=============Student.java==========8T
import java.sql.*;D#9/
public class Student implements java.io.Serializable{{`:S5
private String id;):
private String name;Ki\
private Date birthday;zmmQG
©达内科技论坛 -- 达内科技论坛　　.M-KA@
public Student(){}1Hy
public Student(String id, String name, Date birthday){FG
this.id = id;gbZ
this.name = name;=
this.birthday = birthday;po|a8M
}©达内科技论坛 -- 达内科技论坛　　8/
©达内科技论坛 -- 达内科技论坛　　mWT
public String getId() { return id; }+3[Iu
public void setId(String id) { this.id = id; }o
©达内科技论坛 -- 达内科技论坛　　]r
public String getName() { return name; }U b
public void setName(String name) { this.name = name; }"
©达内科技论坛 -- 达内科技论坛　　3^N:
public Date getBirthday() { return birthday; }EJMQ:o
public void setBirthday(Date birthday) { this.birthday = birthday; }#Acqp
}©达内科技论坛 -- 达内科技论坛　　*cp(F
©达内科技论坛 -- 达内科技论坛　　M#S4x!
=================Course.java======================s
public class Course implements java.io.Serializable{|33[(
private String id;a
private String name;=cd4
private String description;j
©达内科技论坛 -- 达内科技论坛　　,
public Course() {}M{bCxI
public Course(String id, String name, String description){z
this.id = id;GArXC
this.name = name;W|/
this.description = description;C$Z5`
}©达内科技论坛 -- 达内科技论坛　　;U
©达内科技论坛 -- 达内科技论坛　　=
public String getId() { return id; }~}
public void setId(String id) { this.id = id; }Om
©达内科技论坛 -- 达内科技论坛　　:Kwa
public String getName() { return name; }bx)J$
public void setName(String name ) { this.name = name; }'
©达内科技论坛 -- 达内科技论坛　　s<
public String getDescription() { return description; }@S&
public void setDescription(String description) { this.description = description; }4
}©达内科技论坛 -- 达内科技论坛　　3M$B
©达内科技论坛 -- 达内科技论坛　　)$
==============SMdao.java==================&
import java.sql.*;_R7
public interface SMdao {PC
public Student createStudent(String id, String name, Date birthday);Ipm?-3
publc Course createCourse(String id, String name, String description);*7v
©达内科技论坛 -- 达内科技论坛　　XOBmW
public Student findStudent(String id);Vw_Ei
public Course findCourse(String id);nE
©达内科技论坛 -- 达内科技论坛　　U~%
public void clean();]L\Ixu
}©达内科技论坛 -- 达内科技论坛　　?"_&!
©达内科技论坛 -- 达内科技论坛　　>L?O*
==============FileSMdaoImpl.java==============A+
import java.util.Properties;@
import java.sql.*;r^|
import java.io.*;[gN
©达内科技论坛 -- 达内科技论坛　　.W6DA
public class FileSMdaoImpl implements SMdao {JM?
private Properties pro;s#<
private final static String SFILE_URL = "student.file.url";YT-_xq
private final static String CFILE_URL = "course.file.url";%g_&
public FileSMdaoImpl(Properties pro){;rAs
this.pro = pro;OF}BQ
}©达内科技论坛 -- 达内科技论坛　　41<K+
©达内科技论坛 -- 达内科技论坛　　&
public Student createStudent(String id, String name, Date birthday) {P^$u
FileOutputStream fos = null;]
ObjectOutputStream oos = null;&-M@
Student stu = null;Y}
©达内科技论坛 -- 达内科技论坛　　1B|o3R
try {©达内科技论坛 -- 达内科技论坛　　*frlF
fos = new FileOutputStream(pro.getProperty(FILE_URL), true);HPW1{E
oos = new ObjectOutputStream(fos);24o\k
stu = new Student(id, name, birthday);Hwq
oos.writeObject(stu);9%
} catch(Exception e) { stu = null; }qU
finally{[
try { if(oos != null) oos.close(); } catch(Exception e){}Gm
try { if(fos != null) oos.close(); } catch(Exception e) {}u79
}©达内科技论坛 -- 达内科技论坛　　<eL
©达内科技论坛 -- 达内科技论坛　　hZSh5L
return stu;{^
}©达内科技论坛 -- 达内科技论坛　　q|%p
©达内科技论坛 -- 达内科技论坛　　_`lP
public Course createCourse(String id, String name, String description){=
return null;a
}©达内科技论坛 -- 达内科技论坛　　K;-
©达内科技论坛 -- 达内科技论坛　　_!&#.
