尝试使用多个数据库创建一个应用程序但显然我正在做一些非常错误的事情。对不起，如果我在下面写的东西是愚蠢的，但是因为我已经开始编码它不会是我的第一次。注意我正在使用多个模式。不确定这是否是使用多个数据库编写这样的应用程序的正确方法。
实体：
@Entity
@Table(name = "buyers",schema = "toner_buyer")
public class Buyers {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "BUYER_ID")
private int buyerId;
@Column(name = "FIRST_NAME")
private String firstName;
@Column(name = "LAST_NAME")
private String lastName;
@Column(name = "BUYER_ADDRESS")
private String buyerAddress;
@ManyToOne
@JoinColumn(name = "MANG_ID")
private Manager manager;
@OneToMany(targetEntity = Toner.class, mappedBy = "buyers",
cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private Set<Toner> toners;
public Buyers(){}
public Buyers(String firstName, String lastName, String buyerAddress, Set<Toner> buyerToner) {
this.firstName = firstName;
this.lastName = lastName;
this.buyerAddress = buyerAddress;
this.toners = buyerToner;
}
public int getBuyerId() {
return buyerId;
}
public void setBuyerId(int buyerId) {
this.buyerId = buyerId;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getBuyerAddress() {
return buyerAddress;
}
public void setBuyerAddress(String buyerAddress) {
this.buyerAddress = buyerAddress;
}
public Set<Toner> getBuyerToner() {
return toners;
}
public void setBuyerToner(Set<Toner> buyerToner) {
this.toners = buyerToner;
}
}
第二
@Entity
@Table(name = "managers", schema = "toner_manager")
public class Manager {
@GeneratedValue(strategy = GenerationType.AUTO)
@Id
@Column(name = "MANG_ID")
private int mid;
@Column(name = "FIRST_NAME")
private String firstName;
@Column(name = "LAST_NAME")
private System lastName;
@OneToMany(targetEntity = Buyers.class, mappedBy = "managers", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private Set<Buyers> buyers;
}
第三
@Entity
@Table(name = "toners",schema = "toner_stock")
public class Toner {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "TONER_ID")
private long id;
@Column(name = "TONER_NAME")
private String tonerName;
@Column(name = "TONER_PRICE")
private int tonerPrice;
@Column(name = "TONER_QUANTITY")
private int tonerQuantity;
@ManyToOne
@JoinColumn(name = "BUYER_ID")
private Buyers buyers;
public Toner(){}
public Toner(int tonerId){
this.id = tonerId;
}
public Toner(String tonerName, int tonerPrice, int tonerQuantity) {
this.tonerName = tonerName;
this.tonerPrice = tonerPrice;
this.tonerQuantity = tonerQuantity;
}
@Override
public String toString() {
return "Toner{" +
"id=" + id +
", tonerName='" + tonerName + '\'' +
", tonerPrice=" + tonerPrice +
", tonerQuantity=" + tonerQuantity +
'}';
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getTonerName() {
return tonerName;
}
public void setTonerName(String tonerName) {
this.tonerName = tonerName;
}
public int getTonerPrice() {
return tonerPrice;
}
public void setTonerPrice(int tonerPrice) {
this.tonerPrice = tonerPrice;
}
public int getTonerQuantity() {
return tonerQuantity;
}
public void setTonerQuantity(int tonerQuantity) {
this.tonerQuantity = tonerQuantity;
}
}
application.properties：
spring.ds_toner.url = jdbc:mysql://localhost:3306/toner_stock?useSSL=false
spring.ds_toner.username=toner
spring.ds_toner.password=toner
spring.ds_toner.driver-class-name=com.mysql.jdbc.Driver
spring.ds_manager.url=jdbc:mysql://localhost:3306/toner_manager?useSSL=false
spring.ds_manager.username=toner
spring.ds_manager.password=toner
spring.ds_manager.driver-class-name= com.mysql.jdbc.Driver
spring.ds_buyer.url= jdbc:mysql://localhost:3306/toner_buyer?useSSL=false
spring.ds_buyer.username=toner
spring.ds_buyer.password=toner
spring.ds_buyer.driver-class-name= com.mysql.jdbc.Driver
spring.jpa.hibernate.ddl-auto=create-drop
spring.jpa.hibernate.show-sql=true
spring.jpa.hibernate.dialect= org.hibernate.dialect.MySQL55Dialect
spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate5.SpringSessionContext
打印跟踪：
/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java "-javaagent:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=50343:/Applications/IntelliJ IDEA CE.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/tools.jar:/Users/ronaldpitt/Desktop/TonerStock/target/classes:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-web/1.5.2.RELEASE/spring-boot-starter-web-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter/1.5.2.RELEASE/spring-boot-starter-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot/1.5.2.RELEASE/spring-boot-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.5.2.RELEASE/spring-boot-autoconfigure-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-logging/1.5.2.RELEASE/spring-boot-starter-logging-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/ch/qos/logback/logback-classic/1.1.11/logback-classic-1.1.11.jar:/Users/ronaldpitt/.m2/repository/ch/qos/logback/logback-core/1.1.11/logback-core-1.1.11.jar:/Users/ronaldpitt/.m2/repository/org/slf4j/jul-to-slf4j/1.7.24/jul-to-slf4j-1.7.24.jar:/Users/ronaldpitt/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.24/log4j-over-slf4j-1.7.24.jar:/Users/ronaldpitt/.m2/repository/org/yaml/snakeyaml/1.17/snakeyaml-1.17.