文件处理

import android.app.*;

import android.content.*;

import android.content.res.*;

import android.net.*;

import android.os.*;

import android.util.*;

import java.io.*;

import java.security.*;

import java.security.cert.*;

import java.util.*;

import java.util.zip.*;

import javax.security.cert.*;

import java.security.cert.X509Certificate;

import javax.security.cert.CertificateEncodingException;

import javax.crypto.*;

import javax.crypto.spec.*;/*

import org.bouncycastle.jce.provider.*;

import org.bouncycastle.crypto.paddings.*;*/

import java.math.*;

class 文件处理{

public static byte[] 从文件地址输出数据(String url){

byte[] jieguo=null;

try{

FileInputStream fin=new FileInputStream(url);

int length =fin.available();

jieguo=new byte[length];

fin.read(jieguo);

fin.close();

}

catch

(Exception e){

e.printStackTrace();

}

return jieguo;

}

}