遍历Propertie属性文件所有内容

package test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class TestProperties {
	/*得到一个src根目录下的属性文件*/
	public InputStream in = getClass().getResourceAsStream("/dayReportLable.properties");
	
	
	
	/**获取属性文件键值对内容(无序)
	 * @param in InputStream
	 * @return Map<String, String>
	 * @throws IOException
	 */
	@SuppressWarnings({ "unchecked", "unchecked" })
	public static Map<String, String> getColumnList1(InputStream in)throws IOException{
		Map<String, String> map = new HashMap<String, String>();
		Properties prop = new Properties();
		prop.load(in);
		Set keyValue = prop.keySet();
		for (Iterator it = keyValue.iterator(); it.hasNext();) {
			String key = (String) it.next();
			String value = prop.getProperty(key);
			map.put(key, value);
		}
		return map;
	}
	
	/**获取属性文件键值对内容(有序)
	 * @param in InputStream
	 * @return LinkedHashMap<String, String>
	 * @throws IOException
	 */
	public LinkedHashMap<String, String> getColumnList2(InputStream in)throws IOException{
		LinkedHashMap<String, String> linkMap = new LinkedHashMap<String, String>();
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(in,"UTF-8"));
		for (String line = bufferedReader.readLine(); line != null; line = bufferedReader.readLine()) {
            line = line.trim();
            //#开头表示注释
            if (line.length() == 0 || line.startsWith("#")) {
                continue;
            }
            int pos = line.indexOf('=');
            if (pos == -1) {
                throw new IllegalArgumentException("invalid line:" + line);
            }
            String key = line.substring(0, pos);
            String value = line.substring(pos + 1);
            if(key==null||value==null) continue;
            key = key.trim();
            value = value.trim();
            if(key.length()<=0||value.length()<=0)continue;
            linkMap.put(key,value);
	    }
		return linkMap;
	}
}