java_IO流读取本地文件

 package com.ht.util;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.Reader;

 public class IoReader {
     public static void main(String[] args) {
         File fileName = new File("D:/test.txt");
         Reader reader = null;
         char[] tem = new char[1000];
         int chared = 0;
         try {
             //注意编码
             reader = new InputStreamReader(new FileInputStream(fileName),"gb2312");
             while((chared = reader.read(tem)) != -1){
                 // '\r' 判断一行是否结束
                 if((chared == tem.length)&&(tem[tem.length-1] != '\r')){
                     System.out.println(tem);
                 }else{
                     for(int i = 0 ; i < chared;i++){
                         if(tem[i] == '\r'){
                             continue;
                         }else{
                             System.out.print(tem[i]);
                         }
                     }
                 }
             }
             reader.close();
         } catch (FileNotFoundException e) {
             e.printStackTrace();
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 }