请教关于hibernate 3.0 的初始化报错java.lang.ClassCastException:

Question

我的配置是
eclipse3.1+Myeclipse 4.1+sqlserver2000

Answer 1

你的类型映射有错误你的POJO和你的XX.hbm.xml发出来看看

Answer 2

<?xml version="1.0"?>
<!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 - Hibernate Tools
-->
<hibernate-mapping>
    <class name="tmh.database.Dvbm" table="DVBM" schema="dbo" catalog="tmh">
        <id name="dvid" type="long">
            <column name="DVID" />
            <generator class="identity" />
        </id>
        <many-to-one name="dwshx" class="tmh.database.Dwshx" fetch="select">
            <column name="SHXID" />
        </many-to-one>
        <property name="name" type="string">
            <column name="NAME" length="20" not-null="true" />
        </property>
        <property name="address" type="string">
            <column name="ADDRESS" length="40" />
        </property>
        <property name="fr" type="string">
            <column name="FR" length="20" />
        </property>
        <property name="call" type="string">
            <column name="CALL" length="20" />
        </property>
        <property name="telphome" type="string">
            <column name="TELPHOME" length="30" />
        </property>
        <property name="fox" type="string">
            <column name="FOX" length="20" />
        </property>
        <set name="yhjbxxes" inverse="true">
            <key>
                <column name="DVID" />
            </key>
            <one-to-many class="tmh.database.Yhjbxx" />
        </set>
        <set name="pds" inverse="true">
            <key>
                <column name="DVID" />
            </key>
            <one-to-many class="tmh.database.Pd" />
        </set>
        <set name="ggjbxxes" inverse="true">
            <key>
                <column name="DVID" />
            </key>
            <one-to-many class="tmh.database.Ggjbxx" />
        </set>
    </class>
</hibernate-mapping>
===================================================================
package tmh.database;import java.util.HashSet;
import java.util.Set;
/**
 * AbstractDvbm generated by MyEclipse - Hibernate Tools
 */public abstract class AbstractDvbm  implements java.io.Serializable {
    // Fields         private long dvid;
     private Dwshx dwshx;
     private String name;
     private String address;
     private String fr;
     private String call;
     private String telphome;
     private String fox;
     private Set yhjbxxes = new HashSet(0);
     private Set pds = new HashSet(0);
     private Set ggjbxxes = new HashSet(0);
    // Constructors    /** default constructor */
    public AbstractDvbm() {
    } /** minimal constructor */
    public AbstractDvbm(String name) {
        this.name = name;
    }
    
    /** full constructor */
    public AbstractDvbm(Dwshx dwshx, String name, String address, String fr, String call, String telphome, String fox, Set yhjbxxes, Set pds, Set ggjbxxes) {
        this.dwshx = dwshx;
        this.name = name;
        this.address = address;
        this.fr = fr;
        this.call = call;
        this.telphome = telphome;
        this.fox = fox;
        this.yhjbxxes = yhjbxxes;
        this.pds = pds;
        this.ggjbxxes = ggjbxxes;
    }   
    // Property accessors    public long getDvid() {
        return this.dvid;
    }
    
    public void setDvid(long dvid) {
        this.dvid = dvid;
    }    public Dwshx getDwshx() {
        return this.dwshx;
    }
    
    public void setDwshx(Dwshx dwshx) {
        this.dwshx = dwshx;
    }    public String getName() {
        return this.name;
    }
    
    public void setName(String name) {
        this.name = name;
    }    public String getAddress() {
        return this.address;
    }
    
    public void setAddress(String address) {
        this.address = address;
    }    public String getFr() {
        return this.fr;
    }
    
    public void setFr(String fr) {
        this.fr = fr;
    }    public String getCall() {
        return this.call;
    }
    
    public void setCall(String call) {
        this.call = call;
    }    public String getTelphome() {
        return this.telphome;
    }
    
    public void setTelphome(String telphome) {
        this.telphome = telphome;
    }    public String getFox() {
        return this.fox;
    }
    
    public void setFox(String fox) {
        this.fox = fox;
    }    public Set getYhjbxxes() {
        return this.yhjbxxes;
    }
    
    public void setYhjbxxes(Set yhjbxxes) {
        this.yhjbxxes = yhjbxxes;
    }    public Set getPds() {
        return this.pds;
    }
    
    public void setPds(Set pds) {
        this.pds = pds;
    }    public Set getGgjbxxes() {
        return this.ggjbxxes;
    }
    
    public void setGgjbxxes(Set ggjbxxes) {
        this.ggjbxxes = ggjbxxes;
    }
   
}

Answer 3

<set name="yhjbxxes" inverse="true">
            <key>
                <column name="DVID" />
            </key>
            <one-to-many class="tmh.database.Yhjbxx" />
        </set>
        <set name="pds" inverse="true">
            <key>
                <column name="DVID" />
            </key>
            <one-to-many class="tmh.database.Pd" />
        </set>
        <set name="ggjbxxes" inverse="true">
            <key>
                <column name="DVID" />
            </key>
            <one-to-many class="tmh.database.Ggjbxx" />
        </set>你的这几个set 都对应到DVID一个字段你的逻辑是什么