springmvc 链接数据库错误

1. Caused by: org.xml.sax.SAXParseException: cos-all-limited.1.2: An ''all'' model group must appear in a particle with '{'min occurs'}'='{'max occurs'}'=1, and that particle must be part of a pair which constitutes the '{'content type'}'

是因为包不匹配

应该是

 xerces:xercesImpl:jar:2.6.2:test 

commons-dbcp:commons-dbcp:jar:1.2.2:test 

2.

java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource解决方法

只需把这三个commons-pool.jar、commons-dbcp-1.2.2.jar和commons-collections-3.2.jar包加入到lib里即可解决。