src/com/demo/dao/impl/SpareDAOImpl.java

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package com.demo.dao.impl;

import com.demo.dao.SoftwareDAO;
import com.demo.dao.SpareDAO;
import com.demo.util.Util;
import com.demo.vo.Software;
import com.demo.vo.Spare;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 多媒体常用备件的DAO层（数据层）的具体实现类，对SpareDAO接口中定义的增删改查等抽象方法作出具体的功能实现
 */
public class SpareDAOImpl implements SpareDAO {

    //@Override
    public void add(Spare vo) {
        String sql = "insert into `t_spare` (`spare_name`,`spare_count`,`spare_time`,`spare_tel`,`spare_link`,`spare_no`,`spare_note`) values(?,?,?,?,?,?,?)";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getSpareName());
            ps.setString(2, vo.getSpareCount());
            ps.setString(3, vo.getSpareTime());
            ps.setString(4, vo.getSpareTel());
            ps.setString(5, vo.getSpareLink());
            ps.setString(6, vo.getSpareNo());
            ps.setString(7, vo.getSpareNote());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //@Override
    public void update(Spare vo) {
        String sql = "update `t_spare` set `spare_name` = ? ,`spare_count` = ? ,`spare_time` = ? ,`spare_tel` = ? ,`spare_link` = ? ,`spare_no` = ? ,`spare_note` = ?   where `id` = ?";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getSpareName());
            ps.setString(2, vo.getSpareCount());
            ps.setString(3, vo.getSpareTime());
            ps.setString(4, vo.getSpareTel());
            ps.setString(5, vo.getSpareLink());
            ps.setString(6, vo.getSpareNo());
            ps.setString(7, vo.getSpareNote());
            ps.setLong(8, vo.getId());