1. 객체단위로 입출력을 알아보자
1-1 ObjectInputStream/ ObjectOutputStream
package com.song.practice.io.filterStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import com.song.practice.io.filterStream.vo.MemberVO;
public class Application4 {
public static void main(String[] args) {
/* 객체 단위로 입출력을 하기로 위한 ObjectInputStream/ ObjectOutputStream을 살펴보자 */
MemberVO[] outputMembers = {
new MemberVO("user01", "pass01", "홍길동", "hong777@hong.com", 25, "남", 2506.5),
new MemberVO("user02", "pass02", "아이유", "iu@edam.com", 29, "여" ,10000),
new MemberVO("user03", "pass03", "이유나", "yuna@braveGirs.com", 29, "여" , 9999)
};
ObjectOutputStream objOut = null;
try {
objOut = new ObjectOutputStream(new FileOutputStream("src/com/song/practice/io/filterStream/testObject.txt"));
for(int i = 0; i < outputMembers.length; i++) {
objOut.writeObject(outputMembers[i]);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if(objOut != null) {
try {
objOut.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
MemberVO[] inputMembers = new MemberVO[3];
ObjectInputStream objIn = null;
try {
objIn = new ObjectInputStream
(new FileInputStream("src/com/song/practice/io/filterStream/testObject.txt"));
for(int i = 0; i < inputMembers.length; i++) {
System.out.println(inputMembers[i] = (MemberVO) objIn.readObject());
}
for(MemberVO m : inputMembers) {
System.out.println(m);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (objIn != null) {
try {
objIn.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
Java
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