需求:使用批量插入后,需要insert之后的每一条记录的ID 注意:Mybatis3.3.1的版本以后支持批量插入后返回主键ID 示例: domin.java: public class User { private int d; private String name; private String pwd; public long getId() { return id; } public void setId(long id) { this.id = id; } public String
有时候使用mybatis插入数据后,需要用到记录在数据库中的自增id,可以利用keyProperty来返回,赋值给实体类中的指定字段. 单条记录插入并返回 First, if your database supports auto-generated key fields (e.g. MySQL and SQL Server), then you can simply set useGeneratedKeys="true" and set the keyProperty to the
先说一下没有注解的 先给出实体类: public class City { private int city_id; private String city_name; public int getCity_id() { return city_id; } public void setCity_id(int city_id) { this.city_id = city_id; } public String getCity_name() { return city_name; } public
------------吾亦无他,唯手熟尔,谦卑若愚,好学若饥------------- 实体类 public class Book { private Integer bookID; private String bookName; private String bookAuthor; private Integer bookPrice; public Book() { } public Integer getBookID() { return this.bookID; } public vo
有时候插入记录之后需要使用到插入记录的主键,通常是再查询一次来获取主键,但是MyBatis插入记录时可以设置成返回主键id,简化操作,方法大致有两种. 对应实体类: public class User { private int userId; private String userName; private int userAge; } 对应DAO类: public interface UserMapper { int save(User user); } 方法一.使用useGenerated