1.方法一：
public static String txt2String(File file){
13 String result = "";
14 try{
15 BufferedReader br = new BufferedReader(new FileReader(file));//构造一个BufferedReader类来读取文件
16 String s = null;
17 while((s = br.readLine())!=null){//使用readLine方法，一次读一行
18 result = result + "\n" +s;
19 }
20 br.close();
21 }catch(Exception e){
22 e.printStackTrace();
23 }
24 return result;
25 }
26
27 public static void main(String[] args){
28 File file = new File("D:/luceneData/test1.txt");
29 System.out.println(txt2String(file));
30 }
2.方法二：
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";
readTxtFile(filePath);
}