java常见错误以及可能原因集锦
</list>
</bean>
<bean id="transactionAdvisor" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
<property name="advice">
<ref bean="advice"/>
</property>
<property name="mappedNames">
<list>
<value>transfer</value>
</list>
</bean>
35,SQLException: Syntax error: Encountered "table" at line 1, column 8.
可能1;执行SQL时出现冲突,可能是SQL语句中使用了关键字作为变量来用,比如
update order set balance=1000000;
其中order被用作表名来使用,这是错误的,因为order是个关键字,用在order by中
36, Servlet /Spring-WebMvc threw load() exception
org.xml.sax.SAXParseException: Document root element "beans", must match DOCTYPE root "null".
jar包的冲突,spring-1.2.6.jar和spring.jar出现在一个war的目录中:JBoss/server/all/deploy/Spring-WebMvc.war/WEB-INF/lib
37, java.sql.SQLException: 当事务仍处于活动状态时，无法关闭连接。
38 ,
validateJarFile(/home/soft01/Tomcat/webapps/sms-token-struts/WEB-INF/lib/servlet-api.jar)
Servlet /sms-struts-tiles threw load() exception
java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet
原因:在WEB-INF/lib/ 目录下有servlet-api.jar与/Tomcat/common/lib目录下的servlet-api.jar冲突了,把WEB-INF/lib/下的servlet-api.jar删除就可以了
39,java.lang.ClassNotFoundException: org.springframework.web.struts.ContextLoaderPlugIn
Marking servlet action as unavailable
10:30:47,088 ERROR [/NetCT_OSS]:3953 - Servlet /NetCT_OSS threw load() exception
javax.servlet.UnavailableException
40,org.xml.sax.SAXParseException: Document root element "beans", must match DOCTYPE root "null".
缺少MyEclipse/eclipse/plugins/com.genuitec.eclipse.springframework_5.5.0/data/2.0/dist/modules/spring-struts.jar
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