解析txt电子档(tab空格)

最新推荐文章于 2024-10-13 10:04:32 发布

原创最新推荐文章于 2024-10-13 10:04:32 发布 · 210 阅读

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本文介绍了一个Java方法，该方法能够从指定路径的TXT文件中读取数据，并将其存储为Map结构。具体实现包括使用BufferedReader进行逐行读取、通过StringTokenizer分割每行数据，最终将数据按行存储在Map中。此外，还展示了如何遍历并打印Map的内容。

 public static Map<Integer,List<String>>  readTxt(File file){
    	//jt.readTxt(new File("C:/Users/Administrator/Desktop/aaaaa.txt"));
    	BufferedReader br = null;
    	Map<Integer,List<String>> map = new HashMap<Integer, List<String>>();
    	List<String> values = null;
    	int key = 1;
    	try {
    		InputStreamReader read = new InputStreamReader(new FileInputStream(file), "GBK");
    		br = new BufferedReader(read);
    		String temp = null;
    		while ((temp = br.readLine()) != null) {
    			if("".equals(temp)){
    				continue;
    			}
    			values = new ArrayList<String>();
    			StringTokenizer st = new StringTokenizer(temp);
    			while(st.hasMoreElements()){
    				String num = st.nextToken("\t").trim();
    				values.add(num);
    			}
    			map.put(key, values);
    			key++;
    		}
		} catch (Exception e) {
			e.printStackTrace();
		}finally {
			try {
				if(null != br){
					br.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return map;
    }
	public static void main(String[] args) throws SQLException {
		JavaTools jt = new JavaTools();
		Map<Integer,List<String>> map = jt.readTxt(new File("C:/Users/Administrator/Desktop/aaaaa.txt"));
		Iterator<Entry<Integer, List<String>>> iterator = map.entrySet().iterator();
		while(iterator.hasNext()){
			Entry<Integer, List<String>> entery = iterator.next();
			int key = entery.getKey();
			List<String> values = entery.getValue();
			System.out.print(key+":");
			for(int i = 0 ; i<values.size() ; i++){
				System.out.print(values.get(i)+"#");
			}
			System.out.println(" ");
			System.out.println("==============================================");
		}
		System.out.println("-----------over");
	}