Hibernate新手的简单入门 一直报错 在线等
先上代码
- Java code
package com.test.hibernate;import java.util.Date;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;public class Start { public static void main(String[] args) { Configuration cfg = new Configuration().configure(); SessionFactory factory = cfg.buildSessionFactory(); Session session =null ; try{ session = factory.openSession(); session.beginTransaction(); Test test = new Test(); test.setName("????张三"); test.setPassword("123456"); test.setStsdate(new Date()); test.setEnddate(new Date()); test.setId(1); session.save(test); session.getTransaction().commit(); }catch(Exception e){ e.printStackTrace(); System.out.println("?抛出异常"); session.getTransaction().rollback(); }finally{ if(session != null) { if(session.isOpen()) { session.close(); } } } }}- Java code
package com.test.hibernate;import java.util.Date;public class Test { private String name; private String password; private Date stsdate; private Date enddate; private int id; public int getId() { return id; } public void setId(int id) { this.id = id; } public Date getEnddate() { return enddate; } public void setEnddate(Date enddate) { this.enddate = enddate; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public Date getStsdate() { return stsdate; } public void setStsdate(Date stsdate) { this.stsdate = stsdate; } }配置文件
- XML code
<?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 > <class name="com.test.hibernate.Test"> <id name="id" column="id"> <generator class="uuid"/> </id> <property name="id" column="int"/> <property name="name" column="name"/> <property name="password" column="password"/> <property name="stsdate" column="stsdate" /> <property name="enddate" column="enddate"/> </class> </hibernate-mapping>
- XML code
<?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"><!-- Generated by MyEclipse Hibernate Tools. --><hibernate-configuration> <session-factory> <property name="connection.username">ajax</property> <property name="connection.url">jdbc:oracle:thin:@localhost:1521:TEST</property> <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property> <property name="myeclipse.connection.profile">Oracle</property> <property name="connection.password">123456</property> <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property> <mapping resource="com/test/hibernate/Test.hbm.xml"/> </session-factory></hibernate-configuration>
下面是错误信息
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
org.hibernate.PropertyAccessException: IllegalArgumentException occurred while calling setter of com.test.hibernate.Test.id
at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:104)
at org.hibernate.tuple.AbstractEntityTuplizer.setIdentifier(AbstractEntityTuplizer.java:204)
at org.hibernate.persister.entity.AbstractEntityPersister.setIdentifier(AbstractEntityPersister.java:3262)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:157)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:114)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:530)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:518)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:514)
at com.test.hibernate.Start.main(Start.java:31)
Caused by: java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:42)
... 13 more
?抛出异常
又是代码又是错误信息的有点长 希望各位别嫌麻烦 还望多多赐教 因为是新手所以好多概念理解不扎实不透彻 希望各位多讲解一些说的简单一些
大量分奉上
[解决办法]
你的hibernate文件2个id必然冲突，把下面的那个id修改成其他的，就应该ok了
[解决办法]
在配置文件中，你配置了2个ID，你看看是不是这个原因
[解决办法]
楼上正解
[解决办法]
<id name="id" column="id">
<generator class="uuid"/></id>
<property name="id" column="int"/>
错了。
[解决办法]
private int id;改成private String id;
因为uuid是一个128-bit的字符串。
[解决办法]
把改后的代码贴一下呢。
[解决办法]
[解决办法]
你的测试代码里面test.setId(1);估计和你后面的配置不一致，错误的原因是
argument type mismatch
类型不匹配
[解决办法]
uuid是自动生成主键的吧
Test test = new Test();
test.setName("????张三");
test.setPassword("123456");
test.setStsdate(new Date());
test.setEnddate(new Date());
test.setId(1);
把test.setId(1)这句删掉
[解决办法]
不知道LZ是怎么弄的，我按照楼主的代码，自己也做了一份，不过我的那个是ＭｙＳＱＬ的数据库，其余都是按照楼主的代码去写的，就像楼上各位所说的，那个Ｉｄ生成确实遇到问题，我直接把那个配置文件里面的改成了 <id name="id"><generator class="native"></generator></id>。然后在hibernate.cfg.xml
中添加了一个property，<property name="hbm2ddl.auto">update</property>运行结果是正确的
Hibernate:
insert
into
Test
(name, password, stsdate, enddate)
values
(?, ?, ?, ?)
[解决办法]
org.hibernate.PropertyAccessException: IllegalArgumentException occurred while calling setter of com.test.hibernate.Test.id
com.test.hibernate.Test.setId()//参数的类型是不是不对啊 ？
[解决办法]
楼主不要乱改啊，你那个id就是int类型的，不要删掉。在test.hrm.xml中那个id类型改成我那样的 试试，native的
[解决办法]
你把那个表删了，重新运行一遍试试，再不行，偶也没有办法了！