本文实例为大家分享了java实现医院管理系统的具体代码，供大家参考，具体内容如下
1.开发工具
netbeans8.2
mysql5.7
mysql-connector-java-5.1.6.jar
2.演示
登录界面
增删查改界面
3.源码
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create table user (
username varchar(255) not null,
password varchar(255) default null,
primary key (username)
) engine=innodb default charset=utf8;
create table doctor_info (
no varchar(45) not null,
name varchar(45) default null,
departments varchar(45) default null,
level varchar(45) default null,
ghf varchar(45) default null,
primary key (no)
) engine=innodb default charset=utf8;
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package 经典增删查改;
import com.mysql.jdbc.connection;
import java.sql.resultset;
import java.sql.sqlexception;
import java.sql.statement;
import java.util.logging.level;
import java.util.logging.logger;
import javax.swing.jcombobox;
import javax.swing.joptionpane;
public class login extends javax.swing.jframe {
private int flag;
public login() {
initcomponents();
}
/**
* this method is called from within the constructor to initialize the form.
* warning: do not modify this code. the content of this method is always
* regenerated by the form editor.
*/
@suppresswarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="generated code">
private void initcomponents() {
jlabel1 = new javax.swing.jlabel();
jlabel2 = new javax.swing.jlabel();
jtextfield2 = new javax.swing.jtextfield();
jpasswordfield1 = new javax.swing.jpasswordfield();
jbutton2 = new javax.swing.jbutton();
jbutton3 = new javax.swing.jbutton();
setdefaultcloseoperation(javax.swing.windowconstants.exit_on_close);
jlabel1.settext("账号");
jlabel2.settext("密码");
jtextfield2.settext(" ");
jbutton2.settext("登录");
jbutton2.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
jbutton2actionperformed(evt);
}
});
jbutton3.settext("退出");
jbutton3.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
jbutton3actionperformed(evt);
}
});
javax.swing.grouplayout layout = new javax.swing.grouplayout(getcontentpane());
getcontentpane().setlayout(layout);
layout.sethorizontalgroup(
layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgap(103, 103, 103)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.trailing)
.addcomponent(jlabel2)
.addcomponent(jlabel1))
.addpreferredgap(javax.swing.layoutstyle.componentplacement.unrelated)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.trailing, false)
.addgroup(layout.createsequentialgroup()
.addcomponent(jbutton2)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related, 35, short.max_value)
.addcomponent(jbutton3))
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading, false)
.addcomponent(jtextfield2, javax.swing.grouplayout.default_size, 149, short.max_value)
.addcomponent(jpasswordfield1)))
.addcontainergap(114, short.max_value))
);
layout.setverticalgroup(
layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgap(69, 69, 69)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jlabel1)
.addcomponent(jtextfield2, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size))
.addpreferredgap(javax.swing.layoutstyle.componentplacement.unrelated)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jlabel2, javax.swing.grouplayout.preferred_size, 26, javax.swing.grouplayout.preferred_size)
.addcomponent(jpasswordfield1, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size))
.addgap(18, 18, 18)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jbutton2)
.addcomponent(jbutton3))
.addcontainergap(49, short.max_value))
);
pack();
}// </editor-fold>
private void jbutton3actionperformed(java.awt.event.actionevent evt) {
system.exit(0);
}
private void jbutton2actionperformed(java.awt.event.actionevent evt) {
try {
connection con = dbconnection.getconnection();
statement stmt = con.createstatement();
string sql="select *from user";
resultset rs = stmt.executequery(sql);
string usename=jtextfield2.gettext().trim();
char[] p=jpasswordfield1.getpassword();
string pwd=new string(p);
string name = null;
string pass = null;
while(rs.next()){
name=rs.getstring(1);
pass=rs.getstring(2);
if(usename.equals(name)&&pwd.equals(pass)){
system.out.println("登录成功！！");
new doctorinfogui().setvisible(true);
this.dispose();
}
}
} catch (classnotfoundexception ex) {
logger.getlogger(login.class.getname()).log(level.severe, null, ex);
} catch (sqlexception ex) {
logger.getlogger(login.class.getname()).log(level.severe, null, ex);
}
}
/**
* @param args the command line arguments
*/
public static void main(string args[]) {
/* set the nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" look and feel setting code (optional) ">
/* if nimbus (introduced in java se 6) is not available, stay with the default look and feel.
