js| Verification Code | Chinese
//Generate random color Color Getrandcolor (Random Random, int FC, int BC) { if (FC gt; 255) FC = 255; if (BC gt; 255) BC = 255; int r = FC + Random.nextint (BC-FC); int g = FC + Random.nexti
(Getrandcolor (160, 200));
Generating random classes
Random random = new random ();
for (int i = 0; i int x2 = random.nextint (width);
int y2 = random.nextint (height);
int x3 = Random.nextint (12);
int y3 = Random.nextint (12);
G.drawline (x2, y2, x2 + x3, y2 + y3);
}
Display the authentication code to the image
G.setcolor (New Color (+ random.nextint), + random
. Nextint (+), + random.nextint (110));
g.DrawString (S, 2, 16);
Image effective
G.dispose ();
Output image to Page
Imageio.write
public class Authimageservlet extends HttpServlet
{
private static final String Content_Type = "text/html; charset=gb2312 ";
Set the size and size of letters
Private font mfont = new Font ("Times New Roman", Font.plain, 17);
public void Init () throws Servletexception
{
Super.init ();
}
Color getrandcolor (int fc,int BC)
{
Random random = new random ();
if (fc>255) fc
in 2007, with further integration of security and high-speed. Virtual Tape library partitions and some of the data's special protection methods (worm capabilities) meet the specific needs of some confidential data resources.
8GB FC Heat is not enough
Although 8G FC products will be available before the end of 2007, but because of the high cost, distance constraints and the lack of clear IP requirements,
When working with database transactions, some operations can produce errors, and errors can result in unpredictable operations, especially in bulk transactions. In order to avoid this situation, it is necessary to control the data connection and handle the error information in the database transaction accordingly. 1. Database error message let's look at the error message of the database first. Here, using an Access file dbcon.accdb as the target database, in the collector, create a new ODBC da
Fifth Chapter,Create a databaseOracle after logging in, the user executes DBCA and displays the following interface to begin creating the database. 650) this.width=650; "src=" http://s2.51cto.com/wyfs02/M02/79/FC/wKioL1agP7CDc19HAACqybbOaIQ854.jpg "style=" float: none; "title=" 1.jpg "alt=" Wkiol1agp7cdc19haacqybboaiq854.jpg "/>Select Create cluster database and click Next.650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/79/FD/wKiom1agP3TQKR
/BCM57712 10/100/1000/2500/10000 Mbps PCIE Ethernet Network Controller. -cnic driver that supports additional features required by the bnx2i iSCSI offload driver, and bnx2fc FCoE offload driver. limitations =========== The current versions of the drivers have been tested on 2.4.x kernels startingfrom 2.4.24 and all 2.6.x kernels. the driver may not compile on kernelsolder than 2.4.24. testing is concentrated on i386 and x86_64 ubuntures. only limited
With the explosive growth of data traffic, the construction standards of data centers are constantly improving. Obviously, common switches cannot meet the needs of data centers, the data center switch has high capacity, large cache, virtualization, layer-2 TRILL and other technical features to meet your needs. What key parameters should a data center switch have?
Port line rate forwarding:The current data center switch, port line rate Forwarding is the most basic requirement, the new backplane
processing process, and then use the route feature to guide I/O requests to the next stage.
First, the discovery component of the controller uses getqueueinfo to obtain the io header stage (for example, the Network header or the smb header). Then, the controller can use createqueuerule to create queuing rules, allocate the incoming IO packets to the queues of the stage. Then you can configure the route and speed attributes of the queue.
Note:Forwarding and management between these hierarchical
Sans, or block devices. Involving Iscsi,fibre channel and FCoE agreements.
VMware file systems and data storage:
One of the major structural features of vsphere block storage is the use of VMware File System (VMFS). The same way as a traditional server formats a block device with a file system, Vsphere uses VMFS on a block LUN to store the virtual machines.
