tomcat 启动报错 解决办法 A child container failed during

转自：http://blog.sina.com.cn/s/blog_4e1e357d0102v55c.html

控制台报错：

Caused by: org.apache.catalina.LifecycleException: A child container failed during start

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)

at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

... 11 more

解决办法，把web.xml里面配置的version从3.0改成2.5

 

xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
>>

改成

xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
>也可以解决tomcat启动报上面异常的问题，但是目前没有测试别的功能是否会被影响，妥当的就是先删掉那些包把，第二种在测试下