Android 处理txt文件类FileUtils 利用java反射机制访问非sdk类和函数

核心提示：*/public static void createText(final String path) {File filename ;try {filename = new File(path);if (!filename.exists()) {filename.createNewFile();}} catch (IO

*/

public static void createText(final String path) {

File filename ;

try {

filename = new File(path);

if (!filename.exists()) {

filename.createNewFile();

}

} catch (IOException e) {

e.printStackTrace();

}

}// end method createText()

/**

* 删除Text文件

* @param path

*/

public void deleteText(String path) {

try {

RandomAccessFile file = new RandomAccessFile(path, "rw");

file.setLength(0);

} catch (IOException e) {

e.printStackTrace();

}

}

/**

* 读取text内容

* @param path

* @return

*/

public static String readText(String path) {

FileReader fileread;

File filename = new File(path);

String line = null;

try {

fileread = new FileReader(filename);

BufferedReader bfr = new BufferedReader(fileread);

try {

line = bfr.readLine();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return line;

}// end method readText()

/**

* 向Text文件中写入内容

* @param body

* @param path

*/

public static void writeText(String content, String path) {

// 先读取原有文件内容，然后进行写入操作

RandomAccessFile mm = null;

File filename = new File(path);

try {

mm = new RandomAccessFile(filename, "rw");

mm.writeBytes(content);

} catch (IOException e1) {

// TODO 自动生成 catch 块

e1.printStackTrace();

} finally {

if (mm != null) {

try {

mm.close();

} catch (IOException e2) {

// TODO 自动生成 catch 块

e2.printStackTrace();

}

}

}

}// end method writeText()

}