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文章目录- 前言
- 一、smbms系统是什么？
- 二、项目搭建
- 1.搭建一个mavenweb项目
- 3.测试项目能够跑起来
- 4.导入项目需要的jar包
- 6.编写实体类
- 7.编写基础公共类
- 8.导入静态资源
- 三、项目实际开发过程
前言
随着对java学习的深入,已经学习到了javaweb引用开发,处于对此项开发技术的兴趣,决定来自己动手实现一个超市管理系统.对于此项工程也感兴趣的同学可以参考以下过程自己来动手实践.
开发此项目需要建立数据库和获取相关静态资源,有兴趣的同学课课私信我免费获取数据库sql文件以及前端静态资源
提示：以下是本篇文章正文内容，下面案例可供参考
一、smbms系统是什么？smbms系统是一个超市管理系统.具体功能等待开发实际展示,
二、项目搭建 1.搭建一个mavenweb项目
只有idea左侧栏中的Exterral Libraries中出现了你导入的jar包才能确定导入成功
## 5.创建项目包结构  6.编写实体类
代码如下（User类）：
package com.zhang.pogo;
import java.util.Date;
public class User {
private long id;//id
private String userCode; //用户编码
private String userName;//用户名称
private String userPassword;//用户密码
private long gender;//性别
private java.sql.Date birthday;//出生时期
private String phone;//电话
private String address;//地址
private long userRole;//用户角色
private long createdBy;//创建者
private Date creationDate;//创建时间
private long modifyBy;//更新者
private Date modifyDate;//更新时间
private Integer age;//年龄
private String userRoleName;//用户角色名称
public Integer getAge() {
Date date = new Date();
Integer age=date.getYear()-birthday.getYear();
return age;
}
public String getUserRoleName() {
return userRoleName;
}
public void setUserRoleName(String userRoleName) {
this.userRoleName = userRoleName;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getUserCode() {
return userCode;
}
public void setUserCode(String userCode) {
this.userCode = userCode;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public long getGender() {
return gender;
}
public void setGender(long gender) {
this.gender = gender;
}
public java.sql.Date getBirthday() {
return birthday;
}
public void setBirthday(java.sql.Date birthday) {
this.birthday = birthday;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public long getUserRole() {
return userRole;
}
public void setUserRole(long userRole) {
this.userRole = userRole;
}
public long getCreatedBy() {
return createdBy;
}
public void setCreatedBy(long createdBy) {
this.createdBy = createdBy;
}
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(java.sql.Timestamp creationDate) {
this.creationDate = creationDate;
}
public long getModifyBy() {
return modifyBy;
}
public void setModifyBy(long modifyBy) {
this.modifyBy = modifyBy;
}
public Date getModifyDate() {
return modifyDate;
}
public void setModifyDate(java.sql.Timestamp modifyDate) {
this.modifyDate = modifyDate;
}
}
代码如下（Role类）：
package com.zhang.pogo;
import java.util.Date;
public class Role {
private long id;//id
private String roleCode;//角色编码
private String roleName;//角色名称
private long createdBy;//创建者
private Date creationDate;//创建时间
private long modifyBy;//更新者
private Date modifyDate;//更新时间
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getRoleCode() {
return roleCode;
}
public void setRoleCode(String roleCode) {
this.roleCode = roleCode;
}
public String getRoleName() {
return roleName;
}
public void setRoleName(String roleName) {
this.roleName = roleName;
}
public long getCreatedBy() {
return createdBy;
}
public void setCreatedBy(long createdBy) {
this.createdBy = createdBy;
}
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(java.sql.Timestamp creationDate) {
this.creationDate = creationDate;
}
public long getModifyBy() {
return modifyBy;
}
public void setModifyBy(long modifyBy) {
this.modifyBy = modifyBy;
}
public Date getModifyDate() {
return modifyDate;
}
public void setModifyDate(java.sql.Timestamp modifyDate) {
this.modifyDate = modifyDate;
}
}
代码如下（Provider 类）：
package com.zhang.pogo;
import java.util.Date;
public class Provider {
private long id; //id
private String proCode;//供应商编码
private String proName;//供应商名称
private String proDesc;//供应商描述
private String proContact;//供应商描述人
private String proPhone;//供应商电话
private String proAddress;//供应商地址
private String proFax;//供应商传真
private long createdBy;//创建者
private Date creationDate;//创建时间
private Date modifyDate;//更新时间
private long modifyBy;//更新者
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getProCode() {
return proCode;
}
public void setProCode(String proCode) {
this.proCode = proCode;
}
public String getProName() {
return proName;
}
public void setProName(String proName) {
this.proname = proName;
}
public String getProDesc() {
return proDesc;
}
public void setProDesc(String proDesc) {
this.proDesc = proDesc;
}
public String getProContact() {
return proContact;
}
public void setProContact(String proContact) {
this.proContact = proContact;
}
public String getProPhone() {
return proPhone;
}
public void setProPhone(String proPhone) {
this.proPhone = proPhone;
}
public String getProAddress() {
return proAddress;
}
public void setProAddress(String proAddress) {
this.proAddress = proAddress;
}
public String getProFax() {
return proFax;
}
public void setProFax(String proFax) {