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/1.5.2.RELEASE/spring-boot-starter-tomcat-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/8.5.11/tomcat-embed-core-8.5.11.jar:/Users/ronaldpitt/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/8.5.11/tomcat-embed-el-8.5.11.jar:/Users/ronaldpitt/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/8.5.11/tomcat-embed-websocket-8.5.11.jar:/Users/ronaldpitt/.m2/repository/org/hibernate/hibernate-validator/5.3.4.Final/hibernate-validator-5.3.4.Final.jar:/Users/ronaldpitt/.m2/repository/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar:/Users/ronaldpitt/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.8.7/jackson-databind-2.8.7.jar:/Users/ronaldpitt/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.8.0/jackson-annotations-2.8.0.jar:/Users/ronaldpitt/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.8.7/jackson-core-2.8.7.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-web/4.3.7.RELEASE/spring-web-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-aop/4.3.7.RELEASE/spring-aop-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-context/4.3.7.RELEASE/spring-context-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-webmvc/4.3.7.RELEASE/spring-webmvc-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-expression/4.3.7.RELEASE/spring-expression-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-core/4.3.7.RELEASE/spring-core-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-thymeleaf/1.5.2.RELEASE/spring-boot-starter-thymeleaf-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/thymeleaf/thymeleaf-spring4/2.1.5.RELEASE/thymeleaf-spring4-2.1.5.RELEASE.jar:/Users/ronaldpitt/.m2/repository/nz/net/ultraq/thymeleaf/thymeleaf-layout-dialect/1.4.0/thymeleaf-layout-dialect-1.4.0.jar:/Users/ronaldpitt/.m2/repository/org/codehaus/groovy/groovy/2.4.9/groovy-2.4.9.jar:/Users/ronaldpitt/.m2/repository/org/hibernate/hibernate-core/5.2.9.Final/hibernate-core-5.2.9.Final.jar:/Users/ronaldpitt/.m2/repository/org/jboss/logging/jboss-logging/3.3.0.Final/jboss-logging-3.3.0.Final.jar:/Users/ronaldpitt/.m2/repository/org/hibernate/javax/persistence/hibernate-jpa-2.1-api/1.0.0.Final/hibernate-jpa-2.1-api-1.0.0.Final.jar:/Users/ronaldpitt/.m2/repository/org/javassist/javassist/3.21.0-GA/javassist-3.21.0-GA.jar:/Users/ronaldpitt/.m2/repository/antlr/antlr/2.7.7/antlr-2.7.7.jar:/Users/ronaldpitt/.m2/repository/org/jboss/spec/javax/transaction/jboss-transaction-api_1.2_spec/1.0.1.Final/jboss-transaction-api_1.2_spec-1.0.1.Final.jar:/Users/ronaldpitt/.m2/repository/org/jboss/jandex/2.0.3.Final/jandex-2.0.3.Final.jar:/Users/ronaldpitt/.m2/repository/com/fasterxml/classmate/1.3.3/classmate-1.3.3.jar:/Users/ronaldpitt/.m2/repository/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar:/Users/ronaldpitt/.m2/repository/org/hibernate/common/hibernate-commons-annotations/5.0.1.Final/hibernate-commons-annotations-5.0.1.Final.jar:/Users/ronaldpitt/.m2/repository/org/springframework/data/spring-data-commons/1.13.1.RELEASE/spring-data-commons-1.13.1.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-beans/4.3.7.RELEASE/spring-beans-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/slf4j/slf4j-api/1.7.24/slf4j-api-1.7.24.jar:/Users/ronaldpitt/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.24/jcl-over-slf4j-1.7.24.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-data-jpa/1.5.2.RELEASE/spring-boot-starter-data-jpa-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-aop/1.5.2.RELEASE/spring-boot-starter-aop-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/aspectj/aspectjweaver/1.8.9/aspectjweaver-1.8.9.jar:/Users/ronaldpitt/.m2/repository/org/springframework/boot/spring-boot-starter-jdbc/1.5.2.RELEASE/spring-boot-starter-jdbc-1.5.2.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/apache/tomcat/tomcat-jdbc/8.5.11/tomcat-jdbc-8.5.11.jar:/Users/ronaldpitt/.m2/repository/org/apache/tomcat/tomcat-juli/8.5.11/tomcat-juli-8.5.11.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-jdbc/4.3.7.RELEASE/spring-jdbc-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/javax/transaction/javax.transaction-api/1.2/javax.transaction-api-1.2.jar:/Users/ronaldpitt/.m2/repository/org/springframework/data/spring-data-jpa/1.11.1.RELEASE/spring-data-jpa-1.11.1.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-orm/4.3.7.RELEASE/spring-orm-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-tx/4.3.7.RELEASE/spring-tx-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/springframework/spring-aspects/4.3.7.RELEASE/spring-aspects-4.3.7.RELEASE.jar:/Users/ronaldpitt/.m2/repository/mysql/mysql-connector-java/5.1.39/mysql-connector-java-5.1.39.jar:/Users/ronaldpitt/.m2/repository/org/hibernate/hibernate-entitymanager/5.2.9.Final/hibernate-entitymanager-5.2.9.Final.jar:/Users/ronaldpitt/.m2/repository/net/bytebuddy/byte-buddy/1.6.6/byte-buddy-1.6.6.jar:/Users/ronaldpitt/.m2/repository/org/thymeleaf/thymeleaf-spring3/3.0.3.RELEASE/thymeleaf-spring3-3.0.3.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/thymeleaf/thymeleaf/2.1.5.RELEASE/thymeleaf-2.1.5.RELEASE.jar:/Users/ronaldpitt/.m2/repository/org/unbescape/unbescape/1.1.0.RELEASE/unbescape-1.1.0.RELEASE.jar com.ronone.Application