* for details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.uimanager.lookandfeelinfo info : javax.swing.uimanager.getinstalledlookandfeels()) {
if ("nimbus".equals(info.getname())) {
javax.swing.uimanager.setlookandfeel(info.getclassname());
break;
}
}
} catch (classnotfoundexception ex) {
java.util.logging.logger.getlogger(login.class.getname()).log(java.util.logging.level.severe, null, ex);
} catch (instantiationexception ex) {
java.util.logging.logger.getlogger(login.class.getname()).log(java.util.logging.level.severe, null, ex);
} catch (illegalaccessexception ex) {
java.util.logging.logger.getlogger(login.class.getname()).log(java.util.logging.level.severe, null, ex);
} catch (javax.swing.unsupportedlookandfeelexception ex) {
java.util.logging.logger.getlogger(login.class.getname()).log(java.util.logging.level.severe, null, ex);
}
//</editor-fold>
/* create and display the form */
java.awt.eventqueue.invokelater(new runnable() {
public void run() {
new login().setvisible(true);
}
});
}
// variables declaration - do not modify
private javax.swing.jbutton jbutton2;
private javax.swing.jbutton jbutton3;
private javax.swing.jlabel jlabel1;
private javax.swing.jlabel jlabel2;
private javax.swing.jpasswordfield jpasswordfield1;
private javax.swing.jtextfield jtextfield2;
// end of variables declaration
}
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package 经典增删查改;
import java.awt.event.keyevent;
import javax.swing.joptionpane;
public class doctorinfogui extends javax.swing.jframe {
public doctorinfogui() {
initcomponents();
string sql="select*from doctor_info";
//doctorinfo看作为一个tablemodel
doctorinfo d=new doctorinfo (sql);
//教你如何添加数据的方法
jtable1.setmodel(d);
system.out.println(" 已经给表添加好了数据！");
}
private void initcomponents() {
jtfseacher = new javax.swing.jtextfield();
jbtseacher = new javax.swing.jbutton();
///////////////////////////////////////////////////////////////////
//alt+enter
jbtseacher.setmnemonic(keyevent.vk_enter);
jscrollpane1 = new javax.swing.jscrollpane();
jscrollpane2 = new javax.swing.jscrollpane();
jtable1 = new javax.swing.jtable();
jlabel1 = new javax.swing.jlabel();
jlabel2 = new javax.swing.jlabel();
jlabel3 = new javax.swing.jlabel();
jlabel4 = new javax.swing.jlabel();
jlabel5 = new javax.swing.jlabel();
jtfno = new javax.swing.jtextfield();
jtfname = new javax.swing.jtextfield();
jtextfieldks = new javax.swing.jtextfield();
jtflevel = new javax.swing.jtextfield();
jtfghf = new javax.swing.jtextfield();
jbtadd = new javax.swing.jbutton();
updatajbt = new javax.swing.jbutton();
jbtupdata = new javax.swing.jbutton();
jlabel6 = new javax.swing.jlabel();
deletejbt = new javax.swing.jbutton();
jbtclear = new javax.swing.jbutton();
jlabel7 = new javax.swing.jlabel();
setdefaultcloseoperation(javax.swing.windowconstants.exit_on_close);
jbtseacher.settext("查询");
jtfseacher.settooltiptext("按姓名查询");
jbtseacher.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
jbtseacheractionperformed(evt);
}
});
jtable1.addmouselistener(new java.awt.event.mouseadapter() {
public void mouseclicked(java.awt.event.mouseevent evt) {
jtable1mouseclicked(evt);
}
});
jscrollpane2.setviewportview(jtable1);
jscrollpane1.setviewportview(jscrollpane2);
jlabel1.settext("编号");
jlabel2.settext("姓名");
jlabel3.settext("科室");
jlabel4.settext("级别");
jlabel5.settext("挂号费");
jtfno.settext(" ");
jtfname.settext(" ");
jtflevel.settext(" ");
jtfghf.settext(" ");
jbtadd.settext("添加");
jbtadd.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
jbtaddactionperformed(evt);
}
});
updatajbt.settext("修改");
updatajbt.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
updatajbtactionperformed(evt);
}
});
jlabel6.settext("姓名");
deletejbt.settext("删除");
deletejbt.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
deletejbtactionperformed(evt);
}
});
jbtclear.settext("清空");
jbtclear.addactionlistener(new java.awt.event.actionlistener() {
public void actionperformed(java.awt.event.actionevent evt) {
jbtclearactionperformed(evt);
}
});
