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Java GUI实现学生成绩管理系统

2019年07月19日 | 移动技术网IT编程 | 我要评论

学习java有一年多了，一直在做web方面的练习，在一个项目中发现需要用到gui的相关知识，结果没法做出来，网上这方面的文章又不是很多，所有只好自己硬着头皮从头再学一遍了，不过学习后发现，其实gui是非常有趣的，他并不像web程序一样依赖互联网，而且还有许多布局和android相差不是很大，这才发现自己竟又爱上gui的开发了，不多说了，直接上代码吧，相信有过android或相关界面开发的都明白这其中的道理。

先看看效果吧

1.登录主界面

package edu.gzu.stumanager; 
 
import java.awt.eventqueue; 
 
import javax.swing.jframe; 
import javax.swing.jlabel; 
import javax.swing.joptionpane; 
 
import java.awt.toolkit; 
 
import javax.swing.jtextfield; 
 
import edu.gzu.stumanager.dao.userloginvalid; 
import edu.gzu.stumanager.domain.studentinfo; 
import edu.gzu.stumanager.view.studentmainview; 
 
import java.awt.choice; 
import java.awt.font; 
import java.awt.button; 
import java.awt.event.mouseadapter; 
import java.awt.event.mouseevent; 
 
public class mainui { 
 
 private jframe frame; 
 private jtextfield textfield; 
 private jtextfield textfield_1; 
 
 /** 
 * launch the application. 
 */ 
 public static void main(string[] args) { 
 eventqueue.invokelater(new runnable() { 
  public void run() { 
  try { 
   mainui window = new mainui(); 
   window.frame.setvisible(true); 
  } catch (exception e) { 
   e.printstacktrace(); 
  } 
  } 
 }); 
 } 
 
 /** 
 * create the application. 
 */ 
 public mainui() { 
 initialize(); 
 } 
 
 /** 
 * initialize the contents of the frame. 
 */ 
 private void initialize() { 
 frame = new jframe(); 
 frame.settitle("\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf\uff08\u767b\u5f55\uff09"); 
 frame.seticonimage(toolkit.getdefaulttoolkit().getimage(mainui.class.getresource("/image/func_list7_privmana.png"))); 
 frame.setbounds(400, 250, 450, 300); 
 frame.setdefaultcloseoperation(jframe.exit_on_close); 
 frame.getcontentpane().setlayout(null); 
  
 jlabel lblnewlabel = new jlabel("\u5b66\u751f\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf\u7528\u6237\u767b\u5f55\uff01"); 
 lblnewlabel.setfont(new font("宋体", font.plain, 16)); 
 lblnewlabel.setbounds(111, 17, 287, 15); 
 frame.getcontentpane().add(lblnewlabel); 
  
 jlabel lblnewlabel_1 = new jlabel("\u7528\u6237\u540d\uff1a"); 
 lblnewlabel_1.setfont(new font("宋体", font.plain, 14)); 
 lblnewlabel_1.setbounds(87, 67, 67, 15); 
 frame.getcontentpane().add(lblnewlabel_1); 
  
 textfield = new jtextfield(); 
 textfield.setbounds(154, 64, 141, 21); 
 frame.getcontentpane().add(textfield); 
 textfield.setcolumns(10); 
  
 jlabel label = new jlabel("\u5bc6 \u7801\uff1a"); 
 label.setfont(new font("宋体", font.plain, 14)); 
 label.setbounds(87, 108, 67, 15); 
 frame.getcontentpane().add(label); 
  
 textfield_1 = new jtextfield(); 
 textfield_1.setcolumns(10); 
 textfield_1.setbounds(154, 103, 141, 21); 
 frame.getcontentpane().add(textfield_1); 
  
 jlabel lblnewlabel_2 = new jlabel("\u6211\u7684\u8eab\u4efd\u662f\uff1a"); 
 lblnewlabel_2.setfont(new font("宋体", font.plain, 14)); 
 lblnewlabel_2.setbounds(105, 150, 97, 15); 
 frame.getcontentpane().add(lblnewlabel_2); 
  
 final choice choice = new choice(); 
 choice.setbounds(210, 147, 74, 21); 
 choice.add("学生"); 
 choice.add("教师"); 
 choice.add("系统管理员"); 
 frame.getcontentpane().add(choice); 
  
 button button = new button("\u767b\u5f55"); 
 button.setbounds(87, 194, 76, 23); 
 button.addmouselistener(new mouseadapter() { 
  @override 
  public void mouseclicked(mouseevent e) { 
  string user=textfield.gettext(); 
  string password=textfield_1.gettext(); 
  string shenfen=choice.getselecteditem(); 
  if(user.equals("")||user==null){ 
   joptionpane.showmessagedialog(frame, shenfen+":您好，帐号不能为空！"); 
   return; 
  }else if(password.equals("")||password==null){ 
   joptionpane.showmessagedialog(frame, shenfen+":您好，密码不能为空！"); 
   return; 
  }else{ 
   studentinfo stu=new studentinfo(integer.parseint(user), 
    integer.parseint(password),shenfen); 
   userloginvalid dao=new userloginvalid(); 
   string result=dao.isvalid(stu); 
   
   if("登录成功！".equals(result)){ 
   joptionpane.showmessagedialog(frame,result); 
   studentmainview index=new studentmainview(stu); 
   jframe frame2=index.getframe(); 
   frame2.setvisible(true); 
   frame.dispose(); 
   }else{ 
   joptionpane.showmessagedialog(frame,result); 
   } 
   
