我从文件 ID、公司名称和日期中获取三个不同的子字符串
在检索时，我需要将按日期值排序的值存储到对象中。
我已检索字符串并将其转换为我需要并存储的日期格式。
与其每次使用 sql 排序再次拉取，不如尝试在插入之前存储按日期排序。
class ReadingFile
{
public static String input_path = ("C:\\Users\\RAVI\\Desktop\\Skills\\inputs");
public static String output_path = ("C:\\Users\\RAVI\\Desktop\\Skills\\outputs");
static BufferedReader br;
void read(){
SimpleDateFormat sdf = new SimpleDateFormat("hh:MM.ss");
SimpleDateFormat parsingSdf = new SimpleDateFormat("hh:MM.ss a");
ArrayList<Object[]> list = new ArrayList<Object[]>();
try
{
File fi = new File(input_path);
File[] fileCount = fi.listFiles();
for (int i = 0; i < fileCount.length; i++)
{
File file = fileCount[i];
if (file.isFile())
{
System.out.println("Total file count : " + fileCount.length);
String fileName = file.getName();
System.out.println("File name : " + fileName);
String data;
br = new BufferedReader(new FileReader(input_path + "\\"+ fileName));
while ((data = br.readLine()) != null)
{
if (data.contains(">"))
{
Object[] received = new Object[3];
String dat = data.substring(data.indexOf(" ") + 1,
data.indexOf("-") - 1);
// System.out.println(dat);
Date date = sdf.parse(dat.substring(
dat.indexOf(" "), dat.lastIndexOf(".")));
// System.out.println(date);
String timeFormat = parsingSdf.format(date);
// System.out.println(timeFormat);
received[0] = dat.substring(dat.indexOf("0"),dat.indexOf(" ") + 1)+ timeFormat;
// System.out.println(received[0]);
received[1] = data.substring(data.indexOf("<") + 1,data.indexOf(",") - 1);
// System.out.println(received[1]);
received[2] = data.substring(data.indexOf("Target"),data.lastIndexOf("."));
//System.out.println(received[2]);
list.add(received);
}
}
}
}
下面添加了示例输入和相应的输出
input
(8834675) 06/01/2013 04:03.36.562 -->Successful password change for user=<U753838>, Password Target=<DOW>.
(8858218) 06/01/2013 07:18.42.312 -->Successful password change for user=<U640630>, Password Target=<DOW>.
(8893874) 06/01/2013 12:14.42.410 -->Successful password change for user=<U090521>, Password Target=<DOW>.
output
06/01/2013 04:03.36 AM U753838 Target=<DOW>
06/01/2013 07:06.42 AM U640630 Target=<DOW>
06/01/2013 12:02.42 AM U090521 Target=<DOW>
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
public class ReadingFile {
public static String input_path = ("D:\\Aritra\\inputs");
public static String output_path = ("D:\\Aritra\\outputs");
static BufferedReader br;
void read() {
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm.ss");
SimpleDateFormat parsingSdf = new SimpleDateFormat("hh:mm.ss a");
ArrayList<Object[]> list = new ArrayList<Object[]>();
try {
File fi = new File(input_path);
File[] fileCount = fi.listFiles();
for (int i = 0; i < fileCount.length; i++) {
File file = fileCount[i];
if (file.isFile()) {
System.out.println("Total file count : " + fileCount.length);
String fileName = file.getName();
System.out.println("File name : " + fileName);
String data;
br = new BufferedReader(new FileReader(input_path + "\\" + fileName));
while ((data = br.readLine()) != null) {
if (data.contains(">")) {
Object[] received = new Object[3];
String dat = data.substring(data.indexOf(" ") + 1, data.indexOf("-") - 1);
// System.out.println(dat);
Date date = sdf.parse(dat.substring(dat.indexOf(" "), dat.lastIndexOf(".")));
// System.out.println(date);
String timeFormat = parsingSdf.format(date);
// System.out.println(timeFormat);
received[0] = dat.substring(dat.indexOf("0"), dat.indexOf(" ") + 1) + timeFormat;
// System.out.println(received[0]);
received[1] = data.substring(data.indexOf("<") + 1, data.indexOf(",") - 1);
// System.out.println(received[1]);
received[2] = data.substring(data.indexOf("Target"), data.lastIndexOf("."));
// System.out.println(received[2]);
//list.add(received);
boolean isAdded = false;
if (!list.isEmpty()) {
Date currentEntry = new SimpleDateFormat("dd/MM/yyyy hh:mm.ss a")
.parse((String) received[0]);
int count = 0;
do {
Object[] loopElement = list.get(count);
Date loopElementDate = new SimpleDateFormat("dd/MM/yyyy hh:mm.ss a")
.parse((String) loopElement[0]);
int compareResult = currentEntry.compareTo(loopElementDate);
if(compareResult<=0) {
list.add(count,received);
isAdded = true;
break;
}
count++;
} while (count < list.size());
}
if(!isAdded) {
list.add(received);
}
}
}
}
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("<<<<<<<<<<<<<< Result >>>>>>>>>>>>>>>>");
for(Object[] l:list) {
for(Object l1:l) {
System.out.print("["+l1+"]");
}
System.out.println();
}
}
public static void main(String[] args) {
new ReadingFile().read();
}
}
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