为什么不创建属性文件？

Question

我试图使一个属性文件在Java。可悲的是，当我启动Minecraft（因为这是Forge中的一个mod）时，文件不会创建。我会非常感谢任何帮助我的人。下面是代码：

package mymod.properties;

import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

public class WriteToProperties {

public static void main(String[] args) {

    Properties prop = new Properties();
    try {
        prop.setProperty("Test", "Yay");

        prop.store(new FileOutputStream("Test.properties"), null);

    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

}

Answer 1

此文件是在项目的根目录中创建的。如果要保存某些特定路径，请在项目的根目录中创建类似于props的文件夹，并将FileOutputStream构造函数中的路径更改为“props\\Test.properties”

Answer 2

基本上，您需要的是初始化（event.getSuggestedConfigurationFile（））

Forge基本上希望把默认设置交给你。我还建议你逻辑地组织事情，这样它就很好，干净，以后可以访问，而且更容易管理。

我使用它作为配置加载程序

package tschallacka.magiccookies.init;

import java.io.File;

import net.minecraftforge.common.config.Configuration;
import net.minecraftforge.common.config.Property;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import tschallacka.magiccookies.MagicCookies;
import tschallacka.magiccookies.api.ModHooks;
import tschallacka.magiccookies.api.Preferences;

public class ConfigLoader {
    public static Configuration config;
    public static final String CATEGORY_GENERAL = "GeneralSettings";
    public static final String CATEGORY_SERVER = "ServerPerformance";
    public static void init(FMLPreInitializationEvent event) {
        ModHooks.MODID = MagicCookies.MODID;
        ModHooks.MODNAME = MagicCookies.MODNAME;
        ModHooks.VERSION = MagicCookies.VERSION;
        try {
            initialize(event.getSuggestedConfigurationFile());
        }
        catch (Exception e) {
            MagicCookies.log.error("MagicCookie failed to load preferences. Reverting to default");
        }
        finally {
            if (config != null) {
                save();
            }
        }
    }
    private static void initialize(final File file) {
        config = new Configuration(file);
        config.addCustomCategoryComment(CATEGORY_GENERAL, "General Settings");
        config.addCustomCategoryComment(CATEGORY_SERVER, "Server  performance settings");
        Preferences.magicCookieIsLoaded = true;
        config.load();
        syncConfigurable();
    }
    private static void save() {
        config.save();
    }
    private static void syncConfigurable() {

        final Property awesomeMod = config.get(Configuration.CATEGORY_GENERAL, "awesome_mod", Preferences.awesomeMod);
        awesomeMod.comment = "Set this to yes if you think this mod is awesome, maybe it will at some time unlock a special thing.... or not... but that's only for people who think this is an wesome Mod ;-)";
        Preferences.awesomeMod = awesomeMod.getString();

        final Property numberOfBlocksPlacingPerTickByStripper = config.get(CATEGORY_SERVER,"number_of_blocks_placing_per_tick_by_stripper",Preferences.numberOfBlocksPlacingPerTickByStripper);
        numberOfBlocksPlacingPerTickByStripper.comment = "This affects how many blocks will be placed per tick by the creative stripper tool per tick. The stripper tool will only place blocks if ticks are take less than 50ms. If you experience lag lower this number, if you don't experience lag and want faster copy pasting, make this number higher. For an awesome slowmo build of your caste set this to 1 ;-). Set to 0 to render everything in one go per chunk";
        Preferences.numberOfBlocksPlacingPerTickByStripper = numberOfBlocksPlacingPerTickByStripper.getInt();

        final Property averageTickTimeCalculationSpan = config.get(CATEGORY_SERVER,"number_of_ticks_used_for_average_time_per_tick_calculation",Preferences.averageTickTimeCalculationSpan);
        averageTickTimeCalculationSpan.comment = "This number is the number of tick execution times are added together to calculation an average. The higher number means less lag by some things like the strippers, but can also lead to longer execution times for the strippers. Basically if your server is always running behind on server ticks set this value to 1, to at least get some work done when your server is running under 50ms tickspeed";
        Preferences.averageTickTimeCalculationSpan = averageTickTimeCalculationSpan.getInt();

        final Property acceptableTickduration = config.get(CATEGORY_SERVER,"acceptable_tick_duration",Preferences.acceptableTickduration);
        acceptableTickduration.comment = "Define here what you see as acceptable tick speed where MagicCookies can do some of its magic. If average tick speed or current tick speed is higher than this value it won't perform some tasks to help manage server load.";
        Preferences.acceptableTickduration = (long)acceptableTickduration.getDouble();
    }
}

值持有者首选项类。这纯粹是为了我能做首选项。valuename无处不在。

package tschallacka.magiccookies.api;
/**
 * Here the preferences of MagicCookies will be stored
 * and kept after the config's are loaded.
 * @author Tschallacka
 *
 */
public class Preferences {
    public static boolean magicCookieIsLoaded = false;
    public static String awesomeMod = "Well?";
    public static boolean isLoadedThaumcraft = false;
    public static int numberOfBlocksPlacingPerTickByStripper = 0;
    public static int averageTickTimeCalculationSpan = 60;
    public static long acceptableTickduration = 50l;
    public static int darkShrineFrequency = 0;
    public static boolean darkShrineSpawnLogging = true;
    public static boolean entropyTempleSpawnLogging = true;
    public static int entropySize = 30;
}

在您的主mod文件中：

@EventHandler
public void preInit(FMLPreInitializationEvent e) {
    MagicCookies.log.warn("Preinit starting");
    MinecraftForge.EVENT_BUS.register((Object)MagicCookies.instance);
    ConfigLoader.init(e);
}

之后，您可以从首选项类中获取所有首选项