我正在尝试从 http://www.sparkjava.com/ 开始，一个小型 Java Web 框架。说明告诉您将其添加为 Maven 依赖项(已完成)，但是当我 mvn package 时，我得到一个 class def not found for spark/Route。
我假设这是因为 Spark 不在我的类路径中。我怎样才能添加它？它会放在 pom.xml 中吗？
编辑:抱歉，这是我的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.bernsteinbear.myapp</groupId>
<artifactId>myapp</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>myapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sparkjava</groupId>
<artifactId>spark-core</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
</project>
编辑:跟踪
λ chaos myapp → java -cp target/myapp-1.0-SNAPSHOT.jar com.bernsteinbear.myapp.App
Exception in thread "main" java.lang.NoClassDefFoundError: spark/Route
Caused by: java.lang.ClassNotFoundException: spark.Route
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
aaa 和来源(来自主页的示例):
λ chaos myapp → cat src/main/java/com/bernsteinbear/myapp/App.java
/**
* Hello world!
*
*/
package com.bernsteinbear.myapp;
import spark.*;
import static spark.Spark.*;
public class App {
public static void main(String[] args) {
get(new Route("/hello") {
@Override
public Object handle(Request request, Response response) {
return "Hello World!";
}
});
}
}
最佳答案
什么对我有用:
mvn package
mvn exec:java -Dexec.mainClass="com.your.class.with.main.method"
关于java - Spark Java 和类路径，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19055482/