package home;
|
|
import java.io.BufferedWriter;
|
import java.io.File;
|
import java.io.FileWriter;
|
import java.io.IOException;
|
import java.util.Date; // 修复：使用 java.util.Date 而不是 java.sql.Date
|
import java.text.SimpleDateFormat;
|
|
/**
|
* 日志记录工具类
|
*/
|
public class LogUtil {
|
private static final String LOG_DIR = "systemfile/logfile";
|
private static final String LOG_FILE = LOG_DIR + "/openlog.txt";
|
private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
|
|
/**
|
* 记录程序启动日志
|
*/
|
public static void logOpen() {
|
ensureLogDirExists();
|
String timestamp = DATE_FORMAT.format(new Date());
|
writeLog("程序启动: " + timestamp + "\n");
|
}
|
|
/**
|
* 记录程序关闭日志并计算工作时长
|
* @param startTime 程序启动时间戳
|
*/
|
public static void logClose(long startTime) {
|
ensureLogDirExists();
|
long endTime = System.currentTimeMillis();
|
String closeTime = DATE_FORMAT.format(new Date(endTime));
|
|
// 计算工作时长
|
long duration = endTime - startTime;
|
String durationStr = formatDuration(duration);
|
|
String log = "程序关闭: " + closeTime + "\n" +
|
"工作时长: " + durationStr + "\n" +
|
"-----------------------------------\n";
|
writeLog(log);
|
}
|
|
/**
|
* 确保日志目录存在
|
*/
|
private static void ensureLogDirExists() {
|
File dir = new File(LOG_DIR);
|
if (!dir.exists()) {
|
boolean created = dir.mkdirs(); // 创建多级目录
|
if (!created) {
|
System.err.println("无法创建日志目录: " + LOG_DIR);
|
}
|
}
|
}
|
|
/**
|
* 格式化时长（毫秒→可读字符串）
|
*/
|
private static String formatDuration(long millis) {
|
long seconds = millis / 1000;
|
long hours = seconds / 3600;
|
long minutes = (seconds % 3600) / 60;
|
seconds = seconds % 60;
|
return String.format("%d小时 %d分钟 %d秒", hours, minutes, seconds);
|
}
|
|
/**
|
* 写入日志到文件（追加模式）
|
*/
|
private static void writeLog(String content) {
|
try (FileWriter fw = new FileWriter(LOG_FILE, true);
|
BufferedWriter bw = new BufferedWriter(fw)) {
|
bw.write(content);
|
bw.flush(); // 确保内容立即写入
|
} catch (IOException e) {
|
System.err.println("写入日志失败: " + e.getMessage());
|
}
|
}
|
|
public static void log(String string) {
|
// TODO 自动生成的方法存根
|
|
}
|
}
|
