java中的restore的簡單介紹

本文目錄一覽：

• 1、java中的restore defaults是什麼意思
• 2、java 中restore可以回到原值嗎
• 3、在eclipse不小心刪掉了java文件怎麼找回？

java中的restore defaults是什麼意思

java中的restore defaults是

恢復默認值的意思，是不是操作了複位。

java 中restore可以回到原值嗎

public class RestoreDatabase {

public static final String mysqlBinPath = “C://Program Files//a href=”” class=’replace_word’ title=”MySQL知識庫” target=’_blank’ style=’color:#df3434; font-weight:bold;’MySQL/a//a href=”” class=’replace_word’ title=”MySQL知識庫” target=’_blank’ style=’color:#df3434; font-weight:bold;’mysql/a Server 5.1//bin”;

public static final String username = “root”;

public static final String password = “admin”;

public static final String dbname = “test_manager”;

public static final String dbPath = “d://test_manager2.sql”;

public static final String host = “localhost”;

public void store(String dest, String dbname) throws IOException {

InputStream input = new FileInputStream(dest);

restore(input,dbname);

}

private void restore(InputStream input, String dbname) throws IOException {

String command = “cmd /c” + mysqlBinPath + “mysql -h “+host+” -u” + username + ” -p” + password + ” ” + dbname;

Process process = Runtime.getRuntime().exec(command);

OutputStream out = process.getOutputStream();

String line = null;

String outStr = null;

StringBuffer sb = new StringBuffer(“”);

BufferedReader br = new BufferedReader(new InputStreamReader(input,”utf8″));

while((line = br.readLine()) != null) {

sb.append(line + “/n”);

}

outStr = sb.toString();

OutputStreamWriter writer = new OutputStreamWriter(out,”utf8″);

writer.write(outStr);

writer.flush();

out.close();

br.close();

writer.close();

}

public static void main(String[] args) throws IOException {

RestoreDatabase restore = new RestoreDatabase();

restore.store(dbPath, dbname);

}

}

在eclipse不小心刪掉了java文件怎麼找回？

eclipse中不小心刪了java文件可以通過eclipse提供的恢復功能來恢復，步驟如下：

右鍵點擊java項目工程名，選擇restort from history，如下圖：

選擇要恢復的java文件，點擊restore，就可以恢復完成，如下圖：

結果如下：