Java读取ini配置

不够通用,呵呵。

读取ini的配置的格式如下：

[section1]

key1=value1



[section2]

key2=value2



。。。。

其中可能一个Key对应多个value的情况。

代码如下：

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;



/**

 * 类名：读取配置类<br>

 * @author Phonnie

 *

 */

public class ConfigReader {

	

	/**

	 * 整个ini的引用

	 */

	private Map<String,Map<String, List<String>>>  map = null;

	/**

	 * 当前Section的引用

	 */

	private String currentSection = null;

	

	/**

	 * 读取

	 * @param path

	 */

	public ConfigReader(String path) {

		map = new HashMap<String, Map<String,List<String>>>();

		try {

			BufferedReader reader = new BufferedReader(new FileReader(path));

			read(reader);

		} catch (IOException e) {

			e.printStackTrace();

			throw new RuntimeException("IO Exception:" + e); 

		}

		

	}



	/**

	 * 读取文件

	 * @param reader

	 * @throws IOException

	 */

	private void read(BufferedReader reader) throws IOException {

		String line = null; 

		while((line=reader.readLine())!=null) {

			parseLine(line);

		}

	}

	

	/**

	 * 转换

	 * @param line

	 */

	private void parseLine(String line) {

		line = line.trim();

		// 此部分为注释

		if(line.matches("^\\#.*$")) {

			return;

		}else if (line.matches("^\\[\\S+\\]$")) {

			// section

			String section = line.replaceFirst("^\\[(\\S+)\\]$","$1");

			addSection(map,section);

		}else if (line.matches("^\\S+=.*$")) {

			// key ,value

			int i = line.indexOf("=");

			String key = line.substring(0, i).trim();

			String value =line.substring(i + 1).trim();

			addKeyValue(map,currentSection,key,value);

		}

	}





	/**

	 * 增加新的Key和Value

	 * @param map

	 * @param currentSection

	 * @param key

	 * @param value

	 */

	private void addKeyValue(Map<String, Map<String, List<String>>> map,

			String currentSection,String key, String value) {

		if(!map.containsKey(currentSection)) {

			return;

		}

		

		Map<String, List<String>> childMap = map.get(currentSection);

		

		if(!childMap.containsKey(key)) {

			List<String> list = new ArrayList<String>();

			list.add(value);

			childMap.put(key, list);

		} else {

			childMap.get(key).add(value);

		}

	}





	/**

	 * 增加Section

	 * @param map

	 * @param section

	 */

	private void addSection(Map<String, Map<String, List<String>>> map,

			String section) {

		if (!map.containsKey(section)) {

			currentSection = section;

			Map<String,List<String>> childMap = new HashMap<String, List<String>>();

			map.put(section, childMap);

		}

	}

	

	/**

	 * 获取配置文件指定Section和指定子键的值

	 * @param section

	 * @param key

	 * @return

	 */

	public List<String> get(String section,String key){

		if(map.containsKey(section)) {

			return  get(section).containsKey(key) ?

					get(section).get(key): null;

		}

		return null;

	}

	

	

	

	/**

	 * 获取配置文件指定Section的子键和值

	 * @param section

	 * @return

	 */

	public Map<String, List<String>> get(String section){

	    return 	map.containsKey(section) ? map.get(section) : null;

 	}

	

	/**

	 * 获取这个配置文件的节点和值

	 * @return

	 */

	public Map<String, Map<String, List<String>>> get(){

		return map;

	}

	

}