实战项目

编程入门行业动态更新时间:2024-10-11 23:22:48

实战项目

精彩专栏推荐订阅：在下方专栏👇🏻👇🏻👇🏻👇🏻

💖🔥作者主页：计算机毕设木哥🔥 💖

文章目录

一、项目的设计与实现
二、项目图片展示
三、代码展示
四、总结

一、项目的设计与实现

**商城小程序的设计与实现是一个综合性的项目，涉及到前端界面设计、后端逻辑搭建以及数据管理等多个方面。下面是一个简要的商城小程序设计与实现的步骤：

需求分析：首先，你需要明确商城小程序的功能和特点。确定你的商城是否只是展示商品，还是包含用户注册、登录、购物车、订单管理、支付等功能。根据需求，设计出相应的页面和流程。
前端设计与实现：设计小程序的前端界面，包括首页、商品列表、商品详情、购物车、个人中心等页面。使用微信小程序提供的组件库或自定义组件，实现界面的布局、样式、交互效果等。
后端搭建：选择合适的后端技术，来搭建商城小程序的后端。后端负责处理用户的请求，管理商品信息、用户信息、订单数据等。实现用户注册、商品查询、购物车管理等接口。
数据库设计：设计数据库模型，创建适当的表结构来存储商品信息、用户信息、订单数据等。运用MySQL、根据业务需求建立关联关系、索引等，以保证数据的高效存储和检索。
购物流程与支付：实现用户浏览商品、将商品加入购物车、提交订单等流程。考虑订单状态的管理，以及支付接口的集成，确保用户能够方便、安全地完成支付操作。**

二、项目图片展示

前端模块：

管理员模块：

三、代码展示

package com.my.pro.action;import java.io.Serializable;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;public class BaseAction extends ActionSupport {//返回successpublic static final String SUSSESS = "SUCCSEE";//返回jsonpublic static final String JSON_TYPE = "json";//挑转public static final String RETIRCT_URL = "redirect";//chainpublic static final String CHAIN = "chain";public Map<String, Object> jsonMap = new HashMap<String, Object>();//===================================================================public Map<String, Object> getJsonMap() {return jsonMap;}public void setJsonMap(Map<String, Object> jsonMap) {this.jsonMap = jsonMap;}//===================================================================/*** 獲取request* @return*/public HttpServletRequest getRequest() {return ServletActionContext.getRequest();}/*** 获取response* @return*/public HttpServletResponse getResponse() {return ServletActionContext.getResponse();}public HttpSession getSession() {return getRequest().getSession();}public ServletContext getServletContext() {return ServletActionContext.getServletContext();}/*** 存值* @return*/public ActionContext getActionContext(){return ActionContext.getContext();}public String getRealyPath(String path) {return getServletContext().getRealPath(path);}//判断非空public  boolean isEmpty(final String str) {return (null == str) || (str.trim().length() <= 0);}public  boolean isEmpty(final Character cha) {return ( null==cha) || cha.equals(' ');}public  boolean isEmpty(final Object obj) {return (null==obj);}public  boolean isEmpty(final Object[] objs) {return (null==objs) || (objs.length <= 0);}public  boolean isEmpty(final Collection<?> obj) {return (null==obj) || obj.isEmpty();}public  boolean isEmpty(final Set<?> set) {return (null==set) || set.isEmpty();}public  boolean isEmpty(final Serializable obj) {return null==obj;}public  boolean isEmpty(final Map<?, ?> map) {return (null==map) || map.isEmpty();}}

