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show java吧_求助【java吧】_百度贴吧该楼层疑似违规已被系统折叠隐藏此楼查看此楼packageworker2;importjava.io.BufferedReader;importjava.io.BufferedWriter;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.FileOutputStream;im…

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该楼层疑似违规已被系统折叠 隐藏此楼查看此楼

package worker2;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.io.OutputStreamWriter;

import java.io.UnsupportedEncodingException;

import java.text.Collator;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.Locale;

import javax.swing.JOptionPane;

import worker1.Worker;

public class Workertwo {

ArrayList arlist=new ArrayList();

public void getFileData(String filepath) {

FileInputStream fis;

try {

fis=new FileInputStream(filepath);

InputStreamReader isr=new InputStreamReader(fis,”UTF-8″);

BufferedReader br=new BufferedReader(isr);//缓冲区读取

String line=null;

while((line=br.readLine())!=null) {

String[] flds=line.split(“\\ +”);

Worker wr=new Worker(flds[0],flds[1],flds[2],flds[3]);

if(flds[0].contains(“学号”)) {

}else {

arlist.add(wr);

}

}

br.close();

} catch (FileNotFoundException | UnsupportedEncodingException e) {

// TODO Auto-generated catch block

JOptionPane.showMessageDialog(null, “File not found!/Charset not supported!”);

//e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

JOptionPane.showMessageDialog(null, “IO Error!”);

//e.printStackTrace();

}

}

public ArrayList AscNumber(ArrayList arlist){

Collections.sort(arlist, new Comparator() {

public int compare(Worker o1, Worker o2) {

return Collator.getInstance(Locale.CHINESE).compare(o1.getNumber(),o2.getNumber());

}

});

return arlist;

}

public ArrayList showAll(){

return arlist;

}

public ArrayList showByNumber(String input){

ArrayList anslist=new ArrayList();

for(Worker w:arlist) {

if(w.getNumber().contains(input)) {

anslist.add(w);

}

}

return anslist;

}

public ArrayList showByName(String input){

ArrayList anslist=new ArrayList();

for(Worker w:arlist) {

if(w.getName().contains(input)) {

anslist.add(w);

}

}

return anslist;

}

public void setFileData(String filepath,ArrayList relist) {

FileOutputStream fos;

try {

fos = new FileOutputStream(filepath);

OutputStreamWriter osw=new OutputStreamWriter(fos,”UTF-8″);

BufferedWriter bw=new BufferedWriter(osw);

bw.write(“学号 姓名 班级 java成绩”);

bw.newLine();

for(Worker w:relist) {

bw.write(w.toString());

bw.newLine();

}

bw.close();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

JOptionPane.showMessageDialog(null, “File not found!”);

//e.printStackTrace();

} catch (UnsupportedEncodingException e) {

// TODO Auto-generated catch block

JOptionPane.showMessageDialog(null, “Charset not supported!”);

//e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

JOptionPane.showMessageDialog(null, “IO Error!”);

//e.printStackTrace();

}

}

//异常处理

public void WorkerthreeFileData(String filepath,ArrayList relist) {

//sserialization 序列化

try {

ObjectOutputStream ous=new ObjectOutputStream(new FileOutputStream(filepath));

ous.writeObject(relist);

ous.close();

ous.writeObject(relist.size());

for(Worker w:relist) {

ous.writeObject(w.toString());

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

//序列化查询

@SuppressWarnings(“unchecked”)

public void getFileDataFromSeria(String filepath) {

ArrayList anslist=new ArrayList();

try {

ObjectInputStream ois=new ObjectInputStream(new FileInputStream(filepath));

anslist=(ArrayList)ois.readObject();

for(Worker i:anslist) {

System.out.println(i.toString());

}

//int size=(int) ois.readObject();

String w=(String) ois.readObject();

//for(int i=0;i

//String w=(String) ois.readObject();

//System.out.println(w);

//}

} 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();

}

}

}

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