java.lang.ClassCastException: com.sun.proxy.$Proxy* cannot be cast to***问题解决方案 临床表现: 病例: 定义代理类: @Transactional @Repository public UserDaoImpl implements UserDao extends BaseDaoImpl{ /*没有实现任何接口*/ } 获取代理类: ApplicationContext ctx = new ClassPathXmlAppli…

一.错误信息 java.lang.ClassCastException: org.slf4j.impl.Log4jLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContextat ch.qos.logback.ext.spring.LogbackConfigurer.initLogging(LogbackConfigurer.java:72)at ch.qos.logback.ext.spring.web.WebLogb…

java.lang.ClassCastException: com.sun.proxy.$Proxy32 cannot be cast to com.bkc.bpmp.core.cache.MemcachedManager at com.bkc.bpmp.common.utils.CacheUtils.<clinit>(CacheUtils.java:11) at com.bkc.bpmp.modules.sys.controller.MainController.showCache(Main…

代码如下: final Connection conn=pool.remove(0); //利用动态代理改造close方法 Connection proxy= (Connection) Proxy.newProxyInstance(conn.getClass().getClassLoader(), conn.getClass().getInterfaces(), new InvocationHandler() { @Override public Object invoke(Object pro…

异常: Exception in thread "main" java.lang.ClassCastException: com.sun.proxy.$Proxy2 cannot be cast to com.pro.service.impl.UserServiceImpl at com.pro.test.TestSpring.main(TestSpring.java:12) 一.抛异常的工程 定义Service层接口 package com.pro.service; /** * 用户…

今天在部署WebLogic项目时,报了java.lang.ClassCastException: weblogic.xml.jaxp.RegistrySAXParserFactory cannot be cast to javax.xml.parsers.SAXParserFactory异常. 查询报错原因后,发现该异常是由Jar包冲突导致的. 大多数开发人员在本地使用Tomcat开发,而Tomcat中并没有此Jar包,需要添加JAR包xml-apis.jar:然鹅WebLogic却自带该Jar…

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…

这个异常是在开发Spring案例时遇到的. 贴一下完整异常信息: Exception in thread "main" java.lang.ClassCastException: com.sun.proxy.$Proxy4 cannot be cast to com.edu.aop.ArithmeticCalculatorImpl at com.edu.aop.Main.main(Main.java:11) 原因:Spring AOP是实现AOP的一种技术,是采用“动态代理技术”实现的…

1 严重: Servlet /N002-1.0 threw load() exception 2 java.lang.ClassCastException: com.sun.proxy.$Proxy27 cannot be cast to com.bbk.n002.service.QuestionService 3 at com.bbk.n002.servlet.CreateTaskQueueServlet.init(CreateTaskQueueServlet.java:28) 4 at ja…