[英]Could not commit JPA transaction / Error while committing the transaction / NullPointerException
[英]Could not commit JPA transaction while trying to do the registration in a spring project
我正在为 Spring 项目使用 netbeans ide。 我在尝试注册时不断收到错误无法提交 jpa 事务(将数据保存在 MySQL 数据库中)。 这是错误堆栈:
出现意外错误(类型=内部服务器错误,状态=500)。 无法提交 JPA 事务; 嵌套异常是 javax.persistence.RollbackException:提交事务时出错 org.springframework.transaction.TransactionSystemException:无法提交 JPA 事务; nested exception is javax.persistence.RollbackException: Error while committing the transaction at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:571) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java: 743) at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:711) at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:654) at org.springframework.transaction.interceptor.TransactionAspectSupport .invokeWithinTransaction(TransactionAspectSupport.java:407) 在 org.springframework.transaction.interceptor.TransactionInt erceptor.invoke(TransactionInterceptor.java:119) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) at org .springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:174) at org.springframework.aop.framework .ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) 在 org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterce ptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) at jdk.proxy4/jdk .proxy4.$Proxy108.save(Unknown Source) at net.cdac.TMS.service.UserServiceImpl.save(UserServiceImpl.java:38) at net.cdac.TMS.web.UserRegistrationController.registerUserAccount(UserRegistrationController.java:36) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl .invoke(德尔 egatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) at org .springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) at org.springframework.web .servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) at org.springframework.web.s ervlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet. DispatcherServlet.doDispatch(DispatcherServlet.java:1070) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) at org .springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) 在 javax.servlet.Z80791B3AE7002CB88C8HttpServlet.Z80791B3AE7002CB88C8HttpServlet.D9FAAF8 ice(HttpServlet.java:681) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.catalina .core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java :53) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) 在 org.ZB6EFD606D1 18D0F62066E31419FF04CCZ.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327) at org.springframework.security.web.access.intercept. FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy. java:336) 在 org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.Z93F725A07423FE1C889F448B 33D21F46Z:122) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework .security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain .doFilter(FilterChainProxy.java:336) 在 org.springframework.security.web.authen tication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter. java:149) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) at org.springframework .security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.Z93F725A07423FE1C889F448B33D21F4 6Z:336) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:223) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:217) at org.springframework .security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) at org.springframework.security.web.authentication .logout.LogoutFilter.doFilter(LogoutFilter.java:89) 在 org.springframework.security.web.FilterChain Proxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:132) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 117) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) at org.springframework.security .web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:7265C75C75705EB75) 984033E06189DZ.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter( SecurityContextPersistenceFilter.java:112) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:82) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org .springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilte r.java:55) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) at org.springframework .security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter (FilterChainProxy.java:336) at org.springframework.security.web.FilterChainProxy.doFilterInternal(Filt erChainProxy.java:211) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) at org.springframework.web .filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162 ) 在 org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) t org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:162) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.apache. catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.Applica tionFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org .apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve .java:197) 在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.Z93F725A07423FE1C889F448B 3D21F46Z:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves .ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at or g.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1789) at org.apache.tomcat.util. net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.Z93F725A07423FE1C889F44 8B33D21F46Z:61) at java.base/java.lang.Thread.run(Thread.java:833) Caused by: javax.persistence.RollbackException: Error while committing the transaction at org.hibernate.internal.ExceptionConverterImpl.convertCommitException(ExceptionConverterImpl. java:81) at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:104) at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:562)... 110 more Caused by: java.lang.ClassCastException: class net.cdac.TMS.model.User cannot be cast to class java.ZF98ED07A4D5F50F7DE1410D905F1477F Z.Serializable (net.cdac.TMS.model.User 在加载器 org.springframework.boot.devtools.restart.classloader.RestartClassLoader @4df620d4 的未命名模块中; java.io.Serializable is in module java.base of loader 'bootstrap') at org.hibernate.type.CollectionType.getKeyOfOwner(CollectionType.java:446) at org.hibernate.engine.internal.Collections.processReachableCollection(Collections.java :166) at org.hibernate.event.internal.FlushVisitor.processCollection(FlushVisitor.java:53) at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:104) at org.hibernate.event.internal. AbstractVisitor.processValue(AbstractVisitor.java:65) at org.hibernate.event.internal.AbstractVisitor.processEntityPropertyValues(AbstractVisito r.java:59) at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:183) at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:107) at org.hibernate .event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:229) at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:93) at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java :39) 在 org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventO nEachListener(EventListenerGroupImpl.java:107) at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1407) at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:489) at org.hibernate.internal.SessionImpl .flushBeforeTransactionCompletion(SessionImpl.java:3290) at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2425) at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:449) at org. hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCa llback(JdbcResourceLocalTransactionCoordinatorImpl.java:183) at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$300(JdbcResourceLocalTransactionCoordinatorImpl.java:40) at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl $TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:281) at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:101)... 111 more
