java 将数据写进文件

/*每次只写入一行数据 只需要调用特定的方法即可。*/

package com.second.File;

import java.io.*;

/** * Created by hasee on 2016/11/15. */public class WriteFile {    private BufferedWriter bw = null;

public int openWrite(String address, String strCodeFormat) {        if (strCodeFormat == null || address == null || address.length() == 0 || strCodeFormat.length() == 0) {            //错误代码 101 输入的信息为空            return 101;        }        try {            bw = new BufferedWriter(                    new OutputStreamWriter(                            new FileOutputStream(address), strCodeFormat));            return 1;        } catch (FileNotFoundException e) {            e.printStackTrace();            return 204;        } catch (UnsupportedEncodingException e) {            e.printStackTrace();            return 201;        }    }

public int save(String strLine) {        if (bw == null) {            return 301;        }        try {            bw.write(strLine);            return 1;        } catch (IOException e) {            e.printStackTrace();        }        return 0;    }

public int closeWrite() {        if (bw == null) {            return 301;        }        try {            bw.close();            return 1;        } catch (IOException e) {            e.printStackTrace();            return 301;        }    }}