要求:15倍数的时刻开始写文件,然后15分钟写一个,当然不是15分钟后写,只是名字叫这个而已
我现在的程序必须是15倍数运行才可以。。
我想任意时刻开始都能达到15分钟写一次。是csv格式文件。。
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.StringTokenizer;public class CreateCSVFile
{ protected static char _CSV_CHAR = ','; /**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{
// 创建文件
for (int i = 0; i < 100; i++)
{
Date date = new Date();
long end = date.getTime() + 15 * 60 * 1000 * i;
date.setTime(end);
String fileName = dateToStr(date);
File file = new File("C:\\" + fileName + ".csv");
FileOutputStream fos = new FileOutputStream(file);
OutputStreamWriter osw = new OutputStreamWriter(fos);
BufferedWriter bw = new BufferedWriter(osw);
export_column(bw);
export_rowData(bw, fileName);
// 写文件
bw.flush();
bw.close();
}
} /**
* 将某个日期以固定格式转化成字符串
*
* @param date
* @return String
*/
public static String dateToStr(java.util.Date date)
{
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH-mm");
String str = sdf.format(date);
return str;
} private static void export_column(BufferedWriter bw) throws IOException
{
String str = "COLLECTTIME,GRANULARITY,STATUS,SUBNETWORKID,G3NODEBMEID,OBJECTID";
StringTokenizer token = new StringTokenizer(str, ",");
while (token.hasMoreElements())
{
String writeStr = token.nextElement().toString();
bw.write(writeStr);
bw.write(_CSV_CHAR);
}
bw.newLine();
} private static void export_rowData(BufferedWriter bw, String str) throws IOException
{
for (int r = 0; r < 1; r++)
{
for (int c = 0; c < 6; c++)
{
if (c != 0)
{
bw.write(_CSV_CHAR);
}
String writeStr = "test";
if (c == 0)
{
writeStr = str;
}
String strCol = writeStr;
bw.write(strCol);
}
bw.newLine();
} }
}
我现在的程序必须是15倍数运行才可以。。
我想任意时刻开始都能达到15分钟写一次。是csv格式文件。。
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.StringTokenizer;public class CreateCSVFile
{ protected static char _CSV_CHAR = ','; /**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{
// 创建文件
for (int i = 0; i < 100; i++)
{
Date date = new Date();
long end = date.getTime() + 15 * 60 * 1000 * i;
date.setTime(end);
String fileName = dateToStr(date);
File file = new File("C:\\" + fileName + ".csv");
FileOutputStream fos = new FileOutputStream(file);
OutputStreamWriter osw = new OutputStreamWriter(fos);
BufferedWriter bw = new BufferedWriter(osw);
export_column(bw);
export_rowData(bw, fileName);
// 写文件
bw.flush();
bw.close();
}
} /**
* 将某个日期以固定格式转化成字符串
*
* @param date
* @return String
*/
public static String dateToStr(java.util.Date date)
{
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH-mm");
String str = sdf.format(date);
return str;
} private static void export_column(BufferedWriter bw) throws IOException
{
String str = "COLLECTTIME,GRANULARITY,STATUS,SUBNETWORKID,G3NODEBMEID,OBJECTID";
StringTokenizer token = new StringTokenizer(str, ",");
while (token.hasMoreElements())
{
String writeStr = token.nextElement().toString();
bw.write(writeStr);
bw.write(_CSV_CHAR);
}
bw.newLine();
} private static void export_rowData(BufferedWriter bw, String str) throws IOException
{
for (int r = 0; r < 1; r++)
{
for (int c = 0; c < 6; c++)
{
if (c != 0)
{
bw.write(_CSV_CHAR);
}
String writeStr = "test";
if (c == 0)
{
writeStr = str;
}
String strCol = writeStr;
bw.write(strCol);
}
bw.newLine();
} }
}
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