问题分析
MyBatis-Flex 自定义查询未传递参数可能由以下原因导致：
- 参数未正确绑定到 SQL 语句
- 方法参数与 SQL 占位符名称不匹配
- 动态 SQL 条件未生效
检查参数绑定方式
确保在 XML 或注解中正确引用参数。若使用@Param注解，需在 SQL 中通过#{paramName}引用：
@Select("SELECT * FROM table WHERE column = #{paramName}") List<Entity> query(@Param("paramName") String param);若未使用@Param，则需通过#{arg0}、#{arg1}按顺序引用：
@Select("SELECT * FROM table WHERE column = #{arg0}") List<Entity> query(String param);验证动态 SQL 条件
使用 MyBatis-Flex 的QueryWrapper时，确保条件逻辑正确：
QueryWrapper query = QueryWrapper.create() .where(COLUMN.eq(param)); // 确保 param 非 null若参数为null，eq条件可能被忽略，导致查询无参数。
调试 SQL 日志
启用 MyBatis SQL 日志，检查最终生成的 SQL 是否包含参数：
# application.yml logging: level: org.mybatis: DEBUG观察控制台输出的 SQL 语句，确认参数是否被替换为占位符?并传递。
检查参数类型匹配
确保参数类型与数据库字段类型兼容。例如，字符串参数需用引号包裹：
-- XML 或注解中 WHERE column = #{param} -- 自动处理类型若为数值类型，避免误用字符串占位符。
确认方法调用
检查调用自定义查询时是否实际传入了参数：
// 错误示例：未传递参数 mapper.query(null); // 正确示例 mapper.query("value");通过以上步骤逐一排查，通常可定位参数未传递的原因。
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