JDBC基础学习笔记_05_jdbc的程序优化_DTC相关

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一.我们新建一个类，到一个新建包

package com.langzimingjian.entity;/** * 因為每一個表都會有一個主鍵，這個idEntity封裝了這個主鍵 * @author 13641 * */public abstract class idEntity {protected long id;public long getId() {return id;}public void setId(long id) {this.id = id;}}

二. 新建一个用户类

package com.langzimingjian.entity;public class User extends IdEntity {private String name;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}private String password;private String email;@Overridepublic String toString() {return "User [name=" + name + ", password=" + password + ", email="+ email + ", id=" + id + "]";}}

这样用户类编写完毕。

二.我们新建一个类，存address

package com.langzimingjian.entity;public class Address extends IdEntity{private String city;private String country;private String userId;public String getCity() {return city;}public void setCity(String city) {this.city = city;}public String getCountry() {return country;}public void setCountry(String country) {this.country = country;}public String getUserId() {return userId;}public void setUserId(String userId) {this.userId = userId;}@Overridepublic String toString() {return "Address [city=" + city + ", country=" + country + ", userId="+ userId + ", id=" + id + "]";}}

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