问题
I am following this article to understand how to create a Java web application with Spring MVC.I created the web app project CounterWebApp at a separate location first (mvn eclipse:eclipse -Dwtpversion=2.0) and then imported the whole project in Eclipse.
I am having difficulty to put the BaseController.java in the correct package as stated in the article.It's either
"Source folder is not on the Java build class path",OR
BaseController.java is not getting created at the location (/src/main/java/com/mkyong/controller/BaseController.java)
Please help me understand how to do it correctly ? Following are the contents of my .classpath file and pom.xml just after importing the project in eclipse.
.classpath:
<classpath>
<classpathentry kind="src" path="src/main/resources" excluding="**/*.java"/>
<classpathentry kind="output" path="target/classes"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-core/3.2.0.RELEASE/spring-core-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-web/3.2.0.RELEASE/spring-web-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-context/3.2.0.RELEASE/spring-context-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-aop/3.2.0.RELEASE/spring-aop-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/aopalliance/aopalliance/1.0/aopalliance-1.0.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-beans/3.2.0.RELEASE/spring-beans-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-expression/3.2.0.RELEASE/spring-expression-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-webmvc/3.2.0.RELEASE/spring-webmvc-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/junit/junit/4.11/junit-4.11.jar" sourcepath="M2_REPO/junit/junit/4.11/junit-4.11-sources.jar"/>
<classpathentry kind="var" path="M2_REPO/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar"/>
</classpath>
pom.xml
<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>
<groupId>com.sandeep</groupId>
<artifactId>CounterWebApp</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>CounterWebApp Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>3.2.0.RELEASE</spring.version>
<junit.version>4.11</junit.version>
<jdk.version>1.7</jdk.version>
</properties>
<dependencies>
<!-- Spring 3 dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>CounterWebApp</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
回答1:
How the problem was resolved:
Created a folder "java" under "main"(File -> New -> Folder).After this step,we have 3 folders under src/main: java,resources,webapp.
I downloaded the .zip provided along with the article,compared the .classpath with mine and modified it accordingly.
At this point,my eclipse.classpath content looks like:
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src/main/java" including="**/*.java"/>
<classpathentry kind="src" path="src/main/resources" excluding="**/*.java"/>
<classpathentry kind="output" path="target/classes"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-core/3.2.0.RELEASE/spring-core-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-web/3.2.0.RELEASE/spring-web-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-context/3.2.0.RELEASE/spring-context-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-aop/3.2.0.RELEASE/spring-aop-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/aopalliance/aopalliance/1.0/aopalliance-1.0.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-beans/3.2.0.RELEASE/spring-beans-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-expression/3.2.0.RELEASE/spring-expression-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/org/springframework/spring-webmvc/3.2.0.RELEASE/spring-webmvc-3.2.0.RELEASE.jar"/>
<classpathentry kind="var" path="M2_REPO/junit/junit/4.11/junit-4.11.jar" sourcepath="M2_REPO/junit/junit/4.11/junit-4.11-sources.jar"/>
<classpathentry kind="var" path="M2_REPO/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar"/>
</classpath>
Finally.created the Spring MVC controller class BaseController.java(/src/main/java/com/sandeep/controller/BaseController.java)
Select "java",New -> Other -> Class -> Next.
Package: com.sandeep.controller
- Name: BaseController
来源：https://stackoverflow.com/questions/21958321/spring-webapp-maven-source-folder-is-not-on-the-java-build-class-path