org.springframework.dao.DataIntegrityViolationException: not-null property references a null or transient value: com.lcy.po.AuthorAdmin.authorUsername; nested exception is org.hibernate.PropertyValueException: not-null property references a null or transient value: com.lcy.po.AuthorAdmin.authorUsername
at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:648)
at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
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.update(HibernateTemplate.java:705)
at org.springframework.orm.hibernate3.HibernateTemplate.update(HibernateTemplate.java:701)
at com.lcy.dao.author.admin.AuthorAdminDaoImpl.updateAuthorAdmin(AuthorAdminDaoImpl.java:48)
at com.lcy.service.author.admin.AuthorAdminServiceImpl.updateAuthorAdmin(AuthorAdminServiceImpl.java:47)
at com.lcy.action.author.admin.AuthorAdminAction.updateAuthorAdmin(AuthorAdminAction.java:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
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:248)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
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:248)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:485)
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 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:619)
Caused by: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.lcy.po.AuthorAdmin.authorUsername
at org.hibernate.engine.Nullability.checkNullability(Nullability.java:95)
at org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:292)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:151)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:49)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1028)
at org.springframework.orm.hibernate3.HibernateAccessor.flushIfNecessary(HibernateAccessor.java:390)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:407)
... 71 more
dao’s method
public void updateAuthorAdmin(AuthorAdmin aa) {
try {
basedao.getTemplate().update(aa);
System.out.println("dao updateAuthorAdmin suc");
} catch (Exception e) {
System.out.println("dao updateAuthorAdmin error");
e.printStackTrace();
throw new RuntimeException();
}
@Override
public AuthorAdmin getAuthorAdmin(Long id) {
AuthorAdmin authorAdmin = basedao.getTemplate().get(AuthorAdmin.class,
id);
if (authorAdmin == null) {
System.out.println("dao getAuthorAdmin没有获得对象");
}
System.out.println("dao getAuthorAdmin成功获得对象");
return authorAdmin;
}action layer
public class AuthorAdminAction extends BaseAction implements
ModelDriven<AuthorAdmin>{
private AuthorAdmin authoradmin = new AuthorAdmin();
@Override
public AuthorAdmin getModel() {
return authoradmin;
}
public String getAuthorAdmin() {
authoradmin= iauthoradminservice.getAuthorAdmin(authoradmin.getAuthorId());
System.out.println("action getAuthorAdmin suc");
return "getSuccess";
}
public String updateAuthorAdmin() {
iauthoradminservice.updateAuthorAdmin(authoradmin);
System.out.println("action updateAuthorAdmin suc");
return "updateSuccess";
}
}JSP page jumps based on id
<a href="${pageContext.request.contextPath}/get_AuthorAdmin?authorId=<s:property value="#obj.authorId"/>"></a>Enter the modification form
<s:form action="update_AuthorAdmin" method="post">
<s:hidden name="authorId" value="%{model.authorId}"></s:hidden>
<s:textfield name="%{model.authorUsername}" label="用户名"></s:textfield>
<s:textfield name="%{model.authorPwd}" label="密码"></s:textfield>
<s:textfield name="%{model.authorName}" label="姓名"></s:textfield>
<s:textfield name="%{model.authorSex}" label="性别"></s:textfield>
<s:textfield name="%{model.authorBirth}" label="生日"></s:textfield>
<s:textfield name="%{model.authorRegion}" label="作者区域"></s:textfield>
<s:textfield name="%{model.authorAddress}" label="通讯地址"></s:textfield>
<s:textfield name="%{model.authorPost}" label="职称"></s:textfield>
<s:textfield name="%{model.authorJob}" label="职业"></s:textfield>
<s:textfield name="%{model.authorCompany}" label="工作单位"></s:textfield>
<s:textfield name="%{model.authorDegree}" label="学历"></s:textfield>
<s:textfield name="%{model.authorMajor}" label="专业方向"></s:textfield>
<s:textfield name="%{model.authorTitle}" label="文章标题"></s:textfield>
<s:textfield name="%{model.authorMail}" label="E-mail"></s:textfield>
<s:textfield name="%{model.authorPhone}" label="电话"></s:textfield>
<s:textfield name="%{model.authorInfo}" label="个人简介"></s:textfield>
<s:submit value="修改"></s:submit>
</s:form>struct2.xml
