我想将数据插入到包含复合键的表中。
我使用休眠 HQL。
我生成了一个 hbm 和 Java 类，并开发了一个函数以将新记录插入表中
到达插入新记录但同时会产生异常
这是用例.hbm
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 7 ao?t 2013 15:46:08 by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="com.dq.hibernate.model.UseCases" table="USE_CASES">
<composite-id name="id" class="com.dq.hibernate.model.UseCasesId">
<key-property name="upaId" type="string">
<column name="UPA_ID" length="15" />
</key-property>
<key-property name="lndcasesId" type="string">
<column name="LNDCASES_ID" length="40" />
</key-property>
<key-property name="parcelNo" type="string">
<column name="PARCEL_NO" length="20" />
</key-property>
<key-property name="parcelBlk" type="string">
<column name="PARCEL_BLK" length="3" />
</key-property>
<key-property name="parcelGrp" type="string">
<column name="PARCEL_GRP" length="5" />
</key-property>
</composite-id>
<many-to-one name="urbanPlan" class="com.dq.hibernate.model.UrbanPlan" update="false" insert="false" fetch="select">
<column name="UPA_ID" length="15"/>
</many-to-one>
<many-to-one name="parcel" class="com.dq.hibernate.model.Parcel" update="false" insert="false" fetch="select">
<column name="PARCEL_NO" length="20" />
<column name="PARCEL_BLK" length="3" />
<column name="PARCEL_GRP" length="5" />
</many-to-one>
<many-to-one name="landCases" class="com.dq.hibernate.model.LandCases" update="false" insert="false" fetch="select">
<column name="LNDCASES_ID" length="40" not-null="true"/>
</many-to-one>
<property name="ucaseOrderno" type="string">
<column name="UCASE_ORDERNO" length="20" />
</property>
<property name="ucaseIssuedate" type="date">
<column name="UCASE_ISSUEDATE" length="7"/>
</property>
<property name="ucaseDocno" type="string">
<column name="UCASE_DOCNO" length="20" />
</property>
<property name="ucaseDesc" type="string">
<column name="UCASE_DESC" length="500" />
</property>
<property name="ucasedatesys" type="date">
<column name="UCASEDATESYS" length="7" />
</property>
<property name="ucaseIssuedatehj" type="string">
<column name="UCASE_ISSUEDATEHJ" length="10" />
</property>
<property name="ucaseNote" type="string">
<column name="UCASE_NOTE" length="500" />
</property>
</class>
</hibernate-mapping>
这是 UseCases.java
package com.dq.hibernate.model;
// Generated 7 ao�t 2013 15:46:08 by Hibernate Tools 3.4.0.CR1
import java.util.Date;
/**
* UseCases generated by hbm2java
*/
public class UseCases implements java.io.Serializable {
private UseCasesId id;
private UrbanPlan urbanPlan;
private Parcel parcel;
private LandCases landCases;
private String ucaseOrderno;
private Date ucaseIssuedate;
private String ucaseDocno;
private String ucaseDesc;
private Date ucasedatesys;
private String ucaseIssuedatehj;
private String ucaseNote;
public UseCases() {
}
public UseCases(UrbanPlan urbanPlan, Parcel parcel,
LandCases landCases, String ucaseOrderno, Date ucaseIssuedate) {
this.urbanPlan = urbanPlan;
this.parcel = parcel;
this.landCases = landCases;
this.ucaseOrderno = ucaseOrderno;
this.ucaseIssuedate = ucaseIssuedate;
}
public UseCases(UseCasesId id) {
super();
this.id = id;
}
public UseCases(UrbanPlan urbanPlan, Parcel parcel, LandCases landCases,
String ucaseOrderno, Date ucaseIssuedate, String ucaseDocno,
String ucaseDesc, Date ucasedatesys, String ucaseIssuedatehj, String ucaseNote) {
super();
this.urbanPlan = urbanPlan;
this.parcel = parcel;
this.landCases = landCases;
this.ucaseOrderno = ucaseOrderno;
this.ucaseIssuedate = ucaseIssuedate;
this.ucaseDocno = ucaseDocno;
this.ucaseDesc = ucaseDesc;
this.ucasedatesys = ucasedatesys;
this.ucaseIssuedatehj = ucaseIssuedatehj;
this.ucaseNote = ucaseNote;
}
public UrbanPlan getUrbanPlan() {
return this.urbanPlan;
}
public void setUrbanPlan(UrbanPlan urbanPlan) {
this.urbanPlan = urbanPlan;
}
public Parcel getParcel() {
return this.parcel;
}
public void setParcel(Parcel parcel) {
this.parcel = parcel;
}
public LandCases getLandCases() {
return this.landCases;
}
public void setLandCases(LandCases landCases) {
this.landCases = landCases;
}
public String getUcaseOrderno() {
return this.ucaseOrderno;
}
public void setUcaseOrderno(String ucaseOrderno) {
this.ucaseOrderno = ucaseOrderno;
}
public Date getUcaseIssuedate() {
return this.ucaseIssuedate;
}
public void setUcaseIssuedate(Date ucaseIssuedate) {
this.ucaseIssuedate = ucaseIssuedate;
}
public String getUcaseDocno() {
return this.ucaseDocno;
}
public void setUcaseDocno(String ucaseDocno) {
this.ucaseDocno = ucaseDocno;
