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@ -1,5 +1,9 @@
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package com.lingnan.supermarket.dao.impl;
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import com.lingnan.supermarket.dao.SupplierInfService;
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import com.lingnan.supermarket.dto.SupplierInf;
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import com.lingnan.supermarket.utils.JDBCUtil;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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@ -8,209 +12,253 @@ import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.Vector;
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import com.lingnan.supermarket.dao.SupplierInfService;
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import com.lingnan.supermarket.dto.ProdCatalog;
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import com.lingnan.supermarket.dto.SupplierInf;
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import com.lingnan.supermarket.dto.User;
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import com.lingnan.supermarket.utils.JDBCUtil;
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/**
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* 供应商信息服务实现类
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* @cwf 2210461197 2024/12/1
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*/
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// 实现供应商信息服务接口的类
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public class SupplierInfImpl implements SupplierInfService{
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// 查询所有供应商信息的方法
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@Override
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// 该方法用于查找所有未被标记为删除的供应商信息,返回一个供应商信息的向量
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// 此方法连接数据库,执行查询,并将结果封装为供应商信息对象的向量
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public Vector<SupplierInf> findAllSupplierInf() {
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Vector<SupplierInf> supplierInfs = new Vector<SupplierInf>();
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Connection conn = JDBCUtil.getConn();
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PreparedStatement preparedStatement = null;
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ResultSet resultSet=null;
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Vector<SupplierInf> supplierInfs = new Vector<SupplierInf>(); // 创建一个向量用于存储供应商信息
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Connection conn = JDBCUtil.getConn(); // 获取数据库连接
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PreparedStatement preparedStatement = null; // 初始化预编译语句对象
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ResultSet resultSet=null; // 初始化结果集对象
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String SQL = "select * from supplierInf where delmark = 1";
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String SQL = "select * from supplierInf where delmark = 1"; // SQL查询语句,选择未被标记为删除的供应商信息
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try {
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preparedStatement = conn.prepareStatement(SQL);
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resultSet = preparedStatement.executeQuery();
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while(resultSet.next()) {
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SupplierInf supplierInf = new SupplierInf();
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supplierInf.setId(resultSet.getInt("id"));
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supplierInf.setName(resultSet.getString("name"));
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supplierInf.setContact(resultSet.getString("contact"));
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supplierInf.setEmail(resultSet.getString("email"));
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supplierInf.setAddress(resultSet.getString("address"));
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supplierInf.setDelmark(resultSet.getInt("delmark"));
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supplierInfs.add(supplierInf);
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preparedStatement = conn.prepareStatement(SQL); // 准备SQL语句
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resultSet = preparedStatement.executeQuery(); // 执行查询
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while(resultSet.next()) { // 遍历结果集
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SupplierInf supplierInf = new SupplierInf(); // 创建一个新的供应商信息对象
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supplierInf.setId(resultSet.getInt("id")); // 设置供应商ID
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supplierInf.setName(resultSet.getString("name")); // 设置供应商名称
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supplierInf.setContact(resultSet.getString("contact")); // 设置供应商联系人
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supplierInf.setEmail(resultSet.getString("email")); // 设置供应商邮箱
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supplierInf.setAddress(resultSet.getString("address")); // 设置供应商地址
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supplierInf.setDelmark(resultSet.getInt("delmark")); // 设置删除标记
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supplierInfs.add(supplierInf); // 将供应商信息对象添加到向量中
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}
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} catch (SQLException e) {
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e.printStackTrace();
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} finally {
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JDBCUtil.close(resultSet, preparedStatement, conn);