package com.my.pro.base.impl;import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.math.BigInteger;
import java.util.Collection;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.metadata.ClassMetadata;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
import org.hibernate.transform.Transformers;
import org.springframework.beans.factory.annotation.Autowired;import com.my.pro.base.BaseDao;
import com.my.pro.utils.Pager;
import com.my.pro.utils.SystemContext;public class BaseDaoImpl<T> implements BaseDao<T> {@Autowiredprivate SessionFactory sessionFactory;/*** 创建一个Class的对象来获取泛型的class*/private Class<?> clz;public Class<?> getClz() {if(clz==null) {//获取泛型的Class对象clz = ((Class<?>)(((ParameterizedType)(this.getClass().getGenericSuperclass())).getActualTypeArguments()[0]));}return clz;}public SessionFactory getSessionFactory() {return sessionFactory;}public void setSessionFactory(SessionFactory sessionFactory) {this.sessionFactory = sessionFactory;}protected Session getSession() {return sessionFactory.getCurrentSession();}public T add(T t) {getSession().save(t);return t;}public void update(T t) {getSession().update(t);}/*** 只是修改已经修改的属性*/@Overridepublic T updateOnlyChange(T bean) {// 取得元数据ClassMetadata cm = sessionFactory.getClassMetadata(getClz());// 取得主键名称String identifierName = cm.getIdentifierPropertyName();// 反射取得主键值Integer id = (Integer) getSimpleProperty(bean, identifierName);// 取得数据库中的对象T po = this.load(id);// 取得所有属性String[] propNames = cm.getPropertyNames();// 定义存储新值Object newValue;for (String propName : propNames) {// 如果是主键就跳过if (propName.equals(identifierName)) {continue;}// 反射取得新值newValue = getSimpleProperty(bean, propName);if (newValue != null) {// 设置新值cm.setPropertyValue(po, propName, newValue);}}return po;}public static Object getSimpleProperty(Object bean, String propName) {try {return bean.getClass().getMethod(getReadMethod(propName)).invoke(bean);} catch (Exception e) {throw new RuntimeException("get object property failed: '" + propName + "'", e);}}private static String getReadMethod(String name) {return "get" + name.substring(0, 1).toUpperCase(Locale.ENGLISH)+ name.substring(1);}private static String setReadMethod(String name) {return "set" + name.substring(0, 1).toUpperCase(Locale.ENGLISH)+ name.substring(1);}public void delete(int id) {getSession().delete(this.load(id));}public T load(int id) {return (T)getSession().load(getClz(), id);}/*** 通过参数查询一个* @param hql* @param alias* @return*/public T getByParams(String hql, Map<String, Object> alias){List<T> t = this.list(hql, null, alias);if(t !=null){return t.get(0);}else{return null;}}public List<T> list(String hql, Object[] args) {return this.list(hql, args, null);}public List<T> list(String hql, Object arg) {return this.list(hql, new Object[]{arg});}public List<T> list(String hql) {return this.list(hql,null);}private String initSort(String hql) {String order = SystemContext.getOrder();String sort = SystemContext.getSort();if(sort!=null&&!"".equals(sort.trim())) {hql+=" order by "+sort;if(!"desc".equals(order)) hql+=" asc";else hql+=" desc";}return hql;}@SuppressWarnings("rawtypes")private void setAliasParameter(Query query,Map<String,Object> alias) {if(alias!=null) {Set<String> keys = alias.keySet();for(String key:keys) {Object val = alias.get(key);if(val instanceof Collection) {//查询条件是列表query.setParameterList(key, (Collection)val);} else {query.setParameter(key, val);}}}}private void setParameter(Query query,Object[] args) {if(args!=null&&args.length>0) {int index = 0;for(Object arg:args) {query.setParameter(index++, arg);}}}public List<T> list(String hql, Object[] args, Map<String, Object> alias) {hql = initSort(hql);Query query = getSession().createQuery(hql);setAliasParameter(query, alias);setParameter(query, args);return query.list();}public List<T> listByAlias(String hql, Map<String, Object> alias) {return this.list(hql, null, alias);}public Pager<T> find(String hql, Object[] args) {return this.find(hql, args, null);}public Pager<T> find(String hql, Object arg) {return this.find(hql, new Object[]{arg});}public Pager<T> find(String hql) {return this.find(hql,null);}@SuppressWarnings("rawtypes")private void setPagers(Query query,Pager pages) {Integer pageSize = SystemContext.getPageSize();Integer pageOffset = SystemContext.getPageOffset();if(pageOffset==null||pageOffset<0) pageOffset = 0;if(pageSize==null||pageSize<0) pageSize = 15;pages.setOffset(pageOffset);pages.setSize(pageSize);query.setFirstResult(pageOffset).setMaxResults(pageSize);}private String getCountHql(String hql,boolean isHql) {String e = hql.substring(hql.indexOf("from"));String c = "select count(*) "+e;if(isHql)c.replaceAll("fetch", "");return c;}public Pager<T> find(String hql, Object[] args, Map<String, Object> alias) {hql = initSort(hql);String cq = getCountHql(hql,true);Query cquery = getSession().createQuery(cq);Query query = getSession().createQuery(hql);//设置别名参数setAliasParameter(query, alias);setAliasParameter(cquery, alias);//设置参数setParameter(query, args);setParameter(cquery, args);Pager<T> pages = new Pager<T>();setPagers(query,pages);List<T> datas = query.list();pages.setDatas(datas);long total = (Long)cquery.uniqueResult();pages.setTotal(total);return pages;}public Pager<T> findByAlias(String hql, Map<String, Object> alias) {return this.find(hql,null, alias);}public Object queryObject(String hql, Object[] args) {return this.queryObject(hql, args,null);}public Object queryObject(String hql, Object arg) {return this.queryObject(hql, new Object[]{arg});}public Object queryObject(String hql) {return this.queryObject(hql,null);}public void updateByHql(String hql, Object[] args) {Query query = getSession().createQuery(hql);setParameter(query, args);query.executeUpdate();}public void updateByHql(String hql, Object arg) {this.updateByHql(hql,new Object[]{arg});}public void updateByHql(String hql) {this.updateByHql(hql,null);}public <N extends Object>List<N> listBySql(String sql, Object[] args, Class<?