在类路径资源中定义名称为“sessionFactory”的 bean 创建时出错...找不到类

【问题标题】：Error creating bean with name 'sessionFactory' defined in class path resource ... Cannot find class在类路径资源中定义名称为“sessionFactory”的 bean 创建时出错...找不到类
【发布时间】：2016-05-23 18:16:41
【问题描述】：

我有一个项目，它的 spring 配置工作得很好。但是，现在我尝试创建一个 maven 项目并将所有包复制到新的 maven 项目中，当我在 tomcat 服务器上运行它时出现异常：找不到我的 sessionFactoryBean 的类。

当类的路径明显正确时，我不明白为什么我的 maven 项目无法为我的 springframework 配置找到我的注释类。

我的弹簧配置：

    <context:annotation-config />
<tx:annotation-driven transaction-manager="transactionManager" />

<!-- Database config -->
<import resource="datasource.xml" />

<bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource" />
</bean>

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="annotatedClasses">
        <list>
            <!-- item -->
            <value>domain.item.Format</value>
            <value>domain.item.Option</value>
            <value>domain.item.Category</value>
            <value>domain.item.Item</value>
            <value>domain.item.ItemPrice</value>
            <value>domain.item.PriceDiscount</value>

            <!-- location -->
            <value>domain.location.Address</value> ....

我的 web.xml

    <listener>
    <listener-class>
        org.springframework.web.context.ContextLoaderListener
    </listener-class>
</listener>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring.config.xml</param-value>
</context-param>

<servlet>
    <servlet-name>Jersey Web Application</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>Presto.RestServer</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>Jersey Web Application</servlet-name>
    <url-pattern>/webapi/*</url-pattern>
</servlet-mapping>

这是项目的截图

这里是 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>Presto</groupId>
<artifactId>RestServer</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>RestServer</name>

<build>
    <finalName>RestServer</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.5.1</version>
            <inherited>true</inherited>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
    </plugins>
</build>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.glassfish.jersey</groupId>
            <artifactId>jersey-bom</artifactId>
            <version>${jersey.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet-core</artifactId>
        <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
        <!-- artifactId>jersey-container-servlet</artifactId -->
    </dependency>
    <!-- uncomment this to get JSON support <dependency> <groupId>org.glassfish.jersey.media</groupId> 
        <artifactId>jersey-media-moxy</artifactId> </dependency> -->

    <!-- SPRING REQUIRED DEPENDENCIES -->
    <!-- http://mvnrepository.com/artifact/org.springframework/spring-aop -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-aspects -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-beans -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-expression -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-expression -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-orm -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-jms -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jms</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-messaging -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-messaging</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-oxm -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-oxm</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-test -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-tx -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-web -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>
    <!-- http://mvnrepository.com/artifact/org.springframework/spring-websocket -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-websocket</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

    <!-- HIBERNATE REQUIRED DEPENDENCIES -->
    <!-- http://mvnrepository.com/artifact/antlr/antlr -->
    <dependency>
        <groupId>antlr</groupId>
        <artifactId>antlr</artifactId>
        <version>2.7.7</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/com.fasterxml/classmate -->
    <dependency>
        <groupId>com.fasterxml</groupId>
        <artifactId>classmate</artifactId>
        <version>1.3.0</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/dom4j/dom4j -->
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.apache.geronimo.specs/geronimo-jta_1.1_spec -->
    <dependency>
        <groupId>org.apache.geronimo.specs</groupId>
        <artifactId>geronimo-jta_1.1_spec</artifactId>
        <version>1.1.1</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.hibernate.common/hibernate-commons-annotations -->
    <dependency>
        <groupId>org.hibernate.common</groupId>
        <artifactId>hibernate-commons-annotations</artifactId>
        <version>5.0.1.Final</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.1.0.Final</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.hibernate/hibernate-java8 -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-java8</artifactId>
        <version>5.1.0.Final</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>5.1.0.Final</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.38</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/org.hsqldb/hsqldb -->
    <dependency>
        <groupId>org.hsqldb</groupId>
        <artifactId>hsqldb</artifactId>
        <version>2.3.4</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.39</version>
    </dependency>


</dependencies>
<properties>
    <jersey.version>2.23</jersey.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

例外：

org.springframework.beans.factory.BeanCreationException：在类路径资源 [spring.config.xml] 中定义名称为“sessionFactory”的 bean 创建错误：bean 初始化失败；嵌套异常是 org.springframework.beans.TypeMismatchException：无法将类型 [java.util.ArrayList] 的属性值转换为属性“annotatedClasses”所需的类型 [java.lang.Class[]]；嵌套异常是 java.lang.IllegalArgumentException: 找不到类 [domain.item.Format]

编辑：

package domain.item;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="FORMAT")
public class Format {

    @Id
    @Column(name="ID")
    @GeneratedValue
    private int id;

    @Column(name="NAME")
    private String name;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

【问题讨论】：

  • 老实说，您最好重新开始一个 Spring Boot 项目并将代码转储到其中。您将取消所有 XML 配置，甚至您的 pom 也将通过 Boot 管理依赖版本大大简化 - 相信我；这将是值得的。

标签： java spring hibernate


【解决方案1】：

我昨天遇到了同样的问题，然后我看到了这个问题，但没有正确的答案。所以将来如果有人遇到这个错误，这里就是解决方案。

我遇到了同样的问题。同样的错误即将到来。问题出在 pom.xml 中。 如果您在 pom.xml 中多次添加相同的依赖项，您将收到此错误。就我而言，我正在使用

<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency> 
<dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

它们只不过是相同的。当我使用组 id jstl 删除依赖项时，错误消失了。 在您的情况下，您多次使用以下依赖项。

<dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>4.2.6.RELEASE</version>
    </dependency>

删除其中任何一个，希望您的问题能够得到解决。

【讨论】：

    【解决方案2】：

    请看以下内容：

    1. 检查Format 类和其他域类是否正确注释。

    2. 检查组件扫描是否正确扫描了存在这些domain classes 的所需包。

    您也可以在下面添加一个属性：

    <property name="packagesToScan">
    <list>
        <value>domain.item</value>
    </list>
</property>

    在 sessionfactory bean 中扫描所有注解类并使用AnnotationSessionFactoryBean 创建 SessionFactory

    【讨论】：

    • 您好，感谢您的回复，您能否为您的#2 详细解释一下如何正确添加组件扫描？我尝试在我的 Format 类中添加标签 @Component 但这没有帮助......
    • 你必须添加类似 来扫描你的 domain.item 包。此外，如果您的域是实体映射数据库中的表，那么您必须使用 @Entity 进行注释。
    • 可以肯定的是，这些东西都不相关，因为 annotatedClasses 属性被传递到 SessionFactory 并且是 Hibernate 搜索类并分析它们。
    猜你喜欢
    • 2014-09-10
    • 2020-03-25
    • 2021-06-28
    • 1970-01-01
    • 2021-10-13
    • 2018-12-27
    • 2021-05-20
    • 1970-01-01
    • 1970-01-01
    相关资源
    最近更新 更多
    热门标签
    Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode