java startup jobs

Public abstract class Smslisteneradapter implements Servletcontextlistener {//Integrated listening interface@Overridepublic abstract void contextinitialized (Servletcontextevent SCE);//This method is to invoke the method@Overridepublic void contextdestroyed (Servletcontextevent sce) {}Import javax.servlet.ServletContextEvent;/*** Created by Panhaicheng on 14-8-20.*/public class Smslistener extends Smslisteneradapter {@Overridepublic void contextinitialized (Servletcontextevent sce) {//Override t

recurrence of similar conflicts, The-XRS parameter is provided starting from jdk1.3.1, and when this parameter is set, the JVM will not receive control handler of the console, that is, he does not monitor and process ctrl_c_event, ctrl_close_event, Ctrl_logoff_event, or Ctrl_shutdown_event event.-xssnSets the size of a single line stacks, which is typically 512k by default.Above these parameters, such as-xmsn,-XMXN ... are important parameters in our performance optimization;-xprof,-xloggc:file

1.NumberFormatException exception, the writing process does not show errors, is handled by RuntimeException exception Public class Gty { publicstaticvoid main (string[] args) { int a=integer.parseint ("123e");} }2. Generate an exception, the following statement does not hold the linepublic class Gty {public static void Main (string[] args) { System.out.println ("start"); int A=integer.parseint ("123e"); int B=integer.parseint ("O"); Except

Flash Builder4.5 startup times wrong: Failed to create the Java Virtual Machine. Reinstalling the Flash Builder4.5 is also no use. Cause: There is not enough memory running Flash Builder4.5. Workaround: Find the installation directory for Flash Builder4.5 C:\Program files\adobe\adobe Flash Builder 4.5 To modify the memory parameters in the Flashbuilder.ini file: -nlZh_cn-startupEclipse/plugins/org.eclipse.e

=32M Reserve the amount of memory the code occupies-XX:THREADSTACKSIZE=512 set the thread stack size, using the system default value if 0-xx:+uselargepages using large page memoryIn the daily performance tuning we will basically use the above properties of the blackbody;Debug parameter list:Parameters and their default value descriptions-xx:-citime print consumption at JIT compile time-xx:errorfile=./hs_err_pidWhen there is a problem with the system, you cannot use an external tracking tool (suc

status command to see, there are two configuration files changed, One is. Classpath, one is. Project, the contents of these two files have changed, and when I restore the two files to their original state, the projects are normal.Although this can be solved, but it is not perfect, because the new people in the future will appear this problem!Finally found a solution, thanks to the original author, reference http://www.yihaomen.com/article/java/471.ht

Recently daughter-in-law is learning Android development, I give her the environment after the good. Download a new eclpse on the Internet, when the start of the error: Failed to create the Java virtural Machine. The reason for the failure to open eclipse is because the creation of the Java Virtual machine failed. Generally in the startup, error, basically in a

Reference: https://github.com/ctripcorp/apollo/wiki/Apollo%E5%BC%80%E5%8F%91%E6%8C%87%E5%8D%97#23-java%E6%A0%B7%E4%BE% 8b%e5%ae%a2%e6%88%b7%e7%ab%af%e5%90%af%e5%8a%a8The premise is to build a local machine environment first: http://www.cnblogs.com/EasonJim/p/7643630.htmlUnzip import Eclipse:The main use is Apollo-demoCreate a new app and profile entry in the configuration center backgroundNote: In the name of the two profiles, the first one is the def

servlet> Servlet-name>Log4jinitservletServlet-name> Servlet-class>Org.springframework.web.util.Log4jConfigServletServlet-class> Load-on-startup>1Load-on-startup> servlet> Flags whether the container loads the servlet when it is started.A value of 0 or greater than 0 o'clock indicates that the container loads the servlet when the app is started;When it is a negative number or is not specifie

This section begins the Java Multithreaded Programming learning, the basic concepts of the operating system, processes, threads are no longer mentioned, just understand Java for multithreaded programming support.First, inherit the thread class to create threadsThe Java language uses the thread class to represent threads, and classes that represent threads can imp

Symptoms of the problem:At work, eclipse crashes, the CPU consumes 99% after starting again, and the status bar always shows initializing Java tooling: (1%). Solution:Delete the \workspace\.metadata\.plugins\org.eclipse.core.resources\.projects directory and re-import the projecthttp://hsys.iteye.com/blog/997195http://forum.spring.io/forum/spring-projects/springsource-tool-suite/95987- Initializing-java-too

