您好，在运行我的 java 类时出现以下错误：会话工厂的创建失败，出现异常 org.hibernate.MappingException：无法从资源中读取映射：Software.hbm.xml org.hibernate.MappingException：无法从资源中读取映射: org.hibernate.cfg.Configuration.addResource(Configuration.java:485) 的 Software.hbm.xml org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1465) 的 org.hibernate.cfg.Configuration.parseSessionFactory (Configuration.java:1433) 在 org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1414) 在 org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1390) 在 org.hibernate.cfg.Configuration。配置（配置.java：1310) at org.hibernate.cfg.Configuration.configure(Configuration.java:1296) at com.tcs.com.DbConnect.main(DbConnect.java:20) 原因：org.hibernate.MappingException：无法解析映射文档在 org.hibernate.cfg.Configuration.addResource(Configuration.java:482) 的 org.hibernate.cfg.Configuration.addInputStream(Configuration.java:431) 的输入流中... 7 更多原因：org.dom4j.DocumentException : www.hibernate.org 嵌套异常： www.hibernate.org at org.dom4j.io.SAXReader.read(SAXReader.java:484) at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:422) .. . com 的线程“main”java.lang.NullPointerException 中还有 8 个异常。tcs.com.DbConnect.add(DbConnect.java:46) 在 com.tcs.com.DbConnect.main(DbConnect.java:30) 在 sessionfactory 创建后的 main(DbConnect.java:30)123
MY hbm.xml file
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.tcs.beans">
<class name="Software" table="SOFTWARE">
<id name="id" type="int" column="id">
<generator class="native"></generator>
</id>
<property name="c" column="c" />
<property name="cpp" column="cpp" />
<property name="java" column="java" />
<property name="val" column="val" />
</class>
</hibernate-mapping>
Please help me with this as soon as possible
]
MY cfg.xml:
<?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.Oracle10gDialect
</property>
<property name="hibernate.connection.driver_class">
oracle.jdbc.OracleDriver
</property>
<!-- Assume test is the database name -->
<property name="hibernate.connection.url">
jdbc:oracle:thin:@localhost:1521/xe
</property>
<property name="hibernate.connection.username">
******
</property>
<property name="hibernate.connection.password">
*******
</property>
<!-- List of XML mapping files -->
<mapping resource="com/sss/beans/Software.hbm.xml"/>
</session-factory>
</hibernate-configuration>
My hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.tcs.beans">
<class name="Software" table="SOFTWARE">
<id name="id" type="int" column="id">
<generator class="native"></generator>
</id>
<property name="c" column="c" type="String"/>
<property name="cpp" column="cpp" type="String"/>
<property name="java" column="java" type="String"/>
<property name="val" column="val" type="int"/>
</class>
</hibernate-mapping>
软件.java
public class Software {
private int id;
private String c;
private String cpp;
private String java;
private int val;
public Software(){
}
public Software(String c,String cpp,String java,int val){
this.c=c;
this.cpp=cpp;
this.java=java;
this.val=val;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getC() {
return c;
}
public void setC(String c) {
this.c = c;
}
public String getCpp() {
return cpp;
}
public void setCpp(String cpp) {
this.cpp = cpp;
}
public String getJava() {
return java;
}
public void setJava(String java) {
this.java = java;
}
public int getVal() {
return val;
}
public void setVal(int val) {
this.val = val;
}
}
我的主要java文件...
public class DbConnect {
private static SessionFactory sessionFactory;
public static void main (String[] args) {
System.out.println("in main");
try{
System.out.println("in main before sessionfactory creation");
sessionFactory = new Configuration().configure().buildSessionFactory();
System.out.println("in main after sessionfactory creation");
}catch(Exception xe){
System.out.println("in main exc");
System.err.println("Creation of session Factory failed with the exception "+xe);
xe.printStackTrace();
}
System.out.println("in main after sessionfactory creation123");
DbConnect soft = new DbConnect();
Integer e1 = soft.add("c2","cpp2","java2",2);
Integer e2 = soft.add("c3","cpp3","java3",3);
Integer e3 = soft.add("c4","cpp4","java4",4);
soft.show();
soft.updateEmployee(e2, 5);
soft.show();
soft.deleteEmployee(e2);
}
public Integer add(String c,String cpp,String java ,int val){
Session session = sessionFactory.openSession();
Transaction tx = null;
Integer intID = null;
Software soft = new Software(c,cpp,java,val);
try{
tx = session.beginTransaction();
intID = (Integer) session.save(soft);
tx.commit();
}catch(Exception e){
if(tx!=null)tx.rollback();
e.printStackTrace();
}
finally{
session.close();
}
return intID;
}
public void show(){
Session session = sessionFactory.openSession();
Transaction tx = null;
try{
tx = session.beginTransaction();
List list = session.createQuery("FROM SOFTWARE").list();
Iterator it = list.iterator();
while(it.hasNext()){
Software sw = (Software) it.next();
System.out.println("c"+sw.getC());
System.out.println("cpp"+sw.getCpp());
System.out.println("java"+sw.getJava());
System.out.println("val"+sw.getVal());
}
tx.commit();
}catch(Exception xe){
if(tx!=null)tx.rollback();
xe.printStackTrace();
}finally{
session.close();
}
}
public void updateEmployee(Integer EmployeeID, int salary ){
Session session = sessionFactory.openSession();
Transaction tx = null;
try{
tx = session.beginTransaction();
Software sw = (Software) session.get(Software.class, EmployeeID);
sw.setVal(salary);
session.update(sw);
tx.commit();
}catch(Exception e){
if(tx!=null)tx.rollback();
e.printStackTrace();
}
}
public void deleteEmployee(Integer EmployeeID){
Session session = sessionFactory.openSession();
Transaction tx= null;
try{
tx = session.beginTransaction();
Software sw = (Software) session.get(Software.class , EmployeeID);
session.delete(sw);
tx.commit();
}catch(Exception e){
if(tx!=null)tx.rollback();
e.printStackTrace();
}
}
}