我在 Eclipse 中创建了 maven-archetype-webapp 项目。我想在 Java 中使用 Clojure 代码。所以，有我的 core.clj 文件：
(ns coq.core
(:gen-class
:name coq.core
:methods [#^{:static true} [foo [int] void]]))
(defn -foo [i] (println "Hello from Clojure. My input was " i))
(defn -main [] (println "Hello from Clojure -main." ))
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>gleboGroup</groupId>
<artifactId>javaandclojure</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>javaandclojure Maven Webapp</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>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1-b02</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.clojure</groupId>
<artifactId>clojure</artifactId>
<version>1.3.0</version>
</dependency>
</dependencies>
<build>
<finalName>javaandclojure</finalName>
<plugins>
<plugin>
<groupId>com.theoryinpractise</groupId>
<artifactId>clojure-maven-plugin</artifactId>
<version>1.3.10</version>
<configuration>
<sourceDirectories>
<sourceDirectory>src/main/clojure</sourceDirectory>
</sourceDirectories>
<testSourceDirectories>
<testSourceDirectory>src/test/clojure</testSourceDirectory>
</testSourceDirectories>
</configuration>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<executions>
<execution>
<id>default-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>default-testCompile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
我的单个 servlet 在 core.foo(123) 上有错误：
package com.javaandclojure;
import java.io.IOException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.ServletException;
import javax.servlet.http.*;
import coq.*;
@WebServlet({ "/*"})
public class Main extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
System.out.println("inside get!");
core.foo(123);// core cannot be resolved
request.setAttribute("number", 42);
request.getRequestDispatcher("/index.jsp").forward(request, response);
}
}
日食的一些截图：
构建路径：
Maven Build with targets:" clean package" 给它：
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building javaandclojure Maven Webapp 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ javaandclojure ---
[INFO] Deleting D:\porn\indigo\javaandclojure\target
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ javaandclojure ---
[WARNING] Using platform encoding (Cp1251 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ javaandclojure ---
[WARNING] File encoding has not been set, using platform encoding Cp1251, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\porn\indigo\javaandclojure\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] \porn\indigo\javaandclojure\src\main\java\com\javaandclojure\Main.java:[10,10] error: package coq does not exist
[ERROR] \porn\indigo\javaandclojure\src\main\java\com\javaandclojure\Main.java:[17,2] error: cannot find symbol
[INFO] 2 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.042s
[INFO] Finished at: Sun Nov 11 16:28:25 EET 2012
[INFO] Final Memory: 8M/20M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project javaandclojure: Compilation failure: Compilation failure:
[ERROR] \porn\indigo\javaandclojure\src\main\java\com\javaandclojure\Main.java:[10,10] error: package coq does not exist
[ERROR] \porn\indigo\javaandclojure\src\main\java\com\javaandclojure\Main.java:[17,2] error: cannot find symbol
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
也许我应该使用另一个 Maven 原型？