Mybatis--xml 處理字符串和Boolean

 

字符串

 

<if test='startDate != null and startDate != "" ' >  
    and status = 0   
</if> 

外面是單引號，里面是雙引號。
如果里面是單引號，mybatis處理時是用的OGNL 的表達式，
單引號的 （'y'）會被解析成字符

 

Boolean

 

             <choose>
                <when test="isReSend">
                    and (info.batchId is not null)
                </when>
                <otherwise>
                    and (info.batchId = '' or info.batchId is null)
                </otherwise>
                </choose>


或者


             <choose>
                <when test="isReSend==true">
                    and (info.batchId is not null)
                </when>
                <otherwise>
                    and (info.batchId = '' or info.batchId is null)
                </otherwise>
                </choose>