package cn.edu.dlut.wisdom;
import java.io.*;
import java.util.*;
public class FileAccess {
public static String readAllText(String fileName) throws IOException {
StringBuffer sb = new StringBuffer();
char[] buf = new char[1024];
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName)));
while(br.read(buf) != -1) {
sb.append(buf);
}
return sb.toString();
}
public static String readAllText(String fileName, String encode) throws IOException {
StringBuffer sb = new StringBuffer();
char[] buf = new char[1024];
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName), encode));
while(br.read(buf) != 0) {
sb.append(buf);
}
return sb.toString();
}
public static String[] readAllLines(String fileName) throws IOException {
ArrayList<String> lines = new ArrayList<String>();
String s;
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName)));
while ((s = br.readLine()) != null)
lines.add(s);
br.close();
return lines.toArray(new String[]{});
}
public static String[] readAllLines(String fileName, String encode) throws IOException {
ArrayList<String> lines = new ArrayList<String>();
String s;
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName), encode));
while ((s = br.readLine()) != null)
lines.add(s);
br.close();
return lines.toArray(new String[]{});
}
public static void writeAllText(String fileName, String text) throws FileNotFoundException {
PrintWriter pw = new PrintWriter(new FileOutputStream(fileName));
pw.print(text);
pw.flush();
pw.close();
}
public static void writeAllText(String fileName, String encode, String text) throws FileNotFoundException, UnsupportedEncodingException {
PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(fileName), encode));
pw.print(text);
pw.flush();
pw.close();
}
public static void writeAllLines(String fileName, String[] lines) throws FileNotFoundException {
PrintWriter pw = new PrintWriter(new FileOutputStream(fileName));
for(String s : lines)
pw.println(s);
pw.flush();
pw.close();
}
public static void writeAllLines(String fileName, String encode, String[] lines) throws FileNotFoundException, UnsupportedEncodingException {
PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(fileName), encode));
for(String s : lines)
pw.println(s);
pw.flush();
pw.close();
}
public static void writeObject(String fileName, Serializable ob) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(fileName));
oos.writeObject(ob);
oos.flush();
oos.close();
}
public static Object readObject(String fileName) throws IOException, ClassNotFoundException {
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fileName));
Object ob = ois.readObject();
ois.close();
return ob;
}
}
转自：http://java.chinaitlab.com/advance/815440.html
