Android: Requesting root access in your app
转帖：http://www.stealthcopter.com/blog/2010/01/android-requesting-root-access-in-your-app/
This snippet shows how root access can be requested inside an application in order to write a file into a place we do not have permission to access usually. Requesting root access will only work if your phone allows it, or it has been ‘rooted’ (hacked to allow superuser permissions).
view plaincopy to clipboardprint?
Process p;
try {
// Preform su to get root privledges
p = Runtime.getRuntime().exec("su");
// Attempt to write a file to a root-only
DataOutputStream os = new DataOutputStream(p.getOutputStream());
os.writeBytes("echo \"Do I have root?\" >/system/sd/temporary.txt\n");
// Close the terminal
os.writeBytes("exit\n");
os.flush();
try {
p.waitFor();
if (p.exitValue() != 255) {
// TODO Code to run on success
toastMessage("root");
}
else {
&nb
相关文档：
ASP.NET如何连接Access或SQL Server数据库
首先看一个例子代码片断:
程序代码:
--------------------------------------------------------------------------------
using System.Data;
using System.Data.OleDb;
......
string strConnection="Provider=Microsoft.Jet.OleDb.4.0;";
strConnection+ ......
http://www.tongyi.net/article/20031101/200311013786.shtml
所谓的数据传输，其实是指SQLServer访问Access、Excel间的数据。
为什么要考虑到这个问题呢？
由于历史的原因，客户以前的数据很多都是在存入在文本数据库中，如Acess、Excel、Foxpro。现在系统升级及数据库服务器如SQLServer、ORACLE后，经常需要访问文本数 ......
新建表：
create table [表名]
(
[自动编号字段] int IDENTITY (1,1) PRIMARY KEY ,
[字段1] nVarChar(50) default '默认值' null ,
[字段2] ntext null ,
[字段3] datetime,
[字段4] money null ,
[字段5] int default 0,
[字段6] Decimal (12,4) default 0,
[字段7] image null ,
)
删除表：
Drop table [表 ......
今天谈两个ASP运行时可能出现的与IIS有关的错误
-------------------------------------------------------------------
错误类型一：
Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC Microsoft Access Driver] 不能更新。数据库或对象为只读。
错误类型二：
Microsoft OLE DB Provider ......
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;
using Microsoft.Win32;
using Access = Microsoft.Office.Interop.Access;
namespace ImageAccess
{
static class Program
{
......
