java - MissingResourceException 但资源并未丢失

Question

我刚刚在 Windows Netbeans 上的 IDE 中完成了 Telegram 机器人的编程。运行完美，没有任何问题。我的问题是，当我创建一个存储包以便将其上传到我自己的 Ubuntu VPS 中然后运行它(使用 java -jar PastaBot.jar)时，控制台显示此错误:

Exception in thread "main" java.util.MissingResourceException: Can't find bundle for base name localisation.strings, locale en_US
    at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1564)
    at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1387)
    at java.util.ResourceBundle.getBundle(ResourceBundle.java:1082)
    at utils.LocalisationService.<init>(LocalisationService.java:74)
    at utils.LocalisationService.getInstance(LocalisationService.java:62)
    at pastabot.Pasta.populateDongers(Pasta.java:53)
    at pastabot.Pasta.<init>(Pasta.java:29)
    at pastabot.BotHandler.<init>(BotHandler.java:20)
    at pastabot.TelegramBotJava.main(TelegramBotJava.java:26)
Caused by: java.lang.IllegalArgumentException: Malformed \uxxxx encoding.
    at java.util.Properties.loadConvert(Properties.java:574)
    at java.util.Properties.load0(Properties.java:391)
    at java.util.Properties.load(Properties.java:341)
    at java.util.PropertyResourceBundle.<init>(PropertyResourceBundle.java:138)
    at java.util.ResourceBundle$Control.newBundle(ResourceBundle.java:2687)
    at java.util.ResourceBundle.loadBundle(ResourceBundle.java:1501)
    at java.util.ResourceBundle.findBundle(ResourceBundle.java:1465)
    at java.util.ResourceBundle.findBundle(ResourceBundle.java:1419)
    at java.util.ResourceBundle.findBundle(ResourceBundle.java:1419)
    at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1361)
    ... 7 more

我不明白为什么我的 IDE 中一切正常，但在我的服务器中却无法启动。我知道这是与我的属性文件相关的问题，并且在大多数情况下，由于 strings.properties 文件位于错误的路径中而引发。

这是我的文件层次结构:

这是我的 build.xml 文件:也许我缺少其中的一个属性，但我不知道如何解决这个问题，因为我不太喜欢 xml 文件。

<?xml version="1.0" encoding="UTF-8"?>
<project name="Copypastabot" default="default" basedir=".">
<description>Builds, tests, and runs the project Copypastabot.</description>
<import file="nbproject/build-impl.xml"/>

<target name="package-for-store" depends="jar">
    <property name="store.jar.name" value="PastaBot"/>
    <property name="store.dir" value="store"/>
    <property name="store.jar" value="${store.dir}/${store.jar.name}.jar"/>
    <echo message="Packaging ${application.title} into a single JAR at ${store.jar}"/>
    <delete dir="${store.dir}"/>
    <mkdir dir="${store.dir}"/>
    <jar destfile="${store.dir}/temp_final.jar" filesetmanifest="skip">
        <zipgroupfileset dir="dist" includes="*.jar"/>
        <zipgroupfileset dir="dist/lib" includes="*.jar"/>
        <manifest>
            <attribute name="Main-Class" value="${main.class}"/>
        </manifest>
    </jar>
    <zip destfile="${store.jar}">
        <zipfileset src="${store.dir}/temp_final.jar"
                excludes="META-INF/*.SF, META-INF/*.DSA, META-INF/*.RSA"/>
    </zip>
    <delete file="${store.dir}/temp_final.jar"/>
</target>

这是我用来获取正确的语言环境字符串的 LocalizationService 类，正如您在单例构造函数中看到的那样，我找到了(我认为正确的)本地化文件:

package utils;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;


public class LocalisationService {
private static LocalisationService instance = null;
private final HashMap<String, String> supportedLanguages = new HashMap<>();

private ResourceBundle english;
private ResourceBundle italian;

private class CustomClassLoader extends ClassLoader {
    public CustomClassLoader(ClassLoader parent) {
        super(parent);

    }

    public InputStream getResourceAsStream(String name) {
        InputStream utf8in = getParent().getResourceAsStream(name);
        if (utf8in != null) {
            try {
                byte[] utf8Bytes = new byte[utf8in.available()];
                utf8in.read(utf8Bytes, 0, utf8Bytes.length);
                byte[] iso8859Bytes = new String(utf8Bytes, "UTF-8").getBytes("ISO-8859-1");
                return new ByteArrayInputStream(iso8859Bytes);
            } catch (IOException e) {
                e.printStackTrace();

            } finally {
                try {
                    utf8in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }
}


public static LocalisationService getInstance() {
    if (instance == null) {
        synchronized (LocalisationService.class) {
            if (instance == null) {
                instance = new LocalisationService();
            }
        }
    }
    return instance;
}


private LocalisationService() {
    CustomClassLoader loader = new CustomClassLoader(Thread.currentThread().getContextClassLoader());
    english = ResourceBundle.getBundle("localisation.strings", new Locale("en", "US"), loader);
    supportedLanguages.put("en", "English");
    italian = ResourceBundle.getBundle("localisation.strings", new Locale("it", "IT"), loader);
    supportedLanguages.put("it", "Italiano");
}

/**
 * Get a string in default language (en)
 * @param key key of the resource to fetch
 * @return fetched string or error message otherwise
 */
public String getString(String key) {
    String result;
    try {
        result = english.getString(key);
    } catch (MissingResourceException e) {
        result = "String not found";
    }

    return result;
}

/**
 * Get a string in default language
 * @param key key of the resource to fetch from localisations
 * @param language code key for language (such as "EN" for english)
 * @return fetched string or error message otherwise
 */
public String getString(String key, String language) {
    String result;
    try {
        switch (language.toLowerCase()) {
            case "en":
                result = english.getString(key);
                break;
            case "it":
                result = italian.getString(key);
                break;
            default:
                result = english.getString(key);
                break;
        }
    } catch (MissingResourceException e) {
        result = english.getString(key);
    }

    return result;
}

public HashMap<String, String> getSupportedLanguages() {
    return supportedLanguages;
}

public String getLanguageCodeByName(String language) {
    return supportedLanguages.entrySet().stream().filter(x -> x.getValue().equals(language)).findFirst().get().getKey();
}
}

我已经寻找解决方案，但没有任何帮助:strings_en.properties 位置正确，所以我无法了解发生了什么。直到昨天我才被这个问题困扰，这让我发疯。

你们可以帮帮我吗？谢谢:)

Answer 1

我找到了编辑 strings.properties 文件的解决方案:像这样的字符串

hello\user

抛出 IllegalArgumentException ，这会导致程序崩溃，因此它不会加载任何内容(这就是它无法检索 strings_en.properties 的原因)。相反，最好像这样转义“\”:

hello\\user

这是因为程序尝试将\user 编码为十六进制值，但事实并非如此。包含大量由非拉丁字符组成的字符串(例如一行 ascii 笑脸)的属性文件可能是一个真正麻烦的问题，因为通常使用\u 字符。