1
私はテキストファイルにデータを保存/読み込むプログラムを持っています。しかし、一部のデータは保存されていないように見えますが、その理由を把握することはできません。Javaはすべてのデータを保存しません
ここに簡略化したコードを示します。プログラムを再度実行したとき
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.representer.Representer;
import java.io.*;
import java.nio.charset.Charset;
import java.util.*;
public class Test {
private static DumperOptions options;
private static File saveLocation;
private static Map<String, Object> data;
private static Representer representer;
private static String path;
private static Yaml yaml;
private static void setup() {
saveLocation = new File(path);
if (!saveLocation.exists())
try {
saveLocation.createNewFile();
} catch (IOException exception) {
exception.printStackTrace();
}
setupDumper();
yaml = new Yaml(representer, options);
data = Collections.synchronizedMap(new LinkedHashMap<String, Object>());
}
private static void setupDumper() {
options = new DumperOptions();
representer = new Representer();
options.setIndent(2);
options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
options.setAllowUnicode(Charset.defaultCharset().name().contains("UTF"));
representer.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
}
public static boolean contains(String key) {
return data.containsKey(key);
}
public static boolean exists() {
return data != null;
}
public static boolean hasValue(String key) {
Object tempObject = data.get(key);
return (tempObject != null);
}
public static boolean isEmpty() {
return data.isEmpty() || data == null;
}
public static int getInteger(String key) {
Object tempObject = get(key);
if (tempObject instanceof Integer)
return (Integer) tempObject;
if (tempObject instanceof String)
return Integer.parseInt(tempObject.toString());
if (tempObject instanceof Number)
return Integer.parseInt(tempObject.toString());
return -1;
}
public static Object get(String key) {
if (isEmpty())
return null;
if (key.contains(".")) {
String[] nodes = key.split("\\.");
Map<String, Object> currParent;
if (data.containsKey(nodes[0]) && (data.get(nodes[0]) instanceof Map))
currParent = (Map) data.get(nodes[0]);
else return null;
if (nodes.length > 1) {
for (int i = 1; i < nodes.length - 1; i++) {
if (currParent.containsKey(nodes[i]) && (currParent.get(nodes[i]) instanceof Map))
currParent = (Map) currParent.get(nodes[i]);
else return null;
}
if (currParent.containsKey(nodes[nodes.length - 1]))
return currParent.get(nodes[nodes.length - 1]);
}
} else if (!contains(key) || (contains(key) && !hasValue(key)))
return null;
return data.get(key);
}
public static FileReader read(File file) {
try {
if (!file.exists())
return null;
return new FileReader(file);
} catch (FileNotFoundException exception) {
exception.printStackTrace();
}
return null;
}
public static boolean load() {
setup();
FileReader reader = read(saveLocation);
if (reader == null) {
data = Collections.synchronizedMap(new LinkedHashMap<String, Object>());
return true;
}
data = Collections.synchronizedMap((Map<String, Object>) yaml.load(reader));
System.out.println(getInteger("Settings.Difficulty.Level"));
System.out.println(getInteger("Settings.Difficulty.Locked"));
System.out.println(getInteger("Settings.Cheats.Enabled"));
System.out.println(getInteger("Settings.Cheats.Locked"));
System.out.println(getInteger("Settings.GUI.Enabled"));
System.out.println(data.toString());
return true;
}
public static void save() {
//Settings
set("Settings.Difficulty.Level", 1);// not saving
set("Settings.Difficulty.Locked", 2);
set("Settings.Cheats.Enabled", 3); // not saving
set("Settings.Cheats.Locked", 4);
set("Settings.GUI.Enabled", 5);
try {
if (!saveLocation.exists())
saveLocation.createNewFile();
FileWriter writer = new FileWriter(saveLocation);
writer.write(yaml.dump(data));
writer.flush();
writer.close();
} catch (IOException exception) {
exception.printStackTrace();
}
}
public static void set(String key, Object object) {
if (!exists())
return;
if (key.contains(".")) {
String[] nodes = key.split("\\.");
// if data doesn't contain top-level node, create nested Maps
if (!data.containsKey(nodes[0])) {
Map<String, Object> currNode = new HashMap<>(), prevNode;
currNode.put(nodes[nodes.length - 1], object);
for (int i = nodes.length - 2; i > 0; i--) {
prevNode = currNode;
currNode = new HashMap<>();
currNode.put(nodes[i], prevNode);
}
// set top-level node to previous parent
data.put(nodes[0], currNode);
} else { // if data contains top-level node, work through each Map
Map[] prevNodes = new LinkedHashMap[nodes.length - 1];
if (nodes.length > 1) {
for (int i = 0; i <= nodes.length - 2; i++) {
if (data.containsKey(nodes[i]) && (data.get(nodes[i]) instanceof Map))
prevNodes[i] = new LinkedHashMap((Map) data.get(nodes[i]));
else if (!data.containsKey(nodes[i]))
prevNodes[i] = new LinkedHashMap();
}
prevNodes[prevNodes.length - 1].put(nodes[nodes.length - 1], object);
for (int i = prevNodes.length - 1; i >= 1; i--)
prevNodes[i - 1].put(nodes[i], prevNodes[i]);
data.put(nodes[0], prevNodes[0]);
} else data.put(nodes[0], object);
}
return;
}
data.put(key, object);
}
public static void main(String[] args) {
path = "test.txt";
setup();
save();
load();
}
}
//Settings
set("Settings.Difficulty.Level", 1);// not saving
set("Settings.Difficulty.Locked", 2);
set("Settings.Cheats.Enabled", 3); // not saving
set("Settings.Cheats.Locked", 4);
set("Settings.GUI.Enabled", 5);
これは、私は、ファイルを実行すると、私は
の出力を得ることを期待System.out.println(getInteger("Settings.Difficulty.Level"));
System.out.println(getInteger("Settings.Difficulty.Locked"));
System.out.println(getInteger("Settings.Cheats.Enabled"));
System.out.println(getInteger("Settings.Cheats.Locked"));
System.out.println(getInteger("Settings.GUI.Enabled"));
test.txtのために、整数（1〜5）を保存した後、コンソールに出力しなければなりません
しかし、私は実際に
を取得-1
-1
Settings.Difficulty.LevelとSettings.Cheats.Enabled doesntのは、まったくのファイルに保存されているように見えます。
Settings:
Difficulty:
Locked: 2
Cheats:
Locked: 4
GUI:
Enabled: 5
私は、問題がどこかset方法であるかなり確信しているが、私はそれが正確に何か分かりません。私はまた、保存されない5つの変数のうちの唯一の2つ（なぜなら、使用された名前と関係があるもの）がわからない。
簡体字版はうまく動作します、ありがとう！ – hhaslam11