat org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConf…

Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/web/socket/server/standard/ServerEndpointExporter    at java.lang.Class.getDeclaredMethods0(Native Method)    at java.lang.Class.privateGetDeclaredMethods(Class.java:…

说明项目没有加载jar包 异常:Caused by: java.lang.NoClassDefFoundError: org/springframework/web/context/WebApplicationContext 解决方案:对着工程点右键->Properties ->MyEclipse-> Deployment Assembly -> Add--> Folder -->选择 lib(eclipse中位于webContent下,myeclipse中位于webR…