  } 
  } 
 }); 
 frame.getcontentpane().add(button); 
  
 button button_1 = new button("\u53d6\u6d88"); 
 button_1.setbounds(219, 194, 76, 23); 
 frame.getcontentpane().add(button_1); 
  
  
 } 
 
}

2.登录验证逻辑

package edu.gzu.stumanager.dao; 
 
import edu.gzu.stumanager.domain.studentinfo; 
 
public class userloginvalid { 
 
 public string isvalid(studentinfo stu){ 
 int idnum=stu.getidnum(); 
 int password=stu.getpassword(); 
 string idntify=stu.getidentify(); 
 string result=null; 
  
 if("学生".equals(idntify)){ 
  if(idnum==1207010209&&password==123){ 
  stu.setname("刘明胜 同学"); 
  result="登录成功！"; 
  }else{ 
  result="学生帐号中不存在此用户，请确认身份后再次登录！"; 
  } 
 }else if("教师".equals(idntify)){ 
  if(idnum==1174386356&&password==123){ 
  stu.setname("刘明胜 老师"); 
  result="登录成功！"; 
  }else{ 
  result="教师帐号中不存在此用户，请确认身份后再次登录！"; 
  } 
 }else if("系统管理员".equals(idntify)){ 
  if(idnum==999999&&password==123){ 
  stu.setname("系统管理员"); 
  result="登录成功！"; 
  }else{ 
  result="系统管理员帐号中不存在此用户，请确认身份后再次登录！"; 
  } 
 } 
  
  
 return result; 
 } 
}

3.用户对象（这是一个简单bean）

package edu.gzu.stumanager.domain; 
 
public class studentinfo { 
 private int idnum; 
 private string name; 
 private int password; 
 private string identify; 
 
 public studentinfo(int idnum,int password, string identify) { 
 super(); 
 this.idnum = idnum; 
 this.password = password; 
 this.identify = identify; 
 } 
 public int getidnum() { 
 return idnum; 
 } 
 public void setidnum(int idnum) { 
 this.idnum = idnum; 
 } 
 public string getname() { 
 return name; 
 } 
 public void setname(string name) { 
 this.name = name; 
 } 
 public int getpassword() { 
 return password; 
 } 
 public void setpassword(int password) { 
 this.password = password; 
 } 
 public string getidentify() { 
 return identify; 
 } 
 public void setidentify(string identify) { 
 this.identify = identify; 
 } 
 
 
}

4.登录成功后的主界面

package edu.gzu.stumanager.view; 
 
import java.awt.button; 
import java.awt.canvas; 
import java.awt.choice; 
import java.awt.color; 
import java.awt.toolkit; 
import java.awt.event.itemevent; 
import java.awt.event.itemlistener; 
 
import javax.swing.jframe; 
import javax.swing.jlabel; 
import javax.swing.joptionpane; 
import javax.swing.jpanel; 
import javax.swing.jtextfield; 
 
import edu.gzu.stumanager.domain.studentinfo; 
 
public class studentmainview{ 
 private jframe frame; 
 private jtextfield textfield; 
 private jtextfield textfield_1; 
 private jtextfield textfield_2; 
 private jtextfield textfield_3; 
 
 private studentinfo info; 
 
 /** 
 * create the frame. 
 * @wbp.parser.entrypoint 
 */ 
 public studentmainview(studentinfo info) { 
 this.info=info; 
 } 
 
 public jframe getframe(){ 
 initialize(); 
 return frame; 
 } 
 
 /** 
 * initialize the contents of the frame. 
 * @wbp.parser.entrypoint 
 */ 
 public void initialize() { 
 frame = new jframe(); 
 frame.settitle("\u6210\u7ee9\u7ba1\u7406\u7cfb\u7edf\uff08\u5b66\u751f\u7248\uff09"); 
 frame.seticonimage(toolkit.getdefaulttoolkit().getimage(studentmainview.class.getresource("/image/func_list7_privmana.png"))); 
 frame.setbounds(300,150, 550, 300); 
 frame.setdefaultcloseoperation(jframe.exit_on_close); 
 frame.getcontentpane().setlayout(null); 
  
 jlabel lblnewlabel = new jlabel("欢迎【"+info.getname()+"】登录学生成绩管理系统！"); 
 lblnewlabel.setbounds(54, 10, 322, 15); 
 frame.getcontentpane().add(lblnewlabel); 
  
 jpanel panel = new jpanel(); 
 panel.setbounds(29, 52, 250, 180); 
 frame.getcontentpane().add(panel); 
 panel.setlayout(null); 
  
