java实验报告五.doc

java实验报告五 篇一：java实验报告五5 天津理工大学实验报告 学院（系）名称：计算机与通信工程学院 源程序： 工具类： package Homework; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; public class DBUtil { private static String driver; private static String url; private static String username; private static String password; static{ driver=quot;com.mysql.jdbc.Driverquot;; url=quot;jdbc:mysql://localhost:3306/mydb?useUnicode=trueamp;characterEncoding=UTF-8 quot;; username=quot;rootquot;; password=null; } public static Connection open(){ try { Class.forName(driver); return DriverManager.getConnection(url,username,password);} catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } public static void close(Connection conn){ if(conn!=null){ try { conn.close(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } Student类，里面包含数据库的列和set和get方法 package Homework; public class Student { int id; public int getId() { } public void setId(int id) { } String name; this.id = id; String sex; int number; int account; String college; public String getName() { } public void setName(String name) { } public String getSex() { } public void setSex(String sex) { } public int getNumber() { } public void setNumber(int number) { } public int getAccount() { } public void setAccount(int account) { } public String getCollege() { } public void setCollege(String college) { } @Override public String toString() {} return name; = name; return sex; this.sex = sex; return number; this.number = number; return account; this.account = account; return college; this.college = college; // TODO Auto-generated method stub return name+quot;-quot;+sex+quot;-quot;+number+quot;-quot;+account+quot;quot;+college; Example类：创建一个简单的界面，使用的是BorderLayout布局，然后实现增 删 改 查。 package Homework; import java.awt.BorderLayout; import java.awt.Component; import java.awt.FlowLayout; import java.awt.ev