> clz,boolean hasEntity) {return this.listBySql(sql, args, null, clz, hasEntity);}public <N extends Object>List<N> listBySql(String sql, Object arg, Class<?> clz,boolean hasEntity) {return this.listBySql(sql, new Object[]{arg}, clz, hasEntity);}public <N extends Object>List<N> listBySql(String sql, Class<?> clz, boolean hasEntity) {return this.listBySql(sql, null, clz, hasEntity);}public <N extends Object>List<N> listBySql(String sql, Object[] args,Map<String, Object> alias, Class<?> clz, boolean hasEntity) {sql = initSort(sql);SQLQuery sq = getSession().createSQLQuery(sql);setAliasParameter(sq, alias);setParameter(sq, args);if(hasEntity) {sq.addEntity(clz);} else sq.setResultTransformer(Transformers.aliasToBean(clz));return sq.list();}public <N extends Object>List<N> listByAliasSql(String sql, Map<String, Object> alias,Class<?> clz, boolean hasEntity) {return this.listBySql(sql, null, alias, clz, hasEntity);}public <N extends Object>Pager<N> findBySql(String sql, Object[] args, Class<?> clz,boolean hasEntity) {return this.findBySql(sql, args, null, clz, hasEntity);}public <N extends Object>Pager<N> findBySql(String sql, Object arg, Class<?> clz,boolean hasEntity) {return this.findBySql(sql, new Object[]{arg}, clz, hasEntity);}public <N extends Object>Pager<N> findBySql(String sql, Class<?> clz, boolean hasEntity) {return this.findBySql(sql, null, clz, hasEntity);}public <N extends Object>Pager<N> findBySql(String sql, Object[] args,Map<String, Object> alias, Class<?> clz, boolean hasEntity) {sql = initSort(sql);String cq = getCountHql(sql,false);SQLQuery sq = getSession().createSQLQuery(sql);SQLQuery cquery = getSession().createSQLQuery(cq);setAliasParameter(sq, alias);setAliasParameter(cquery, alias);setParameter(sq, args);setParameter(cquery, args);Pager<N> pages = new Pager<N>();setPagers(sq, pages);if(hasEntity) {sq.addEntity(clz);} else {sq.setResultTransformer(Transformers.aliasToBean(clz));}List<N> datas = sq.list();pages.setDatas(datas);long total = ((BigInteger)cquery.uniqueResult()).longValue();pages.setTotal(total);return pages;}public <N extends Object>Pager<N> findByAliasSql(String sql, Map<String, Object> alias,Class<?> clz, boolean hasEntity) {return this.findBySql(sql, null, alias, clz, hasEntity);}public Object queryObject(String hql, Object[] args,Map<String, Object> alias) {Query query = getSession().createQuery(hql);setAliasParameter(query, alias);setParameter(query, args);return query.uniqueResult();}public Object queryObjectByAlias(String hql, Map<String, Object> alias) {return this.queryObject(hql,null,alias);}//通过某一列查询 hql@Overridepublic List<T> listByKeyUserHql(String column,String model,String columnValue,String condition) {String hql = " from "+ model +" where "+ column +" = :param ";if(condition !=null && !"".equals(condition)){hql += "and "+condition;}Query query = getSession().createQuery(hql);query.setParameter("param", columnValue);return query.list();}//通过某一列查询 sql@Overridepublic List<T> listByKeyUserSql(String column,String table,String columnValue,String condition) {String hql = "select * from "+ table +" where "+ column +" = :param ";if(condition !=null && !"".equals(condition)){hql += "and "+condition;}Query query = getSession().createSQLQuery(hql);query.setParameter("param", columnValue);return query.list();}public  boolean isEmpty(final String str) {return (null == str) || (str.trim().length() <= 0);}public  boolean isEmpty(final Character cha) {return ( null==cha) || cha.equals(' ');}public  boolean isEmpty(final Object obj) {return (null==obj);}public  boolean isEmpty(final Object[] objs) {return (null==objs) || (objs.length <= 0);}public  boolean isEmpty(final Collection<?> obj) {return (null==obj) || obj.isEmpty();}public  boolean isEmpty(final Set<?> set) {return (null==set) || set.isEmpty();}public  boolean isEmpty(final Serializable obj) {return null==obj;}public  boolean isEmpty(final Map<?, ?> map) {return (null==map) || map.isEmpty();}}

四、总结

总而言之，商城小程序的设计与实现是一个综合性的项目，涵盖了前端界面设计、后端逻辑搭建、数据管理、用户认证、支付集成等多个方面。在这个过程中，需求分析、设计规划、技术选型、开发实现、测试优化、发布推广等环节都扮演着重要的角色。
成功的商城小程序应该具备用户友好的界面设计，流畅的交互体验，以及稳定高效的数据交互。从前端到后端，从界面到数据安全，每个环节都需要精心设计和细致实现，确保整个小程序能够为用户提供便捷的购物体验。
随着不断的迭代和更新，商城小程序可以不断扩展功能，满足不同用户的需求。重要的是要持续关注用户反馈，改进和优化用户体验，同时保障数据的安全和隐私保护。
总体而言，商城小程序的设计与实现是一个技术与用户体验的完美结合，需要跨越多个领域的知识与技能，以创造出一个功能完备、安全可靠、受欢迎的商城平台。

更多推荐

实战项目

本文发布于:2024-02-27 15:30:07，感谢您对本站的认可！

本文链接:https://www.elefans.com/category/jswz/34/1707130.html