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} catch (SQLException e) { // 捕获SQL异常
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e.printStackTrace(); // 打印异常堆栈信息
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} finally { // 无论是否发生异常,都会执行的代码块
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// 关闭数据库连接和相关资源
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JDBCUtil.close(resultSet, preparedStatement, conn); // 关闭结果集、预编译语句和数据库连接
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}
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return supplierInfs;
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return supplierInfs; // 返回存储所有供应商信息的向量
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}
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// 根据供应商名称查询供应商信息的方法
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@Override
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// 定义一个查找供应商信息的方法,根据传入的供应商对象进行查询
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/**
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* 根据供应商名称查找供应商信息
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* @param supplierInf 包含供应商名称的供应商信息对象
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* @return 返回包含查询到的供应商信息的向量
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*/
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public Vector<SupplierInf> findByNameSupplierInf(SupplierInf supplierInf) {
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//SupplierInf supplierInf = new SupplierInf();
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Connection conn = JDBCUtil.getConn();
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Vector<SupplierInf> v = new Vector<>();
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System.out.println(supplierInf.getName());
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PreparedStatement preparedStatement = null;
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ResultSet resultSet = null;
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Connection conn = JDBCUtil.getConn(); // 获取数据库连接
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Vector<SupplierInf> v = new Vector<>(); // 创建一个向量用于存储供应商信息
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System.out.println(supplierInf.getName()); // 打印供应商名称
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PreparedStatement preparedStatement = null; // 初始化预编译语句对象
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ResultSet resultSet = null; // 初始化结果集对象
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try {
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if(!supplierInf.getName().equals("")){
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String s='%'+supplierInf.getName()+'%';
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preparedStatement = conn.prepareStatement("select * from supplierInf where name like ? and delmark = 1");
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preparedStatement.setString(1, s);
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if(!supplierInf.getName().equals("")){ // 如果供应商名称不为空
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String s='%'+supplierInf.getName()+'%'; // 构建模糊查询字符串
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preparedStatement = conn.prepareStatement("select * from supplierInf where name like ? and delmark = 1"); // 准备SQL查询语句
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preparedStatement.setString(1, s); // 设置查询参数
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}else
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preparedStatement = conn.prepareStatement("select * from supplierInf where delmark = 1");
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resultSet = preparedStatement.executeQuery();
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while (resultSet.next()) {
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supplierInf = new SupplierInf();
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supplierInf.setId(resultSet.getInt("id"));
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supplierInf.setName(resultSet.getString("name"));
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supplierInf.setAddress(resultSet.getString("address"));
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supplierInf.setContact(resultSet.getString("contact"));
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supplierInf.setEmail(resultSet.getString("email"));
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supplierInf.setDelmark(1);
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v.add(supplierInf);
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preparedStatement = conn.prepareStatement("select * from supplierInf where delmark = 1"); // 准备SQL查询语句,选择未被标记为删除的供应商信息
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resultSet = preparedStatement.executeQuery(); // 执行查询
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while (resultSet.next()) { // 遍历结果集
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supplierInf = new SupplierInf(); // 创建一个新的供应商信息对象
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supplierInf.setId(resultSet.getInt("id")); // 设置供应商ID
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supplierInf.setName(resultSet.getString("name")); // 设置供应商名称
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supplierInf.setAddress(resultSet.getString("address")); // 设置供应商地址
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supplierInf.setContact(resultSet.getString("contact")); // 设置供应商联系人
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supplierInf.setEmail(resultSet.getString("email")); // 设置供应商邮箱
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supplierInf.setDelmark(1); // 设置删除标记
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v.add(supplierInf); // 将供应商信息对象添加到向量中
