Use Jrebel for Project hot deployment in Eclipse (Maven plug-in version)

JRebel Implementing a Project Hot Deployment (Maven plugin version)

Hot Deployment , is to not restart the application during operation, can be directly software upgrades.

During the development process, a hot deployment is the code that changes as the project runs, and the code takes effect without restarting the server.

Tomcat can make a project hot deployment, but It cannot be hot-deployed when adding methods or method name changes to a class, and requires restarting the server , causing Waste a lot of development time waiting for the project to restart , through the JRebel can achieve most of the project code changes can be For hot deployment .

Before installing the Jrebel plug- in, it is recommended that the Maven jar central repository ( the default is foreign, download slower ) into the domestic, It is recommended to set up the central warehouse of Ali.

Maven Central Warehouse replacement steps:

① changing the Maven configuration file

② setting up the Maven configuration file to Eclipse

1. Locate the local maven installation path and open the conf/under the local MAVEN installation path Settings.xml:

2. Add the following image parameters to the <mirrors></mirrors> tab and Save:

<Mirror>    <ID>Alimaven</ID>    <name>Aliyun maven</name>    <URL>http://maven.aliyun.com/nexus/content/groups/public/</URL>    <mirrorof>Central</mirrorof>        </Mirror>

3. Open the eclipse-->window-->preferences and find the User under Maven Settings:

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Installing the JRebel plugin in Eclipse :

wait for the installation to complete and restart Eclipse when it pops up dialog box Click OK, wait for automatic restart of Eclipse , the plug-in installation is complete.

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When I developed the Tomcat that was used to run the project was Maven's tomcat plugin, so I needed to add Maven's Tomcat plugin, through maven 's Tomcat plug-in running projects want to use JRebel need to add Maven of the JRebel plugins.

Maven 's tomcat plugin with JRebel setup steps:

1. in the pom.xml <build></build> tab under the <plugins> Add the tomcat plugin and jrebel plugin to the tag:

Here is the plugin code:

<!--Maven's Tomcat component, running the project through the MAVEN command Tomcat7:run -<plugin> 　　 <groupId>Org.apache.tomcat.maven</groupId> 　　 <Artifactid>Tomcat7-maven-plugin</Artifactid> 　　 <version>2.2</version> 　　 <Configuration> 　　　　 <Port>8080</Port> 　　　　 <Path>/irritability</Path> 　　 </Configuration></plugin><!--Jrebel Hot Deployment Plugin -<plugin> 　　 <groupId>Org.zeroturnaround</groupId> 　　 <Artifactid>Jrebel-maven-plugin</Artifactid> 　　 <version>1.1.8</version> 　　 <executions> 　　　　 <Execution> 　　　　 <ID>Generate-rebel-xml</ID> 　　　　 <Phase>Process-resources</Phase> 　　　　 <Goals> 　　　　　　 <goal>Generate</goal> 　　　　 </Goals> 　　　　 </Execution> 　　 </executions></plugin>

2. Select the item and right-click -->jrebel-->enable JRebel will be in the project src/main/resources The rebel.xml configuration file is automatically generated in the directory:

3. Select Item Right click -->run as-->maven build ...:

follow the steps in the diagram to set up and click The Run button runs the project:

Running results: If the Jrebel plugin is successful, then Tomcat starts :

When you save your code after you start to rename a method within a project, JRebel automatically detects code changes and recompile the file that changed the code, and the console prints the information:

Use Jrebel for Project hot deployment in Eclipse (Maven plug-in version)