服务器一启动就报如下的错误,当时依照错误提示很是不解:
1.Caused by: org.springframework.beans.factory.BeanCreationException:
2.Could not autowire field: private com.huawei.support.dao.DaoManager com.huawei.support.attachment.dao.AttachmentDAO.mDaoManager;
3.nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'daoManager':
4.Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.
5.BeanCreationException: Could not autowire method:
6.public void com.huawei.support.dao.DaoManager.setSqlMap(com.ibatis.sqlmap.client.SqlMapClient);
7.nested exception is org.springframework.beans.factory.
8.BeanCreationException: Error creating bean with name 'sqlMapClient' defined in class
9.path resource [applicationContext.xml]: Invocation of init method failed; nested exception is
10.org.springframework.core.NestedIOException: Failed to parse config resource: class path resource
11.[sql-map-config.xml]; nested exception is com.ibatis.common.xml.NodeletException: Error parsing XML.
12.Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/sqlMap'.
13.Cause: com.ibatis.common.xml.NodeletException: Error parsing XML.
14.Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMap/select'.
15.Cause: com.ibatis.sqlmap.client.SqlMapException: Error. Could not initialize class. Cause: java.lang.ClassNotFoundException: com.szelink.zfaq.alarm.aqyj.action.AlarmWycgBean at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:507)
16. at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
17. at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)
18. ... 37 more
(1) 如上的错误提示,没有发现该类。但是在项目中确实存在所提到的类的。如是就想是不是我创建的applicationContext.xml配置文件中有问题。在该配置文件中创建bean有问题。
(2) 后来进一步的查找如下的错误提示引起了注意:
1.Cause: com.ibatis.sqlmap.client.SqlMapException: Error.
2.Could not initialize class.
3.Cause: java.lang.ClassNotFoundException:com.szelink.zfaq.alarm.aqyj.action.AlarmWycgBean
此时怀疑是不是在Ibatis的配置文件中新加的SQL引进了错误。如是删掉了刚刚添加的SQL发现,服务器启动正常。如是定位出使新加的SQL引进的问题的。新加的SQL如下所示:
<!-- 最新预警信息 -->
<select id="newWarnings" resultClass="java.util.HashMap" parameterClass="com.szelink.zfaq.alarm.aqyj.action.AlarmWycgBean">
<include refid="ORACLE_PAGE_HEADER" />
SELECT T.* ,G.ORG_NAME FROM (
SELECT UNITID,ALARMDATE,
SUM(CASE WHEN CATEGORY = '1' THEN NUMS ELSE 0 END) ONE,
SUM(CASE WHEN CATEGORY = '2' THEN NUMS ELSE 0 END) TWO,
SUM(CASE WHEN CATEGORY = '3' THEN NUMS ELSE 0 END) THREE,
SUM(CASE WHEN CATEGORY = '4' THEN NUMS ELSE 0 END) FOUR,
SUM(CASE WHEN CATEGORY = '5' THEN NUMS ELSE 0 END) FIVE,
SUM(CASE WHEN CATEGORY = '6' THEN NUMS ELSE 0 END) SIX,
SUM(CASE WHEN CATEGORY = '7' THEN NUMS ELSE 0 END) SEVEN,
SUM(CASE WHEN CATEGORY = '99' THEN NUMS ELSE 0 END) OTHER,
SUM(NUMS) TOTAL
FROM(
SELECT R.UNITID , D.CATEGORY , R.ALARMDATE,SUM(D.NUMS) NUMS FROM T_ALARM_REVIEWS R
INNER JOIN T_ALARM_REVIEWS_DETAILS D ON R.TID = D.PTID
GROUP BY R.UNITID , D.CATEGORY , R.ALARMDATE
) GROUP BY UNITID ,ALARMDATE
) T INNER JOIN Z_RES_ORG G ON T.UNITID = G.ORG_ID ORDER BY ALARMDATE DESC, TOTAL DESC
<include refid="ORACLE_PAGE_FOOTER" />
</select>
(3)最后经过分析发现 parameterClass="com.szelink.zfaq.alarm.aqyj.action.AlarmWycgBean" 在配置文件中并没有这样的一个别名,它是对应到一个类的。由于没有配置导致Server在解析配置文件时无法识别该类,而导致Cause: java.lang.ClassNotFoundException: com.szelink.zfaq.alarm.aqyj.action.AlarmWycgBean
(4)最终可以这样解决:在parameterClass中写入自己类对应的javabean