mybatis全动态sql处理方式
对于项目中需要用到全动态拼接sql的场景时，可以用到mybatis的statementType属性
Demo(如果是非预编译的话，最好使用${}而不是#{})：
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| <select id="query" resultType="Map" statementType="STATEMENT">
select * from ${tableName} t where
<foreach item="item" index="index" collection="field" open=" "
separator="and" close=" ">
<choose>
<when test="item.fieldType == 'DATE' and item.dateQueryFlag == 0">
${item.fieldCode} between
to_date('${item.fieldValue}','yyyy-mm-dd
hh24:mi:ss')
</when>
<when test="item.fieldType == 'DATE' and item.dateQueryFlag == 1">
to_date('${item.fieldValue}','yyyy-mm-dd
hh24:mi:ss')
</when>
<when test="item.fieldItemCode != null and item.fieldItemCode != ''">
${item.fieldCode} =
'${item.fieldItemCode}'
</when>
<otherwise>
${item.fieldCode} =
'${item.fieldValue}'
</otherwise>
</choose>
</foreach>
</select>
|
