package com.hz.weep;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

/**
 * 读取文件内容演示类.
 * @author weep
 *
 */
public class FileReaderDemo {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		//读取行,临时存值.
		String line = null;
		//记录行号.
		int lineNumber = 0;
		//装入文件全部内容的builder.
		StringBuilder result = new StringBuilder();
		//不解释了- -.
		BufferedReader br = null;

		try {
			br = new BufferedReader(new FileReader("d:\\a.txt"));
			//循环取出行.
			while ((line = br.readLine()) != null) {
				//拼装行到最后结果 new String(line.getBytes(),"utf-8")这句是要点,把你读取过来的内容按照UTF-8重新编码.
				result.append(++lineNumber).append(new String(line.getBytes(),"utf-8")).append("\n");
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			//关闭BufferedReader *重要
			if (br != null) {
				try {
					br.close();
				} catch (IOException e) {
				}
			}
		}
		//打印最后结果到控制台.
		System.out.println(result.toString());
	}

}