我想知道是否有任何方法可以通过Java转储我的数据库的sql文件。有点像当你通过phpMyAdmin然后你点击导出它导出你的整个数据库作为一个SQL文件。有什么办法可以通过Java做到这一点吗？我问这个是因为目前我已经编写了手动转储，并且由于我添加了多少个新表，它变得很痛苦。我在下面发布了一个我目前这样做的例子。如果有人能为我提供一种方法，我可以更轻松地告诉我。
示例：
package windhelm.util.pool;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import windhelm.Server;
import windhelm.util.Misc;
public class DumpData {
private static final String DUMP_DIR = "./Data/backups/Database Dumps/";
public static boolean dumpAll() {
String[] all = {"achievements","bank_0","bank_1","bank_2","bank_3","bank_4","appearance","equipment","items","players","points","skills"};
int count = 0;
for(String string : all)
if(dumpData(string))
count++;
return count == all.length;
}
/**
* Loads 1d String array data stored in the player database
*/
public static boolean dumpData(String table) {
try {
System.out.println("Attempting to dump the " + Misc.optimizeText(table) + " table...");
if(Pool.createConnection(Pool.DATABASE_LOCAL)) {
ArrayList<String> a = new ArrayList<String>();
String query = "SELECT * FROM `" + table + "`";
ResultSet rs = Pool.query(query, Pool.savePoolID, Pool.saveConID);
switch(table) {
case "achievements":
a.add("INSERT INTO `" + table + "` (`playerID`, `achieveData`) VALUES");
while(rs.next())
a.add("(" + rs.getString("playerID") +
", '" + rs.getString("achieveData") + "'),");
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "bank_0":
case "bank_1":
case "bank_2":
case "bank_3":
case "bank_4":
a.add("INSERT INTO `" + table + "` (`playerID`, `itemID`, `itemSlot`, `itemAmount`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("itemID") +
", " + rs.getString("itemSlot") +
", " + rs.getString("itemAmount") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "appearance":
a.add("INSERT INTO `" + table + "` (`playerID`, `lookIds`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("lookIds") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "equipment":
a.add("INSERT INTO `" + table + "` (`playerID`, `equipIds`, `equipAmts`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("equipIds") +
", " + rs.getString("equipAmts") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "items":
a.add("INSERT INTO `" + table + "` (`playerID`, `itemIds`, `itemAmts`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("itemIds") +
", " + rs.getString("itemAmts") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "players":
a.add("INSERT INTO `" + table + "` (`playerID`, `dateCreated`, `playerName`, `playerPass`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("dateCreated") +
", " + rs.getString("playerName") +
", " + rs.getString("playerPass") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "points":
a.add("INSERT INTO `" + table + "` (`playerID`, `prestigePoints`, `prestigeTokens`, `dungPoints`, "
+ "`pestPoints`, `windhelmPoints`, `donatorPoints`, `pkPoints`, "
+ "`slayerPoints`, `magePoints`, `auctionPoints`, "
+ "`zombiePoints`, `staffPoints`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("prestigePoints") +
", " + rs.getString("prestigeTokens") +
", " + rs.getString("dungPoints") +
", " + rs.getString("pestPoints") +
", " + rs.getString("windhelmPoints") +
", " + rs.getString("donatorPoints") +
", " + rs.getString("pkPoints") +
", " + rs.getString("slayerPoints") +
", " + rs.getString("magePoints") +
", " + rs.getString("auctionPoints") +
", " + rs.getString("zombiePoints") +
", " + rs.getString("staffPoints") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
case "skills":
a.add("INSERT INTO `" + table + "` (`playerID`, `skillID`, `skillLevel`, `skillXP`) VALUES");
while(rs.next()) {
a.add("(" + rs.getString("playerID") +
", " + rs.getString("skillID") +
", " + rs.getString("skillLevel") +
", " + rs.getString("skillXP") + "),");
}
return writeDump(a, "" + Misc.optimizeText(table) + "_" + Server.calendar.getShortVersion(false) + ".txt");
}
Pool.doneUsing(Pool.savePoolID, Pool.saveConID);
}
} catch (SQLException e) {
e.printStackTrace();
}
return false;
}
private static boolean writeDump(ArrayList<String> data, String file) {
try {
File dir = new File(DUMP_DIR + Server.calendar.getShortVersion(false) + "/");
if(!dir.exists())
dir.mkdirs();
else {
dir.delete();
dir.mkdirs();
}
BufferedWriter out = new BufferedWriter(new FileWriter(DUMP_DIR + Server.calendar.getShortVersion(false) + "/" + file));
try {
for(String string : data) {
if(string != null) {
out.write(string);
out.newLine();
}
}
} finally {
out.close();
}
return true;
} catch (IOException e) {
e.printStackTrace();
}
return false;
}
}