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();
        }
    }
}