Java Properties Load from File loadProperties(File fileName)

Description

load Properties

License

Apache License

Declaration

public static void loadProperties(File fileName) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   www . j a  va2s .c o m*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.util.Map;
import java.util.Properties;

public class Main {
    public static void loadProperties(File fileName) throws IOException {
        Properties properties = new Properties();
        InputStream is = new FileInputStream(fileName);
        try {
            properties.load(is);
        } finally {
            is.close();
        }
        for (Map.Entry<Object, Object> entry : properties.entrySet()) {
            String key = (String) entry.getKey();
            if (System.getProperty(key) != null) {
                // allow system properties to override properties file
                continue;
            }
            System.setProperty(key, (String) entry.getValue());
        }
    }
}

Related

1. loadProperties(File file)
2. loadProperties(File file)
3. loadProperties(File file)
4. loadProperties(File file)
5. loadProperties(File file, String charset)
6. loadProperties(File path)
7. loadProperties(File propertyFile)
8. loadProperties(File propertyFile, Properties properties)
9. loadProperties(final Class clasz, final String propertiesFilename)