org.springframework.beans.factory.UnsatisfiedDependencyException：

Posted 2023-02-26

【中文标题】org.springframework.beans.factory.UnsatisfiedDependencyException：

【英文标题】：org.springframework.beans.factory.UnsatisfiedDependencyException:

【发布时间】：2016-04-16 17:32:12

【问题描述】：

我正在使用 Spring Data MongoDB，以下是我的存储库 + 模型：

public interface postJobRepository extends Repository<postJob,String> 
    List<postJob> findAll();
    Optional<postJob> findOne(long id);
    postJob save(postJob saved);

这是我的模型：

@Document
public final class postJob 

    @Id
    private long id;
    private  int userid;
    private String Summary;
    private String Category;
    private String SubCategory;
    private String Description;
    private String ReferenceDocs;
    private  int Budget;
    private String INR;
    private String Location;
    private String City;
    private String State;
    private String Duration;
    private String dateTimeOfPost;
    private String Status;
    private String Private;

    public int getUserid() 
        return userid;
    
    public String getSummary() 
        return Summary;
    
    public String getCategory() 
        return Category;
    
    public String getSubCategory() 
        return SubCategory;
    
    public String getDescription() 
        return Description;
    
    public String getReferenceDocs() 
        return ReferenceDocs;
    
    public int getBudget() 
        return Budget;
    
    public String getINR() 
        return INR;
    
    public String getLocation() 
        return Location;
    
    public String getCity() 
        return City;
    
    public String getState() 
        return State;
    
    public String getDuration() 
        return Duration;
    
    public String getDateTimeOfPost() 
        return dateTimeOfPost;
    
    public String getStatus() 
        return Status;
    
    public String getPrivate() 
        return Private;
    

    public void update(int userid, String summary, String category, String   subCategory, String description,
                       String referenceDocs, int budget, String iNR, String location, String  city, String state, String duration,
                       String dateTimeOfPost, String status, String private1) 

        this.userid = userid;
        Summary = summary;
        Category = category;
        SubCategory = subCategory;
        Description = description;
        ReferenceDocs = referenceDocs;
        Budget = budget;
        INR = iNR;
        Location = location;
        City = city;
        State = state;
        Duration = duration;
        this.dateTimeOfPost = dateTimeOfPost;
        Status = status;
        Private = private1;
    
    public postJob() 

    

但是，当我运行应用程序时，出现以下异常：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'postJobController' defined in file [D:\Development\postJob\bin\postJob\postJobController.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [postJob.postJobService]: : Error creating bean with name 'postJobServiceImp' defined in file [D:\Development\postJob\bin\postJob\postJobServiceImp.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [postJob.postJobRepository]: : Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'postJobServiceImp' defined in file [D:\Development\postJob\bin\postJob\postJobServiceImp.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [postJob.postJobRepository]: : Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1143) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:764) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
    at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:357) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1124) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1113) [spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
    at postJob.PostJobApplication.main(PostJobApplication.java:15) [bin/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'postJobServiceImp' defined in file [D:\Development\postJob\bin\postJob\postJobServiceImp.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [postJob.postJobRepository]: : Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1143) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1192) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1116) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    ... 19 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'postJobRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1192) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1116) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    ... 33 common frames omitted
Caused by: org.springframework.data.mapping.PropertyReferenceException: No property findOne found for type postJob!
    at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:75) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.Part.<init>(Part.java:76) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:235) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:373) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:353) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:84) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.<init>(PartTreeMongoQuery.java:54) ~[spring-data-mongodb-1.8.2.RELEASE.jar:na]
    at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory$MongoQueryLookupStrategy.resolveQuery(MongoRepositoryFactory.java:159) ~[spring-data-mongodb-1.8.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:416) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:206) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:251) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:237) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108) ~[spring-data-mongodb-1.8.2.RELEASE.jar:na]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    ... 44 common frames omitted