 jlabel lblnewlabel_1 = new jlabel("\u6210\u7ee9\u6570\u636e"); 
 lblnewlabel_1.setbounds(94, 10, 65, 15); 
 panel.add(lblnewlabel_1); 
  
 jlabel lblnewlabel_2 = new jlabel("\u5b66\u53f7\uff1a"); 
 lblnewlabel_2.setbounds(22, 37, 40, 15); 
 panel.add(lblnewlabel_2); 
  
 textfield = new jtextfield(); 
 textfield.setbounds(72, 35, 154, 21); 
 textfield.settext(info.getidnum()+""); 
 panel.add(textfield); 
 textfield.setcolumns(10); 
  
 jlabel lblnewlabel_3 = new jlabel("\u59d3\u540d\uff1a"); 
 lblnewlabel_3.setbounds(22, 67, 44, 15); 
 panel.add(lblnewlabel_3); 
  
 textfield_1 = new jtextfield(); 
 textfield_1.setbounds(72, 66, 154, 21); 
 textfield_1.settext(info.getname()); 
 panel.add(textfield_1); 
 textfield_1.setcolumns(10); 
  
 canvas canvas = new canvas(); 
 canvas.setbackground(color.blue); 
 canvas.setbounds(22, 100, 205, 1); 
 panel.add(canvas); 
  
 jlabel lblnewlabel_4 = new jlabel("\u8bfe\u7a0b\u540d"); 
 lblnewlabel_4.setbounds(22, 116, 47, 15); 
 panel.add(lblnewlabel_4); 
  
 jlabel lblnewlabel_5 = new jlabel("\u6210\u7ee9"); 
 lblnewlabel_5.setbounds(160, 116, 43, 15); 
 panel.add(lblnewlabel_5); 
  
 textfield_2 = new jtextfield(); 
 textfield_2.setbounds(22, 140, 123, 21); 
 panel.add(textfield_2); 
 textfield_2.setcolumns(10); 
  
 textfield_3 = new jtextfield(); 
 textfield_3.setbounds(159, 140, 66, 21); 
 panel.add(textfield_3); 
 textfield_3.setcolumns(10); 
  
 jpanel panel_1 = new jpanel(); 
 panel_1.setbounds(317, 52, 110, 180); 
 frame.getcontentpane().add(panel_1); 
 panel_1.setlayout(null); 
  
 jlabel lblnewlabel_6 = new jlabel("\u64cd\u4f5c\u83dc\u5355"); 
 lblnewlabel_6.setbounds(15, 10, 54, 15); 
 panel_1.add(lblnewlabel_6); 
  
 button button = new button("\u7b2c\u4e00\u95e8\u8bfe\u7a0b"); 
 button.setbounds(10, 31, 76, 23); 
 panel_1.add(button); 
  
 button button_1 = new button("\u4e0b\u4e00\u95e8\u8bfe\u7a0b"); 
 button_1.setbounds(10, 61, 76, 23); 
 panel_1.add(button_1); 
  
 button button_2 = new button("\u4e0a\u4e00\u95e8\u8bfe\u7a0b"); 
 button_2.setactioncommand("\u4e0a\u4e00\u95e8\u8bfe\u7a0b"); 
 button_2.setbounds(10, 90, 76, 23); 
 panel_1.add(button_2); 
  
 button button_3 = new button("\u6700\u540e\u4e00\u95e8\u8bfe"); 
 button_3.setbounds(10, 117, 76, 23); 
 panel_1.add(button_3); 
  
 choice choice = new choice(); 
 choice.setbounds(10, 149, 76, 21); 
 choice.add("选择课程"); 
 choice.add("高等数学"); 
 choice.add("大学英语"); 
 choice.add("马列主义"); 
 choice.add("毛泽东思想"); 
 choice.add("计算机图形学"); 
 choice.additemlistener(new itemlistener() { 
  
  @override 
  public void itemstatechanged(itemevent e) { 
  object[] objs=e.getitemselectable().getselectedobjects(); 
  for(object ob:objs){ 
//   joptionpane.showmessagedialog(frame, ob.tostring()); 
   if("高等数学".equals(ob.tostring())){ 
   textfield_2.settext("高等数学"); 
   textfield_3.settext("98"); 
   }else if("大学英语".equals(ob.tostring())){ 
   textfield_2.settext("大学英语"); 
   textfield_3.settext("87"); 
   }else if("马列主义".equals(ob.tostring())){ 
   textfield_2.settext("马列主义"); 
   textfield_3.settext("88"); 
   }else if("毛泽东思想".equals(ob.tostring())){ 
   textfield_2.settext("毛泽东思想"); 
   textfield_3.settext("73"); 
   }else if("计算机图形学".equals(ob.tostring())){ 
   textfield_2.settext("计算机图形学"); 
   textfield_3.settext("97"); 
   } 
  } 
   
   
  } 
 }); 
  
 panel_1.add(choice); 
 } 
 
}

这样就能轻松实现登录验证了，本打算从数据库读取数据的，由于时间关系，这里就简单的直接验证了，后续有时间的话再做其他的部分。

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Java GUI实现学生成绩管理系统

2019年07月19日 | 移动技术网IT编程 | 我要评论

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