public Student findStudent(String id) {Y
return null;#2Q
}©达内科技论坛 -- 达内科技论坛　　iN
©达内科技论坛 -- 达内科技论坛　　Y|!'j
public Course findCourse(String id) {A
return null;#
}©达内科技论坛 -- 达内科技论坛　　43+F
©达内科技论坛 -- 达内科技论坛　　=9rxl
public void clean() {}s0}
}©达内科技论坛 -- 达内科技论坛　　b2F,
==============DBSMdaoImpl.java==============^
import java.sql.*;I.%m_
import java.util.Properties;Zxv9_
©达内科技论坛 -- 达内科技论坛　　+zV
public class DBSMdaoImpl implements SMDao {B
private Connection con;$o
private final static String DBDRV = "db.driver";8LeZ>
private final static String DBURL = "db.url";e\l
private final static String DBUSER = "db.user";GS@
private final static String DBPASSWD = "db.password";"&Vw[l
©达内科技论坛 -- 达内科技论坛　　j
public DBSMdaoImpl(Properties pro) {\xoZ
try {©达内科技论坛 -- 达内科技论坛　　_QxNo
Class.forName(pro.getProperty(DBDRV)); :9$_`B
String user = pro.getProperty(DBUSER);.k-;l
String passwd = pro.getProperty(DBPASSWD);ctK
if(user != null)%Qf("d
con = DriverManager.getConnection(pro.getProperty(DBURL),k(
user, passwd);bZ9;GO
else©达内科技论坛 -- 达内科技论坛　　;
con = DriverManager.getConnection(pro.getProperty(DBURL));<Dl*0
} catch(Exception e){}+VJ%
}©达内科技论坛 -- 达内科技论坛　　}i#
©达内科技论坛 -- 达内科技论坛　　NGF
public Student createStudent(String id, String name, Date birtyday) {?G
if(con == null) return null;F
Student stu = null;=~uFIE
PreparedStatement stm = null;j;oyv
©达内科技论坛 -- 达内科技论坛　　pCsMY)
try {©达内科技论坛 -- 达内科技论坛　　;_Wh
stm = con.prepareStatement("insert into student(id, name, birthday) " +uDiP
                                                            "values(?, ?, ?)");p,)aqU
stm.setString(1, id);bs
stm.setString(2, name);!r
stm.setDate(3, birthday);Ip<|2E
©达内科技论坛 -- 达内科技论坛　　ANfDb(
if(stm.executeUpdate() > 0)bp
stu = new Student(id, name, birthday);8/C8
}catch(Exception e){}H7qE9
finally{I
try {if(stm != null) stm.close();}^KpO
catch(Exception e) {}7eeQmE
}©达内科技论坛 -- 达内科技论坛　　0-hz
©达内科技论坛 -- 达内科技论坛　　:.~2Ru
return stu;8'S7
}©达内科技论坛 -- 达内科技论坛　　DeKI+Y
©达内科技论坛 -- 达内科技论坛　　7{Qe%x
public Course createCourse(String id, String name, String desc) { return null; }=
public Student findStudent(String id) { return null; }\qM}
public Course findCourse(String id) { return null; }}4
©达内科技论坛 -- 达内科技论坛　　:KZ>8
public void clean() {Q
try {©达内科技论坛 -- 达内科技论坛　　:$0HI
if(con != null) con.close();$;9
}catch(Exception e) {}8+%
}©达内科技论坛 -- 达内科技论坛　　fS?7V}
}©达内科技论坛 -- 达内科技论坛　　{V
©达内科技论坛 -- 达内科技论坛　　{
===============SMdaoFactory.java===============^
import java.util.*;WJ"^W
©达内科技论坛 -- 达内科技论坛　　^
public class SMdaoFactory {n;6Ych
Properties pro;FK8fdf
public static final String TYPE_FILE = "file";T8Q7
public static final String TYPE_DB = "database";(@o fk
private String type;d#QN
      private static SMdaoFactory factory；7XQn
    static{  factory = new SMdaoFactory();}9.
