jetty启动一直输出日志，无法成功启动的办法

2014-07-08 16:15:09.494 DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Ignoring bean creation exception on FactoryBean type check: org.springframework.beans.factory.UnsatisfiedDependencyException:
 Error creating bean with name 'wxPaymentProRightsMapper' defined in URL [jar:file:/D:/Maven_Repository/aviva-cofco/repository/com/minshenglife/wxpp/minshenglife-wxpp-dal/0.0.1-SNAPSHOT/minshenglife-wxpp-dal-0.0.1-SNAPSHOT.jar!/com/minshenglife/wxpp/dal/mapper/WxPaymentProRightsMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory': : Error creating bean with name 'sqlSessionFactory' defined in URL [file:/D:/javaee/workspace/minshenglife-wxpp/minshenglife-wxpp-web/target/classes/spring/applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'class path resource [mybatis/UserActivityMapper.xml]'; nested exception is java.lang.RuntimeException:
 Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.minshenglife.wxpp.dal.mapper.UserActivityMapper.searchByUserIdAndActivityId; nested exception is org.springframework.beans.factory.BeanCreationException:
 Error creating bean with name 'sqlSessionFactory' defined in URL [file:/D:/javaee/workspace/minshenglife-wxpp/minshenglife-wxpp-web/target/classes/spring/applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'class path resource [mybatis/UserActivityMapper.xml]'; nested exception is java.lang.RuntimeException:
 Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.minshenglife.wxpp.dal.mapper.UserActivityMapper.searchByUserIdAndActivityId

先说下框架，springmvc+mybatis，用jetty启动项目的时候，jetty一直在输出debug日志，但是启动不了，也没见到报错，找了半天也不知道什么问题，就是一直在那输出debug信息，关掉jetty，仔细查看控制台输出的时候，发现了以上错误信息，并不是没有报错，是报错了，但是jetty陷入了死循环，一直在输出日志，原来是mybatis的映射文件mapper.xml出错了，里面有一段重复的映射（本来想添加一个方法复制的，但是又没有添加，也没把刚复制的删掉）最后导致这个问题的发生，引以为戒