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}
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Iterator<SupplierInf> it=v.iterator();
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while(it.hasNext()){
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supplierInf=it.next();
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System.out.println(supplierInf.getId()+" "+supplierInf.getName()+" "+supplierInf.getAddress()+" "+supplierInf.getContact()+" "+supplierInf.getEmail()+" "+supplierInf.getDelmark()+" ");
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}
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} catch (SQLException e) {
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e.printStackTrace();
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} finally {
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JDBCUtil.close(resultSet, preparedStatement, conn);
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Iterator<SupplierInf> it=v.iterator(); // 获取向量的迭代器
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while(it.hasNext()){ // 遍历向量
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supplierInf=it.next(); // 获取下一个供应商信息对象
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System.out.println(supplierInf.getId()+" "+supplierInf.getName()+" "+supplierInf.getAddress()+" "+supplierInf.getContact()+" "+supplierInf.getEmail()+" "+supplierInf.getDelmark()+" "); // 打印供应商信息
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}
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} catch (SQLException e) { // 捕获SQL异常
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e.printStackTrace(); // 打印异常堆栈信息
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} finally { // 无论是否发生异常,都会执行的代码块
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JDBCUtil.close(resultSet, preparedStatement, conn); // 关闭结果集、预编译语句和数据库连接
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}
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return v;
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return v; // 返回存储供应商信息的向量
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}
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// 添加供应商信息的方法
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/**
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* 添加供应商信息
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*
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* @param supplierInf 供应商信息对象
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* @return 插入结果标志,1表示成功,0表示失败
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*/
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@Override
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public int addSupplierInf(SupplierInf supplierInf) {
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int flag = 0;
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Connection conn = JDBCUtil.getConn();
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PreparedStatement preparedStatement = null;
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int flag = 0; // 初始化标志为0
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Connection conn = JDBCUtil.getConn(); // 获取数据库连接
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PreparedStatement preparedStatement = null; // 初始化预编译语句对象
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try {
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preparedStatement = conn.prepareStatement
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("insert into supplierInf values (null,?,?,?,?,?)");
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("insert into supplierInf values (null,?,?,?,?,?)"); // 准备SQL插入语句
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//preparedStatement.setInt(1, supplierInf.getId());
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preparedStatement.setString(1, supplierInf.getName());
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preparedStatement.setString(2, supplierInf.getAddress());
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preparedStatement.setString(3, supplierInf.getContact());
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preparedStatement.setString(4, supplierInf.getEmail());
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preparedStatement.setInt(5, 1);
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preparedStatement.executeUpdate();
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flag = 1;
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} catch (SQLException e) {
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e.printStackTrace();
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} finally {
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JDBCUtil.close(null,preparedStatement, conn);
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preparedStatement.setString(1, supplierInf.getName()); // 设置供应商名称
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preparedStatement.setString(2, supplierInf.getAddress()); // 设置供应商地址
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preparedStatement.setString(3, supplierInf.getContact()); // 设置供应商联系人
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preparedStatement.setString(4, supplierInf.getEmail()); // 设置供应商邮箱
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preparedStatement.setInt(5, 1); // 设置删除标记
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preparedStatement.executeUpdate(); // 执行插入操作
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flag = 1; // 设置标志为1,表示插入成功
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} catch (SQLException e) { // 捕获SQL异常
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e.printStackTrace(); // 打印异常堆栈信息
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} finally { // 无论是否发生异常,都会执行的代码块
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JDBCUtil.close(null,preparedStatement, conn); // 关闭预编译语句和数据库连接
