用IO流实现自动批卷

文件结构

Student类

public class Student {
    private String name;
    private int score;
    public Student(String name, int score) {
        this.name = name;
        this.score = score;
    }

    public String getName() {
        return name;
    }

    public int getScore() {
        return score;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setScore(int score) {
        this.score = score;
    }

    @Override
    public String toString() {
        return  name + "    " + score ;
    }
}

Judge类

import java.io.*;

public class Judge {
    // 读文件
    public String[] readerFile(String uri) {
        BufferedReader br = null;
        String line ;
        StringBuilder tmpStr = new StringBuilder();
        String []arr = null;
        try{
           br = new BufferedReader(new FileReader(uri));
           while((line = br.readLine()) != null){
               tmpStr.append(line).append(",");
           }
           arr = tmpStr.toString().split(",");
        } catch (Exception e) {
            e.printStackTrace();
        } finally{
            try{
                br.close();
            }catch (IOException e){
                e.printStackTrace();
            }

        }
        return arr;
    }
    public void writeFile(String[] fileList,String uri){
        String[] result = readerFile(uri);
        int len = result.length;
        for(int i = 0;i < fileList.length;i++){
            int cnt = 0;
            String[] answer = readerFile("自动批卷/第一册/"+fileList[i]);
            for(int j = 0;j < len;j++){
                if(result[j].equalsIgnoreCase(answer[j])) {
                    cnt++;
                }
            }
            BufferedWriter bw = null;
            try{
                FileWriter fw = new FileWriter("自动批卷/第一册考试成绩.txt",true);
                bw = new BufferedWriter(fw);
                Student s =new Student(fileList[i].substring(0,fileList[i].lastIndexOf(".")),cnt*(100/len));
                bw.write(String.valueOf(s));
                bw.newLine();
                bw.flush();
            }catch (Exception e){
                e.printStackTrace();
            }finally {
                try{
                    bw.close();
                }catch (IOException e){
                    e.printStackTrace();
                }
            }
        }
    }
    public static void main(String[] args) {
        File file = new File("自动批卷/第一册");
        String[] fileList = file.list();
        Judge judge = new Judge();
       judge.writeFile(fileList,"自动批卷/标准答案.txt");

    }
}

运行结果