mybatis与spring整合,三种开发方式原始Dao开发，Mapper代理以及Mapper代理增强版开发

一.原始Dao开发

   1.创建pojo

package cn.liang.pojo;
import java.io.Serializable;
import java.util.Date;
public class User implements Serializable{
		private static final long serialVersionUID = 1L;
		private int id;
		private String username;// 用户姓名
		private String sex;// 性别
		private Date birthday;// 生日
		private String address;// 地址
		public int getId() {
			return id;
		}
		public void setId(int id) {
			this.id = id;
		}
		public String getUsername() {
			return username;
		}
		@Override
		public String toString() {
			return "User [id=" + id + ", username=" + username + ", sex=" + sex + ", birthday=" + birthday
					+ ", address=" + address + "]";
		}
		public void setUsername(String username) {
			this.username = username;
		}
		public String getSex() {
			return sex;
		}
		public void setSex(String sex) {
			this.sex = sex;
		}
		public Date getBirthday() {
			return birthday;
		}
		public void setBirthday(Date birthday) {
			this.birthday = birthday;
		}
		public String getAddress() {
			return address;
		}
		public void setAddress(String address) {
			this.address = address;
		}

}
package