Spring hsqldb 中的错误“完整性约束违规：NOT NULL 检查约束”

Question

我是数据库和服务器端编程的新手，事实上，这是我第一次这样做。我在 hsql 中的 schema.sql 定义为：

DROP TABLE User IF EXISTS;
DROP TABLE Favor IF EXISTS;

CREATE TABLE User (
    userId BIGINT GENERATED BY DEFAULT AS IDENTITY (START WITH 1, INCREMENT BY 1) NOT NULL,
    username VARCHAR(100) NOT NULL,
    password VARCHAR(100) NOT NULL,
    email VARCHAR(100) NOT NULL,
    mobile BIGINT NOT NULL,
    PRIMARY KEY (userId)
);

CREATE TABLE Favor (
    favorId BIGINT GENERATED BY DEFAULT AS IDENTITY (START WITH 1, INCREMENT BY 1) NOT NULL,
    favorName VARCHAR(100) NOT NULL,
    favorDesc VARCHAR(1000) NOT NULL,
    datePosted TIMESTAMP NOT NULL,
    compensation VARCHAR(200) NOT NULL,
    dateExpiring TIMESTAMP NOT NULL,
    posterId BIGINT NOT NULL,
    acceptorId BIGINT,
    PRIMARY KEY (favorId),
    FOREIGN KEY (posterId) REFERENCES User (userId),
    FOREIGN KEY (acceptorId) REFERENCES User (userId)
);

我的控制器（UserController.java 和 FavorController.java）看起来像：

@RestController
public class UserController {

    @Autowired
    private UserService userService;

    @RequestMapping(
            value="/api/users",
            method=RequestMethod.GET,
            produces=MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Collection<User>> getUsers() {
        Collection<User> users = userService.findAll();
        return new ResponseEntity<Collection<User>>(users, HttpStatus.OK);
    }

    @RequestMapping(
            value="/api/users",
            method=RequestMethod.POST,
            consumes=MediaType.APPLICATION_JSON_VALUE,
            produces=MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<User> createUser(
            @RequestBody User user) {

        User savedUser = userService.create(user);
        return new ResponseEntity<User>(savedUser, HttpStatus.CREATED);

    }
}

Favor.java

@RestController
public class FavorController {

    @Autowired
    private FavorService favorService;

    @RequestMapping(//denotes this is where http requests should go
            value="/api/favors",
            method=RequestMethod.GET,
            produces=MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Collection<Favor>> getFavors() {//responseentity-> converts it into JSON and inserts it into HTTP response body
        Collection<Favor> favors = favorService.findAll();
        return new ResponseEntity<Collection<Favor>>(favors, HttpStatus.OK);//status code of 200
    }

    @RequestMapping(
            value="/api/favors/{id}",
            method=RequestMethod.GET,
            produces=MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Favor> getFavor(@PathVariable("id") Long id) {
        Favor favor = favorService.findOne(id);
        if (favor == null)
            return new ResponseEntity<Favor>(HttpStatus.NOT_FOUND);//status code of 404
        return new ResponseEntity<Favor>(favor, HttpStatus.OK);
    }

    @RequestMapping(
            value="/api/favors",
            method=RequestMethod.POST,
            consumes=MediaType.APPLICATION_JSON_VALUE,
            produces=MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Favor> createFavor(
            @RequestBody Favor favor) {

        Favor savedFavor = favorService.create(favor);
        return new ResponseEntity<Favor>(savedFavor, HttpStatus.CREATED); //status code of 201

    }   
}

当我运行 springboot 应用程序并发出 POST 请求以添加 Favor 时，我在命令提示符（服务正在运行的位置）中得到以下内容。我说不出这是什么。有人可以帮帮我吗？

2015-08-09 00:40:42.127  INFO 10092 --- [nio-8080-exec-1] o.a.c.c.C.

[Tomcat].[lo
calhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'
2015-08-09 00:40:42.127  INFO 10092 --- [nio-8080-exec-1] o.s.web.servlet.Dispat
cherServlet        : FrameworkServlet 'dispatcherServlet': initialization starte
d
2015-08-09 00:40:42.161  INFO 10092 --- [nio-8080-exec-1] o.s.web.servlet.Dispat
cherServlet        : FrameworkServlet 'dispatcherServlet': initialization comple
ted in 33 ms
2015-08-09 00:40:42.424  WARN 10092 --- [nio-8080-exec-2] o.h.engine.jdbc.spi.Sq
lExceptionHelper   : SQL Error: -10, SQLState: 23502
2015-08-09 00:40:42.425 ERROR 10092 --- [nio-8080-exec-2] o.h.engine.jdbc.spi.Sq
lExceptionHelper   : integrity constraint violation: NOT NULL check constraint;
SYS_CT_10105 table: FAVOR column: FAVORNAME
2015-08-09 00:40:42.438 ERROR 10092 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dis
patcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in contex
t with path [] threw exception [Request processing failed; nested exception is o
rg.springframework.dao.DataIntegrityViolationException: could not execute statem
ent; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.C
onstraintViolationException: could not execute statement] with root cause

