![]() ![]() Pick your desired Java, target environment and operating system. You can be pretty productive without it.īut be it HotSwap or JRebel – you must make sure you don’t redeploy to reflect changes. Open Help > JRebel > Configuration > Startup. While it’s a great product, I wouldn’t say it’s a must. They have created a very good product that is an improved HotSwap – it can swap structural changes as well. Following the installation, you probably won’t have a license yet. Opening it for the first time may ask you. So you can develop web applications with Java almost as quickly as with any scripting language.įinally, I must mention one product with a slogan “Stop redeploying in Java” – JRebel. To install JRebel for Eclipse, open Help > Eclipse Marketplace. ![]() But that works perfectly fine – JSPs are refreshed by the servlet container (unless you are in production mode), and each view technology has an option for picking template files dynamically. To enable the JRebel Agent for the container that the application is deployed to, you need to add a -agentpath parameter to the JVM arguments list. You just can’t live without “save & refresh” there. But that, again, seems quite an ordinary scenario – your app can’t just load its bootstrapping configuration while running.Įven more common is the case with html & css changes. You can’t hotswap configuration as well – your application is usually configured in some (.xml) file, so if you change it, you’d have to redeploy. 1 Answer Sorted by: 4 If you start the server from the IDE, you do not need to write your own script to start the container with JRebel. It skips the rebuild, restart, and redeploy cycle common in Java development. Structural changes are more rare, and in some cases mean the whole application has to be re-initialized anyway. JRebel is a productivity tool that allows developers to reload code changes instantly. ![]() But “save & refresh” usually involves simply changing a line within a method. Maven plugin Gradle plugin Does JRebel work with Check whether JRebel works with your IDE, server and frameworks. If you add a new class, new method, change the method arguments, add fields, add annotations, these can’t be swapped at runtime. Project Configuration How to configure your rebel.xml. I’ve made a more extensive description of how to use them in this stackoverflow answer.
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