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}
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return flag;
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return flag; // 返回插入结果标志
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}
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// 删除供应商信息的方法
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/**
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* 删除指定ID的供应商信息
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*
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* @param id 要删除的供应商ID
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* @return 删除操作的结果标志,1表示成功,0表示失败
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*/
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@Override
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public int deleteSupplierInf(int id) {
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int flag = 0;
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int flag = 0; // 初始化标志为0
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Connection conn = JDBCUtil.getConn();
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PreparedStatement preparedStatement = null;
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Connection conn = JDBCUtil.getConn(); // 获取数据库连接
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PreparedStatement preparedStatement = null; // 初始化预编译语句对象
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try {
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preparedStatement = conn.prepareStatement
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("delete from supplierInf where id = ?");
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preparedStatement.setInt(1, id);
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preparedStatement.executeUpdate();
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flag = 1;
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} catch (SQLException e) {
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e.printStackTrace();
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} finally {
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JDBCUtil.close(null,preparedStatement, conn);
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("delete from supplierInf where id = ?"); // 准备SQL删除语句
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preparedStatement.setInt(1, id); // 设置供应商ID
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preparedStatement.executeUpdate(); // 执行删除操作
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flag = 1; // 设置标志为1,表示删除成功
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} catch (SQLException e) { // 捕获SQL异常
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e.printStackTrace(); // 打印异常堆栈信息
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} finally { // 无论是否发生异常,都会执行的代码块
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JDBCUtil.close(null,preparedStatement, conn); // 关闭预编译语句和数据库连接
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}
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return flag;
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return flag; // 返回删除结果标志
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}
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// 更新供应商信息的方法
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/**
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* 更新供应商信息
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*
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* @param supplierInf 供应商信息对象
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* @return 更新结果标志,1表示成功,0表示失败
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*/
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@Override
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public int updateSupplierInf(SupplierInf supplierInf) {
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int flag=0;
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Connection conn = JDBCUtil.getConn();
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PreparedStatement preparedStatement = null;
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int flag=0; // 初始化标志为0
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Connection conn = JDBCUtil.getConn(); // 获取数据库连接
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PreparedStatement preparedStatement = null; // 初始化预编译语句对象
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try {
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preparedStatement = conn.prepareStatement("update supplierInf set name=?,address=?,contact=?,email=?,delmark=? where id = ?");
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preparedStatement.setString(1,supplierInf.getName());
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preparedStatement.setString(2,supplierInf.getAddress());
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preparedStatement.setString(3,supplierInf.getContact());
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preparedStatement.setString(4, supplierInf.getEmail());
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preparedStatement.setInt(5, supplierInf.getDelmark());
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preparedStatement.setInt(6,supplierInf.getId());
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preparedStatement.executeUpdate();
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flag = 1;
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} catch (SQLException e) {
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e.printStackTrace();
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|
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} finally {
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JDBCUtil.close(null, preparedStatement, conn);
