java 将字符串、list 写入到文件，并读取内容

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStreamWriter;
import java.io.StreamCorruptedException;
import java.io.UnsupportedEncodingException;
import java.util.List;

import android.graphics.Bitmap;

public class FileUtils {

	/**
	 * 字符流写入字符串到txt
	 */
	@SuppressWarnings("resource")
	public static void FileString(String path, String data) {
		try {
			FileWriter writer = new FileWriter(path);// 字符流
			writer.write(data);
			writer.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 字节输出到txt
	 * 
	 * @param path
	 * @param data
	 */
	@SuppressWarnings("resource")
	public static void FileString2(String path, String data) {
		try {
			FileOutputStream outputStream = new FileOutputStream(path);// 字节流
			outputStream.write(data.getBytes());
			outputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 设置编码格式写出到txt
	 * 
	 * @param path
	 * @param data
	 */
	public static void FileString3(String path, String data) {
		try {
			OutputStreamWriter writer = new OutputStreamWriter(new FileOutputStream(path), "UTF-8");// 设置编码格式
			writer.write(data);
			writer.close();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 追加写入到txt
	 * 
	 * @param path
	 * @param data
	 */
	@SuppressWarnings("resource")
	public static void FileString4(String path, String data) {
		try {
			FileOutputStream outputStream = new FileOutputStream(path, true);// 追加写入
			outputStream.write(("\r\n" + data).getBytes());
			outputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 存储list到文件
	 * 
	 * @param path
	 * @param list
	 */
	@SuppressWarnings("resource")
	public static  void FileWriteList1(String path, List list) {
		try {
			FileOutputStream outputStream = new FileOutputStream(path);
			ObjectOutputStream stream = new ObjectOutputStream(outputStream);
			stream.writeObject(list);
			stream.close();
			outputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 设置编码格式存储list到txt
	 * 
	 * @param path
	 * @param list
	 */

	@SuppressWarnings("resource")
	public static  void FileWriteList(String path, List list) {
		try {
			BufferedWriter bufferedWriter = new BufferedWriter(
					new OutputStreamWriter(new FileOutputStream(path), "UTF-8"));
			for (T s : list) {
				bufferedWriter.write(s.toString());
				bufferedWriter.newLine();
				bufferedWriter.flush();
			}
			bufferedWriter.close();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * bitmap 写入到本地
	 * 
	 * @param path
	 * @param bitmap
	 */
	@SuppressWarnings("resource")
	public static void FileBitmap(String path, Bitmap bitmap) {
		try {
			FileOutputStream outputStream = new FileOutputStream(path);
			bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
			outputStream.flush();
			outputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 读取本地文件数据设置指定编码
	 * 
	 * @param path
	 */
	@SuppressWarnings("resource")
	public static String FileInputString(String path) {
		StringBuffer buffer = new StringBuffer();
		try {
			BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(path), "UTF-8"));
			String data = null;
			while ((data = reader.readLine()) != null) {
				buffer.append(data + "\r\n");
			}
			reader.close();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return buffer.toString();
	}

	/**
	 * 根据字节读取文件
	 * 
	 * @param path
	 * @return
	 */
	@SuppressWarnings("resource")
	public static String FileInputString2(String path) {
		StringBuffer buffer = new StringBuffer();
		try {
			FileInputStream inputStream = new FileInputStream(path);
			byte[] bytes = new byte[1024];
			int bytead = 0;
			while ((bytead = inputStream.read(bytes)) != -1) {
				buffer.append(new String(bytes, 0, bytead));
			}
			inputStream.close();

		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return buffer.toString();
	}

	/**
	 * 获取本地文件中的list
	 * 
	 * @param path
	 */

	@SuppressWarnings("resource")
	public static  void FileInputList(String path) {
		try {
			FileInputStream inputStream = new FileInputStream(path);
			ObjectInputStream stream = new ObjectInputStream(inputStream);
			List list = (List) stream.readObject();
			inputStream.close();
			stream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (StreamCorruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	/**
	 * 高效读取指定编码格式的文件
	 * @param path
	 * @return
	 */
	@SuppressWarnings("resource")
	public static String FileInput3(String path) {
		StringBuffer buffer = new StringBuffer();
		try {
			BufferedReader bufferedReader = new BufferedReader(
					new InputStreamReader(new FileInputStream(path), "UTF-8"));
			String data = null;
			while ((data = bufferedReader.readLine()) != null) {
				buffer.append(data+"\r\n");
			}
           bufferedReader.close();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return buffer.toString();
	}
}