jlabel7.settext("科室");
jtextfieldks.settext(" ");
javax.swing.grouplayout layout = new javax.swing.grouplayout(getcontentpane());
getcontentpane().setlayout(layout);
layout.sethorizontalgroup(
layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addcontainergap()
.addcomponent(jscrollpane1, javax.swing.grouplayout.default_size, 515, short.max_value))
.addgroup(layout.createsequentialgroup()
.addgap(81, 81, 81)
.addcomponent(jtfseacher, javax.swing.grouplayout.preferred_size, 78, javax.swing.grouplayout.preferred_size)
.addgap(39, 39, 39)
.addcomponent(jbtseacher)
.addgap(32, 32, 32)
.addcomponent(deletejbt))
.addgroup(layout.createsequentialgroup()
.addcontainergap()
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addcomponent(jlabel1)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addcomponent(jtfno, javax.swing.grouplayout.preferred_size, 76, javax.swing.grouplayout.preferred_size))
.addgroup(layout.createsequentialgroup()
.addcomponent(jlabel6)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addcomponent(jtfname, javax.swing.grouplayout.preferred_size, 76, javax.swing.grouplayout.preferred_size)))
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgap(32, 32, 32)
.addcomponent(jlabel4)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addcomponent(jtflevel, javax.swing.grouplayout.preferred_size, 74, javax.swing.grouplayout.preferred_size))
.addgroup(layout.createsequentialgroup()
.addgap(18, 18, 18)
.addcomponent(jlabel5)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addcomponent(jtfghf, javax.swing.grouplayout.preferred_size, 74, javax.swing.grouplayout.preferred_size)))
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgap(55, 55, 55)
.addcomponent(jbtupdata))
.addgroup(layout.createsequentialgroup()
.addgap(30, 30, 30)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addcomponent(jlabel7)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addcomponent(jtextfieldks, javax.swing.grouplayout.preferred_size, 65, javax.swing.grouplayout.preferred_size))
.addgroup(layout.createsequentialgroup()
.addcomponent(jbtadd)
.addgap(10, 10, 10)
.addcomponent(jbtclear)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.unrelated)
.addcomponent(updatajbt)))))))
.addcontainergap())
.addgroup(layout.createsequentialgroup()
.addcontainergap()
.addcomponent(jlabel3)
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addcomponent(jlabel2))));
layout.setverticalgroup(
layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgap(17, 17, 17)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jtfseacher, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
.addcomponent(jbtseacher)
.addcomponent(deletejbt))
.addpreferredgap(javax.swing.layoutstyle.componentplacement.unrelated)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addcomponent(jscrollpane1, javax.swing.grouplayout.preferred_size, 172, javax.swing.grouplayout.preferred_size)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jlabel3, javax.swing.grouplayout.preferred_size, 37, javax.swing.grouplayout.preferred_size)
.addcomponent(jbtupdata)))
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
.addgroup(layout.createsequentialgroup()
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jlabel1)
.addcomponent(jlabel4)
.addcomponent(jtfno, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
.addcomponent(jtflevel, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
.addcomponent(jlabel7)
.addcomponent(jtextfieldks, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size))
.addgap(8, 8, 8)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jlabel5)
.addcomponent(jtfname, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
.addcomponent(jtfghf, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
.addcomponent(jlabel6))
.addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
.addcomponent(jlabel2, javax.swing.grouplayout.preferred_size, 0, javax.swing.grouplayout.preferred_size)
.addcontainergap(39, short.max_value))
