MD5加密（密码加密）

来源：互联网发布：原生js display 编辑：程序博客网时间：2024/04/29 17:39

上篇文章http://blog.csdn.net/aierjun/article/details/52447529 图片三级缓存中的MD5加密就是这个

MD5Util

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
* Created by Administrator on 2016/9/6.
*/
public class MD5Utils {
private static final String YAN="isgu&*%>qq:378592175(&378592175@qq.com)";

public static String encode(String password){
try {
password=YAN+password;
StringBuffer sb=new StringBuffer();
MessageDigest digest=MessageDigest.getInstance("md5");
byte[] bytes=digest.digest(password.getBytes());
for (byte b:bytes){
int n=b&0XFF;
String s=Integer.toHexString(n);
if (s.length()==1){
sb.append("0"+s);
}else {
sb.append(s);
}
}
return sb.toString();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return null;
}
}

TestMain

import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.aierjun.essay.R;

/**
* Created by Administrator on 2016/9/6.
*/
public class TestActivity extends Activity{
private EditText userName;
private EditText passWd;
private TextView login;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
findView();
initView();
saveToback();
}

private void findView() {
userName= (EditText) findViewById(R.id.username_login);
passWd= (EditText) findViewById(R.id.passwd_login);
login= (TextView) findViewById(R.id.login_login);
}

private void initView() {
login.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction()==MotionEvent.ACTION_DOWN){
String pw=passWd.getText().toString();
String encodePwd=MD5Utils.encode(pw);
SharedPreferences userInfo=getSharedPreferences("user_info",0);
userInfo.edit().putString("name",userName.getText().toString()).commit();
userInfo.edit().putString("passwd",encodePwd).commit();
}
else if (event.getAction()==MotionEvent.ACTION_UP){

}
return false;
}
});
}
private void saveToback(){
SharedPreferences userInfo=getSharedPreferences("user_info",0);
String name=userInfo.getString("name","");
String pass=userInfo.getString("passwd","");
userName.setText(name);
passWd.setText(pass);
}
}

注意最后的回显，显示的是加密后的内容

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