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private Date getStartGregorianTime(String date) {
Date d_date = DateUtil.parseDate(date);
int year = new Integer(String.format("%tY", d_date));
int month = new Integer(String.format("%tm", d_date));
int day = new Integer(String.format("%td", d_date));

return new GregorianCalendar(year, month-1, day, 0, 0, 0).getTime();
}

private Date getEndGregorianTime(String date) {
Date d_date = DateUtil.parseDate(date);
int year = new Integer(String.format("%tY", d_date));
int month = new Integer(String.format("%tm", d_date));
int day = new Integer(String.format("%td", d_date));

return new GregorianCalendar(year, month-1, day, 23, 59, 59).getTime();
}

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 package edu.zzu.jdbc.Test;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import com.ambow.jdbc.entity.Student;
public class TestDBConn{
 
 public static void main(String args[]){
  
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public class TestCircle{
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import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
public class DealFile {
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