SSM+Bootstrap+Tomcat8.5+Eclipse+JDK1.8

2019-08-06 14:48:59 DEBUG [com.alibaba.druid.pool.PreparedStatementPool:160]- {conn-10001, pstmt-20005} exit cache
2019-08-06 14:48:59 DEBUG [com.github.miemiedev.mybatis.paginator.support.SQLHelp:52]- Total count SQL [select count(1) from (SELECT  
    t.LKH, t.LKMC, t.CJJG, t.QXDM, t.ZDYFZ, (CASE t.ZDLK WHEN 1 THEN '是' WHEN 0 THEN '否'END) AS zdlk, t.LX, t.XCXS, t.DLZL, t.DLLX, t.LKZT, t.CDS, t.JD, t.WD, t.QZ,
    t.KZZD1, t.KZZD2, t.WFDD, t.LDDM, t.LDMC, t.DDMS, t.XH, t.JSRQ, t.CJDW, t.TZDW, t.XSFX, t.WFDD1, t.LDDM1, t.DDMS1,
    t.LKMC1, t.FLG, t.QYZT, t.LK_YJ_FLG, t.LK_YJZ, t.LK_YJ_MIN, t.LK_YJ_MAX, t.LKSHZT, t.BZ, t.CJSJ, t.CJR,
    t.GXSJ, t.GXR, t.ZT, t.WD1, t.JD1, t.LKWFLX, t.BQ, t.QXSBBM  
    
    FROM XX t
    WHERE t.zt = 1
    
      AND t.zdlk = ?
     
    ORDER BY t.cjsj DESC) tmp_count] 
2019-08-06 14:48:59 DEBUG [com.github.miemiedev.mybatis.paginator.support.SQLHelp:53]- Total count Parameters: {wxdw=, zdyfz=, qxdm=, lkmc=, lkh=, cjjg=, sblx=, zdlk=0, sbnf=, dlzl=, dllx=, lkwflx=, sbzt=} 
2019-08-06 14:48:59 DEBUG [com.github.miemiedev.mybatis.paginator.support.SQLHelp:69]- Total count: 16568
2019-08-06 14:48:59 DEBUG [com.alibaba.druid.pool.PreparedStatementPool:129]- {conn-10003, pstmt-20006} enter cache
2019-08-06 14:48:59 DEBUG [org.mybatis.spring.SqlSessionUtils:168]- Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@2c50d568]
2019-08-06 14:48:59 DEBUG [org.springframework.jdbc.datasource.DataSourceUtils:327]- Returning JDBC Connection to DataSource
2019-08-06 14:48:59 DEBUG [org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver:134]- Resolving exception from handler [public java.lang.Object com.lst.controller.JcxxLkxxViewController2.queryList(java.lang.Integer,java.lang.Integer,javax.servlet.http.HttpServletRequest)]: org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.reflect.UndeclaredThrowableException
### The error may exist in file [E:\Work_QYF\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\NdManagent\WEB-INF\classes\com\lst\mapping\XXMapper2.xml]
### The error may involve com.lst.dao.XXMapper2.queryListByMap-Inline
### The error occurred while setting parameters
### SQL: select * from ( SELECT       t.LKH, t.LKMC, t.CJJG, t.QXDM, t.ZDYFZ, (CASE t.ZDLK WHEN 1 THEN '是' WHEN 0 THEN '否'END) AS zdlk, t.LX, t.XCXS, t.DLZL, t.DLLX, t.LKZT, t.CDS, t.JD, t.WD, t.QZ,     t.KZZD1, t.KZZD2, t.WFDD, t.LDDM, t.LDMC, t.DDMS, t.XH, t.JSRQ, t.CJDW, t.TZDW, t.XSFX, t.WFDD1, t.LDDM1, t.DDMS1,     t.LKMC1, t.FLG, t.QYZT, t.LK_YJ_FLG, t.LK_YJZ, t.LK_YJ_MIN, t.LK_YJ_MAX, t.LKSHZT, t.BZ, t.CJSJ, t.CJR,     t.GXSJ, t.GXR, t.ZT, t.WD1, t.JD1, t.LKWFLX, t.BQ, t.QXSBBM   FROM XX t WHERE t.zt = 1                                                       AND t.zdlk = ?      ORDER BY t.cjsj DESC ) where rownum <= ?
### Cause: java.lang.reflect.UndeclaredThrowableException


嚴重: Servlet.service() for servlet [spring] in context with path [/NdManagent] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.reflect.UndeclaredThrowableException
### The error may exist in file [E:\Work_QYF\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\NdManagent\WEB-INF\classes\com\lst\mapping\XXMapper2.xml]
### The error may involve com.lst.dao.XXMapper2.queryListByMap-Inline
### The error occurred while setting parameters
### SQL: select * from ( SELECT       t.LKH, t.LKMC, t.CJJG, t.QXDM, t.ZDYFZ, (CASE t.ZDLK WHEN 1 THEN '是' WHEN 0 THEN '否'END) AS zdlk, t.LX, t.XCXS, t.DLZL, t.DLLX, t.LKZT, t.CDS, t.JD, t.WD, t.QZ,     t.KZZD1, t.KZZD2, t.WFDD, t.LDDM, t.LDMC, t.DDMS, t.XH, t.JSRQ, t.CJDW, t.TZDW, t.XSFX, t.WFDD1, t.LDDM1, t.DDMS1,     t.LKMC1, t.FLG, t.QYZT, t.LK_YJ_FLG, t.LK_YJZ, t.LK_YJ_MIN, t.LK_YJ_MAX, t.LKSHZT, t.BZ, t.CJSJ, t.CJR,     t.GXSJ, t.GXR, t.ZT, t.WD1, t.JD1, t.LKWFLX, t.BQ, t.QXSBBM   FROM XX t      WHERE t.zt = 1            AND t.zdlk = ?                                                                 ORDER BY t.cjsj DESC ) where rownum <= ?
### Cause: java.lang.reflect.UndeclaredThrowableException] with root cause
java.sql.SQLException: 無法轉換爲內部表示

分析：

獲取的記錄數，是正確的，且，訪問數據庫之前未報錯，說明：MyBatis已經訪問過了Oracle了且SQL語句（含條件判斷）沒有錯。

參考了：java.lang.reflect.UndeclaredThrowableException【文章】

我檢查XxxController對應方法、XxxService對應方法、XxxMapper.java對應方法及其參數、XxxVo的屬性名稱是否對得上XxxMapper.xml對應SQL語句的字段名，且屬性有沒有setter和getter【就是偏偏沒對XxxVo屬性的類型！！！】，都是沒有問題的！！！但很明顯：

獲取的SQL記錄無處安放！！！就是與<select>的returnType有關呀！！！