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把内容写入指定目录指定文件的java文件工具类,支持日期格式目录名的生成
package com.yanek.test;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
public class FileUtil {
private static SimpleDateFormat sdfYmd = new SimpleDateFormat("yyyy-MM-dd");
/**
* @param args
*
*/
public static void main(String[] args) {
writeContentToLocalFile("/temp/test/","test1.txt","test\r\n","UTF-8");
writeContentToLocalFile("/temp/test/","test1.txt","test\r\n","UTF-8");
String currentDate = sdfYmd.format(System.currentTimeMillis());
String basePath="/temp";
String fullpath=basePath+getDirname(currentDate);
writeContentToLocalFile(fullpath,"test1.txt","test111\r\n","UTF-8");
}
/**
*
* @param dirname 目录名
* @param localfilename 文件名
* @param content 文件内容
* @param charset 编码
*/
public static void writeContentToLocalFile(String dirname,String localfilename,String content,String charset){
File f=new File(dirname);
if (!f.exists())
{
f.mkdirs();
}
String localFilename = dirname+File.separator+localfilename;
FileOutputStream fos;
try {
fos = new FileOutputStream(localFilename,true);
try {
OutputStreamWriter writer = new OutputStreamWriter(fos, charset);
try {
writer.write(content);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
writer.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} //覆盖原来的文件 追加到后面
}
/**
* 根据日期字符串得到目录名 格式: /2008/10/15/
* @param datatime
* @return
*/
public static String getDirname(String datatime)
{
String nian=datatime.substring(0,4);
String yue=datatime.substring(5,7);
String ri=datatime.substring(8,10);
return "/"+nian+"/"+yue+"/"+ri+"/";
}
}
最后更新：2017-04-03 16:49:03