Question

我是初学者练习hibernate ORM，我需要帮助解决以下异常：谢谢

Entitiy：

package com.ds.supercar.model.usermodel;

公共类地址{

private String emailid;
private String mobile;
private String street;
private String city;
private String state;
private String country;
private String pin;

//GETTERS AND SETTERS
public Address() {
    // TODO Auto-generated constructor stub
}


public Address(String emailid, String mobile, String street, String city, String state, String country,
        String pin) {
    super();
    this.emailid = emailid;
    this.mobile = mobile;
    this.street = street;
    this.city = city;
    this.state = state;
    this.country = country;
    this.pin = pin;
}






public String getEmailid() {
    return emailid;
}
public void setEmailid(String emailid) {
    this.emailid = emailid;
}
public String getMobile() {
    return mobile;
}
public void setMobile(String mobile) {
    this.mobile = mobile;
}
public String getStreet() {
    return street;
}
public void setStreet(String street) {
    this.street = street;
}
public String getCity() {
    return city;
}
public void setCity(String city) {
    this.city = city;
}
public String getState() {
    return state;
}
public void setState(String state) {
    this.state = state;
}
public String getCountry() {
    return country;
}
public void setCountry(String country) {
    this.country = country;
}
public String getPin() {
    return pin;
}
public void setPin(String pin) {
    this.pin = pin;
}

}

hbm.xml文件

<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
    <class name="com.ds.supercar.model.usermodel.Address" table="supercaraddress" schema="supercar">
        <id column="email"/>
        <property name="mobile"/>
        <property name="street"/>
        <property name="city"/>
        <property name="state"/>
        <property name="country"/>
        <property name="pin"/>
    </class>

</hibernate-mapping>

hibernate cfg xml：

<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="hibernate.connection.url">jdbc:oracle:thin:@127.0.0.1:1521:SYSTEM</property>
        <property name="hibernate.connection.username">system</property>
        <property name="hibernate.connection.password">admin</property>
        <property name="hbm2ddl_auto">create</property>

org.hibernate.dialect.Oracle11gDialect 真正

例外：

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).

log4j：WARN请正确初始化log4j系统。初始SessionFactory创建失败：org.hibernate.MappingException：读取资源时出错：com / ds / supercar / resources / mappings / usermodel / address.hbm.xml 线程＆＃34; main＆＃34;中的例外情况java.lang.ExceptionInInitializerError 在Test.main（Test.java:19）引起：org.hibernate.MappingException：读取资源时出错：com / ds / supercar / resources / mappings / usermodel / address.hbm.xml 在org.hibernate.cfg.Configuration.addResource（Configuration.java:449）在org.hibernate.cfg.Configuration.parseMappingElement（Configuration.java:1313）在org.hibernate.cfg.Configuration.parseSessionFactory（Configuration.java:1285）在org.hibernate.cfg.Configuration.doConfigure（Configuration.java:1267）在org.hibernate.cfg.Configuration.doConfigure（Configuration.java:1234）在org.hibernate.cfg.Configuration.configure（Configuration.java:1162）在org.hibernate.cfg.Configuration.configure（Configuration.java:1148）在Test.main（Test.java:12）引起：org.hibernate.MappingException：必须指定标识符类型：com.ds.supercar.model.usermodel.Address 在org.hibernate.cfg.HbmBinder.bindSimpleId（HbmBinder.java:354）在org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues（HbmBinder.java:293）在org.hibernate.cfg.HbmBinder.bindRootClass（HbmBinder.java:235）在org.hibernate.cfg.HbmBinder.bindRoot（HbmBinder.java:151）在org.hibernate.cfg.Configuration.add（Configuration.java:360）在org.hibernate.cfg.Configuration.addInputStream（Configuration.java:397）在org.hibernate.cfg.Configuration.addResource（Configuration.java:446） ......还有7个

请帮我解决这个问题：

Answer 1

我认为您在映射文件中缺少ID中的name。

从映射XML：<id name="emailId" column="email"/>

hibernate配置错误xml：失败：org.hibernate.MappingException：读取资源时出错：com /

1 个答案: