锘??xml version="1.0" encoding="utf-8" standalone="yes"?>
1)銆?鍦ㄤ富紼嬪簭涓氨璋冪敤涓涓狹enu鏂規硶;
public class Main {
public static void main(String[] args){
new Menu();
}
}
2錛夈佸湪vo鍖呴噷鍖呰涓涓狿erson綾伙紝騫跺疄鐜癝erializable鎺ュ彛錛?nbsp;涓斿畾涔夊洓涓睘鎬э細濮撳悕錛屽鍙鳳紝騫撮緞錛屾垚緇╋紱
3錛夈佸湪op鍖呴噷寤虹珛涓や釜綾伙紝鍒嗗埆涓?nbsp;FileOperate鍜?span style="color: #ff0000">InputData錛?/span>鍓嶈呬富瑕佸疄鐜頒簡鏂囦歡鐨勮銆佸啓鍗充繚瀛樺拰杈撳嚭錛涘悗鑰呬富瑕佹瀯寤轟簡涓や釜鏂規硶錛屼竴涓槸瀛楃涓茬殑杈撳叆 錛屽彟涓涓槸鏁存暟鐨勮緭鍏ワ紝騫跺垽鏂緭鍏ョ殑鏄惁涓虹湡銆?nbsp;
public class FileOperate {
public static final String FILENAME="d:\\person.ser";
//鎶婂璞′繚瀛樺湪鏂囦歡涔嬩腑
public void save(Object obj){
ObjectOutputStream out = null;
try{
out = new ObjectOutputStream(new FileOutputStream(new File(FILENAME)));
//鍐欏叆瀵硅薄
out.writeObject(obj);
}catch(Exception e){
try{
throw e;
}catch(Exception e1){}
}
finally{
try{
out.close();
}catch(Exception e){}
}
}
//鎶婂璞′粠鏂囦歡涓鍑烘潵
public Object read() throws Exception{
Object obj = null;
ObjectInputStream input = null;
try{
input = new ObjectInputStream(new FileInputStream(new File(FILENAME)));
obj = input.readObject();
}catch(Exception e){
throw e;
}
finally{
try{
input.close();
}catch(Exception e){}
}
return obj;
}
}
public class InputData {
private BufferedReader buf = null;
//灝嗗瓧鑺傜殑杈撳叆嫻侀噺鍙樹負瀛楃嫻侊紝涔嬪悗鏀懼叆緙撳啿涔嬩腑
public InputData(){
buf = new BufferedReader(new InputStreamReader(System.in));
};
public String getString(){
String str = null;
try{
str=buf.readLine();
}catch(IOException e){}
return str;
}
public int getInt(){
int temp=0;
//濡傛灉杈撳叆鐨勪笉鏄暟瀛楋紝鑷沖皯搴旇鏈変竴涓彁紺猴紝鍛婅瘔鐢ㄦ埛杈撳叆閿欎簡
//鍙互浣跨敤姝e垯楠岃瘉
String str = null;
boolean flag = true;
while(flag){
//杈撳叆鏁版嵁
str = this.getString();
if(!(str.matches("\\d+"))){
//濡傛灉杈撳叆鐨勪笉鏄竴涓暟瀛楋紝鍒欏繀欏婚噸鏂拌緭鍏?br />
System.out.print("杈撳叆鐨勫唴瀹瑰繀欏繪槸鏁存暟錛岃浣犻噸鏂拌緭鍏ワ細");
}
else{
//杈撳叆鐨勬槸涓涓紜殑鏁板瓧錛屽垯鍙互榪涜杞崲
temp=Integer.parseInt(str);
//琛ㄧず閫鍑哄驚鐜?br />
flag = false;
}
}
return temp;
}
}
4)銆佸湪Menu綾婚噷寤虹珛鎺у埗鍙扮殑鍒濆淇℃伅錛?/strong>
public class Menu {
InputData input = null ;
public Menu(){
this.input=new InputData();
//寰幆鍑虹幇鑿滃崟
while(true){
this.show();
}
}
//闇瑕佸畾涔夌殑鑿滃崟鍐呭
public void show(){
System.out.println("\t\t 1銆佸鍔犱漢鍛樹俊鎭?);
System.out.println("\t\t 2銆佹祻瑙堜漢鍛樹俊鎭?); ;
System.out.println("\t\t 3銆佷慨鏀逛漢鍛樹俊鎭?);
System.out.println("\t\t 4銆侀鍑虹郴緇?);
System.out.print("\n璇烽夋嫨瑕佷嬌鐢ㄧ殑鎿嶄綔錛?);
int temp = input.getInt();
switch(temp){
