我想構建我的pom.xml,以便在運行'mvn install'時自動創建數據庫模式。我使用「maven-kayenne-plugin」來做到這一點。這是插件被稱爲(在集成測試階段),因爲我可以看到輸出。但是,除了例外情況,mojo失敗:(我用-e和-X標誌來看這個)。Derby JDBC驅動程序在整合範圍(卡宴)的依賴範圍
java.lang.ClassNotFoundException: org.apache.derby.jdbc.ClientDriver
(我得到同樣的,如果我嘗試並使用EmbeddedDriver和我是否包含「derbyclient」或簡稱爲「德比」作爲我的依賴)。
下面是一個應該複製問題的pom.xml。 我在Windows上使用MVN 3。 [阿帕奇的Maven 3.0.4(r1232337; 2012-01-17 08:44:56 + 0000)]
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany</groupId>
<artifactId>myproject</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<build>
<plugins>
<plugin>
<groupId>org.apache.cayenne.plugins</groupId>
<artifactId>maven-cayenne-modeler-plugin</artifactId>
<version>3.2M1</version>
</plugin>
<plugin>
<groupId>org.apache.cayenne.plugins</groupId>
<artifactId>maven-cayenne-plugin</artifactId>
<version>3.2M1</version>
<executions>
<execution>
<id>cgen</id>
<configuration>
<superPkg>com.mycompany.model.generated</superPkg>
<map>${project.build.sourceDirectory}/../resources/datamap.map.xml</map>
<destDir>${project.build.sourceDirectory}</destDir>
</configuration>
<goals>
<goal>cgen</goal>
</goals>
</execution>
<execution>
<id>cdbgen</id>
<configuration>
<map>${project.build.sourceDirectory}/../resources/datamap.map.xml</map>
<driver>org.apache.derby.jdbc.ClientDriver</driver>
<url>jdbc:derby:memory:tracedb;create=true</url>
<username>test</username>
</configuration>
<goals>
<goal>cdbgen</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.10.1.1</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
這也需要有效的辣椒 「datamap.map.xml」 文件(在SRC /主/資源),這裏有一個我早些時候:
<?xml version="1.0" encoding="utf-8"?>
<data-map xmlns="http://cayenne.apache.org/schema/3.0/modelMap"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://cayenne.apache.org/schema/3.0/modelMap http://cayenne.apache.org/schema/3.0/modelMap.xsd"
project-version="6">
<db-entity name="TEST">
<db-attribute name="ID" type="INTEGER" isPrimaryKey="true" isMandatory="true"/>
</db-entity>
</data-map>
編輯:
添加更多的信息。
derbyclient-10.10.1.1.jar確實包含'org.apache.derby.jdbc.ClientDriver'類(只是從Netbeans擴展了JAR)。
-X標誌似乎表明CLASSPATH正確引用JAR:
[DEBUG] (f) classpathElements = [<PROJECT-PATH>\mvn\target\classes, <HOME-DIR>\.m2\repository\org\apache\derby\derbyclient\10.10.1.1\derbyclient-10.10.1.1.jar]
SOLUTION:工作的pom.xml(見答案和我的評論):
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany</groupId>
<artifactId>myproject</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<build>
<plugins>
<plugin>
<groupId>org.apache.cayenne.plugins</groupId>
<artifactId>maven-cayenne-modeler-plugin</artifactId>
<version>3.2M1</version>
</plugin>
<plugin>
<groupId>org.apache.cayenne.plugins</groupId>
<artifactId>maven-cayenne-plugin</artifactId>
<version>3.2M1</version>
<dependencies>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<version>10.10.1.1</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>cgen</id>
<configuration>
<superPkg>com.mycompany.model.generated</superPkg>
<map>${project.build.sourceDirectory}/../resources/datamap.map.xml</map>
<destDir>${project.build.sourceDirectory}</destDir>
</configuration>
<goals>
<goal>cgen</goal>
</goals>
</execution>
<execution>
<id>cdbgen</id>
<configuration>
<map>${project.build.sourceDirectory}/../resources/datamap.map.xml</map>
<driver>org.apache.derby.jdbc.EmbeddedDriver</driver>
<url>jdbc:derby:memory:tracedb;create=true</url>
<username>test</username>
</configuration>
<goals>
<goal>cdbgen</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.10.1.1</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
1)你確定'org.apache.derby.jdbc.ClientDriver'實際上位於'derbyclient'依賴嗎? 2)嘗試使用'-X'命令行參數運行,並查看執行插件時的類路徑是否包含此依賴關係。 –
您能否告訴Maven工具是否成功從maven存儲庫中檢索derbyclient.jar的副本?我通常不使用Maven,但我認爲有時版本號會在jar名稱中進行編碼,因此您可能需要獲取類似derbyclient_10_10_1_1.jar的內容? –
我將編輯我的原始文章 - 但對1)和2)的快速回答是「是」(它在JAR中)以及2)確定類路徑是正確的(從-X輸出)。 – monojohnny