ResourceBundle抛出MissingResourceException

Question

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我正在尝试从文件位置读取属性文件。但是，资源包无法找到文件并引发下面的异常

我试图将该文件保存在类路径下，但没有成功地读取该文件。但是，我的意图是从文件路径读取属性文件，这是来自用户的。因此，我的类可以读取与不可知论的文件输入来获得属性。

Exception in thread "main" java.util.MissingResourceException: Can't find bundle for base name configFileName, locale en_US
    at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1499)
    at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1322)
    at java.util.ResourceBundle.getBundle(ResourceBundle.java:721)
    at com.cisco.propertiesreader.FileConfigLoader.getBundle(FileConfigLoader.java:16)
    at com.cisco.propertiesreader.MainApp.main(MainApp.java:10)

FileConfigLoader类：

package com.cesna.propertiesreader;

import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.apache.log4j.Logger;

public class FileConfigLoader {

    private static final Logger LOGGER = Logger.getLogger(FileConfigLoader.class);

    private static String EMPTY = "";

    public static ResourceBundle getBundle(String configLocation) {

        ResourceBundle rb = ResourceBundle.getBundle("configFileName");

        return rb;

    }

    public static String getValue(ResourceBundle rb, String key) {
        String value = EMPTY;

        try {
            value = rb.getString(key);
        } catch (MissingResourceException mREx) {
            LOGGER.error("Missing Resource : " + key);
        }

        return value;
    }

}

MainApp类：

package com.cesna.propertiesreader;

import java.util.ResourceBundle;

public class MainApp {

    public static void main(String[] args) {

        ResourceBundle resource = FileConfigLoader
                .getBundle("D:\\PDIWorkspace\\PropertyFileReader\\resoures\\config.properties");

        String hive_db = FileConfigLoader.getValue(resource,"hive_db");

        System.out.println(hive_db);
    }

}

我这样做是对的。

config.properties

hive_db=installbase
EDGE_HIVE_CONN=dev-node
target_dir=/app/dev/SmartAnalytics/sqoop_temp/
IB_log_table=IB_log
SR_DG_master_table=data_usage_governance_master
SR_DG_table=data_usage_governance_log

使用以下读取文件的方式解决了问题：

package com.cesna.propertiesreader;

import java.util.ResourceBundle;

public class MainApp {

    public static void main(String[] args) {

        ResourceBundle resource = FileConfigLoader
                .getBundle("com.cisco.propertiesreader.config");

        String hive_db = FileConfigLoader.getValue(resource,"hive_db");

        System.out.println(hive_db);
    }

}

Answer 1

您确定以下内容是有意的

public static ResourceBundle getBundle(String configLocation) {

    ResourceBundle rb = ResourceBundle.getBundle("configFileName");

    return rb;

}

我觉得应该是

public static ResourceBundle getBundle(String configLocation) {

    ResourceBundle rb = ResourceBundle.getBundle(configLocation);

    return rb;

}

如果您想从外部目录加载数据(不是在类路径中)

public static ResourceBundle getBundle(String basePath, String baseName) throws MalformedURLException {
    File file = new File(basePath);
    URL[] urls = {file.toURI().toURL()};
    ClassLoader loader = new URLClassLoader(urls);
    ResourceBundle rb = ResourceBundle.getBundle(baseName, Locale.getDefault(), loader);
    return rb;
}   

Answer 2

public static ResourceBundle getBundle(String configLocation) {
   ResourceBundle rb = ResourceBundle.getBundle("./resources/"+configLocation);
   return rb;
}