.addgroup(javax.swing.grouplayout.alignment.trailing, layout.createsequentialgroup()
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.trailing)
.addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
.addcomponent(jbtclear)
.addcomponent(updatajbt))
.addcomponent(jbtadd, javax.swing.grouplayout.alignment.leading))
.addgap(43, 43, 43))))
);
pack();
}// </editor-fold>
private void jbtseacheractionperformed(java.awt.event.actionevent evt) {
string text=jtfseacher.gettext().trim();
//重新执行查询sql语句，在读取数据，然后再添加到table表格中，实现刷新表格的作用
string sql="select*from doctor_info where name='"+text+"'";
doctorinfo d=new doctorinfo (sql);
jtable1.setmodel(d);
jtfseacher.settext("");
}
private void jbtaddactionperformed(java.awt.event.actionevent evt) {
string no=jtfno.gettext().trim();
string name=jtfname.gettext().trim();
string ks= jtextfieldks.gettext().trim();
string level=jtflevel.gettext().trim();
string ghf=jtfghf.gettext().trim();
//执行添加sql语句，再读取数据
string sql = "insert into doctor_info(no,name ,departments,level,ghf) values('" + no + "','" + name+ "', '" + ks+ "', '" + level + "','"+ghf+"')";
doctorinfo df=new doctorinfo ();
df.add(sql);
//
//重新读取数据
string sql1="select*from doctor_info";
doctorinfo d=new doctorinfo (sql1);
jtable1.setmodel(d);
jtfno.settext("");
jtfname.settext("");
jtflevel.settext("");
jtfghf.settext("");
jtextfieldks.settext("");
}
private void updatajbtactionperformed(java.awt.event.actionevent evt) {
//获取当前位置
int index = jtable1.getselectedrow();
//获取莫一行的第0列的值,注意获取的行数需要减少一个
string id = jtable1.getvalueat(index-1, 0).tostring() ;
string no=jtfno.gettext().trim();
string name=jtfname.gettext().trim();
string ks= jtextfieldks.gettext().trim();
string level=jtflevel.gettext().trim();
string ghf=jtfghf.gettext().trim();
jtfno.settext("");
jtfname.settext("");
jtflevel.settext("");
jtfghf.settext("");
jtextfieldks.settext("");
string sql = "update doctor_info set name ='" + name + "',departments='" + ks + "',level='" + level+ "',ghf='" + ghf + "' where no='" + no+ "'";
system.out.println(id);
system.out.println(no);
doctorinfo df=new doctorinfo ();
df.update(sql);
//重新读取数据
string sql1="select*from doctor_info";
doctorinfo d=new doctorinfo (sql1);
jtable1.setmodel(d);
}
private void jtable1mouseclicked(java.awt.event.mouseevent evt) {
//获取某一行的具体值，并把它显示在文本框中
string no = jtable1.getvalueat(jtable1.getselectedrow(), 0).tostring();
string name = jtable1.getvalueat(jtable1.getselectedrow(), 1).tostring();
string ks = jtable1.getvalueat(jtable1.getselectedrow(), 2).tostring();
string level = jtable1.getvalueat(jtable1.getselectedrow(), 3).tostring();
string ghf= jtable1.getvalueat(jtable1.getselectedrow(), 4).tostring();
//把点击的内容显示在文本框中
jtfno.settext(no);
jtfname.settext(name);
jtextfieldks.settext(ks);
jtflevel.settext(level);
jtfghf.settext(ghf);
}
private void deletejbtactionperformed(java.awt.event.actionevent evt) {
//设置选择对话框的选项
string[] options = {"是", "否"};
int answ = joptionpane.showoptiondialog(null, "是否确认删除??", "提示", joptionpane.yes_no_cancel_option, joptionpane.question_message, null, options, options[1]);
if (answ == 0) {
int index = jtable1.getselectedrow();
string id = jtable1.getvalueat(index, 0).tostring();
string sql="delete from doctor_info where no='"+id+"'";
// 删除一条记录
doctorinfo df=new doctorinfo ();
df.delete(sql);
system.out.println("删除成功！！！");
//重新读取数据
string sql1="select*from doctor_info";
doctorinfo d=new doctorinfo (sql1);
jtable1.setmodel(d);
jtfno.settext("");
jtfname.settext("");
jtflevel.settext("");
jtfghf.settext("");
jtextfieldks.settext("");
} else
{
joptionpane.showmessagedialog(null, "无法删除！！！");
}
}
private void jbtclearactionperformed(java.awt.event.actionevent evt) {
jtfno.settext("");
jtfname.settext("");
jtflevel.settext("");
jtfghf.settext("");
jtextfieldks.settext("");
}
public static void main(string args[]) {
/* set the nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" look and feel setting code (optional) ">
/* if nimbus (introduced in java se 6) is not available, stay with the default look and feel.