org.hsqldb.HsqlException: integrity constraint violation: NOT NULL check constra
int; SYS_CT_10105 table: FAVOR column: FAVORNAME
        at org.hsqldb.error.Error.error(Unknown Source)
        at org.hsqldb.Table.enforceRowConstraints(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.$Proxy75.persist(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityMa
nagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291)
        at com.sun.proxy.$Proxy75.persist(Unknown Source)
        at org.springframework.data.jpa.repository.support.SimpleJpaRepository.s
ave(SimpleJpaRepository.java:433)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at org.springframework.data.repository.core.support.RepositoryFactorySup
port$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.$Proxy77.save(Unknown Source)
        at favorite.ws.service.FavorServiceBean.create(FavorServiceBean.java:34)

        at favorite.ws.web.api.FavorController.createFavor(FavorController.java:
52)
        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)

在我的 Sencha Touch 前端： FavorsModel.js

    Ext.define('FavorITe.model.FavorsModel', {
    extend: 'Ext.data.Model',
    requires: [
         'Ext.DateExtras'
    ],
    config: {
        idProperty: 'favorId',
        identifier: 'sequential',
        fields: [
            { name: 'favorId', type: 'int' },
            { name: 'favorName', type: 'string' },
            { name: 'favorDesc', type: 'string' },
            { name: 'datePosted', type: 'date' },
            { name: 'compensation', type: 'string' },
            { name: 'dateExpiring', type: 'date' }
        ],
        validations: [
            { type: 'presence', field: 'favorName', message: 'Favor\'s missing a name!' },
            { type: 'presence', field: 'favorDesc', message: 'Mind explaining the favor a little more?' },
            { type: 'presence', field: 'dateExpiring' }
        ],
    },

    checkDates: function (errors) {
        if (this.get('datePosted') > this.get('dateExpiring')) {
            errors.add(Ext.create('Ext.data.Error', {
                field  : 'dateExpiring', 
                message: 'Expiry date can\'t be before today\'s date!'
            }));
        }
    },

    validate: function () {
        var errors = this.callParent(arguments);
        this.checkDates(errors);
        console.log(errors);
        return errors;
    }
});

我发出 AJAX 请求的控制器：

    Ext.define('FavorITe.controller.RequestFavorForm', {
    extend: 'Ext.app.Controller',

    config: {
        refs: {
            cancelFavorButton: 'button[action=cancelFavor]',
            submitFavorButton: 'button[action=submitFavor]',
            requestFavorForm: 'requestFavorForm'
        },
        control: {
            cancelFavorButton: {
                tap: 'cancelRequestFavorForm'
            },
            submitFavorButton: {
                tap: 'submitRequestFavorForm'
            }
        }
    },

    cancelRequestFavorForm: function() {
        Ext.getCmp('start').animateActiveItem(0, {type: 'flip'});
    },

    submitRequestFavorForm: function() {
        var requestFavorForm = this.getRequestFavorForm();
        var currentFavor = requestFavorForm.getRecord();
        var newValues = requestFavorForm.getValues();

        currentFavor.set('favorName', newValues.favorName);
        currentFavor.set('favorDesc', newValues.favorDesc);
        currentFavor.set('compensation', newValues.compensation);
        currentFavor.set('dateExpiring', newValues.dateExpiring);
        currentFavor.set('datePosted', new Date());

        var errors = currentFavor.validate();

        if (!errors.isValid()) {
            errors.each(function(item, index, length) {
                Ext.Msg.alert('Wait!', errors.getByField(item.getField())[0].getMessage(), Ext.emptyFn);
            });
            currentFavor.reject();
            return;
        }

        var allFavorsStore = Ext.getStore('AllFavorsStore');
        console.log(currentFavor);
        Ext.Ajax.request({
            url: 'http://localhost:8080/api/favors',
            method: 'POST',
            jsonData: currentFavor,
            success: function() {
                console.log("success");
            },
            failure: function() {
                console.log("wooops");
            }
        });
        allFavorsStore.sync();

        Ext.getCmp('start').animateActiveItem(0, {type: 'slide', direction: 'up'});
    },

    //called when the Application is launched, remove if not needed
    launch: function(app) {

    }
});

Answer 1

正如错误所说，您没有在映射到列 favor.favorName 的 java 对象中设置值，而该列是 not null，因此您必须给它一个值。

问题可能出在favorService.create(favor);的代码中。