使用tk.mybatis中的注意事项--insert添加不上+没有selectByExample

package com.wang.test.demo.entity;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;

@Data
@NoArgsConstructor
@AllArgsConstructor
@Table(name = "user")//对应到表名字
public class User implements Serializable {

    @Id//对应表的主键
    private Integer id;//必须用包装类,不然插入不到数据库中

    @Column(name = "Name")//解决实体类和数据库字段不一致问题
    private String name;

    private Integer age;
}

package com.wang.test.demo.mapper;

import com.wang.test.demo.entity.User;
import tk.mybatis.mapper.common.Mapper;

public interface UserMapper extends Mapper<User> {

}