this.proFax = proFax;
}
public long getCreatedBy() {
return createdBy;
}
public void setCreatedBy(long createdBy) {
this.createdBy = createdBy;
}
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(java.sql.Timestamp creationDate) {
this.creationDate = creationDate;
}
public Date getModifyDate() {
return modifyDate;
}
public void setModifyDate(java.sql.Timestamp modifyDate) {
this.modifyDate = modifyDate;
}
public long getModifyBy() {
return modifyBy;
}
public void setModifyBy(long modifyBy) {
this.modifyBy = modifyBy;
}
}
代码如下（Bill类）：
package com.zhang.pogo;
import java.util.Date;
public class Bill {
private long id;//id
private String billCode;//账单编码
private String productName;//商品名称
private String productDesc;//商品描述
private String productUnit;//商品单位
private double productCount;//商品数量
private double totalPrice;//总金额
private long isPayment;//是否支付
private long createdBy;//创建者
private Date creationDate;//创建时间
private long modifyBy;//更新者
private Date modifyDate;//更新时间
private long providerId;//供应商id
private String providerName;//供应商名称
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getBillCode() {
return billCode;
}
public void setBillCode(String billCode) {
this.billCode = billCode;
}
public String getProductName() {
return productName;
}
public void setProductName(String productName) {
this.productName = productName;
}
public String getProductDesc() {
return productDesc;
}
public void setProductDesc(String productDesc) {
this.productDesc = productDesc;
}
public String getProductUnit() {
return productUnit;
}
public void setProductUnit(String productUnit) {
this.productUnit = productUnit;
}
public double getProductCount() {
return productCount;
}
public void setProductCount(double productCount) {
this.productCount = productCount;
}
public double getTotalPrice() {
return totalPrice;
}
public void setTotalPrice(double totalPrice) {
this.totalPrice = totalPrice;
}
public long getIsPayment() {
return isPayment;
}
public void setIsPayment(long isPayment) {
this.isPayment = isPayment;
}
public long getCreatedBy() {
return createdBy;
}
public void setCreatedBy(long createdBy) {
this.createdBy = createdBy;
}
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(java.sql.Timestamp creationDate) {
this.creationDate = creationDate;
}
public long getModifyBy() {
return modifyBy;
}
public void setModifyBy(long modifyBy) {
this.modifyBy = modifyBy;
}
public Date getModifyDate() {
return modifyDate;
}
public void setModifyDate(java.sql.Timestamp modifyDate) {
this.modifyDate = modifyDate;
}
public long getProviderId() {
return providerId;
}
public void setProviderId(long providerId) {
this.providerId = providerId;
}
}
7.编写基础公共类
(1)数据库配置文件
（文件）dp.properties：
driver=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:3306/jdbc?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone = GMT username=root password=xxxxxx(1)操作数据库的公共类 代码如下（baseDao类）：
package com.zhang.dao;
import java.io.IOException;
import java.io.InputStream;
import java.sql.*;
import java.util.Properties;
//操作数据库的公共类
public class baseDao {
private static String driver;
private static String url;
private static String username;
private static String password;
//静态代码块,类加载的时候就初始化
static {
Properties properties = new Properties();
//通过类加载器读取对应的资源
InputStream is = baseDao.class.getClassLoader().getResourceAsStream("dp.properties");
try {
properties.load(is);
} catch (IOException e) {
e.printStackTrace();
}
driver = properties.getProperty("driver");
url = properties.getProperty("url");
username = properties.getProperty("username");
password = properties.getProperty("password");
}
//获取数据库的连接
public static Connection getConnection(){
Connection connection=null;
try {
Class.forName(driver);
connection = DriverManager.getConnection(url, username, password);
} catch (Exception e) {
e.printStackTrace();
}
return connection;
}
//编写查询公共类
public static ResultSet execute(Connection connection,String sql,Object[] params,ResultSet resultSet,PreparedStatement preparedStatement) throws SQLException {
//预编译的sql,在后面直接执行就可以了
preparedStatement = connection.prepareStatement(sql);
for (int i = 0; i
(1)编写过滤器 代码如下（示例）：
package com.zhang.filter;
import javax.servlet.*;
import java.io.IOException;
public class CharacterEncodingFilter implements Filter {
public void init(FilterConfig filterConfig) throws ServletException {
}
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
servletRequest.setCharacterEncoding("utf-8");
servletResponse.setCharacterEncoding("utf-8");
filterChain.doFilter(servletRequest,servletResponse);
}
public void destroy() {
}
}
8.导入静态资源
此处的静态资源由自己搜集相关资源和自主编写完成,实属不易,需要资源的可以私信我免费获取.
三、项目实际开发过程
代码如下（示例）：
//开发代码会在后续过程中逐步发放
# 总结
提示：这里对文章进行总结： 例如：以上就是今天要讲的内容，本文仅仅简单介绍了pandas的使用，而pandas提供了大量能使我们快速便捷地处理数据的函数和方法。 