objc[705]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java (0x10a2ef4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10a3b74e0). One of the two will be used. Which one is undefined.
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.2.RELEASE)
2017-05-12 21:48:45.407 INFO 705 --- [ main] com.ronone.Application : Starting Application on Ronalds-MacBook-Pro.local with PID 705 (/Users/ronaldpitt/Desktop/TonerStock/target/classes started by ronaldpitt in /Users/ronaldpitt/Desktop/TonerStock)
2017-05-12 21:48:45.411 INFO 705 --- [ main] com.ronone.Application : No active profile set, falling back to default profiles: default
2017-05-12 21:48:45.661 INFO 705 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@77be656f: startup date [Fri May 12 21:48:45 EDT 2017]; root of context hierarchy
2017-05-12 21:48:47.203 INFO 705 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$fd5e7927] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2017-05-12 21:48:47.646 INFO 705 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-05-12 21:48:47.670 INFO 705 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2017-05-12 21:48:47.671 INFO 705 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.11
2017-05-12 21:48:47.821 INFO 705 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2017-05-12 21:48:47.821 INFO 705 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2164 ms
2017-05-12 21:48:48.029 INFO 705 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2017-05-12 21:48:48.035 INFO 705 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-05-12 21:48:48.036 INFO 705 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-05-12 21:48:48.036 INFO 705 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-05-12 21:48:48.036 INFO 705 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2017-05-12 21:48:48.955 INFO 705 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2017-05-12 21:48:48.985 INFO 705 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2017-05-12 21:48:49.118 INFO 705 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.2.9.Final}
2017-05-12 21:48:49.120 INFO 705 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2017-05-12 21:48:49.302 INFO 705 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2017-05-12 21:48:49.441 INFO 705 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2017-05-12 21:48:49.709 WARN 705 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ronone.entities.Buyers.managers in com.ronone.entities.Manager.buyers
2017-05-12 21:48:49.716 INFO 705 --- [ main] o.apache.catalina.core.StandardService : Stopping service Tomcat
2017-05-12 21:48:49.735 INFO 705 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-05-12 21:48:49.745 ERROR 705 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ronone.entities.Buyers.managers in com.ronone.entities.Manager.buyers
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
at com.ronone.Application.main(Application.java:9) [classes/:na]
Caused by: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.ronone.entities.Buyers.managers in com.ronone.entities.Manager.buyers
at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:775) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:725) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:54) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1621) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1589) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:278) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:858) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:885) ~[hibernate-core-5.2.9.Final.jar:5.2.9.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:370) ~[spring-orm-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:359) ~[spring-orm-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
... 16 common frames omitted
答案 0 :(得分：0)
您的mappedBy值不正确。在Manager课程中，进行以下更改：
@OneToMany(targetEntity = Buyers.class, mappedBy = "manager", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private Set<Buyers> buyers;
您的代码失败的原因是因为它应指向的ManyToOne被称为manager而未被称为managers。