This problem occurs because eclipse cannot find the path for Javaw.exe to open the Eclipse.ini file:-startupPlugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar--launcher.libraryplugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20140603-1326-productOrg.eclipse.epp.package.Java.product--launcher.defaultactionOpenFile--launcher. Xxmaxpermsize256M-showsplashOrg.eclipse.platform--launcher. Xxmaxpermsize256m--launcher.defaultactionOpenFile--launcher.appendvmargs-vmargs-dosgi.r

Error when Eclipse is startedThis is a system that is running out of memory allocated to eclipse and needs to modify the Eclipse.ini fileEclipse.ini is a configuration file such as Eclipse memory allocation for memory management of Java virtual machinesMeaning of common parameters-vmargs: Description follows the parameters of the VM-xms40m: Virtual machine occupies the minimum memory of the system-xmx256m: Virtual machine occupies the maximum memory o

Tomcat startup failed: Failed creating Java JVM. dll Failed to start Tomcat 6. error message: [17:20:54] [174JavaThe specified module cannot be found in JNI. C] [Error.[17:20:54] [994 prunsrv. C] [Error] failed creatingJavaD: \ Java \ jre1.6.0 _ 10 \ bin \ Client \JVM. Dll[17:20:54] [1269 prunsrv. C] [Error] servicestart returned The reason is very tangle

Computer: 2G memory, WIN7 32 bits.When you start Adt-bundle-windows-x86-20140702\eclipse\eclipse.exe, the error "Failed to create the Java Virtual machine". After the point is determined, Eclipse automatically shuts downHere's how to fix it:Modify the configuration file "Eclipse.iniadt-bundle-windows-x86-20140702\eclipse\eclipse.ini" under the Eclipse directoryChange the following two values to 0.5 times times the original, then save, and restart ecli

The simplest way to start a use case1 Building XML firstThe XML code is as follows1 2 3 4 5 class name= "Com.net.www.day_jingdong"/> //The class name that needs to be started is modified to its own. registration. Class name 6 7 8 Right-click Run as in XML to start it.2 testng Boot Sequence control12345className= "Com.net.www.day_jingdong" >6789Tenclass> One A -Selenium-java-xml

Processbuilder builder = new Processbuilder (command, parameters, parameters ...) );Process process = Builder.start ();br = new BufferedReader (New InputStreamReader (Process.getinputstream ()));Log information can be read from BRKill process based on IDString OS = System.getproperty ("Os.name");try {if (OS! = null os.startswith ("Windows")) {for (int i = 0; i Runtime.getruntime (). EXEC ("taskkill/f/im" + pid.get (i));}}else{for (int i = 0; i SYSTEM.OUT.PRINTLN ("Shutting down the Linux proces

-805306369.htmlIt probably means there's a problem with the workspace. The error was due to a corrupt workspaceDid not follow the inside said change, found a more effective method:into the work space. Metadata\.plugins directory, find Org.eclipse.core.resourcesRename this file, and then start Eclipse, and discover that it will start, but the previous items in Eclipse Open are missing.And then into the. Metadata\.plugins inside, found that the freshmen became a org.eclipse.core.resources fileClos

Org.apache.catalina.core.ApplicationContext LogInfo: Specify the end of the scheduled task executionI was called by the thread pool to execute! Parameters: 12011-3-31 18:26:56 Org.apache.catalina.core.ApplicationContext LogInfo: Start execution of specified scheduled tasksClaiming to run every 10 seconds Oh! I'm going to call the thread pool to perform another task.I was called by the thread pool to execute! Parameters: 22011-3-31 18:26:56 Org.apache.catalina.core.ApplicationContext LogInfo: Sp

Here's how: Find the Eclipse.ini in the Eclipse directory to see the following:-startupPlugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar--launcher.libraryplugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.0.v20100503-productOrg.eclipse.epp.package.jee.product--launcher.defaultactionOpenFile--launcher. Xxmaxpermsize256M-showsplashOrg.eclipse.platform--launcher. Xxmaxpermsize256m--launcher.defaultactionOpenFile-vmargs-dosgi.requiredjavaversion=1.5-xms40m-xmx512mYou can start eclipse b