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; } } |
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
