Field 'userID' doesn't have a default value问题

              版权声明：欢迎转载，若转载请给出本文链接                  https://blog.csdn.net/niaonao/article/details/78112792              </div><link rel="stylesheet" href="https://csdnimg.cn/release/phoenix/template/css/ck_htmledit_views-d7e2a68c7c.css"><div class="htmledit_views" id="content_views">

字段需要设置一个默认值

Caused by: java.sql.SQLException: Field 'userID' doesn't have a default value

一、新增记录出现异常

1.问题的出现，我在新增一个用户信息时，报的错误，不能添加记录到数据库；

2.详细异常信息

Hibernate: insert into t_user (uname, userAddress, userBirth, userEmail, userGender, userName, userPassword, userPhone) values (?, ?, ?, ?, ?, ?, ?, ?)
org.springframework.jdbc.UncategorizedSQLException: Hibernate operation: could not insert: [biz.entity.main.User]; uncategorized SQLException for SQL [insert into t_user (uname, userAddress, userBirth, userEmail, userGender, userName, userPassword, userPhone) values (?, ?, ?, ?, ?, ?, ?, ?)]; SQL state [HY000]; error code [1364]; Field 'userID' doesn't have a default value; nested exception is java.sql.SQLException: Field 'userID' doesn't have a default valueat org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:83)at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)at org.springframework.orm.hibernate3.HibernateAccessor.convertJdbcAccessException(HibernateAccessor.java:424)at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:410)at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411)at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:683)at common.dao.hibernate.BaseHibernateDao.save(BaseHibernateDao.java:57)at biz.web.service.impl.BizService.addSimpleUser(BizService.java:44)at biz.web.action.sys.SimpleUserAction.add(SimpleUserAction.java:80)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:446)at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:285)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:238)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:238)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:325)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:544)at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at common.filter.SessionFilter.doFilter(SessionFilter.java:69)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)at java.lang.Thread.run(Thread.java:744)
Caused by: java.sql.SQLException: Field 'userID' doesn't have a default valueat com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4074)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4006)at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2468)at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2629)at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2719)at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2450)at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2371)at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2355)at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:139)at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:93)at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:56)at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2346)at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2853)at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:71)at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:320)at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56)at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50)at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:713)at org.hibernate.impl.SessionImpl.save(SessionImpl.java:701)at org.hibernate.impl.SessionImpl.save(SessionImpl.java:697)at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:686)at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:1)at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)... 73 more

二、异常信息分析

1.insert语句执行失败

异常显示就是insert插入sql语句执行错误导致添加记录到数据库失败；

根本原因就是Field 'userID' doesn't have a default value；

字段userID没有设置默认值；

下面该表的create语句中确实没有给userID设置默认值；

CREATE TABLE `t_user` (
`userID` int(11) NOT NULL,
`uname` varchar(20) default NULL,
`userAddress` varchar(100) default NULL,
`userBirth` varchar(10) default NULL,
`userEmail` varchar(50) default NULL,
`userGender` int(11) default NULL,
`userName` varchar(20) default NULL,
`userPassword` varchar(150) default NULL,
`userPhone` varchar(255) default NULL,
PRIMARY KEY (`userID`)
);

导致insert语句对应的userID字段没有插入数据，而该字段不允许为null导致的；

Hibernate: insert into t_user (uname, userAddress, userBirth, userEmail, userGender, userName, userPassword, userPhone) values (?, ?, ?, ?, ?, ?, ?, ?)

三、解决异常

3-1.给字段设置默认值

这种问题简单的解决办法就是设置默认值,但是当前字段userID是主键不能设置默认值；

`userAddress` varchar(100) default '阿拉加斯加'

3-2.Hibernate配置检查

那可能是Hibernate配置出现了问题；然后找到当前表对应的Entity实体类

字段userID的配置

@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "userID", unique = true, nullable = false)
public Integer getUserId() {
return this.userId;
}

该字段设置了自增策略，指定不可为空，且是唯一的；
感觉没啥问题；再次测试新增一条记录还是失败；

3-3.数据库中表t_user的修改

然后就从数据表这里入手；

将当t_user的userID修改为自增

alter table t_user modify userID int auto_increment;

因为该字段有外键约束不允许修改；

索性就把表删了；新建表t_user；直接在设置字段自增且不为空；然后新增一条记录成功了；

CREATE TABLE `t_user` (
`userID` int(11) NOT NULL auto_increment,
`uname` varchar(20) default NULL,
`userAddress` varchar(100) default NULL,
`userBirth` varchar(10) default NULL,
`userEmail` varchar(50) default NULL,
`userGender` int(11) default NULL,
`userName` varchar(20) default NULL,
`userPassword` varchar(150) default NULL,
`userPhone` varchar(255) default NULL,
PRIMARY KEY (`userID`)
);

四、其他解决方法

1.修改mysql配置

打开my.ini，查找sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"修改为sql-mode="NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"然后重启MYSQL

设置默认值即可，当然这个字段不是主键的情况下；

MySQL 5 uses a strict mode which needs to be disabled. In Windows, Goto Start-->Programs-->MySQL->MySQL Instance Config Wizard. Follow through the Reconfigure Instance option-->Detailed Configuration-->Continue Next a few screens. At the bottom under Enable TCP/IP option there is 'Enable Strict Mode'. Deslect this option (no tick). Save changes and MySQL will restart.