save.java

小型的课程设计

/*
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/**
 *
 * @author Administrator
 */
import java.io.*;

public class save {//文件加密存储

    public void cunchu(String shurulujing, String mima, String shuchulujing) {
        try {
            jiamisf jm = new jiamisf();
            FileReader in = new FileReader(shurulujing);//建立文件输入流

            BufferedReader bin = new BufferedReader(in);//建立缓冲输入流

            FileWriter out = new FileWriter(shuchulujing, true);//建立文件输出流

            String str = null;
            char[] mmyuan = new char[mima.length()];//创建字符数组
            char[] mmjg = new char[mima.length()];//创建字符数组
            mima.getChars(0, mima.length(), mmyuan, 0);//输入的密码转换成字符数组
            mmjg = jm.jiamizhuanhua(mmyuan);//给输入的密码进行加密
            String mmjieguo = String.valueOf(mmjg);//加完密的密码转化成字符串
            out.write(mmjieguo+"\r\n");//加完密的密码进行保存文件
            while ((str = bin.readLine()) != null) {
                //将缓冲区内容通过循环方式逐行赋值给字符串str
               System.out.println(str);//测试

                char[] yuan = new char[str.length()];//创建字符数组
                char[] jg = new char[str.length()];//创建字符数组
                str.getChars(0, str.length(), yuan, 0);//读取内容转换成字符数组
                jg = jm.jiamizhuanhua(yuan);//读取内容进行加密
                String jieguo = String.valueOf(jg);//加密后的读取内容转化成字符串
                out.write(jieguo+"\r\n");//加密后的读取内容保存到文件

            }
            in.close();//关闭
            out.close();//关闭
        } catch (FileNotFoundException fe) {
        } catch (IOException ioe) {
        }
    }
}