草庐IT

java - 错误 : javax. persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey 与 Spring Controller

coder 2023-05-11 原文

我有一个用 Spring MVC 编写并使用 Hibernate 的简单的两表应用程序。一切正常,但如果我尝试对其中一个 Controller 进行单元测试,我会收到消息:

Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;

单元测试方法如下:

@RunWith(value=SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration("file:C:/NetBeansProjects/Library/build/web/WEB-INF/library- servlet.xml")
public class TestPersonController {

@Autowired
private PersonService personService;
@Autowired
private WebApplicationContext wac;

private MockMvc mockMvc;

@Before
public void setup() {
    this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
}

@Test
public void testGetProfile() {
    Person mockPerson = new Person();
    mockPerson.setPersonId(1);
    mockPerson.setName("Mr Brown");
    mockPerson.setAddress("Utopia Planitia on Mars");
    mockPerson.setTelephone("1234567890"); 
    mockPerson.setEmail("brown@brown.com");

    when(personService.get(1)).thenReturn(mockPerson);
    try {
        mockMvc.perform(get("/person/profile?personId=1"))
            .andExpect(status().isOk())
            .andExpect(view().name("view/profile"))
            .andExpect(forwardedUrl("/WEB-INF/jsp/view/profile.jsp"))
            .andExpect(model().attribute("person", hasSize(1)))
            .andExpect(model().attribute("person", hasItem(
                    allOf(
                            hasProperty("personId", is(1)),
                            hasProperty("name", is("Mr Brown")),
                            hasProperty("address", is("53 Onslow Gardens")),
                            hasProperty("telephone", is("1234567890")),
                            hasProperty("email", is("brown@brown.com"))
                    )
            )));

    }
    catch(Exception e) {
        Misc.printStackTrace(e);
    }
    verify(personService, times(1)).get(1);
    verifyNoMoreInteractions(personService);        
}

}

构成应用程序模型的两个类通过 1:M 关系连接在一起。第一个表 Person 有:

@Id
@Column(name="PERSON_ID", unique=true, nullable=false)    
@GeneratedValue(strategy=GenerationType.AUTO)
private Integer personId;

@Column(name="NAME", nullable=false, length=50)      
private String name;

@Column(name="ADDRESS", nullable=false, length=100)
private String address;

@Column(name="TELEPHONE", nullable=false, length=10)
private String telephone;

@Column(name="EMAIL", nullable=false, length=50)
private String email;

@OneToMany(cascade=CascadeType.ALL, fetch=FetchType.LAZY, mappedBy="person") 
@JsonManagedReference
private List<Book> books;

第二张 table 有:

@Id
@Column(name="BOOK_ID", unique=true, nullable=false)
@GeneratedValue(strategy=GenerationType.AUTO)
private Integer bookId;

@Column(name="AUTHOR", nullable=false, length=50)
private String author;

@Column(name="TITLE", nullable=false, length=50)
private String title;

@Column(name="DESCRIPTION", nullable=false, length=500)
private String description;        
@Column(name="ONLOAN", nullable=false)
private boolean onLoan;


@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="person_id")
@JsonBackReference
private Person person;

这些类在所有其他情况下都能正常工作,除了 Person Controller 中方法的新单元测试。

我不在我的类中使用@ForeignKey 注释,因为似乎没有必要,如果我尝试,Java 说它是不必要的。

我有依赖问题还是什么?

单元测试堆栈跟踪如下:

Testsuite: library.person.TestPersonController
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.085 sec

------------- Standard Error -----------------
log4j:WARN No appenders could be found for logger (org.springframework.test.context.junit4.SpringJUnit4ClassRunner).
log4j:WARN Please initialize the log4j system properly.
------------- ---------------- ---------------
Testcase: testGetProfile(library.person.TestPersonController):  Caused an ERROR
Failed to load ApplicationContext
java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99)
    at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:101)
    at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:155)
    at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:100)
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:319)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:212)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adminController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private library.service.PersonService library.controller.admin.AdminController.personService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private library.dao.PersonDAOImpl library.service.PersonService.personDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory library.dao.PersonDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:129)
    at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:60)
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:100)
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:250)
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:64)
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:91)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private library.service.PersonService library.controller.admin.AdminController.personService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private library.dao.PersonDAOImpl library.service.PersonService.personDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory library.dao.PersonDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private library.dao.PersonDAOImpl library.service.PersonService.personDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory library.dao.PersonDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1014)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:957)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private library.dao.PersonDAOImpl library.service.PersonService.personDAO; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory library.dao.PersonDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory library.dao.PersonDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1014)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:957)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory library.dao.PersonDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:C:/NetBeansProjects/Library/build/web/WEB-INF/library-servlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1014)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:957)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
Caused by: java.lang.NoSuchMethodError: javax.persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey;
    at org.hibernate.cfg.AnnotationBinder.bindManyToOne(AnnotationBinder.java:2881)
    at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1795)
    at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:963)
    at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:796)
    at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3788)
    at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3742)
    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1410)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1844)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928)
    at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:343)
    at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:431)
    at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:416)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)


Test library.person.TestPersonController FAILED

Prop 文件配置:

<!-- Spring Properties file for Library. -->         
    <bean id="propertiesFactory" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="location">
           <value>/WEB-INF/library.properties</value>
        </property>
    </bean>

最佳答案

JoinColumn.foreignKey() 是在 JPA 2.1 中引入的,直到 4.3 版本才由 Hibernate 4 实现。如果您使用的是旧版本的 Hibernate 4,请尝试升级到 4.3.x。

如果您已经在使用 Hibernate 4.3,请确保您也在使用 JPA 2.1 以确保 API 和实现匹配。

关于java - 错误 : javax. persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey 与 Spring Controller ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24588860/

