mybatis学习：mybatis注解开发一对一的查询配置

实体类：

 public class Account {

     private Integer id;
     private Integer uid;
     private Double money;

     private User user;

     public User getUser() {
         return user;
     }

     public void setUser(User user) {
         this.user = user;
     }
     public Integer getId() {
         return id;
     }

     public void setId(Integer id) {
         this.id = id;
     }

     public Integer getUid() {
         return uid;
     }

     public void setUid(Integer uid) {
         this.uid = uid;
     }

     public Double getMoney() {
         return money;
     }

     public void setMoney(Double money) {
         this.money = money;
     }

     @Override
     public String toString() {
         return "Account{" +
                 "id=" + id +
                 ", uid=" + uid +
                 ", money=" + money +
                 '}';
     }
 }

dao层：

 public interface IAccountDao {

     /**
      * 查询所有账户，并且获取每个账户所属的用户信息
      * @return
      */
     @Select("select * from account")
     @Results(id = "accountMap",value = {
             @Result(id = true,column = "id",property = "id"),
             @Result(column = "uid",property = "uid"),
             @Result(column = "money",property = "money"),
             @Result(property = "user",column = "uid",one = @One(select = "cn.flypig666.dao.IUserDao.findById",fetchType = FetchType.EAGER))
     })
     List<Account> findAll();
 }

test：

@Test
    public void testFindAll(){
        List<Account> accounts = accountDao.findAll();
        for (Account account : accounts) {
            System.out.println("账户信息：");
            System.out.println(account);
            System.out.println(account.getUser());
        }
    }