Java JNDI Practical Guide: Building Efficient Java Applications Step by Step

Create a WebSocket server endpoint to define the path using @ServerEndpoint, and handle connections, message reception, closing and errors through @OnOpen, @OnMessage, @OnClose and @OnError; 2. Ensure that javax.websocket-api dependencies are introduced during deployment and automatically registered by the container; 3. The Java client obtains WebSocketContainer through the ContainerProvider, calls connectToServer to connect to the server, and receives messages using @ClientEndpoint annotation class; 4. Use the Session getBasicRe

Using SLF4J combined with Logback or Log4j2 is the recommended way to configure logs in Java applications. It introduces API and implementation libraries by adding corresponding Maven dependencies; 2. Get the logger through the LoggerFactory of SLF4J in the code, and write decoupled and efficient log code using parameterized logging methods; 3. Define log output format, level, target (console, file) and package level log control through logback.xml or log4j2.xml configuration files; 4. Optionally enable the configuration file scanning function to achieve dynamic adjustment of log level, and SpringBoot can also be managed through Actuator endpoints; 5. Follow best practices, including

PrepareyourapplicationbyusingMavenorGradletobuildaJARorWARfile,externalizingconfiguration.2.Chooseadeploymentenvironment:runonbaremetal/VMwithjava-jarandsystemd,deployWARonTomcat,containerizewithDocker,orusecloudplatformslikeHeroku.3.Optionally,setup

To effectively protect phpMyAdmin, multiple layers of security measures must be taken. 1. Restrict access through IP, only trusted IP connections are allowed; 2. Modify the default URL path to a name that is not easy to guess; 3. Use strong passwords and create a dedicated MySQL user with minimized permissions, and it is recommended to enable two-factor authentication; 4. Keep the phpMyAdmin version up to fix known vulnerabilities; 5. Strengthen the web server and PHP configuration, disable dangerous functions and restrict file execution; 6. Force HTTPS to encrypt communication to prevent credential leakage; 7. Disable phpMyAdmin when not in use or increase HTTP basic authentication; 8. Regularly monitor logs and configure fail2ban to defend against brute force cracking; 9. Delete setup and

EnsureAutoFillisenabledbychecking"Enablefillhandleandcelldrag-and-drop"inFile>Options>Advanced;2.Correctlyusethefillhandle—thesmallsquareatthebottom-rightoftheselectedcell—draggingwiththeblackpluscursor,notthewhitearrow;3.Unmergecells

Ifyousee"YouarenotusingadisplayattachedtoanNVIDIAGPU,"ensureyourmonitorisconnectedtotheNVIDIAGPUport,configuredisplaysettingsinNVIDIAControlPanel,updatedriversusingDDUandcleaninstall,andsettheprimaryGPUtodiscreteinBIOS/UEFI.Restartaftereach

TheassertkeywordinJavaisusedtovalidateassumptionsduringdevelopment,throwinganAssertionErroriftheconditionisfalse.2.Ithastwoforms:assertcondition;andassertcondition:message;withthelatterprovidingacustomerrormessage.3.Assertionsaredisabledbydefaultandm

XSLT parameters are a key mechanism for dynamic conversion through external passing values. 1. Use declared parameters and set default values; 2. Pass the actual value from application code (such as C#) through interfaces such as XsltArgumentList; 3. Control conditional processing, localization, data filtering or output format through $paramName reference parameters in the template; 4. Best practices include using meaningful names, providing default values, grouping related parameters, and performing value verification. The rational use of parameters can make XSLT style sheets highly reusable and maintainable, and the same style sheets can produce diversified output results based on different inputs.