springboot实现数据库增量备份的全部代码
时间: 2024-03-21 21:38:49 浏览: 143
以下是使用Spring Boot实现数据库增量备份的示例代码:
```java
@Component
public class DatabaseBackupTask {
@Value("${database.backup.path}")
private String backupPath;
@Autowired
private DataSource dataSource;
@Autowired
private JdbcTemplate jdbcTemplate;
private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
@Scheduled(cron = "${database.backup.cron}")
public void backupDatabase() {
try {
File backupFolder = new File(backupPath);
if (!backupFolder.exists() || !backupFolder.isDirectory()) {
backupFolder.mkdirs();
}
String backupFileName = "backup-" + DATE_FORMAT.format(new Date()) + ".sql";
File backupFile = new File(backupFolder, backupFileName);
ProcessBuilder processBuilder = new ProcessBuilder(
"mysqldump",
"--skip-comments",
"--skip-triggers",
"-u" + getUserName(),
"-p" + getPassword(),
"--databases",
getDatabaseName(),
"--result-file=" + backupFile.getAbsolutePath());
processBuilder.environment().put("MYSQL_PWD", getPassword());
Process process = processBuilder.start();
int exitCode = process.waitFor();
if (exitCode != 0) {
throw new RuntimeException("Failed to backup database");
}
jdbcTemplate.update("INSERT INTO backup_history (file_name, backup_time) VALUES (?, ?)", backupFileName, new Date());
} catch (Exception e) {
e.printStackTrace();
}
}
private String getUserName() {
return dataSource.getUsername();
}
private String getPassword() {
return dataSource.getPassword();
}
private String getDatabaseName() {
return dataSource.getConnection().getCatalog();
}
}
```
在上面的代码中,我们使用了Spring Boot的定时任务注解`@Scheduled`来定期执行备份任务。我们使用`mysqldump`命令来生成SQL备份文件,并将其保存在指定的备份目录中。备份文件名是基于当前时间生成的,以避免覆盖之前的备份文件。我们还使用JdbcTemplate将备份历史记录保存在数据库中。请注意,这里我们使用了MySQL,如果您使用其他数据库,需要相应地更改备份命令。
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