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preparedStatement = conn.prepareStatement("update supplierInf set name=?,address=?,contact=?,email=?,delmark=? where id = ?"); // 准备SQL更新语句
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preparedStatement.setString(1,supplierInf.getName()); // 设置供应商名称
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preparedStatement.setString(2,supplierInf.getAddress()); // 设置供应商地址
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preparedStatement.setString(3,supplierInf.getContact()); // 设置供应商联系人
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preparedStatement.setString(4, supplierInf.getEmail()); // 设置供应商邮箱
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preparedStatement.setInt(5, supplierInf.getDelmark()); // 设置删除标记
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preparedStatement.setInt(6,supplierInf.getId()); // 设置供应商ID
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|
|
preparedStatement.executeUpdate(); // 执行更新操作
|
|
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|
|
flag = 1; // 设置标志为1,表示更新成功
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} catch (SQLException e) { // 捕获SQL异常
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|
e.printStackTrace(); // 打印异常堆栈信息
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|
} finally { // 无论是否发生异常,都会执行的代码块
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|
|
JDBCUtil.close(null, preparedStatement, conn); // 关闭预编译语句和数据库连接
|
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|
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}
|
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|
|
return flag;
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|
|
return flag; // 返回更新结果标志
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|
|
|
|
}
|
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// 获取所有供应商名称的方法
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|
|
// 该方法从数据库中查询所有供应商的名称,并将其存储在一个列表中返回
|
|
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|
|
@Override
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|
|
|
|
public ArrayList<String> findNameSupplier() {
|
|
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|
|
Connection conn=JDBCUtil.getConn();
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|
|
|
|
ArrayList<String> v = new ArrayList<String>();
|
|
|
|
|
SupplierInf supplierInf;
|
|
|
|
|
PreparedStatement pstmt = null;
|
|
|
|
|
ResultSet resultSet=null;
|
|
|
|
|
v.add("全部");
|
|
|
|
|
Connection conn=JDBCUtil.getConn(); // 获取数据库连接
|
|
|
|
|
ArrayList<String> v = new ArrayList<String>(); // 创建一个列表用于存储供应商名称
|
|
|
|
|
SupplierInf supplierInf; // 声明一个供应商信息对象
|
|
|
|
|
PreparedStatement pstmt = null; // 初始化预编译语句对象
|
|
|
|
|
ResultSet resultSet=null; // 初始化结果集对象
|
|
|
|
|
v.add("全部"); // 添加默认选项“全部”
|
|
|
|
|
try {
|
|
|
|
|
pstmt = conn.prepareStatement("select * from supplierInf");
|
|
|
|
|
resultSet = pstmt.executeQuery();
|
|
|
|
|
while(resultSet.next()){
|
|
|
|
|
pstmt = conn.prepareStatement("select * from supplierInf"); // 准备SQL查询语句
|
|
|
|
|
resultSet = pstmt.executeQuery(); // 执行查询
|
|
|
|
|
while(resultSet.next()){ // 遍历结果集
|
|
|
|
|
|
|
|
|
|
v.add(resultSet.getString("name"));
|
|
|
|
|
v.add(resultSet.getString("name")); // 将供应商名称添加到列表中
|
|
|
|
|
}
|
|
|
|
|
} catch (SQLException e) {
|
|
|
|
|
} catch (SQLException e) { // 捕获SQL异常
|
|
|
|
|
// TODO Auto-generated catch block
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
}finally{
|
|
|
|
|
JDBCUtil.close(resultSet, pstmt, conn);
|
|
|
|
|
e.printStackTrace(); // 打印异常堆栈信息
|
|
|
|
|
}finally{ // 无论是否发生异常,都会执行的代码块
|
|
|
|
|
JDBCUtil.close(resultSet, pstmt, conn); // 关闭结果集、预编译语句和数据库连接
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return v;
|
|
|
|
|
return v; // 返回存储供应商名称的列表
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 根据供应商名称查找其ID的方法
|
|
|
|
|
/**
|
|
|
|
|
* 根据给定的供应商名称查找对应的供应商ID。
|
|
|
|
|
* 如果名称为“全部”,返回默认ID(0)。
|
|
|
|
|
* 如果未找到对应的供应商,返回-1作为标志。
|
|
|
|
|
*
|
|
|
|
|
* @param name 供应商名称
|
|
|
|
|
* @return 供应商ID或标志
|
|
|
|
|
*/
|
|
|
|
|
@Override
|
|
|
|
|
public int findIdSupplierByName(String name) {
|
|
|
|
|
int flag = -1;
|
|
|
|
|
Connection conn = JDBCUtil.getConn();
|
|
|
|
|
PreparedStatement preparedStatement = null;
|
|
|
|
|
ResultSet resultSet= null;
|
|
|
|
|
int id=0;
|
|
|
|
|
int flag = -1; // 初始化标志为-1
|
|
|
|
|
Connection conn = JDBCUtil.getConn(); // 获取数据库连接
|
|
|
|
|
PreparedStatement preparedStatement = null; // 初始化预编译语句对象
|
|
|
|
|
ResultSet resultSet= null; // 初始化结果集对象
|
|
|
|
|
int id=0; // 初始化供应商ID为0
|
|
|
|
|
try {
|
|
|
|
|
if(name.equals("全部"))
|
|
|
|
|
return id;
|
|
|
|
|
if(name.equals("全部")) // 如果供应商名称为“全部”
|
|
|
|
|
return id; // 返回默认ID
|
|
|
|
|
preparedStatement = conn.prepareStatement
|
|
|
|
|
("select * from supplierInf where name=?");
|
|
|
|
|
preparedStatement.setString(1, name);
|
|
|
|
|
resultSet=preparedStatement.executeQuery();
|
|
|
|
|
if(resultSet.next()){
|
|
|
|
|
return resultSet.getInt("id");
|
|
|
|
|
("select * from supplierInf where name=?"); // 准备SQL查询语句
|
|
|
|
|
preparedStatement.setString(1, name); // 设置查询参数
|
|
|
|
|
resultSet=preparedStatement.executeQuery(); // 执行查询
|
|
|
|
|
if(resultSet.next()){ // 如果找到对应记录
|
|
|
|
|
return resultSet.getInt("id"); // 返回供应商ID
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
} catch (SQLException e) {
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
} finally {
|
|
|
|
|
JDBCUtil.close(null,preparedStatement, conn);
|
|
|
|
|
} catch (SQLException e) { // 捕获SQL异常
|
|
|
|
|
e.printStackTrace(); // 打印异常堆栈信息
|
|
|
|
|
} finally { // 无论是否发生异常,都会执行的代码块
|
|
|
|
|
JDBCUtil.close(null,preparedStatement, conn); // 关闭预编译语句和数据库连接
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return flag;
|
|
|
|
|
return flag; // 返回查询结果标志
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|