Parameter ‘ew’ not found. Available parameters are [wrapper, page, param1, param2]

源码

Impl类

@Override
public IPage<Vehicle> getVehiclePageList(Query query, VehicleVo vo) {   QueryWrapper<Vehicle> wrapper = new QueryWrapper();    wrapper.like("plate_no", vo.getPlateNo()); wrapper.orderByAsc("create_time");  IPage<Vehicle> page = Condition.getPage(query); return baseMapper.pageList(page, wrapper);
}

Mapper

IPage<Vehicle> pageList(IPage<Vehicle> page, @Param(Constants.WRAPPER) QueryWrapper<Vehicle> wrapper);

xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="你的XXXMapper.xml所在位置包名">    <select id="pageList" resultType="你的 XXXMapper.java所在位置包名">           SELECT *  FROM vehicle v            JOIN vs_vehicle_information vvi ON v.id=vvi.veh_ship_id   ${ew.customSqlSegment}   </select></mapper>

报错点 Parameter ‘ew’ not found. Available parameters are [wrapper, page, param1, param2]

@Param 导错包了

正确包地址：import org.apache.ibatis.annotations.Param;

这个千万不能错。不注意的时候，死活找不到问题的原因。开发中细心可以省去很多找 bug 的时间。

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Parameter ‘ew‘ not found. Available parameters are [wrapper, page, param1, param2]

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