}
public String getUcaseDesc() {
return this.ucaseDesc;
}
public void setUcaseDesc(String ucaseDesc) {
this.ucaseDesc = ucaseDesc;
}
public Date getUcasedatesys() {
return this.ucasedatesys;
}
public void setUcasedatesys(Date ucasedatesys) {
this.ucasedatesys = ucasedatesys;
}
public String getUcaseIssuedatehj() {
return this.ucaseIssuedatehj;
}
public void setUcaseIssuedatehj(String ucaseIssuedatehj) {
this.ucaseIssuedatehj = ucaseIssuedatehj;
}
public String getUcaseNote() {
return ucaseNote;
}
public void setUcaseNote(String ucaseNote) {
this.ucaseNote = ucaseNote;
}
public UseCasesId getId() {
return id;
}
public void setId(UseCasesId id) {
this.id = id;
}
}
用例ID.java：
package com.dq.hibernate.model;
// Generated 7 ao�t 2013 15:46:08 by Hibernate Tools 3.4.0.CR1
/**
* UseCasesId generated by hbm2java
*/
public class UseCasesId implements java.io.Serializable {
private String upaId;
private String lndcasesId;
private String parcelNo;
private String parcelBlk;
private String parcelGrp;
public UseCasesId() {
}
public UseCasesId(String upaId, String lndcasesId, String parcelNo,
String parcelBlk, String parcelGrp) {
this.upaId = upaId;
this.lndcasesId = lndcasesId;
this.parcelNo = parcelNo;
this.parcelBlk = parcelBlk;
this.parcelGrp = parcelGrp;
}
public String getupaId() {
return this.upaId;
}
public void setupaId(String upaId) {
this.upaId = upaId;
}
public String getLndcasesId() {
return this.lndcasesId;
}
public void setLndcasesId(String lndcasesId) {
this.lndcasesId = lndcasesId;
}
public String getParcelNo() {
return this.parcelNo;
}
public void setParcelNo(String parcelNo) {
this.parcelNo = parcelNo;
}
public String getParcelBlk() {
return this.parcelBlk;
}
public void setParcelBlk(String parcelBlk) {
this.parcelBlk = parcelBlk;
}
public String getParcelGrp() {
return this.parcelGrp;
}
public void setParcelGrp(String parcelGrp) {
this.parcelGrp = parcelGrp;
}
public boolean equals(Object other) {
if ((this == other))
return true;
if ((other == null))
return false;
if (!(other instanceof UseCasesId))
return false;
UseCasesId castOther = (UseCasesId) other;
return ((this.getupaId() == castOther.getupaId()) || (this
.getupaId() != null && castOther.getupaId() != null && this
.getupaId().equals(castOther.getupaId())))
&& ((this.getLndcasesId() == castOther.getLndcasesId()) || (this
.getLndcasesId() != null
&& castOther.getLndcasesId() != null && this
.getLndcasesId().equals(castOther.getLndcasesId())))
&& ((this.getParcelNo() == castOther.getParcelNo()) || (this
.getParcelNo() != null
&& castOther.getParcelNo() != null && this
.getParcelNo().equals(castOther.getParcelNo())))
&& ((this.getParcelBlk() == castOther.getParcelBlk()) || (this
.getParcelBlk() != null
&& castOther.getParcelBlk() != null && this
.getParcelBlk().equals(castOther.getParcelBlk())))
&& ((this.getParcelGrp() == castOther.getParcelGrp()) || (this
.getParcelGrp() != null
&& castOther.getParcelGrp() != null && this
.getParcelGrp().equals(castOther.getParcelGrp())));
}
public int hashCode() {
int result = 17;
result = 37
* result
+ (getupaId() == null ? 0 : this.getupaId()
.hashCode());
result = 37
* result
+ (getLndcasesId() == null ? 0 : this.getLndcasesId()
.hashCode());
result = 37 * result
+ (getParcelNo() == null ? 0 : this.getParcelNo().hashCode());
result = 37 * result
+ (getParcelBlk() == null ? 0 : this.getParcelBlk().hashCode());
result = 37 * result
+ (getParcelGrp() == null ? 0 : this.getParcelGrp().hashCode());
return result;
}
}
这是我的功能：
public String saveUseCases(UseCases useCases, String action,String no,String blk,String grp) {
String result = "";
String[] list=useCases.getParcel().getParcelNo().split("-");
UseCases useCase=new UseCases(new UseCasesId(useCases.getUrbanPlan().getUpaId(),useCases.getLandCases().getLndcasesId(),no,blk,grp));
useCase.setUcaseIssuedate(useCases.getUcaseIssuedate());
useCase.setUcaseDocno(useCases.getUcaseDocno());
useCase.setUcaseNote(useCases.getUcaseNote());
useCase.setUcasedatesys(new Date());
try {
if (action.equals("SAVE")) {
useCasesDaoImpl.save(useCase);
result = useCases.getId().getParcelNo();
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
return result;
}
正如我已经说过的，我可以在表中插入一条新记录，但也有这个错误：
15:53:59,088 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) java.lang.ClassCastException: com.dq.hibernate.model.UseCasesId cannot be cast to java.lang.String
15:53:59,091 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at com.dq.dao.GenericDao.save(Unknown Source)
