parent
0d638f9d78
commit
685dc38510
@ -1,102 +1,102 @@
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package com.tyj.dao.mysql;
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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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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import com.tyj.dao.OrderDao;
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import com.tyj.domain.Order;
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public abstract class OrderDaoImptyj implements OrderDao {
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@Override
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public List<Order> findAll() {
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String sql = "select orderid,userid,menuid,menusum,times,delivery from orders";
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List<Order> list = new ArrayList<Order>();
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// TODO Auto-generated method stub
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try (// 2.创建数据库链接
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Connection conn = DBHelper.getConnection(); // 3.创建语句对象
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PreparedStatement pstmt = conn.prepareStatement(sql);
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// 4.绑定参数
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// 5。执行查询
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ResultSet rs = pstmt.executeQuery();) {
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// 6.遍历结果集
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while (rs.next()) {
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Order order = new Order();
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order.setOrderid(rs.getLong("orderid"));
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order.setOrderdate(rs.getDate("orderdate"));
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order.setUserid(rs.getString("userid"));
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list.add(order);
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}
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} catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return list;
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}
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@Override
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public Order findById(String id) {
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// TODO Auto-generated method stub
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return null;
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}
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@Override
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public int create(Order order) {
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try (// 2.创建数据库链接
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Connection conn = DBHelper.getConnection();
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// 3.创建语句对象
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PreparedStatement pstmt = conn.prepareStatement(
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"insert into orders (orderid,userid,menuid,menusum,times,delivery)"
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+ "values (?,?,?,?,?)")) {
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// 4.绑定参数
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pstmt.setLong(1, order.getOrderid());
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pstmt.setString(2, order.getUserid());
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// util date转换为sql date
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java.util.Date now = new java.util.Date();
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// java.sql.Date date = new java.sql.Date(now.getTime());
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// pstmt.setDate(3, date);
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// Timestamp比Date更精确
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java.sql.Timestamp date = new java.sql.Timestamp(now.getTime());
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pstmt.setTimestamp(3, date);
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pstmt.setInt(4, order.getMenusum());
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pstmt.setInt(5, order.getDelivery());
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// 5.执行查询
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int a = pstmt.executeUpdate();
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System.out.printf("成功插入%d数据。\n", a);
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} catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return 0;
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}
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@Override
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public int modify(Order order) {
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// TODO Auto-generated method stub
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return 0;
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}
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@Override
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public int remove(Order order) {
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// TODO Auto-generated method stub
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return 0;
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}
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}
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package com.tyj.dao.mysql;
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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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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import com.tyj.dao.OrderDao;
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import com.tyj.domain.Order;
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public abstract class OrderDaoImptyj implements OrderDao {
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@Override
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public List<Order> findAll() {
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String sql = "select orderid,userid,menuid,menusum,times,delivery from orders";
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List<Order> list = new ArrayList<Order>();
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// TODO Auto-generated method stub
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try (// 2.创建数据库链接
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Connection conn = DBHelper.getConnection(); // 3.创建语句对象
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PreparedStatement pstmt = conn.prepareStatement(sql);
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// 4.绑定参数
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// 5。执行查询
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ResultSet rs = pstmt.executeQuery();) {
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// 6.遍历结果集
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while (rs.next()) {
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Order order = new Order();
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order.setOrderid(rs.getLong("orderid"));
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order.setOrderdate(rs.getDate("times"));
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order.setUserid(rs.getString("userid"));
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list.add(order);
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}
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} catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return list;
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}
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@Override
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public Order findById(String id) {
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// TODO Auto-generated method stub
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return null;
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}
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@Override
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public int create(Order order) {
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try (// 2.创建数据库链接
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Connection conn = DBHelper.getConnection();
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// 3.创建语句对象
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PreparedStatement pstmt = conn.prepareStatement(
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"insert into orders (orderid,userid,menuid,menusum,times,delivery)"
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+ "values (?,?,?,?,?)")) {
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// 4.绑定参数
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pstmt.setLong(1, order.getOrderid());
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pstmt.setString(2, order.getUserid());
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// util date转换为sql date
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java.util.Date now = new java.util.Date();
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// java.sql.Date date = new java.sql.Date(now.getTime());
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// pstmt.setDate(3, date);
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// Timestamp比Date更精确
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java.sql.Timestamp date = new java.sql.Timestamp(now.getTime());
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pstmt.setTimestamp(3, date);
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pstmt.setInt(4, order.getMenusum());
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pstmt.setInt(5, order.getDelivery());
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// 5.执行查询
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int a = pstmt.executeUpdate();
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System.out.printf("成功插入%d数据。\n", a);
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} catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return 0;
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}
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@Override
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public int modify(Order order) {
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// TODO Auto-generated method stub
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return 0;
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}
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@Override
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public int remove(Order order) {
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// TODO Auto-generated method stub
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return 0;
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}
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}
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