case 1:{
new PersonOperate().add();
break;
}
case 2:{
new PersonOperate().show();
break;
}
case 3:{
new PersonOperate().update();
break;
}
case 4:{
System.out.println("閫夋嫨鐨勬槸閫鍑虹郴緇?);
System.out.println("緋葷粺閫鍑?);
System.exit(1);
}
default: {
System.out.println("浣犺緭鍏ョ殑鍐呭涓嶆紜?);
break;
}
}
}
}
5)銆佸湪PersonOperate綾諱腑榪涜鏁版嵁鐨勫叿浣撴搷浣滐紝瀹屾垚鏈緇堢粨鏋滅殑鏄劇ず鍗?span style="color: #ff0000">鏍稿績錛?/strong>
import com.dr.util.FileOperate;
import com.dr.util.InputData;
import com.dr.vo.Person;
public class PersonOperate {
private InputData input =null;
public PersonOperate(){
this.input=new InputData();
}
//瀹屾垚鍏蜂綋鐨凱erson瀵硅薄鎿嶄綔
public void add(){
//瑕佷嬌鐢ㄨ緭鍏ユ暟鎹殑綾?br />
String name = null;
String id = null;
int age = 0;
int score = 0;
System.out.print("杈撳叆濮撳悕涓猴細");
name = this.input.getString();
System.out.print("杈撳叆瀛﹀彿涓猴細");
id = this.input.getString();
System.out.print("杈撳叆騫撮緞涓猴細");
age = this.input.getInt();
System.out.print("杈撳叆鎴愮嘩涓猴細");
score = this.input.getInt();
//鐢熸垚Person瀵硅薄錛屾妸瀵硅薄淇濆瓨鍦ㄦ枃浠朵腑
Person p = new Person(name,id,age,score);
try{
new FileOperate().save(p); //io鎿嶄綔灞?br />
System.out.println("鏁版嵁淇濆瓨鎴愬姛錛?);
}catch(Exception e){
System.out.println("鏁版嵁淇濆瓨澶辮觸錛?);
}
}
public void show(){
//浠庢枃浠朵腑鎶婂唴瀹硅榪涙潵
Person p = null;
try{
p = (Person) new FileOperate().read();
}catch(Exception e){
System.out.println("鍐呭鏄劇ず澶辮觸錛岃紜畾鏁版嵁鏄惁瀛樺湪錛?);
}
if(p!=null){
System.out.println(p);
}
}
public void update(){
//鍏堝皢涔嬪墠鐨勪俊鎭煡鍑烘潵
Person p = null;
try{
p = (Person) new FileOperate().read();
}catch(Exception e){
System.out.println("鍐呭鏄劇ず澶辮觸錛岃紜畾鏁版嵁鏄惁瀛樺湪錛?);
}
if(p!=null){
String name = null;
String id= null;
int age = 0;
int score=0;
System.out.print("璇瘋緭鍏ユ柊鐨勫鍚嶏紙鍘熷鍚嶄負錛?+p.getName()+"錛?);
name = this.input.getString();
System.out.print("璇瘋緭鍏ユ柊鐨勫鍙鳳紙鍘熷鍙蜂負錛?+p.getId()+"錛?);
id = this.input.getString();
System.out.print("璇瘋緭鍏ユ柊鐨勫勾榫勶紙鍘熷勾榫勪負錛?+p.getAge()+"錛?);
age = this.input.getInt();
System.out.print("璇瘋緭鍏ユ柊鐨勬垚緇╋紙鍘熸垚緇╀負錛?+p.getScore()+"錛?);
score = this.input.getInt();
//淇℃伅閲嶆柊璁劇疆
p.setName(name);
p.setId(id);
p.setAge(age);
p.setScore(score);
try{
new FileOperate().save(p);
System.out.println("鏁版嵁鏇存柊鎴愬姛錛?);
}catch(Exception e){
System.out.println("鏁版嵁鏇存柊澶辮觸錛?);
}
}
}
}
6錛夈佺▼搴忔渶鍚庣殑榪愯緇撴灉鍙婃柟寮忥細
鏈鍚庡笇鏈涘ぇ瀹剁粰浜堢偣璇勶紝鎴戝ソ鍋氫慨鏀癸紒璋㈣阿錛?br style="font-family: " />