创建实体管理器工厂时出错，因为绑定到扫描<jar-file>时出错

Question

我在关注http://spring.io/guides/tutorials/data/3;我不是我知道我做错了什么，但我不断得到我不理解的异常。我试着搜索同样例外的问题，但无济于事。

堆栈跟踪:http://pastebin.com/WYPqS6da

PersistenceConfig.java

@Configuration
@EnableJpaRepositories
@EnableTransactionManagement
public class PersistenceConfig {
    @Bean
    public DataSource dataSource() throws SQLException {
        EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
        return builder.setType(EmbeddedDatabaseType.HSQL).build();
    }
    @Bean
    public EntityManagerFactory entityManagerFactory() throws SQLException {
        HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        vendorAdapter.setDatabase(Database.HSQL);
        vendorAdapter.setGenerateDdl(true);
        LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
        factory.setJpaVendorAdapter(vendorAdapter);
        factory.setPackagesToScan("com.scrumster.persistence.domain");
        factory.setDataSource(dataSource());
        factory.afterPropertiesSet();
        return factory.getObject();
    }
    @Bean
    public EntityManager entityManager(EntityManagerFactory entityManagerFactory) {
        return entityManagerFactory.createEntityManager();
    }
    @Bean
    public PlatformTransactionManager transactionManager() throws SQLException {
        JpaTransactionManager txManager = new JpaTransactionManager();
        txManager.setEntityManagerFactory(entityManagerFactory());
        return txManager;
    }
    @Bean
    public HibernateExceptionTranslator hibernateExceptionTranslator() {
        return new HibernateExceptionTranslator();
    }
}

build.gradle:

apply plugin: 'war'
apply plugin: 'tomcat'
apply plugin: 'java'
apply plugin: 'propdeps'
apply plugin: 'propdeps-maven'
apply plugin: 'propdeps-idea'
apply plugin: 'propdeps-eclipse'
apply plugin: 'eclipse'
apply plugin: 'idea'
buildscript {
  repositories {
    mavenCentral()
    maven {
      url "http://download.java.net/maven/2"
    }
    maven { url 'http://repo.spring.io/plugins-release' }
  }
  dependencies {
    classpath 'org.gradle.api.plugins:gradle-tomcat-plugin:0.9.8'
    classpath 'org.springframework.build.gradle:propdeps-plugin:0.0.1'
  }
}
repositories {
  mavenCentral()
  maven { url 'http://repo.spring.io/milestone/'}
}
dependencies {
    def tomcatVersion = '7.0.42'
    tomcat "org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}",
            "org.apache.tomcat.embed:tomcat-embed-logging-juli:${tomcatVersion}"
    tomcat("org.apache.tomcat.embed:tomcat-embed-jasper:${tomcatVersion}") {
      exclude group: 'org.eclipse.jdt.core.compiler', module: 'ecj'
    }
    compile 'org.springframework:spring-webmvc:4.0.5.RELEASE'
    compile 'org.springframework.data:spring-data-jpa:1.3.4.RELEASE'
    compile 'org.hibernate.javax.persistence:hibernate-jpa-2.0-api:1.0.1.Final'
    compile 'org.hibernate:hibernate-entitymanager:4.0.1.Final'
    compile 'org.springframework.hateoas:spring-hateoas:0.7.0.RELEASE'
    compile 'com.jayway.jsonpath:json-path:0.8.1'
    compile 'org.springframework.security:spring-security-web:3.2.0.M2'
    compile 'org.springframework.security:spring-security-core:3.2.0.M2'
    compile 'org.springframework.security:spring-security-config:3.2.0.M2'
    compile 'org.slf4j:slf4j-api:1.7.5'
    runtime 'org.hsqldb:hsqldb:2.3.2'
    runtime 'org.slf4j:slf4j-jdk14:1.7.5'
    runtime 'com.fasterxml.jackson.core:jackson-databind:2.3.3'
    runtime 'javax.xml.bind:jaxb-api:2.2.9'
    provided 'javax.servlet:javax.servlet-api:3.0.1'
    testCompile 'com.jayway.jsonpath:json-path-assert:0.8.1'
    testCompile 'org.springframework:spring-test:4.0.5.RELEASE'
    testCompile 'junit:junit:4.11'
    testCompile "org.mockito:mockito-core:1.9.5"
}
task wrapper(type: Wrapper) {
    gradleVersion = '1.12'
}
tomcatRunWar.contextPath = ''

异常堆栈

:

Caused by: java.lang.RuntimeException: Error while reading file:/E:/Files/Source/Workspace-Eclipse2/scrumster/bin/
        at org.hibernate.ejb.packaging.NativeScanner.getFilesInJar(NativeScanner.java:193)
        at org.hibernate.ejb.Ejb3Configuration.addScannedEntries(Ejb3Configuration.java:503)
        at org.hibernate.ejb.Ejb3Configuration.scanForClasses(Ejb3Configuration.java:851)
        ... 58 more
Caused by: java.io.IOException: invalid constant type: 18
        at javassist.bytecode.ConstPool.readOne(ConstPool.java:1113)
        at javassist.bytecode.ConstPool.read(ConstPool.java:1056)
        at javassist.bytecode.ConstPool.<init>(ConstPool.java:150)
        at javassist.bytecode.ClassFile.read(ClassFile.java:765)
        at javassist.bytecode.ClassFile.<init>(ClassFile.java:109)

我希望有人能给我指出正确的来源，或者帮助我在这个困境。

Answer 1

错误:

invalid constant type: 18

表明您已经使用Java 8构建了jar，但正在尝试在较低版本中运行应用程序。

从我在其他地方看到的情况来看，您可能需要切换到较新版本的javassist(这会引发错误)，因为您正在使用的版本与Java 8不兼容。

Answer 2

我在将我的一个项目迁移到Java 8时遇到了同样的问题。通过从4.2.0更新hibernate-entitymanager工件版本修复了这个问题。

Answer 3

如果你使用3.6.10-Final，你需要排除javassist(没有org)。

前缀)

    <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>3.6.10.Final</version>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>javassist</artifactId>
                    <groupId>javassist</groupId>
                </exclusion>
            </exclusions>
        </dependency>
       <!-- javassist with fixed https://issues.jboss.org/browse/JASSIST-174 -->
       <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.18.2-GA</version>
        </dependency>

Answer 4

您不需要为EntityManagerFactory和EntityManager提供bean。只需提供一个bean LocalContainerEntityManagerFactoryBean

Answer 5

我也有类似的问题。我的问题是，我有另一个依赖项(在我的例子中是jboss weld)，它使用了不同版本的javassist。排除在外也无济于事。

    <dependency>
        <groupId>org.jboss.weld</groupId>
        <artifactId>weld-se</artifactId>
        <version>1.0.1-Final</version>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <artifactId>javassist</artifactId>
                <groupId>org.javassist</groupId>
            </exclusion>
        </exclusions>
    </dependency>

所以，上面的排除不起作用。我不得不为jboss焊缝找到一个解决方案。