
1 创建用户实体类(Users.java)
public class Users {
private Integer id;
private String name;
private Integer age;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
2 创建mapper接口
public interface UsersMapper {
// 方法名对应映射配置文件里面的id值
void insertUser(Users user);
}
3 创建映射配置文件
<?xml version="1