【发布时间】：2015-11-03 17:44:43
【问题描述】：
我在 Springboot 中有一个 RESTful Web 服务，其端点定义为：
@RequestMapping(
value="/api/users",
method=RequestMethod.POST,
consumes=MediaType.APPLICATION_JSON_VALUE,
produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<User> createUser(
@Valid @RequestBody User user, BindingResult result) {
if (result.hasErrors()) {
return new ResponseEntity<User>(user, HttpStatus.BAD_REQUEST);
}
User savedUser = userService.create(user);
return new ResponseEntity<User>(savedUser, HttpStatus.CREATED);
}
并且用户模式定义为：
CREATE TABLE User (
userId BIGINT GENERATED BY DEFAULT AS IDENTITY (START WITH 1, INCREMENT BY 1) NOT NULL,
username VARCHAR(100) NOT NULL UNIQUE,
password VARCHAR(100) NOT NULL,
email VARCHAR(100) NOT NULL UNIQUE,
mobile BIGINT NOT NULL UNIQUE,
PRIMARY KEY (userId)
);
我想确保使用相同用户名/电子邮件或手机的用户不会被注册。在我的 Postman 客户端中，当我使用重复值发出 POST 请求时，我收到 500 Internal Server Error 并且以下错误字符串出现在我的服务器端：
2015-08-11 18:27:10.454 WARN 4644 --- [nio-8080-exec-3] o.h.engine.jdbc.spi.Sql
ExceptionHelper : SQL Error: -104, SQLState: 23505
2015-08-11 18:27:10.454 ERROR 4644 --- [nio-8080-exec-3] o.h.engine.jdbc.spi.Sql
ExceptionHelper : integrity constraint violation: unique constraint or index v
iolation; SYS_CT_10094 table: USER
2015-08-11 18:27:10.494 ERROR 4644 --- [nio-8080-exec-3] o.a.c.c.C.[.[.[/].[disp
atcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context
with path [] threw exception [Request processing failed; nested exception is or
g.springframework.dao.DataIntegrityViolationException: could not execute stateme
nt; SQL [n/a]; constraint [SYS_CT_10094]; nested exception is org.hibernate.exce
ption.ConstraintViolationException: could not execute statement] with root cause
org.hsqldb.HsqlException: integrity constraint violation: unique constraint or i
ndex violation; SYS_CT_10094 table: USER
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.Constraint.getException(Unknown Source)
at org.hsqldb.index.IndexAVLMemory.insert(Unknown Source)
at org.hsqldb.persist.RowStoreAVL.indexRow(Unknown Source)
at org.hsqldb.TransactionManager2PL.addInsertAction(Unknown Source)
at org.hsqldb.Session.addInsertAction(Unknown Source)
at org.hsqldb.Table.insertSingleRow(Unknown Source)
at org.hsqldb.StatementDML.insertRowSet(Unknown Source)
at org.hsqldb.StatementInsert.getResult(Unknown Source)
at org.hsqldb.StatementDMQL.execute(Unknown Source)
at org.hsqldb.Session.executeCompiledStatement(Unknown Source)
at org.hsqldb.Session.execute(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.executeUpdate(Unknown Source)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(
ResultSetReturnImpl.java:208)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAn
dExtract(IdentityGenerator.java:96)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(Abstr
actReturningDelegate.java:58)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(Abstrac
tEntityPersister.java:3032)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(Abstrac
tEntityPersister.java:3558)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(Enti
tyIdentityInsertAction.java:98)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:492)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(Ac
tionQueue.java:197)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java
:181)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:216)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertActio
n(AbstractSaveEventListener.java:334)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrR
eplicate(AbstractSaveEventListener.java:289)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(Ab
stractSaveEventListener.java:195)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGenera
tedId(AbstractSaveEventListener.java:126)
at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWit
hGeneratedId(JpaPersistEventListener.java:84)
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTran
sient(DefaultPersistEventListener.java:206)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(De
faultPersistEventListener.java:149)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(De
faultPersistEventListener.java:75)
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntit
yManagerImpl.java:1181)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEnti
tyManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:344)
at com.sun.proxy.$Proxy76.persist(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityMa
nagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291)
at com.sun.proxy.$Proxy76.persist(Unknown Source)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.s
ave(SimpleJpaRepository.java:433)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.data.repository.core.support.RepositoryFactorySup
port$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.jav
a:436)
at org.springframework.data.repository.core.support.RepositoryFactorySup
port$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:421)
at org.springframework.data.repository.core.support.RepositoryFactorySup
port$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:393)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:179)
at org.springframework.data.repository.core.support.RepositoryFactorySup
port$DefaultMethodInvokingMethodInterceptor.invoke(RepositoryFactorySupport.java
:506)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.
proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.
invokeWithinTransaction(TransactionAspectSupport.java:281)
at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterc
eptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPos
tProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetad
ataPostProcessor.java:122)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invok
e(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami
cAopProxy.java:207)
at com.sun.proxy.$Proxy81.save(Unknown Source)
at favorite.ws.service.UserServiceBean.create(UserServiceBean.java:28)
at favorite.ws.web.api.UserController.createUser(UserController.java:73)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvok
e(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeF
orRequest(InvocableHandlerMethod.java:137)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocabl
eHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingH
andlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingH
andlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapt
er.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(Dispatch
erServlet.java:959)
at org.springframework.web.servlet.DispatcherServlet.doService(Dispatche
rServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(Frame
workServlet.java:967)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServ
let.java:869)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkSer
vlet.java:843)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at favorite.ws.filters.SimpleCORSFilter.doFilter(SimpleCORSFilter.java:2
2)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInterna
l(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR
equestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterIntern
al(CharacterEncodingFilter.java:85)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR
equestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica
torBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp
11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(
AbstractProtocol.java:668)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpo
int.java:1521)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoin
t.java:1478)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskTh
read.java:61)
at java.lang.Thread.run(Thread.java:745)
谁能告诉我怎么了？为什么我收到 500 内部服务器错误而不是 400 错误请求错误？我该如何解决这个问题？
如果用户选择了一个已经在使用的用户名（例如），我希望服务器发送一个响应告诉他。我如何实现这一目标？告诉他用户名不是唯一的或电子邮件已注册（即用户名/电子邮件/手机有不同的错误消息）？
谢谢！
【问题讨论】：
标签： sql spring-boot hsqldb backend