mybatis-plus Invalid bound statement (not found)

项目依赖

<parent>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-parentartifactId>
    <version>2.0.3.RELEASEversion>
parent>

<properties>
    <mybatis-plus.version>2.3mybatis-plus.version>
properties>

<dependencies>
    <dependency>
        <groupId>com.baomidougroupId>
        <artifactId>mybatis-plusartifactId>
        <version>${mybatis-plus.version}version>
    dependency>
    ...
dependencies>

项目为单模块

出问题配置

application.yml

# MybatisPlus 配置
mybatis-plus:
  mapper-locations: classpath:mapper/*/*Mapper.xml

UserMapper.java

package com.zbj.user.dao.mapper;

public interface UserMapper extends BaseMapper<User> {
    Map queryByUserId(@Param("userId") long userId, @Param("fields") List fields);
}

UserMapper.xml

<mapper namespace="com.zbj.user.dao.mapper.UserMapper">


<select id="queryByUserId" resultMap="java.util.Map">
        select
        <foreach collection="fields" item="item" separator=",">
            ${item}
        foreach>
        from user where user_id = ${userId}
    select>
mapper>

UserMapper.queryByUserId找不到异常

• 参照官方文档(没有解决问题)
• http://mp.baomidou.com/#/question?id=%E5%BC%82%E5%B8%B8invalid-bound-statement-not-found-%E8%A7%A3%E5%86%B3%E6%96%B9%E6%B3%95mp%E6%96%B9%E6%B3%95%E6%97%A0%E6%B3%95%E8%B0%83%E7%94%A8
• 参照自定义方法无法执行
• http://mp.baomidou.com/#/question?id=%E8%87%AA%E5%AE%9A%E4%B9%89sql%E6%97%A0%E6%B3%95%E6%89%A7%E8%A1%8C
• 文档中配置 application.yml

mybatis-plus:
    mapper-locations: classpath:/mapper/**/*.xml

• 文档中多模块才需要这样配置

注意！maven 多模块 jar 依赖 xml 扫描需为 classpath*:mapper/**/*Mapper.xml 加载多个 jar 下的 xml

• 经本地调试，单模块也需要像多模块那样配置

mybatis-plus:
  # 此处有坑 单模块加载也需要配置*(classpath 紧挨着的星) 解决自定义SQL无法执行
  mapper-locations: classpath*:mapper/*/*Mapper.xml

• 至此问题解决
• 一个星号引发的错误

参考链接

http://mp.baomidou.com/#/?id=%E7%AE%80%E4%BB%8B