java - Hibernate ORM 失败 :org. hibernate.MappingException:无法确定以下类型:

Question

我在 hibernate 配置 xml 中遇到问题。

实体:

package com.ds.supercar.model.places;

公开课地点{

private int locationid;
private String street;
private String city;
private String state;
private String pin;

public Location() {
    // TODO Auto-generated constructor stub
}

public Location(int locationid, String street, String city, String state, String pin) {
    super();
    this.locationid = locationid;
    this.street = street;
    this.city = city;
    this.state = state;
    this.pin = pin;
}

public int getLocationid() {
    return locationid;
}

public void setLocationid(int locationid) {
    this.locationid = locationid;
}

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 getPin() {
    return pin;
}

public void setPin(String pin) {
    this.pin = pin;
}

}

hbm xml 文件:

<hibernate-mapping>
<class name="com.ds.supercar.model.places.Location" table="supercarlocation" schema="supercar">
    <id name="locationid" column="locationid">
        <generator class="increment"/>
    </id>
    <property name="street"/>
    <property name="city"/>
    <property name="state"/>
    <property name="pin"/>
    </class>

异常(exception):

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:无法确定类型:com.ds.supercar.model.places.Location，列:[org.hibernate.mapping.Column(branchlocation)]线程“main”中的异常 java.lang.ExceptionInInitializerError 在 Test.main(Test.java:19)引起原因:org.hibernate.MappingException:无法确定类型:com.ds.supercar.model.places.Location，列:[org.hibernate.mapping.Column(branchlocation)] 在 org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:244) 在 org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:231) 在 org.hibernate.mapping.Property.isValid(Property.java:174) 在 org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:308) 在 org.hibernate.mapping.RootClass.validate(RootClass.java:186) 在 org.hibernate.cfg.Configuration.validate(Configuration.java:816) 在 org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1050) 在 Test.main(Test.java:13)

请帮我解决这个异常(exception):

Answer 1

您似乎忘记将映射资源放入 hibernate 配置文件中(在 sessionFactory 标记之间)因此，请使用它并映射您的 hbm。

<mapping resource="com.ds.supercar.model.places.Location.hbm.xml" />

希望这对您有帮助!