2016-01-12 12:53:10.096  INFO 7104 --- [           main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/D:/Development/postJob/bin/, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-web/1.3.1.RELEASE/dd3c0e6cdee57e591eabc95a33b16233547eec91/spring-boot-starter-web-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-data-mongodb/1.3.1.RELEASE/235eb4b37ab8d91f4f40cf6eec3bebe4d1907a5f/spring-boot-starter-data-mongodb-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-test/1.3.1.RELEASE/53c089ab224613e9ae1d3f9ec58efb2a2229b152/spring-boot-starter-test-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter/1.3.1.RELEASE/622e02ce77b3bea202b596a6fa0c40525ec81e1c/spring-boot-starter-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-tomcat/1.3.1.RELEASE/3c21bd7269af0df9b2d1b67581eec191e70faeb5/spring-boot-starter-tomcat-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-validation/1.3.1.RELEASE/47f424e3c7ed629b988b1976e52b662834a76856/spring-boot-starter-validation-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.6.4/f2abadd10891512268b16a1a1a6f81890f3e2976/jackson-databind-2.6.4.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-web/4.2.4.RELEASE/d4bcc6f4d8b64d7af9b67bc17f0d5106dce97926/spring-web-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-webmvc/4.2.4.RELEASE/cf4317be9c83b4c1c65ce2d3bb96673ac546030a/spring-webmvc-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.mongodb/mongo-java-driver/2.13.3/e8835850d2866528ecd45617f837c8110341ec99/mongo-java-driver-2.13.3.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.data/spring-data-mongodb/1.8.2.RELEASE/b279df28ed7340c6968bee0b32b827ed1cc4ce4e/spring-data-mongodb-1.8.2.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/junit/junit/4.12/2973d150c0dc1fefe998f834810d68f278ea58ec/junit-4.12.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.mockito/mockito-core/1.10.19/e8546f5bef4e061d8dd73895b4e8f40e3fe6effe/mockito-core-1.10.19.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.hamcrest/hamcrest-core/1.3/42a25dc3219429f0e5d060061f71acb49bf010a0/hamcrest-core-1.3.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.hamcrest/hamcrest-library/1.3/4785a3c21320980282f9f33d0d1264a69040538f/hamcrest-library-1.3.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-core/4.2.4.RELEASE/160ccd89230753d4f49477a967f5876b034d9745/spring-core-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-test/4.2.4.RELEASE/6efb87acf8050fc83334ffac305eb91371787283/spring-test-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot/1.3.1.RELEASE/7ea554d1d14e180ee080abc3e7c19e316a700188/spring-boot-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-autoconfigure/1.3.1.RELEASE/16ecb1f0b3ccbc8ecd52fa9de57a273d5a3eea00/spring-boot-autoconfigure-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-logging/1.3.1.RELEASE/ba9d2d5094d83cf40dab474d6526befb5ce85a74/spring-boot-starter-logging-1.3.1.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.yaml/snakeyaml/1.16/d64fb662c9e42789149f5078a62a22edda786c6a/snakeyaml-1.16.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/8.0.30/87b12667b258d0135f7cf4234030a5ccbb55193f/tomcat-embed-core-8.0.30.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-el/8.0.30/b97d5ff750126d7fdaf412aeec219306bd157e50/tomcat-embed-el-8.0.30.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-logging-juli/8.0.30/c19b5c37e1f67bf58f9726b438d5323411cd43c6/tomcat-embed-logging-juli-8.0.30.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-websocket/8.0.30/84cf6feff7ed4f73689b4fa076cc6ec33851e075/tomcat-embed-websocket-8.0.30.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.hibernate/hibernate-validator/5.2.2.Final/990905cd9184450c5f3e929ab2566305e3a67fa1/hibernate-validator-5.2.2.Final.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-annotations/2.6.4/ecbd5ad4efa46c8e88522751a80841a49e81a34d/jackson-annotations-2.6.4.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.6.4/27d3a9f7bbdcf72d93c9b2da7017e39551bfa9fb/jackson-core-2.6.4.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-aop/4.2.4.RELEASE/3329cf71b4bc49c9767ca4f0704ed7b773f29fba/spring-aop-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-beans/4.2.4.RELEASE/dc8e0874b53435f3e277d9da5aebd8b93cc7cf64/spring-beans-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-context/4.2.4.RELEASE/23cd0109e4eafc5629547e3680b0c4031e82efdd/spring-context-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-expression/4.2.4.RELEASE/15b6f6d61bc68fe2cc6cbd63e2329601afb8b39/spring-expression-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework/spring-tx/4.2.4.RELEASE/66e1a131263f5f9ba95943061b22ff2666930ca6/spring-tx-4.2.4.RELEASE.jar, file:/C:/Users/shree/.gradle/caches/modules-2/files-2.1/org.springframework.data/spring-data-commons/1.11.2.RELEASE/6422e6f06584244d846d6bc74e5f2c163701b89a/spring-data-commons-1.11.2.RELEASE.jar, 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【参考方案1】：

当您从 Repository 扩展时，您必须提供两个泛型：

模型类型 (postJob) ID的类型（带有@Id的字段）注解

在您的情况下，@Id 注释字段是 long，而您的存储库从 Repository<postJob, String> 扩展。这会引起麻烦，因为现在 Spring 无法找到具有 String 参数的 findOne() 方法。

要修复它，您必须修复泛型并从 Repository<postJob, Long> 扩展。

---

请记住，字段名必须以小写字母开头（与 INR、Budget、Summary、Location、...不同）并且类名以大写字母开头（与 @987654334 不同@)。

我不确定这是否会导致其他问题，但某些框架需要正确的字段/getter/setter 命名才能工作。

【参考方案2】：

您的问题措辞非常糟糕..

我可以从例外中看到的是，您的 postJobRepository 似乎期望 PostJob 具有名为 findOne 的属性。由于这显然不存在，因此您会遇到此异常。

请提供 PostJob 和 PostJobrepository 的代码以获得更详细的答案

更新：

将您的存储库更改为：

public interface postJobRepository extends Repository<postJob,Long> 

  List<postJob> findAll();
  Optional<postJob> findOne(Long id);
  postJob save(postJob saved);

Repository的第二个参数是postJob的id的类型

还要在postJob 中设置Long 类型的ID，而不是long

最后一个建议：类名应该以大写字母开头

【讨论】：

添加了 postjobrepository 和 postjob

您的存储库扩展 Repository 而不是 JpaRepository 或 CrudRepository 是否有原因？

我提供了一个链接。petrikainulainen.net/programming/spring-framework/…

我正在尝试做的相同示例项目

这些示例项目在 maven 中，但我使用的是 gradle