已上圖就是ini檔案的格式，經常在配置檔案中用到。

1、核心程式碼：

/**
     * 去除ini檔案中的註釋，以";"或"#"開頭，順便去除UTF-8等檔案的BOM頭
     * @param source
     * @return
     */
    private static String removeIniComments(String source){
        String result = source;
        
        if(result.contains(";")){
            result = result.substring(0, result.indexOf(";"));
        }
        
        
 
if(result.contains("#")){
            result = result.substring(0, result.indexOf("#"));
        }
        
        return result.trim();
    }
    

    
    public static Map<String,Object> readIni(String filename){
        Map<String,List<String>> listResult=new HashMap<>();
        Map
 
<String,Object> result=new HashMap();
        String globalSection = "global";
        
        File file = new File(filename);
        BufferedReader reader=null;
        try {
            reader=new BufferedReader(new InputStreamReader(new FileInputStream(file)));
            String str 
 
= null;
            String currentSection = globalSection; //處理預設的section
            List<String> currentProperties = new ArrayList<>();
            boolean lineContinued = false;
            String tempStr = null;
            
            //一次讀入一行（非空），直到讀入null為檔案結束
            //先全部放到listResult<String, List>中
            while ((str = reader.readLine()) != null) {
                str = removeIniComments(str).trim(); //去掉尾部的註釋、去掉首尾空格
                
                if("".equals(str)||str==null){
                    continue;
                }
 
                //如果前一行包括了連線符'\'
                if(lineContinued == true){
                    str = tempStr + str;
                }
                
                //處理行連線符'\'
                if(str.endsWith("\\")){
                    lineContinued = true;
                    tempStr = str.substring(0,str.length()-1);
                    continue;
                }else {
                    lineContinued = false;
                }
                
                //是否一個新section開始了
                if(str.startsWith("[") && str.endsWith("]")){
                    String newSection = str.substring(1, str.length()-1).trim();
 
                    //如果新section不是現在的section，則把當前section存進listResult中
                    if(!currentSection.equals(newSection)){
                        listResult.put(currentSection, currentProperties);
                        currentSection = newSection;
                        
                        //新section是否重複的section
                        //如果是，則使用原來的list來存放properties
                        //如果不是，則new一個List來存放properties
                        currentProperties=listResult.get(currentSection);
                        if(currentProperties==null){
                            currentProperties = new ArrayList<>();
                        }
                    }
                }else{
                    currentProperties.add(str);
                }
            }
            //把最後一個section存進listResult中
            listResult.put(currentSection, currentProperties);
            
            reader.close();


        }catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException e1) {
                }
            }
        }
        
        
        //整理拆開name=value對，並存放到MAP中：
        //從listResult<String, List>中，看各個list中的元素是否包含等號“=”，如果包含，則拆開並放到Map中
        //整理後，把結果放進result<String, Object>中
        for(String key : listResult.keySet()){
            List<String> tempList = listResult.get(key);
            
            //空section不放到結果裡面
            if(tempList==null||tempList.size()==0){
                continue;
            }
            
            if(tempList.get(0).contains("=")){ //name=value對，存放在MAP裡面
                Map<String, String> properties = new HashMap<>();
                for(String s : tempList){
                    int delimiterPos = s.indexOf("=");
                    //處理等號前後的空格
                    properties.put(s.substring(0,delimiterPos).trim(), s.substring(delimiterPos+1, s.length()).trim());
                }
                result.put(key, properties);
            }else{ //只有value，則獲取原來的list
                result.put(key, listResult.get(key));
            }
        }
        
        return result;

        
    }
    

2、測試程式碼：

Map<String, Object> ini = readIni("E:/testini.ini");
        for(String k : ini.keySet()){
            System.out.println(k + ini.get(k));            
        }
        
        System.out.println("獲取單個值："+((Map<String, String>)ini.get("section2")).get("key3"));