我嘗試實現(xiàn)這個用戶管理模板并使其適應(yīng)我的需要，但 Springboot 應(yīng)用程序不再啟動，我遇到了這個錯誤：org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityConfig': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'userRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Post-processing of merged bean definition failed; nested exception is java.lang.NoClassDefFoundError: javax/persistence/SynchronizationType我無法弄清楚出了什么問題。請幫忙？
3 回答
拉莫斯之舞
TA貢獻(xiàn)1820條經(jīng)驗 獲得超10個贊
我認(rèn)為您必須從 pom.xml
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.4.Final</version>
</dependency>
Spring Boot 2.1已經(jīng)有Hibernate依賴項而且它使用Hibernare v.5所以這里可能有一些問題Hibernate v.4而且我沒有在你正在關(guān)注的教程中找到這樣的依賴項
UPD 例外情況
org.springframework.beans.factory.BeanCreationException：創(chuàng)建名為“entityManagerFactory”的 bean 在類路徑資源 [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class] 中定義時出錯：調(diào)用 init 方法失敗；嵌套異常是 javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; 嵌套異常是 org.hibernate.cfg.beanvalidation.IntegrationException：激活 Bean 驗證集成時出錯
閱讀這個（ jaxb-api的最新版本是 2.3.1）。作為一種選擇，我還建議您嘗試將 a 添加@EnableTransactionManagement到配置類
UPD2
我終于設(shè)法重現(xiàn)了異常（
...激活 Bean 驗證集成時出錯
) 在我的環(huán)境中并找出問題的根源。由于您已經(jīng)添加了此依賴項：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
您不應(yīng)添加任何其他驗證依賴項。所以要擺脫這個問題，你必須刪除這個：
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>
精慕HU
TA貢獻(xiàn)1845條經(jīng)驗 獲得超8個贊
您問題的根本原因是不正確的依賴關(guān)系。您可以從 pom.xml 中注釋掉以下依賴項：
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.4.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.4.Final</version>
</dependency>
接下來你可以mvn dependency:tree在你的項目上做一個，并看到它org.springframework.boot:spring-boot-starter-web:jar:2.1.0.RELEASE傳遞了這兩個組件的正確版本：
org.hibernate.validator:hibernate-validator:jar:6.0.13.Final
javax.validation:validation-api:jar:2.0.1.Final
org.springframework.boot:spring-boot-starter-data-jpa 傳遞性拉入：
org.hibernate:hibernate-core:jar:5.3.7.Final
數(shù)據(jù)庫上的存儲庫操作在此設(shè)置下可以正常工作。
pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity4</artifactId>
<version>3.0.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
</dependency>
<!-- bootstrap and jquery -->
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>3.3.7</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>3.2.1</version>
</dependency>
<!-- mysql connector -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.icegreen</groupId>
<artifactId>greenmail</artifactId>
<version>1.5.5</version>
<scope>test</scope>
</dependency>
<!--<dependency>-->
<!--<groupId>javax.validation</groupId>-->
<!--<artifactId>validation-api</artifactId>-->
<!--<version>1.1.0.Final</version>-->
<!--</dependency>-->
<!--<dependency>-->
<!--<groupId>org.hibernate</groupId>-->
<!--<artifactId>hibernate-validator</artifactId>-->
<!--<version>5.4.1.Final</version>-->
<!--</dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils -->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.3</version>
</dependency>
<!--<dependency>-->
<!--<groupId>org.hibernate</groupId>-->
<!--<artifactId>hibernate-core</artifactId>-->
<!--<version>4.1.4.Final</version>-->
<!--</dependency>-->
</dependencies>
依賴樹
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:2.1.0.RELEASE:compile
[INFO] | +- org.hibernate.validator:hibernate-validator:jar:6.0.13.Final:compile
[INFO] | | +- javax.validation:validation-api:jar:2.0.1.Final:compile
[INFO] | | +- org.jboss.logging:jboss-logging:jar:3.3.2.Final:compile
[INFO] | | \- com.fasterxml:classmate:jar:1.4.0:compile
慕森王
TA貢獻(xiàn)1777條經(jīng)驗 獲得超3個贊
有人告訴我問題是我需要一個實際的郵件服務(wù)器一起運(yùn)行。我不知道。對您來說，這聽起來像是這次崩潰的合理原因嗎？有關(guān)如何設(shè)置電子郵件服務(wù)器并將其鏈接到 Maven 項目的優(yōu)秀教程的任何鏈接？我找不到任何。
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