18.6.1 缓冲输入文件

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下边是一个缓冲输入文件的示例, 先创建用于读取unicode流的FileReader, 为了能用缓冲批量的读入, 需要用BufferedReader包装后使用.

package com.cnsuning.file;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;public class BufferInputFile {public BufferInputFile() {// TODO Auto-generated constructor stub}public static String read(String fileName) {return read(new File(fileName));}public static String read(File inputFile) {try {FileReader fReader = new FileReader(inputFile);BufferedReader bReader = new BufferedReader(fReader);StringBuilder sb = new StringBuilder();String line = "";while (null != (line = bReader.readLine())) {sb.append(line + "\n");}bReader.close();return sb.toString();} catch (FileNotFoundException e) {throw new RuntimeException(e);} catch (IOException e) {throw new RuntimeException(e);}}public static void main(String[] args) {System.out.println(read("D:\\work\\会员账户管理\\sales_svn.txt"));}}

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