Java 使用我自己项目的依赖项时出现NoClassDefFoundError

我正在学习Maven和Javaee。 我有两个EJB项目。EJB1和EJB2。 在我的EJB1 pom.xml中，我依赖于EJB2：

<dependency>
    <groupId>learning</groupId>
    <artifactId>EJB2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</dependency>

Eclipse找到它并进行编译。 Maven安装也可以工作

但是当我部署到Wildfly时，我得到了一个java.lang.NoClassDefFoundError:mypackage.MyDTO

我的DTO定义如下：

public class MyDTO implements Serializable {

    private static final long serialVersionUID = 1L;

    private String str = "this is a real DTO";

    public String getString() {
        return str;
    }
}

我尝试在我的wildfly中只部署EJB1.ejb和EJB2.ejb文件（使用eclipse），但我得到了相同的错误

我错过什么了吗

编辑：

这些是项目的pom：

EJB1 pom.xml：

<?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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>learning</groupId>
    <artifactId>EJB1</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>ejb</packaging>

    <name>EJB1</name>

    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
             <groupId>learning</groupId>
             <artifactId>EJB2</artifactId>
             <version>0.0.1-SNAPSHOT</version>
             <scope>compile</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-ejb-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <ejbVersion>3.1</ejbVersion>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${endorsed.dir}</outputDirectory>
                            <silent>true</silent>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>javax</groupId>
                                    <artifactId>javaee-endorsed-api</artifactId>
                                    <version>7.0</version>
                                    <type>jar</type>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

4.0.0
学习
EJB1
0.0.1-快照
ejb
EJB1
${project.build.directory}/project
UTF-8
爪哇
JavaEEAPI
7
假如
学习
EJB2
0.0.1-快照
编译
org.apache.maven.plugins
maven编译器插件
3.1
1.7
1.7
${annowed.dir}
org.apache.maven.plugins
maven ejb插件
2.3
3.1
org.apache.maven.plugins
maven依赖插件
2.6
验证
复制
${annowed.dir}
真的
爪哇
javaee认可的api
7
罐子

EJB2 pom.xml：

<?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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>learning</groupId>
    <artifactId>EJB2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>ejb</packaging>

    <name>EJB2</name>

    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-ejb-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <ejbVersion>3.1</ejbVersion>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${endorsed.dir}</outputDirectory>
                            <silent>true</silent>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>javax</groupId>
                                    <artifactId>javaee-endorsed-api</artifactId>
                                    <version>7.0</version>
                                    <type>jar</type>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

4.0.0
学习
EJB2
0.0.1-快照
ejb
EJB2
${project.build.directory}/project
UTF-8
爪哇
JavaEEAPI
7
假如
org.apache.maven.plugins
maven编译器插件
3.1
1.7
1.7
${annowed.dir}
org.apache.maven.plugins
maven ejb插件
2.3
3.1
org.apache.maven.plugins
maven依赖插件
2.6
验证
复制
${annowed.dir}
真的
爪哇
javaee认可的api
7
罐子

我通过创建一个EAR并在其中打包两个ejb包来解决这个问题。谢谢您的帮助：）

MYDTO.class在您的jar中吗？发布maven构建部分EJB1.xml和EJB2.xml中的包类型是什么？它们是罐子、战争还是耳朵？@redFIVE MyDTO.class在EJB2.jar中，但不在EJB1.jar中（当然）。我将发布maven构建部分soon@Arkantos请参阅更新部署项目时，是否检查了WEB-INF/lib目录中是否存在EJB1.jar和EJB2.jar？

<?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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>learning</groupId>
    <artifactId>EJB2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>ejb</packaging>

    <name>EJB2</name>

    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-ejb-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <ejbVersion>3.1</ejbVersion>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${endorsed.dir}</outputDirectory>
                            <silent>true</silent>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>javax</groupId>
                                    <artifactId>javaee-endorsed-api</artifactId>
                                    <version>7.0</version>
                                    <type>jar</type>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>