关于spring中的bean注入问题

Question

定义了一个UserDAO，

@Mapper
public interface UserDAO {
    // 注意空格
    String TABLE_NAME = " user ";
    String INSERT_FIELDS = " name, password, salt, head_url ";
    String SELECT_FIELDS = " id, " + INSERT_FIELDS;

    @Insert({"insert into ", TABLE_NAME, "(", INSERT_FIELDS,
            ") values (#{name},#{password},#{salt},#{headUrl})"})
    int addUser(User user);

    @Select({"select ", SELECT_FIELDS, " from ", TABLE_NAME, " where id=#{id}"})
    User selectById(int id);

    @Update({"update ", TABLE_NAME, " set password=#{password} where id=#{id}"})
    void updatePassword(User user);

    @Delete({"delete from ", TABLE_NAME, " where id=#{id}"})
    void deleteById(int id);
}

可在饮用的时候一只说找不到这个bean

Answer 1

能把你的工程发给我看一下吗 这样子看不出来

Answer 2

你是否有扫描过mapper目录