The vsphere storage unit is Datastore, which contains one or more concatenated LUNs. In many i
In view of the fact that this blog may have been a bit more obscure, but I feel very useful, so put on my TechNet webcast for this subject course and demo download links for your reference.
Http://technet.microsoft.com/zh-cn/hh763481.aspx
Introduction to SMB
The server Message Block (SMB) protocol is a network file sharing protocol for Microsoft Development practices that allows applications to read and write files and request services from server programs in the computer network.
The SMB pr
= kcu. CONSTRAINT_NAME
Left join [INFORMATION_SCHEMA]. [REFERENTIAL_CONSTRAINTS] fc ON kcu. CONSTRAINT_SCHEMA = fc. CONSTRAINT_SCHEMA
AND kcu. CONSTRAINT_NAME = fc. CONSTRAINT_NAME
Left join [INFORMATION_SCHEMA]. [KEY_COLUMN_USAGE] fkcu ON fkcu. CONSTRAINT_SCHEMA = fc. UNIQUE_CONSTRAINT_SCHEMA
AND fkcu. CONSTRAINT_NAM
Link Address: http://blog.sina.com.cn/s/blog_407a68fc010006qo.html1, altogether need 2 commonly used Java files (Randomcode.java and Randomcodectrl.java): (A,) Randomcode.java is a common Java file, the contents are as follows: Import Java.awt.Color ;Import Java.awt.Font;Import Java.awt.Graphics;Import Java.awt.image.BufferedImage;Import Java.util.Random;Import Javax.imageio.imageio;import javax.servlet.http.HttpServletRequest;Import Javax.servlet.http.HttpServletResponse;Import javax.servlet.ht
.** @ Param request the request send by the client to the server* @ Param response the response send by the server to the client* @ Throws servletexception if an error occurred* @ Throws ioexception if an error occurred*/Public void dopost (httpservletrequest request, httpservletresponse response)Throws servletexception, ioexception {Doget (request, response );}
/*** Obtain random colors in a given range* @ Param FC* @ Param BC* @ Return*/Private colo
practical method to generate reader and writer in a channel.
11. Example code:.....Filechannel fc = new fileoutputstream ("filename. Extend"). getchannel ();FC. wirte (bytebuffer. Wrap ("some text". getbytes ()));FC. Close ();Fc = new randomaccessfile ("data.txt", "RW"). getchannel ();
1 IP Technology Introduction
IP storage involves a range of technologies that enable block-level storage data to be transmitted over an ip-based network, which has two technologies to clarify: the use of IP technology and block-level storage. Block-level storage in the network is not a new technology, today's storage area Network San even if the use of Fibre Channel FC technology industry is still the case. However, the new IP storage protocol allows
Generally we use PHP to output an HTML file, always with $head= "
The class definition file createhtml.class.php is as follows:
//-------------------TcreatehtmlA class that generates a static HTML file from a template fileAuthor: sharetopEmail:ycshowtop@21cn.com//-------------------Define the required work functionsConvention to start with tags End with Mark function Isbegin ($STR) {$pattern = "if (Ereg ($pattern, $STR)) return true;return false;}function Isfinish ($STR) {$pattern = "if (Ereg
the whole filter chain to the original logic, how to do it?3. The changes are as follows:Filterchain.java: Public classFilterchainImplementsfilter{ListNewArraylist(); PublicFilterchain addfilter (Filter f) { This. Filters.add (f); return This; } Publicstring DoFilter (String str) {string R=str; for(Filter f:filters) {R=F.dofilter (R); } returnR; }}Msgprocessor: Public classMsgprocessor {PrivateString msg; PrivateFilterchain FC; Pub
Internet, with no distance restrictions.
Second, FC sans and IP sans
When iSCSI technology emerged, storage networks built over IP technology came into being, and there were two different implementations of San technology, FC Sans and IP sans. Simply put, fibre-built storage networks are FC Sans, and storage networks built with iSCSI technology are called IP s
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