I. New projects and modules
Steps:
1. Create a new project because the MAVEN management jar package is very convenient, so create a MAVEN project: New Project->maven-> (Create from archetype not checked)->next-fill in
GroupId:Com.multiplemoduleprojectdemo
Artifactid:Project
Version:1.0-snapshot
->project Name:multiplemoduleprojectdemo
2. Delete unnecessary folders (SRC, target)
3. In the project to create a new module, continue to select the Maven module, this time check create form archetype, select Maven-archetype-webapp,next-> fill Artifactid for the Web( Groupid/version and project consistency)->next-module Name:web
4. Continue creating a new Maven module without checking the Create form Archetype,artifactid:service Module Name:service
5. There are currently two projects under project
Second, the correlation module
How to associate a module? For example, the Web is the final module of the run, which is a Web project that needs to refer to the Service module's methods, classes, and so on.
Steps:
1. Open the module settings and right-click Web Project->open Module Settings
2. Configuring a Dependent service project
3. Note that the above dependencies only ensure that the project can be compiled correctly, that it cannot run successfully, and that it needs to configure MAVEN package dependencies
Third, new test class
1. Create a new class in the Java directory of the Service project and find no prompt, you need to first mark the Java folder as SourceRoot
2. New package Com.service, build class in Package Message.java
Package com.service;
public class Message {
public static string Show (String msg) {
String s = "Hello" +msg;
System.out.println (s);
return s;
}
}
3. Create a new JSP page in the Web module reference this kind of test
Find no Java folder, create new folder and mark as source Root
New Package Com.web, package-built class Callmessage.java
Package com.web;
Import Com.service.Message;
public class Callmessage {
Public String Show () {
Return Message.show ("world!");
}
}
4. Modify the Index.jsp page as follows:
<%@ page contenttype= "Text/html;charset=utf-8" language= "java"%>
<%@ page import= "Com.web.CallMessage"%>
<title>index</title>
<body>
<div>
<%=new callmessage (). Show ()%>
</div>
</body>Iv. Adding a running environment
V. MAVEN Configuration JAR Package
In the Open folder: Shift-Right-click in the space, choose here to open the Command window, enter the command mvn clean install, return
Vi.. Operation
Using IntelliJ idea to build a multi-maven module Java project
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