<package name="authorAdmin" extends="struts-default">
<action name="*_*" class="com.lcy.action.author.admin.AuthorAdminAction"
method="{1}{2}">
<result name="saveSuccess" type="redirectAction">list_{2}.action</result>
<result name="updateSuccess" type="redirectAction">list_{2}.action</result>
<result name="loginSuccess" type="redirectAction">list_{2}.action</result>
<result name="removeSuccess" type="redirectAction">list_{2}.action</result>
<result name="listSuccess">/{2}/{1}/{1}Success.jsp</result>
<result name="getSuccess">/{2}/update/update.jsp</result>
</action>
</package>Fields of entity classes also have mapping
private Long authorId;
private String authorUsername;
private String authorPwd;
private String authorName;
private String authorSex;
private String authorBirth;
private String authorRegion;
private String authorAddress;
private String authorPost;
private String authorJob;
private String authorCompany;
private String authorDegree;
private String authorMajor;
private String authorTitle;
private String authorMail;
private String authorPhone;
private String authorInfo;
private Timestamp gmtCreate;
private Timestamp gmtModified;
private Set documentInfos = new HashSet(0);<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.lcy.po.AuthorAdmin" table="author_admin" catalog="ssh">
<id name="authorId" type="java.lang.Long">
<column name="author_id" />
<generator class="identity" />
</id>
<property name="authorUsername" type="java.lang.String">
<column name="author_username" length="20" not-null="true">
<comment>用户名</comment>
</column>
</property>
<property name="authorPwd" type="java.lang.String">
<column name="author_pwd" length="20" not-null="true">
<comment>密码</comment>
</column>
</property>
<property name="authorName" type="java.lang.String">
<column name="author_name" length="20">
<comment>姓名</comment>
</column>
</property>
<property name="authorSex" type="java.lang.String">
<column name="author_sex" length="2">
<comment>性别</comment>
</column>
</property>
<property name="authorBirth" type="java.lang.String">
<column name="author_birth" length="20">
<comment>生日</comment>
</column>
</property>
<property name="authorRegion" type="java.lang.String">
<column name="author_region" length="50">
<comment>作者区域</comment>
</column>
</property>
<property name="authorAddress" type="java.lang.String">
<column name="author_address" length="100">
<comment>通讯地址</comment>
</column>
</property>
<property name="authorPost" type="java.lang.String">
<column name="author_post" length="50">
<comment>职称</comment>
</column>
</property>
<property name="authorJob" type="java.lang.String">
<column name="author_job" length="50">
<comment>职业</comment>
</column>
</property>
<property name="authorCompany" type="java.lang.String">
<column name="author_company" length="50">
<comment>工作单位</comment>
</column>
</property>
<property name="authorDegree" type="java.lang.String">
<column name="author_degree" length="40">
<comment>学历</comment>
</column>
</property>
<property name="authorMajor" type="java.lang.String">
<column name="author_major" length="50">
<comment>专业方向</comment>
</column>
</property>
<property name="authorTitle" type="java.lang.String">
<column name="author_title" length="20">
<comment>文章标题</comment>
</column>
</property>
<property name="authorMail" type="java.lang.String">
<column name="author_mail" length="100">
<comment>E-mail</comment>
</column>
</property>
<property name="authorPhone" type="java.lang.String">
<column name="author_phone" length="11">
<comment>电话</comment>
</column>
</property>
<property name="authorInfo" type="java.lang.String">
<column name="author_info" length="65535">
<comment>个人简介</comment>
</column>
</property>
<property name="gmtCreate" type="java.sql.Timestamp">
<column name="gmt_create" length="19">
<comment>创建时间</comment>
</column>
</property>
<property name="gmtModified" type="java.sql.Timestamp">
<column name="gmt_modified" length="19">
<comment>修改时间</comment>
</column>
</property>
<set name="documentInfos" inverse="true">
<key>
<column name="author_id" not-null="true">
<comment>稿件作者</comment>
</column>
</key>
<one-to-many class="com.lcy.po.DocumentInfo" />
</set>
</class>
</hibernate-mapping>
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Let’s take a look at the error first. authorUsername is a non-null attribute and has a non-null check. You submitted a null value, so an error was reported.
Possible causes:
Let’s take a look at basedao’s method