錯誤資訊:

nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'type' in 'class java.lang.String'

<select id="gets" resultType="com.pojo.Dw" >    SELECT *    FROM dw_dw    WHERE 1 = 1    <if test="dwtype != null and dwtype != ''">        AND dwtype=#{dwtype,jdbcType=VARCHAR}    </if></select>

在方法引數前加上註解 @Param(""）

public interface DwMapper{        Dw get(String dwtype,String id);				//List<Dw> gets(String dwtype);        List<Dw> gets(@Param("dwtype")String dwtype);  //方法引數前加上註解 @Param("dwtype"）  //成功}

mybatis3.5.1

springboot2.4