import java.io.*;
 
/**
* Created by liguoqing on 2016/3/28.
*/
public class ReadTxtFile {
 
 
public static void readTxt(String filePath) {
 
  try {
    File file = new File(filePath);
    if(file.isFile() && file.exists()) {
      InputStreamReader isr = new InputStreamReader(new FileInputStream(file), "utf-8");
      BufferedReader br = new BufferedReader(isr);
      String lineTxt = null;
      while ((lineTxt = br.readLine()) != null) {
        System.out.println(lineTxt);
      }
      br.close();
    } else {
      System.out.println("文件不存在!");
    }
  } catch (Exception e) {
    System.out.println("文件读取错误!");
  }
 
  }
 
 
  public static void main(String[] args) {
    String filePath = "D:\test\我.txt";
    readTxt(filePath);
  }
 
}

package com.campu; 
 
import java.io.BufferedInputStream; 
import java.io.BufferedReader; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.InputStreamReader; 
import java.io.Reader; 
 
/** 
 * @author 码农小江 
 * H20121012.java 
 * 2012-10-12下午11:40:21 
 */ 
public class H20121012 { 
  /** 
   * 功能：Java读取txt文件的内容 
   * 步骤：1：先获得文件句柄 
   * 2：获得文件句柄当做是输入一个字节码流，需要对这个输入流进行读取 
   * 3：读取到输入流后，需要读取生成字节流 
   * 4：一行一行的输出。readline()。 
   * 备注：需要考虑的是异常情况 
   * @param filePath 
   */ 
  public static void readTxtFile(String filePath){ 
    try { 
        String encoding="GBK"; 
        File file=new File(filePath); 
        if(file.isFile() && file.exists()){ //判断文件是否存在 
          InputStreamReader read = new InputStreamReader( 
          new FileInputStream(file),encoding);//考虑到编码格式 
          BufferedReader bufferedReader = new BufferedReader(read); 
          String lineTxt = null; 
          while((lineTxt = bufferedReader.readLine()) != null){ 
            System.out.println(lineTxt); 
          } 
          read.close(); 
    }else{ 
      System.out.println("找不到指定的文件"); 
    } 
    } catch (Exception e) { 
      System.out.println("读取文件内容出错"); 
      e.printStackTrace(); 
    } 
   
  } 
   
  public static void main(String argv[]){ 
    String filePath = "L:\Apache\htdocs\res\20121012.txt"; 
//   "res/"; 
    readTxtFile(filePath); 
  } 

}