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  • 将文件输出到指定的目录或者控制台

    package java;
    
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.OutputStream;
    
    public class FilePut {
        public static void main(String[] args) throws IOException {
            LogWriter.log("log info...");
        }
    }
    class LogWriter {
        // 可以写作配置:true写文件; false输出控制台
        private static boolean fileLog = true;
        private static String logFileName = "D:/Users/Desktop/随机uuid.txt";
        
        public static void log(String info) throws IOException {
            OutputStream out = getOutputStream();
            out.write(info.getBytes("utf-8"));
        }
        
        public static OutputStream getOutputStream() throws IOException {
            if (fileLog) {
                File file = new File(logFileName);
                if (!file.exists())
                    file.createNewFile();
                return new FileOutputStream(file);
            } else {
                return System.out;
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/qqyong123/p/8478477.html
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