今天在用Myeclipse 6.0 Jsf Hibernate 3.1生成Mapping文件时总是出现An internal error occurred during: "Generating Artifacts".
java.util.NoSuchElementException
An internal error occurred during: "Generating Artifacts".
java.util.NoSuchElementException
错误,重装了系统,重装了myeclipse依然!
数据库试了SQL2005 SQL2000 SP4 MySQL 5.0.41 问题依然存在!
之前用MySQL 5.0.41时没有问题
log信息为:
!ENTRY org.eclipse.core.jobs 4 2 2007-12-28 23:11:38.812
!MESSAGE An internal error occurred during: "Generating Artifacts".
!STACK 0
java.util.NoSuchElementException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$ValueIterator.next(Unknown Source)
at com.genuitec.eclipse.hibernate.tool.MESingleClassExporter.doStart(MESingleClassExporter.java:59)
at com.genuitec.eclipse.hibernate.tool.hbm2x.VAbstractExporter.start(VAbstractExporter.java:97)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$3.execute(GenerateArtifactsJob.java:529)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:56)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:89)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:408)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
希望大家指点
java.util.NoSuchElementException
An internal error occurred during: "Generating Artifacts".
java.util.NoSuchElementException
错误,重装了系统,重装了myeclipse依然!
数据库试了SQL2005 SQL2000 SP4 MySQL 5.0.41 问题依然存在!
之前用MySQL 5.0.41时没有问题
log信息为:
!ENTRY org.eclipse.core.jobs 4 2 2007-12-28 23:11:38.812
!MESSAGE An internal error occurred during: "Generating Artifacts".
!STACK 0
java.util.NoSuchElementException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$ValueIterator.next(Unknown Source)
at com.genuitec.eclipse.hibernate.tool.MESingleClassExporter.doStart(MESingleClassExporter.java:59)
at com.genuitec.eclipse.hibernate.tool.hbm2x.VAbstractExporter.start(VAbstractExporter.java:97)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$3.execute(GenerateArtifactsJob.java:529)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:56)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:89)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:408)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
希望大家指点
代码:
BbsUser user = new BbsUser();
BbsUserDAO dao = new BbsUserDAO();
user.setUname(this.getUname());
user.setUpsw(this.getUpsw());
dao.save(user);
System.out.println("success"+this.getUname()+this.getUpsw());
其它文件为自动生成文件
能正常获得uname和upsw的值,执行后的信息为:
2007-12-29 09:53:46,421 WARN [net.sf.ehcache.config.Configurator] - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/D:/workspace/.metadata/.plugins/com.genuitec.eclipse.easie.tomcat.myeclipse/tomcat/webapps/mybbs/WEB-INF/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
save 这里是在DAO中打印的测试信息!我在getSession().save(userinstance);后加的一个打印方法
successadminadmin
getSession().save(transientInstance);
getSession().beginTransaction().commit();
log.debug("save successful");
我在用hibernate插入一条数据时,他提示我:java.lang.nullpointerexception这个错误
我的HibernateTest.java程序:
package org.redsaga.quickstart.Test;import java.io.File;
import java.util.List;import org.redsaga.quickstart.Tuser;import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Session;
import net.sf.hibernate.SessionFactory;
import net.sf.hibernate.Transaction;
import net.sf.hibernate.cfg.Configuration;import junit.framework.Assert;
import junit.framework.TestCase;public class HibernateTest extends TestCase {
Session session=null;
static Tuser user1=null;
protected void setup(){
try{
//采用hibernate.cfg.xml配置文件的初始化代码
Configuration config =new Configuration().configure(new File("hibernate.cfg.xml"));
SessionFactory sessionFactory=config.buildSessionFactory();
session=sessionFactory.openSession();
}
catch(HibernateException e){
e.printStackTrace();
}
} protected void tearDown(){
try{
session.close();
}catch(HibernateException e){
e.printStackTrace();
}
}
// 对持久化insert测试方法
public void testInset(){
Transaction tran=null;
try{
tran=session.beginTransaction();
user1=new Tuser();
user1.setName("Emma");
session.save(user1);
session.flush();
tran.commit();
Assert.assertEquals(user1.getId().intValue()>0,true);
}catch(HibernateException e){
e.printStackTrace();
Assert.fail(e.getMessage());
if(tran!=null){
try{
tran.rollback();
}catch(HibernateException e1){
e1.printStackTrace();
}
}
}
}
//对象读取select 测试
/*public void testSelect(){
String hql="from Tuser where name='Emma'";
try{
List userList=session.createQuery(hql).list();
Tuser user=(Tuser)userList.get(0);
Assert.assertEquals(user.getName(),"Emma");
}catch(HibernateException e){
e.printStackTrace();
Assert.fail(e.getMessage());
}
}*/
}Tuser.java程序:
package org.redsaga.quickstart;import java.io.Serializable;
import org.apache.commons.lang.builder.ToStringBuilder;
/**
* @hibernate.class
* table="T_USER"
*
*/
public class Tuser implements Serializable { /** identifier field */
private Integer id=null; /** persistent field */
private String name=null; /** full constructor */
public Tuser(String name) {
this.name = name;
} /** default constructor */
public Tuser() {
} /**
* @hibernate.id
* generator-class="sequence"
* type="java.lang.Integer"
* column="ID"
* @hibernate.generator-param
* name="sequence"
* value="user_sequence"
*
*/
public Integer getId() {
return this.id;
} public void setId(Integer id) {
this.id = id;
} /**
* @hibernate.property
* column="NAME"
* length="10"
* not-null="true"
*
*/
public String getName() {
return this.name;
} public void setName(String name) {
this.name = name;
} public String toString() {
return new ToStringBuilder(this)
.append("id", getId())
.toString();
}}
先谢过了