JAVA-MyBaits对应XML的两种使用方式

Posted 2021-02-05 风浪子

概述：

　　在使用XML写SQL语句的时候，遇到参数传递的两种方式，也就是Mapper里面带@Param注解和不带的情况，对应XML的写法也不相同，使用的时候要注意对照，汇总举例如下：

Mapper代码:

    List<InIncome101Report> queryListByPeriod(Page<InIncome101Report> page, Map<String,Object> params);//非注解@Param

   List<InIncome101Report> queryListByVoucherdata(Page<InIncome101Report> page, @Param("params") Map<String,Object> params);//带注解的

XML内容

    <select id="queryListByPeriod" resultType="com.dbgo.acme.report.domain.model.InIncome101Report">
        SELECT
        T.supplier_name supplierName,
        T.supplier_tax_code supplierTaxcode,
        COUNT (0) sumCount        
        FROM
        tbl_in_incomedetail T
        WHERE
        T.org_id = #{orgId}
        <if test="_parameter.containsKey(‘periodstart‘)">
            AND T.tax_period>= #{periodstart}
        </if>
        <if test="_parameter.containsKey(‘periodend‘)">
            AND T.tax_period <![CDATA[<=]]>#{periodend}
        </if>        
        GROUP BY
        T.supplier_name,
        T.supplier_tax_code
    </select>

方法2：

 <select id="queryListByVoucherdata" resultType="com.dbgo.acme.report.domain.model.InIncome101Report">
        SELECT
        T.suppliername supplierName,
        T.suppliertax_code supplierTaxcode,        
        FROM
        tbl_in_incomedetail T
        WHERE
        T.org_id = #{params.orgId}
        AND T.vouchedata >=#{params.start}
        AND T.vouchedata <![CDATA[<=]]>#{params.end}
        GROUP BY
        T.suppliername ,
        T.suppliertax_code 
    </select>