java注解自动加载接口,spring boot 自动生成的mapper 接口文件无法注入，已经添加@MapperScan 注解...

/p>

PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"

"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

connectionURL="${spring.datasource.url}"

userId="${spring.datasource.username}"

password="${spring.datasource.password}">

spring boot 入口文件:

package com.mall.demo;

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

@MapperScan(basePackages = "com.mall.demo.mapper")

public class MallProjectApplication {

public static void main(String[] args) {

SpringApplication.run(MallProjectApplication.class, args);

}

}

使用的编辑器是IDEA ,service实现类中使用Autowired注入，但运行 依然提示没有注入成功。

错误信息如下：

Description:

Field categoryMapper in com.mall.demo.service.impl.CategoryServiceImpl required a bean of type 'com.mall.demo.mapper.CategoryMapper' that could not be found.

Action:

Consider defining a bean of type 'com.mall.demo.mapper.CategoryMapper' in your configuration.