有关java - 错误 : javax. persistence.JoinColumn.foreignKey()Ljavax/persistence/ForeignKey 与 Spring Controller的更多相关文章

  1. ruby-on-rails - Rails 常用字符串(用于通知和错误信息等) - 2

    大约一年前,我决定确保每个包含非唯一文本的Flash通知都将从模块中的方法中获取文本。我这样做的最初原因是为了避免一遍又一遍地输入相同的字符串。如果我想更改措辞,我可以在一个地方轻松完成,而且一遍又一遍地重复同一件事而出现拼写错误的可能性也会降低。我最终得到的是这样的:moduleMessagesdefformat_error_messages(errors)errors.map{|attribute,message|"Error:#{attribute.to_s.titleize}#{message}."}enddeferror_message_could_not_find(obje

  2. java - 等价于 Java 中的 Ruby Hash - 2

    我真的很习惯使用Ruby编写以下代码:my_hash={}my_hash['test']=1Java中对应的数据结构是什么? 最佳答案 HashMapmap=newHashMap();map.put("test",1);我假设? 关于java-等价于Java中的RubyHash,我们在StackOverflow上找到一个类似的问题: https://stackoverflow.com/questions/22737685/

  3. ruby-on-rails - 迷你测试错误 : "NameError: uninitialized constant" - 2

    我遵循MichaelHartl的“RubyonRails教程:学习Web开发”,并创建了检查用户名和电子邮件长度有效性的测试(名称最多50个字符,电子邮件最多255个字符)。test/helpers/application_helper_test.rb的内容是:require'test_helper'classApplicationHelperTest在运行bundleexecraketest时,所有测试都通过了,但我看到以下消息在最后被标记为错误:ERROR["test_full_title_helper",ApplicationHelperTest,1.820016791]test

  4. ruby-on-rails - 如何在 Rails View 上显示错误消息? - 2

    我是rails的新手,想在form字段上应用验证。myviewsnew.html.erb.....模拟.rbclassSimulation{:in=>1..25,:message=>'Therowmustbebetween1and25'}end模拟Controller.rbclassSimulationsController我想检查模型类中row字段的整数范围,如果不在范围内则返回错误信息。我可以检查上面代码的范围,但无法返回错误消息提前致谢 最佳答案 关键是您使用的是模型表单,一种显示ActiveRecord模型实例属性的表单。c

  5. 使用 ACL 调用 upload_file 时出现 Ruby S3 "Access Denied"错误 - 2

    我正在尝试编写一个将文件上传到AWS并公开该文件的Ruby脚本。我做了以下事情:s3=Aws::S3::Resource.new(credentials:Aws::Credentials.new(KEY,SECRET),region:'us-west-2')obj=s3.bucket('stg-db').object('key')obj.upload_file(filename)这似乎工作正常,除了该文件不是公开可用的,而且我无法获得它的公共(public)URL。但是当我登录到S3时,我可以正常查看我的文件。为了使其公开可用,我将最后一行更改为obj.upload_file(file

  6. ruby-on-rails - 错误 : Error installing pg: ERROR: Failed to build gem native extension - 2

    我克隆了一个rails仓库,我现在正尝试捆绑安装背景:OSXElCapitanruby2.2.3p173(2015-08-18修订版51636)[x86_64-darwin15]rails-v在您的Gemfile中列出的或native可用的任何gem源中找不到gem'pg(>=0)ruby​​'。运行bundleinstall以安装缺少的gem。bundleinstallFetchinggemmetadatafromhttps://rubygems.org/............Fetchingversionmetadatafromhttps://rubygems.org/...Fe

  7. ruby - #之间? Cooper 的 *Beginning Ruby* 中的错误或异常 - 2

    在Cooper的书BeginningRuby中,第166页有一个我无法重现的示例。classSongincludeComparableattr_accessor:lengthdef(other)@lengthother.lengthenddefinitialize(song_name,length)@song_name=song_name@length=lengthendenda=Song.new('Rockaroundtheclock',143)b=Song.new('BohemianRhapsody',544)c=Song.new('MinuteWaltz',60)a.betwee

  8. ruby-on-rails - 每次我尝试部署时,我都会得到 - (gcloud.preview.app.deploy) 错误响应 : [4] DEADLINE_EXCEEDED - 2

    我是Google云的新手,我正在尝试对其进行首次部署。我的第一个部署是RubyonRails项目。我基本上是在关注thisguideinthegoogleclouddocumentation.唯一的区别是我使用的是我自己的项目,而不是他们提供的“helloworld”项目。这是我的app.yaml文件runtime:customvm:trueentrypoint:bundleexecrackup-p8080-Eproductionconfig.ruresources:cpu:0.5memory_gb:1.3disk_size_gb:10当我转到我的项目目录并运行gcloudprevie

  9. ruby-on-rails - Rails 5 Active Record 记录无效错误 - 2

    我有两个Rails模型,即Invoice和Invoice_details。一个Invoice_details属于Invoice,一个Invoice有多个Invoice_details。我无法使用accepts_nested_attributes_forinInvoice通过Invoice模型保存Invoice_details。我收到以下错误:(0.2ms)BEGIN(0.2ms)ROLLBACKCompleted422UnprocessableEntityin25ms(ActiveRecord:4.0ms)ActiveRecord::RecordInvalid(Validationfa

  10. arrays - 这是 Ruby 中 Array.fill 方法的错误吗? - 2

    这个问题在这里已经有了答案:Arraysmisbehaving(1个回答)关闭6年前。是否应该这样,即我误解了,还是错误?a=Array.new(3,Array.new(3))a[1].fill('g')=>[["g","g","g"],["g","g","g"],["g","g","g"]]它不应该导致:=>[[nil,nil,nil],["g","g","g"],[nil,nil,nil]]

随机推荐