©达内科技论坛 -- 达内科技论坛　　V=iB
private SMdaoFactory() {m9
©达内科技论坛 -- 达内科技论坛　　-M8
}©达内科技论坛 -- 达内科技论坛　　'
©达内科技论坛 -- 达内科技论坛　　BaMO
public static SMdaoFactory newInstance() { return factory; }fcgM0e
©达内科技论坛 -- 达内科技论坛　　`A~<\T
public void setType(String type) { this.type = type; }aRl
©达内科技论坛 -- 达内科技论坛　　uQc~
public void setProperties(Properties pro) { this.pro = pro; }c<
©达内科技论坛 -- 达内科技论坛　　<5C36*
public SMdao createSMdao() {(?1
if(type.equals(TYPE_FILE))e(Z
return new FileSMdaoImpl(pro);pX-#
else©达内科技论坛 -- 达内科技论坛　　WmH*
return new DBSMdaoImpl(pro);?l1wY
}©达内科技论坛 -- 达内科技论坛　　-HeC3
}©达内科技论坛 -- 达内科技论坛　　'&'
©达内科技论坛 -- 达内科技论坛　　M$_~K
©达内科技论坛 -- 达内科技论坛　　T?
=================Main.java=========================================8st
import java.io.*;hF
import java.util.*;K[.N
import java.sql.*;(Y
public class Main{{bh
public static void main(String args[]){$F/
Properties pro = new Properites();"2|\[
try {©达内科技论坛 -- 达内科技论坛　　>)h
pro.load(Main.class.getResourceAsStream("conf.properties");2
}catch(Exception e) { VLd
e.printStackTrace();Li@p#
System.exit(1); mul{6
}©达内科技论坛 -- 达内科技论坛　　Q,?`
©达内科技论坛 -- 达内科技论坛　　o)
SMdaoFactory factory = SMdaoFactory.newInstance();l7vu[k
factory.setType(SMdaoFactory.TYPE_DB);k#D
factory.setProperties(pro);T`N6l
SMdao dao = factory.createSMdao();=j6tL{
GregorainCalendar calendar = new GregorainCalendar();:/)6FS
calendar.set(Calendar.YEAR, 1975);F|(X
calendar.set(Calendar.MONTH, 2);}
calendar.set(Calendar.DAY_OF_MONTH, 21);2c$N{
java.sql.Date birthday = new java.sql.Date(calendar.getTimeInMills());3
Student stu = dao.createStudent("12345", "George", birthday);A&,w'
}©达内科技论坛 -- 达内科技论坛　　_0ALDV
}©达内科技论坛 -- 达内科技论坛　　MLVt
==============conf.properties===================EG3Y_S
db.driver=COM.pointbase.jdbc.jdbcUniversalDriver^:y B
db.url=jdbc:pointbase:server://george/samplez48tTi
db.user=pbpulic@`
db.password=pbpublic=1V4u6
©达内科技论坛 -- 达内科技论坛　　\*Yp&
student.file.url=student:dc%
course.file.url=course"<EUO