The listener is a very important part of Java Web development, and the knowledge involved can be referenced in the following map:Web Listener1 What is a Web listener?Web listeners are special classes in Servlets that help developers listen to specific events in the Web, such as the creation and destruction of servletcontext,httpsession,servletrequest, the creation, destruction, and modification of variables
The TNS-01201: Listener cannot find executable... error message was recently received when the Listener was started. This error has never been encountered. I really don't know what it is. The following is a detailed description of the error and the solution.
1. fault description# An TNS-01201 error was received when the listener was started, and the
1.su Oracleand start the listener.1.lsnrctl startYou will see the interface to start successfully;1.lsnrctl stopStop the Listener command.1.lsnrctl statusView listener commands.The security of an Oracle database consists of two parts:1. Part of the security of the OS2. Security of the network3.oracle security of the software itselfThe security of the OS depends o
Oracle ora-12541:tns: No Listener
Tags: Oracle DataBase
Today, using the Oracle database, using the Visual connection tool to connect to the database of the test environment prompt no listener, and finally with the help of the teacher finally done! ^ ( ̄︶ ̄) ^
Problem:
ORA-12541:TNS:无监听程序
Workaround:
To check if the listener i
Previously, when the custom adapter is passed to the listview, because the view of the listview is recycled, you must note that when the listview list item contains a status control. Details can be seen before post [url = custom adapter implementation listview with multi-choice box and other status controls note http://www.eoeandroid.com/thread-248749-1-1.htmlLet's talk about this problem because there are two linesCodeProblem caused by the opposite position.
Each view in my listview contains
The speed is too slow click on the optimization, appeared ORA-12514, search the solution record, the first basic service solved.Transferred from: http://apps.hi.baidu.com/share/detail/19115407PS: I do not know, everyone has not like me to toss, I always like to close not always use the service, etc., and then manually start, in addition to frequent replacement of IP addressSystem environment: Windows 2003 Ent R2 CHS 32bit,oracle 11.2.0.1.0 R2The following actions are run by default on the server
I. Connect the host string, said no listener SVRMGRconnectinternaloracle @ orcl; ORA-12541: TNS: nolistenerSVRMGR 2. Run the listener, said the address of the Protocol dedicated component specified incorrect C: lsnrctlLSNRCTLfor32-bitWindows: Version8.1.6.0.0
1. Connection host string, said no listener SVRMGR connect internal/oracle @ orcl; ORA-12541: TNS: no
Oracle's Listener service is registered in two different ways, dynamic and static, respectively. Dynamically registered services are displayed at LSNRCTL status as ready, while static services are unknown.
11g2 the previous version, the listener is configured with a Listener.ora file. In the 11G2 version, the configuration of the listener changes, adding a new pr
Tags: connector simple note explanation Prot is the protocol listener mustIn connection with the database, sometimes encountered a "ORA12514: Listener currently does not recognize the service requested by the connection descriptor" error, which is actually the database dynamic registration (about dynamic registration will be explained later) does not take effect, causing the
Today, I encountered a listener startup problem. The problem was that there was no problem when Oracle was installed on the original machine. After the machine name was changed, the listener could no longer be started.
Today, I encountered a listener startup problem. The problem was that there was no problem when Oracle was installed on the original machine. Afte
Listeners in the JSPWhen a Web program is running on a server, multiple events occur within the program, such as the start and stop of a Web application, the start and destruction of Session sessions, the start and end of user requests, and so on. Sometimes programmers need to do some processing at the time of these events to complete a specific task (e.g. by monitoring the start and end of the session to count the number of online people on the site). In fact, these events can be encoded, and t
Oracle modifies the ip address or host name and re-creates the em and listener
Detailed operations for modifying the ip address and host name of an oracle DatabaseModify ip1. Modify the IP address of the host name in the hosts file.2. restart the server network service network restart3. Delete the original listener emca-deconfig dbcontrol db-repos drop(If you do not remember the sysman password, you can fir
A set of Oracle11g is implemented in the Linux6.2 system, which may be because the operating system is not properly installed. For example, each of the magnetic arrays cannot exceed 2 TB, and the rpm requires x86_64.
A set of Oracle 11 GB is implemented in the Linux6.2 system, which may be because the operating system is not properly installed. For example, each disk of the magnetic array cannot exceed 2 TB, and the rpm requires x86_64.
A set of Oracle 11 GB is implemented in the Linux6.2 s
First case:
When multiple database instances of the Oracle Application correspond to one listener, After configuring the listener and the local net service name, follow these steps:
1. Set the environment variable of oracle_sid (Instance name), for example, "oracle_sid = orcl". You can use "Echo $ oracle_sid" to check whether the setting is successful.
2. log on to the specified Oracle instance orcl thro
When a user interacts with a control such as a command or an operation (gesture), an action event is triggered ). Components that generate action events are also called Action sources, including buttons, hyperlinks, and other components. Action events are handled by Action listeners.
There are two typical listeners: one will affect the navigation between pages, and the other will not affect the navigation. The listener that affects the navigation betw
Getcontextpath here is the root path that the web should be/lession49*/ }Else{chain.dofilter (request, response); }}//settings for configuration filesclass>filter. sessionfilterclass>Iv. servlet ListenerObjects that the servlet listens on:It is responsible for monitoring the life cycle time of ServletContext, HttpSession, ServletRequest objects, and property change events. Used to monitor the occurrence of important events, listen
Oracle listener cannot be started. 1. Connection host string, says no listener
SVRMGR> connect internal/oracle@orcl; ORA-12541: TNS:no listener SVRMGR>
2. Run the listener, indicating that the protocol-specific component of the address is incorrectly specified.
C: \> lsnrctl LSNRCTL for 32-bit Windows: Version 8.1.6.0
This article introduces the P2P programming method and implementation mechanism under C # through a program. Although this program in this article is not very useful, it intuitively provides some basic knowledge and concepts of P2P (point-to-point) programming and set interface programming. It is based on tcplistener and tcpclient, except for corresponding Input and Output Control. The implementation principle is also relatively simple, but the basic principle of returning P2P technology to "non
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