Role.java 代码:
package net.cdac.TMS.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "role")
public class Role {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
public Role() {
}
public Role(String name) {
super();
this.name = name;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
User.java 代码:
package net.cdac.TMS.model;
import java.util.Collection;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import javax.persistence.JoinColumn;
@Entity
@Table(name = "user", uniqueConstraints = @UniqueConstraint(columnNames = "uemailid"))
public class User {
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(name = "uname")
private String uName;
@Id
@Column(name = "uemailid")
private String uemailid;
private String upassword;
private String usecurityQ;
private String usecurityA;
@ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
@JoinTable(
name = "users_roles",
joinColumns = @JoinColumn(
name = "user_id", referencedColumnName = "id"),
inverseJoinColumns = @JoinColumn(
name = "role_id", referencedColumnName = "id"))
private Collection<Role> roles;
public User() {
}
public User(String email, String password) {
}
public User(String Name, String email, String password, String securityQ, String securityA, Collection<Role> roles) {
super();
this.uName = Name;
this.uemailid = email;
this.upassword = password;
this.usecurityA = securityQ;
this.usecurityA = securityA;
this.roles = roles;
}
public String getUemailid() {
return uemailid;
}
public void setUemailid(String uemailid) {
this.uemailid = uemailid;
}
public String getuName() {
return uName;
}
public void setuName(String uName) {
this.uName = uName;
}
public String getUpassword() {
return upassword;
}
public void setUpassword(String upassword) {
this.upassword = upassword;
}
public String getUsecurityQ() {
return usecurityQ;
}
public void setUsecurityQ(String usecurityQ) {
this.usecurityQ = usecurityQ;
}
public String getUsecurityA() {
return usecurityA;
}
public void setUsecurityA(String usecurityA) {
this.usecurityA = usecurityA;
}
public Collection<Role> getRoles() {
return roles;
}
public void setRoles(Collection<Role> roles) {
this.roles = roles;
}
}
login.html 代码:
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>User Login</title>
</head>
<body>
<header>
<div class="header-1">
<img class="logo" src="../images/cdacW.png" alt="C-DAC">
</div>
</header>
<div class="form-center">
<div class="center">
<h1>Login</h1>
<form th:action="@{/UserLogin}" method="post">
<!-- error message -->
<div th:if="${param.error}">
<div class="alert alert-danger">Invalid username or
password.</div>
</div>
<!-- logout message -->
<div th:if="${param.logout}">
<div class="alert alert-info">You have been logged out.</div>
</div>
<div class="txt_field">
<input type="text" required>
<span></span>
<label>Email ID</label>
</div>
<div class="txt_field">
<input type="password" required>
<span></span>
<label>Password</label>
</div>
<div class="pass"><a href="/" th:href="@{/forgotPasswordUser}">Forgot Password?</a></div>
<input type="submit" value="Login">
<div class="signup_link">
Not a member? <a href="/" th:href="@{/registration}">Sign-Up</a>
</div>
</form>
</div>
</div>
</body>
</html>
注册.html代码:
<!DOCTYPE html>
<html>
<head>
<title>Register</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css">
</head>
<body>
<header>
<div class="header-1">
<img class="logo" src="../images/cdacW.png" alt="C-DAC">
</div>
</header>
<!-- success message -->
<div th:if="${param.success}">
<div class="alert alert-info">You have successfully registered!</div>
</div>
<div class="registeration-form">
<h1>Register here</h1>
<form th:action="@{/registration}" method="post" th:object="${user}">
<p>Full Name : </p>
<input type="text" name="fullname" placeholder = "Full Name" th:field="*{uName}">
<p>Email id: </p>
<input type="email" name="email" placeholder = "Email Id" th:field="*{uemail}">
<p>Password : </p>
<input type="password" name="password" placeholder = "Password" th:field="*{upassword}" required autofocus="autofocus">
<p>Photo: </p>
<!--input type="image" name="image" placeholder = "your photo"-->
<p>Security Question: </p>
<label for="SecurityQ"> </label>
<select name="securityq" id="securityq" th:field="*{usecurityQ}">
<option value="Your Favourite color ">Your Favourite color</option>
<option value="Your first pet's name">Your first pet's name</option>
<option value="Your mother's maiden name">Your mother's maiden name</option>
<option value="Your first school">Your first school</option>
<option value="Your Favourite food ">Your Favourite food</option>
<option value="The city you live in">The city you live in</option>
</select>
<p>Security Answer : </p>
<input type="text" name="securityA" placeholder = "Your answer" th:field="*{usecurityA}">
<p><button type="submit">Register</button></p>
<h5>Already have an account? </h5>
<h4><a href="/" th:href="@{/UserLogin}"> Login</a></h4>
</form>
</div>
</body>
</html>
UserRegisterationController.java 代码:
package net.cdac.TMS.web;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import net.cdac.TMS.service.UserService;
import net.cdac.TMS.web.dto.UserRegistrationDto;
@Controller
@RequestMapping("/registration")
public class UserRegistrationController {
private UserService userService;
public UserRegistrationController(UserService userService) {
super();
this.userService = userService;
}
@ModelAttribute("user")
public UserRegistrationDto userRegistrationDto() {
return new UserRegistrationDto();
}
@GetMapping
public String showRegistrationForm() {
return "registration";
}
@PostMapping
public String registerUserAccount(@ModelAttribute("user") UserRegistrationDto registrationDto) {
userService.save(registrationDto);
return "redirect:/registration?success";
}
}
主控制器.java代码:
package net.cdac.TMS.web;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class MainController {
@GetMapping("/UserLogin")
public String login() {
return "UserLogin";
}
@GetMapping("/")
public String home() {
return "GuestHome";
}
}
如何消除此错误? 这个错误的原因是什么? 预先感谢您的帮助。
始终检查引起的任何异常。 为你:
Caused by: java.lang.ClassCastException: class net.cdac.TMS.model.User cannot be cast to class java.io.Serializable
让您的User
class 实现Serializable并且应该修复它。
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