15:53:59,094 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at com.dq.urbanplanning.web.manager.impl.UseCasesManagerImpl.saveUseCases(UseCasesManagerImpl.java:77)
15:53:59,096 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at com.dq.urbanplanning.web.dwr.UseCasesService.saveUseCases(UseCasesService.java:14)
15:53:59,098 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
15:53:59,104 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
15:53:59,106 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
15:53:59,113 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at java.lang.reflect.Method.invoke(Method.java:597)
15:53:59,115 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.impl.CreatorModule$1.doFilter(CreatorModule.java:229)
15:53:59,117 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.impl.CreatorModule.executeMethod(CreatorModule.java:241)
15:53:59,119 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:379)
15:53:59,121 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:332)
15:53:59,123 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.dwrp.BaseCallHandler.handle(BaseCallHandler.java:104)
15:53:59,129 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:120)
15:53:59,131 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:141)
15:53:59,133 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
15:53:59,144 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
15:53:59,147 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
15:53:59,149 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
15:53:59,151 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
15:53:59,153 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
15:53:59,155 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
15:53:59,158 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,161 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
15:53:59,164 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,168 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
15:53:59,170 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,174 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
15:53:59,177 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,179 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:150)
15:53:59,182 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,185 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
15:53:59,188 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,191 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:91)
15:53:59,193 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,196 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
15:53:59,199 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,207 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
15:53:59,210 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,213 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
15:53:59,216 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
15:53:59,218 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,221 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
15:53:59,223 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
15:53:59,226 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
15:53:59,228 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
15:53:59,231 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
15:53:59,233 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
15:53:59,235 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
15:53:59,236 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
15:53:59,238 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
15:53:59,240 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
15:53:59,243 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
15:53:59,245 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
15:53:59,247 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
15:53:59,249 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
15:53:59,252 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
15:53:59,256 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
15:53:59,258 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
15:53:59,260 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
15:53:59,262 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) at java.lang.Thread.run(Thread.java:662)
错误与这一行有关：useCasesDaoImpl.save(useCase); //第 77 行