1
我有休眠的问题......我已经尝试了所有的东西来解决这个过去的两天，我没有更多的想法...org.hibernate.exception.SQLGrammarException：Hibernate不会加入列
我有一个Mysql 5.0数据库并从实体中创建类。他们的 二：
@Entity
@Table(name="products")
@NamedQuery(name="Product.findAll", query="SELECT p FROM Product p")
public class Product implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
private Long idProduct;
@OneToOne()
// @JoinTable(name="Tblmodeli")
// @JoinColumn(name="idModel") These two lines are important
@NotFound(action = NotFoundAction.EXCEPTION)
private Model idmodel;
public Long getidProduct() {
return this.idProduct;
}
public void setidProduct(Long idProduct) {
this.idProduct= idProduct;
}
public Model getIdmodel() {
return this.idmodel;
}
public void setIdmodel(Model idmodel) {
this.idmodel = idmodel;
}
}
第二张表：
@Entity
@Table(name="model")
@NamedQuery(name="model.findAll", query="SELECT t FROM model t")
public class Model implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
@Column(name="idModel")
private Long idModel;
private String name;
public Long getIdModel() {
return this.idModel;
}
public void setIdModel(Long idModel) {
this.idModel = idModel;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name= name;
}
}
persistance.xml
<?xml version="1.0"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
<persistence-unit name="SomeName" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:/mydb/</jta-data-source>
<class>model.Products</class>
<class>model.Model</class>
<property name="hibernate.format_sql" value="true"/>
<property name="use_sql_comments" value="true"/>
<property name="hibernate.show_sql" value="true"/>
<property name="javax.persistence.jdbc.driver" value="com.mysql"/>
<property name="hibernate.max_fetch_depth" value="4"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect"/>
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://MyLink"/>
<property name="javax.persistence.jdbc.user" value="username"/>
<property name="javax.persistence.jdbc.url.password" value="password"/>
当我做这个命令
Product p= em.find(Product.class, 1L);
String s=p.getIdmodel().getName();
我成为这个控制台：
select
product0_.IDNormativa as idProduct1_806_,
product0_.idmodel_idModel as idmodel59_806_
from
products product0_
where
product0_.productID = '1'
12:19:38,293 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-2) SQL Error: 1054, SQLState: 42S22
12:19:38,293 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-2) Unknown column 'product0_.idmodel_idModel' in 'field list'
12:19:38,294 INFO [stdout] (http-localhost-127.0.0.1-8080-2) javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: Unknown column 'product0_.idmodel_idModel' in 'field list'
当我去掉这两条线// @JoinTable（名称= “Tblmodeli”）// @JoinColumn（名称= “idModel”）我成为这样：
select
product0_.IDNormativa as idProduct1_806_,
product0_.idmodel_idModel as idmodel59_806_
from
products product0_
left outer join
Model product0_1_
on product0_.idProduct=product0_1_.idProduct
//In this line i need on product0_.idmodel=product0_1_.idModel
where
product0_.idProduct= '1'
12:27:35,546 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-1) SQL Error: 1054, SQLState: 42S22
12:27:35,546 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-1) Unknown column 'product0_1_.idProduct' in 'on clause'
12:27:35,547 INFO [stdout] (http-localhost-127.0.0.1-8080-1) javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: Unknown column 'product0_1_.idProduct' in 'on clause'
我尝试了这些方言：
<!--<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/> -->
<!--<property name="hibernate.dialect" value="org.hibernate.dialect.SQLServer2008Dialect"/> -->
<!--<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLInnoDBDialect"/> -->
我已经使用mysql-connector-5.1.17.jar 该项目被部署在JBoss AS 7.1.1 我在同一个项目中，他们都取得了一定的OneToOne和一对多，不同的是日工作是很少mnore ......在JBoss文件夹中我有连接器，并在standalone.xml数据库和连接器
<datasources>
<datasource jta="true" jndi-name="java:/mydb/" pool-name="my_pool" enabled="true" use-java-context="true" use-ccm="true">
<connection-url>jdbc:mysql://MyURI</connection-url>
<driver>mysql</driver>
<security>
<user-name>username</user-name>
<password>password</password>
</security>
<statement>
<prepared-statement-cache-size>100</prepared-statement-cache-size>
<share-prepared-statements>true</share-prepared-statements>
</statement>
</datasource>
<drivers>
<driver name="mysql" module="com.mysql"/>
<driver name="h2" module="com.h2database.h2">
<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
出于某种原因，休眠不加入的产品和型号的表... 有人能帮我？ Thaks ...
我编辑了那个....是写入失败... – xXxJAVAxXx 2014-10-01 11:09:42