Development-time Best Practices"
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{{ZKDevelopersReferencePageHeader}} | {{ZKDevelopersReferencePageHeader}} | ||
| + | __TOC__ | ||
| + | There are several settings below we recommend you to specify during development time that can improve your developer experience. They can show you more debugging information and disable various caches to get the latest change without restarting a server. | ||
| − | + | = Disable Browser Cache = | |
| − | + | Since you change pages and codes frequently during development, in order to see the latest change, it's better to disable the browser cache. | |
| − | |||
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</source> | </source> | ||
| − | = | + | = Reloading Modified Java Class without Restarting a Server = |
| − | Running your application with [ | + | Running your application with [https://github.com/TravaOpenJDK/trava-jdk-11-dcevm TravaOpenJDK11] with hot-swap supported JDK can achieve it. Run it with JVM option <code>-XX:HotswapAgent</code>. When you modify your java code, re-compile it, the JDK can automatically reload(hot-swap) the new class file that saves the time of restarting an application server. |
| + | |||
| + | = Use a Server without Packaging and Deploying WAR= | ||
| + | Configure [https://wiki.eclipse.org/Jetty/Feature/Jetty_Maven_Plugin Jetty maven plugin] in a <code>pom.xml</code> can start your project in a few seconds which speeds up the iteration of writing code and testing. | ||
| + | <syntaxhighlight lang='xml> | ||
| + | <build> | ||
| + | <plugins> | ||
| + | <!-- Run with Jetty --> | ||
| + | <plugin> | ||
| + | <groupId>org.eclipse.jetty</groupId> | ||
| + | <artifactId>jetty-maven-plugin</artifactId> | ||
| + | <version>9.4.27.v20200227</version> | ||
| + | </plugin> | ||
| + | </plugins> | ||
| + | </build> | ||
| + | </syntaxhighlight> | ||
= Spring Boot = | = Spring Boot = | ||
Latest revision as of 07:40, 9 June 2022
There are several settings below we recommend you to specify during development time that can improve your developer experience. They can show you more debugging information and disable various caches to get the latest change without restarting a server.
Disable Browser Cache
Since you change pages and codes frequently during development, in order to see the latest change, it's better to disable the browser cache.
Separate zk.xml for Development
Put these development-time settings in a separate file, so that you can easily remove it for production in the future.
zk.xml
<library-property>
<name>org.zkoss.zk.config.path</name>
<value>/WEB-INF/zk-dev.xml</value>
</library-property>
zk-dev.xml
<system-config>
<disable-zscript>false</disable-zscript>
</system-config>
<!-- show debug information -->
<client-config>
<debug-js>true</debug-js>
</client-config>
<library-property>
<name>org.zkoss.zk.ui.versionInfo.enabled</name>
<value>true</value>
</library-property>
<!-- disable various caches -->
<library-property>
<name>org.zkoss.zk.ZUML.cache </name>
<value>false</value>
</library-property>
<library-property>
<name>org.zkoss.zk.WPD.cache</name>
<value>false</value>
</library-property>
<library-property>
<name>org.zkoss.zk.WCS.cache</name>
<value>false</value>
</library-property>
<library-property>
<name>org.zkoss.web.classWebResource.cache</name>
<value>false</value>
</library-property>
<library-property>
<name>org.zkoss.util.label.cache</name>
<value>false</value>
</library-property>
Reloading Modified Java Class without Restarting a Server
Running your application with TravaOpenJDK11 with hot-swap supported JDK can achieve it. Run it with JVM option -XX:HotswapAgent. When you modify your java code, re-compile it, the JDK can automatically reload(hot-swap) the new class file that saves the time of restarting an application server.
Use a Server without Packaging and Deploying WAR
Configure Jetty maven plugin in a pom.xml can start your project in a few seconds which speeds up the iteration of writing code and testing.
<build>
<plugins>
<!-- Run with Jetty -->
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.4.27.v20200227</version>
</plugin>
</plugins>
</build>
Spring Boot
With Spring Boot, please reference this development config.