* for details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.uimanager.lookandfeelinfo info : javax.swing.uimanager.getinstalledlookandfeels()) {
if ("nimbus".equals(info.getname())) {
javax.swing.uimanager.setlookandfeel(info.getclassname());
break;
}
}
} catch (classnotfoundexception ex) {
java.util.logging.logger.getlogger(doctorinfogui.class.getname()).log(java.util.logging.level.severe, null, ex);
} catch (instantiationexception ex) {
java.util.logging.logger.getlogger(doctorinfogui.class.getname()).log(java.util.logging.level.severe, null, ex);
} catch (illegalaccessexception ex) {
java.util.logging.logger.getlogger(doctorinfogui.class.getname()).log(java.util.logging.level.severe, null, ex);
} catch (javax.swing.unsupportedlookandfeelexception ex) {
java.util.logging.logger.getlogger(doctorinfogui.class.getname()).log(java.util.logging.level.severe, null, ex);
}
//</editor-fold>
/* create and display the form */
java.awt.eventqueue.invokelater(new runnable() {
public void run() {
new doctorinfogui().setvisible(true);
}
});
}
// variables declaration - do not modify
private javax.swing.jbutton updatajbt;
private javax.swing.jbutton deletejbt;
private javax.swing.jlabel jlabel1;
private javax.swing.jlabel jlabel2;
private javax.swing.jlabel jlabel3;
private javax.swing.jlabel jlabel4;
private javax.swing.jlabel jlabel5;
private javax.swing.jlabel jlabel6;
private javax.swing.jlabel jlabel7;
private javax.swing.jscrollpane jscrollpane1;
private javax.swing.jscrollpane jscrollpane2;
private javax.swing.jtable jtable1;
private javax.swing.jbutton jbtadd;
private javax.swing.jbutton jbtclear;
private javax.swing.jbutton jbtupdata;
private javax.swing.jbutton jbtseacher;
private javax.swing.jtextfield jtfghf;
private javax.swing.jtextfield jtextfieldks;
private javax.swing.jtextfield jtflevel;
private javax.swing.jtextfield jtfname;
private javax.swing.jtextfield jtfno;
private javax.swing.jtextfield jtfseacher;
// end of variables declaration
}
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package 经典增删查改;
import java.io.serializable;
import java.sql.connection;
import java.sql.preparedstatement;
import java.sql.resultset;
import java.sql.sqlexception;
import java.util.vector;
import java.util.logging.level;
import java.util.logging.logger;
import javax.swing.table.abstracttablemodel;
public class doctorinfo extends abstracttablemodel {
connection con=null;
preparedstatement ps=null;
resultset rs=null;
vector<serializable> rowdata,columnname;
public doctorinfo(string sql){
init( sql) ;
}
public doctorinfo(){
}
public void init(string sql){
//columnname保存表头信息
columnname=new vector<serializable>();
columnname.add("编号");
columnname.add("姓名");
columnname.add("科室");
columnname.add("级别");
columnname.add("挂号费");
//rowdata向量保存每一行的信息
rowdata=new vector<serializable>();
try {
con = dbconnection.getconnection();
ps=(preparedstatement) con.preparestatement( sql);
rs=ps.executequery();
while(rs.next()){
vector bang=new vector();
bang.add(rs.getstring(1) );
bang.add(rs.getstring(2) );
bang.add(rs.getstring(3) );
bang.add(rs.getstring(4) );
bang.add(rs.getstring(5) );
//将读取的每一行数据添加到bang中，然后再把bang添加到rowdata向量中
rowdata.add(bang);
}
} catch (classnotfoundexception e) {
// todo auto-generated catch block
e.printstacktrace();
} catch (sqlexception e) {
// todo auto-generated catch block
e.printstacktrace();
}finally {
if(con!=null&&ps!=null&rs!=null){
try {
con.close();
ps.close();
rs.close();
} catch (sqlexception e) {
e.printstacktrace();
}
}
}
}
public void chushihua(string sql){
connection con=null;
preparedstatement ps=null;
int rs;
try {
con = dbconnection.getconnection();
ps=(preparedstatement) con.preparestatement( sql);
rs=ps.executeupdate();
} catch (classnotfoundexception e) {
// todo auto-generated catch block
e.printstacktrace();
} catch (sqlexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
public void delete(string sql){
chushihua( sql);
}
public void add(string sql){
chushihua( sql);
}
public void update(string sql){
chushihua( sql);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@override
public int getrowcount() {
return this.rowdata.size();
}
@override
public int getcolumncount() {
return this.columnname.size();
}
@override
public object getvalueat(int row, int column) {
return ((vector ) this.rowdata.get(row)).get(column);
}
public string getcolumnname(int column) {
return (string) this.columnname.get(column);
}
}
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package 经典增删查改;
import com.mysql.jdbc.connection;
import java.sql.drivermanager;
import java.sql.sqlexception;
import java.util.logging.level;
import java.util.logging.logger;
class dbconnection{
public static connection getconnection() throws classnotfoundexception {
// jdbc 驱动名及数据库 url
string jdbc_driver = "com.mysql.jdbc.driver";
string url = "jdbc:mysql://localhost:3306/hospital";
string user = "root";
string password = "root";
connection conn = null;
//与数据库建立连接
class.forname(jdbc_driver);
try {
conn= (connection) drivermanager.getconnection(url,user,password);
system.out.println("已经连接数据库");
} catch (sqlexception ex) {
logger.getlogger(dbconnection.class.getname()).log(level.severe, null, ex);
}
return conn;
}
}
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网上难找一个带界面的管理系统源码，我把这简单管理系统分享出去，希望能够帮助到那些需要帮助的人。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_36279318/article/details/77428339