java写csv

　　直接gbk, 

/**
 * 写入文件,末尾自动添加\r\n
 * @param path
 * @param strs
 */
public static void writeLines(String path, List<String> strs, boolean is_append, String encode)
{
    try
    {
        File file = new File(path);
        if(!file.exists())
            file.createNewFile();
        FileOutputStream out = new FileOutputStream(file, is_append); //true表示追加
        StringBuffer sb = new StringBuffer();
        for (String str : strs) {
            sb.append(str + "\r\n");
        }
        out.write(sb.toString().getBytes(encode));//
        out.close();
    }
    catch(IOException ex)
    {
        System.out.println(ex.getStackTrace());
    }
}