Android读写文件

　2012-07-07 14:27:30　来源：WEB开发网　　　

核心提示：byte [] buffer = new byte[length]; in.read(buffer); res = EncodingUtils.getString(buffer, "UTF-8"); }catch(Exception e){ e

byte [] buffer = new byte[length];

in.read(buffer);

res = EncodingUtils.getString(buffer, "UTF-8");

}catch(Exception e){

e.printStackTrace();

}

三、从sdcard中去读文件，首先要把文件通过\android-sdk-windows\tools\adb.exe把本地计算机上的文件copy到sdcard上去，adb.exe push e:/Y.txt /sdcard/, 不可以用adb.exe push e:\Y.txt \sdcard\同样：把仿真器上的文件copy到本地计算机上用： adb pull ./data/data/com.tt/files/Test.txt e:/

String fileName = "/sdcard/Y.txt";

//也可以用String fileName = "mnt/sdcard/Y.txt";

String res="";

try{

FileInputStream fin = new FileInputStream(fileName);

//FileInputStream fin = openFileInput(fileName);

//用这个就不行了，必须用FileInputStream

int length = fin.available();

byte [] buffer = new byte[length];

fin.read(buffer);

res = EncodingUtils.getString(buffer, "UTF-8");

fin.close();