Spring MVC Maven模块 [英] Spring MVC Maven Modules
问题描述
假设我想要3个maven模块：
Let's say that I want to have 3 maven modules:
- parent
- login
- webapp
我想拥有Java类和&两个模块中的jsp文件（登录和webapp）。我的解决方法部分工作，它构建一个WAR文件，网页呈现，看起来很好，但当我尝试在webapp模块中使用API（登录模块的接口）时 - 无法找到类。我认为POM文件出了问题。
I want to have Java classes & jsp files in both modules (login & webapp). My workaround partially works, it builds one WAR file, web pages are rendered, looks fine, but when I try to use API (interfaces from login module) in webapp module - classes can not be found. I think that something is wrong with POM files.
POM几乎相同，登录和放大之间的主要区别是webapp poms - webapp依赖登录。
POMs are almost the same, the main difference between login & webapp poms - that webapp has dependency with login.
来自webapp模块的POM源：
POM source from webapp module:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>webapp</artifactId>
<name>mano-webapp</name>
<packaging>war</packaging>
<properties>
<java-version>1.6</java-version>
<org.springframework-version>3.1.1.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- AspectJ -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<scope>runtime</scope>
</dependency>
<!-- @Inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.beta.test</groupId>
<artifactId>mod-login</artifactId>
<version>0.0.1-SNAPSHOT</version>
<type>war</type>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
<additionalBuildcommands>
<buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
</additionalBuildcommands>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>org.test.int1.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
<parent>
<groupId>com.beta.test</groupId>
<artifactId>parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent</relativePath>
</parent>
</project>
推荐答案
按照你的描述你应该考虑maven叠加。
By what you described you should consider maven overlays.
WAR文件的叠加，只是一个Maven项目，它使用另一个
项目的WAR输出作为依赖项，而不是项目的JAR。
构建覆盖项目时，底层项目的WAR文件
将被展开，并且覆盖项目中的文件会被添加到其中。如果一个
覆盖项目的文件路径和名称与
中的文件相同，那么它将取代它。
An overlay of a WAR file, is simply a Maven project that uses another project's WAR output as a dependency, rather than a project's JAR. When the overlay project is built, the underlying project's WAR file is exploded and files in the overlay project added to it. If an overlay project has a file with the same path and name as a file in the underlying WAR it will replace it.
您将以与现在相同的方式包含来自一个模块的war，并覆盖当前模块中的文件（类或静态资源）。 博客解释更多内容，以及分步指南。
You would include the war from one module in the same way as you do now, and override the files (either classes or static resources) in your current module. A blog that explains more, and a step-by-step guide.
这篇关于Spring MVC Maven模块的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
