これが既存の質問と重複している場合は申し訳ありません。以下は私の従業員の豆です。
public class Employee {
private int id;
private String firstName;
private String lastName;
private int salary;
public Employee() {}
public Employee(String fname, String lname, int salary) {
this.firstName = fname;
this.lastName = lname;
this.salary = salary;
}
public int getId() {
return id;
}
public void setId( int id ) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName( String first_name ) {
this.firstName = first_name;
}
public String getLastName() {
return lastName;
}
public void setLastName( String last_name ) {
this.lastName = last_name;
}
public int getSalary() {
return salary;
}
public void setSalary( int salary ) {
this.salary = salary;
}
}
postgres テーブルの従業員にマップしたい
CREATE TABLE employee
(
id integer NOT NULL DEFAULT nextval('emp_id_seq'::regclass),
first_name character varying(20),
last_name character varying(20),
salary integer,
CONSTRAINT employee_pkey PRIMARY KEY (id)
)
これが私のメインのクラスコードスニペットです
try{
factory = new Configuration().configure().buildSessionFactory();
}catch (Throwable ex) {
System.err.println("Failed to create sessionFactory object." + ex);
throw new ExceptionInInitializerError(ex);
}
実行中に次のエラーが表示されます
Failed to create sessionFactory object.org.hibernate.InvalidMappingException: Could not parse mapping document from resource Employee.hbm.xml
Exception in thread "main" java.lang.ExceptionInInitializerError
at ManageEmployee.main(ManageEmployee.java:26)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource Employee.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:575)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1593)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1561)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1540)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1514)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1434)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1420)
at ManageEmployee.main(ManageEmployee.java:23)
ここに私のマッピングファイルがあります
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package = "com.demo.hibernate.beans">
<class name="Employee" table="employee">
<meta attribute="class-description">
This class contains the employee detail.
</meta>
<id name="id" type="int" column="id">
<generator class="native"/>
</id>
<property name="firstName" column="first_name" type="string"/>
<property name="lastName" column="last_name" type="string"/>
<property name="salary" column="salary" type="int"/>
</class>
</hibernate-mapping>
これがEmployee.hbm.xmlと関係があることがわかっている理由として考えられるのは何ですか。助けてください
前もって感謝します !!!
役立つ場合は、CFGファイルを次に示します
<?xml version="1.0" encoding="utf-8"?>
<!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.dialect">
org.hibernate.dialect.PostgreSQLDialect
</property>
<property name="hibernate.connection.driver_class">
org.postgresql.Driver
</property>
<!-- Assume test is the database name -->
<property name="hibernate.connection.url">
jdbc:postgresql://localhost:5432/postgres
</property>
<property name="hibernate.connection.username">
postgres
</property>
<property name="hibernate.connection.password">
postgres
</property>
<!-- List of XML mapping files -->
<mapping resource="Employee.hbm.xml"/>
</session-factory>
</hibernate-configuration>