invalid comparison: java.util.ArrayList and java.lang.String——bug解决办法
2018-03-07 13:23
671 查看
这是一个根据list集合的查找数据的 sql,在接收list的时候加了判断 list != ‘ ’ “”,引起了集合与Stirng类型的比较,故报错
<if test="list != null and list != ‘‘">
and ul.loan_id in
<foreach collection="list" index="index" item="loanIdList" open="(" separator="," close=")">
#{loanIdList}
</foreach>
</if>
解决方案: 将判断条件改为 : list.size >0
<if test="list != null and list.size > 0">
and ul.loan_id in
<foreach collection="list" index="index" item="loanIdList" open="(" separator="," close=")">
#{loanIdList}
</foreach>
</if> http://blog.csdn.net/www_wangzheguilai/article/details/77199234
<if test="list != null and list != ‘‘">
and ul.loan_id in
<foreach collection="list" index="index" item="loanIdList" open="(" separator="," close=")">
#{loanIdList}
</foreach>
</if>
解决方案: 将判断条件改为 : list.size >0
<if test="list != null and list.size > 0">
and ul.loan_id in
<foreach collection="list" index="index" item="loanIdList" open="(" separator="," close=")">
#{loanIdList}
</foreach>
</if> http://blog.csdn.net/www_wangzheguilai/article/details/77199234
相关文章推荐
- invalid comparison: java.util.ArrayList and java.lang.String——bug解决办法
- invalid comparison: java.util.ArrayList and java.lang.String——bug解决办法
- invalid comparison: java.util.ArrayList and java.lang.String——bug解决办法
- 解决Mybatis PersistenceException,invalid comparison: java.util.Date and java.lang.String
- java.lang.IllegalArgumentException: invalid comparison: java.util.ArrayList and java.lang.String
- 关于mybatis报invalid comparison: java.util.Arrays$ArrayList and java.lang.String异常
- invalid comparison: java.util.ArrayList and java.lang.String
- mybatis异常invalid comparison: java.util.Date and java.lang.String(date和string无法比较)
- mybatis部分版本异常invalid comparison: java.util.Date and java.lang.String
- invalid comparison: java.util.Date and java.lang.String异常的原因
- invalid comparison: com.XXX.shop.util.PageUtil and java.lang.String
- MyBatis3.3.0关于invalid comparison: java.sql.Timestamp and java.lang.String异常的解决
- MyBatis sqlMapper.xml 传入String类型参数报错,invalid comparison: java.util.LinkedHashMap and java.lang.Strin
- mybatis异常invalid comparison: java.util.Date and java.lang.String
- mybatis异常invalid comparison: java.util.Date and java.lang.String
- mybatis异常invalid comparison: java.util.Date and java.lang.String
- 【明哥报错簿】之 mybatis异常invalid comparison: java.util.Date and java.lang.String
- mybatis异常invalid comparison: java.util.Date and java.lang.String
- mybatis异常invalid comparison: java.util.Date and java.lang.String
- mybatis异常invalid comparison: java.util.Date and java.lang.String