很简单的问题，为什么我的hibernate返回空值？

[zhuleii]

我的dao中是这样写的：
public List findByProperty(String propertyName, Object value) {
log.debug("finding ReptAgilityConfig instance with property: "
+ propertyName + ", value: " + value);
try {
String queryString = "from ReptAgilityConfig as model";
return getHibernateTemplate().find(queryString);
} catch (RuntimeException re) {
log.error("find by property name failed", re);
throw re;
}
}
返回的list是空的。
还有啊，我用myeclipse自动把数据库中的表映射成hibernate所需要的类，生成了2个，一个ReptAgilityConfig，里面只有一个id；另一个是ReptAgilityConfigId,里面对应了数据库表中的一些字段。在上面的dao中，propertyName填成表中的任意字段都会出错(因为它只有一个成员id)，那么我该怎么用它呢？
高手来帮我啊，我只有这么多分了。

[jackym]

帮你顶顶吧 我也不清楚............

[yangxccom]

把from ReptAgilityConfig as model写成from ReptAgilityConfig,试试看

[yangxccom]

最好是把表、MAP文件、类放上来看看

[hunter7319]

public List findByProperty(String propertyName, Object value)
你不用这个方法 自己写个方法啊
public List findByYzdh() {
log.debug("finding GsTjjlTzjlcxView instance with property " );
try {
String queryString = "from ReptAgilityConfig ;
return getHibernateTemplate().find(queryString);
} catch (RuntimeException re) {
log.error("find by property name failed", re);
throw re;
}
}
在ReptAgilityConfig 前面写上它的路径

[zhuleii]

我把from ReptAgilityConfig as model写成from ReptAgilityConfig还是一样的问题。

我的表：
create table REPT_AGILITY_CONFIG
(
PRODUCT_NAME VARCHAR2(255),
EXECUTE_SQL VARCHAR2(4000),
LOCAL_NET_ID NUMBER,
COLUMN_NAME VARCHAR2(1024),
STS VARCHAR2(3),
WORK_AREA_ID NUMBER
)
放在服务器上的。

ReptAgilityConfig.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">
<!--
Mapping file autogenerated by MyEclipse - Hibernate Tools
-->
<hibernate-mapping>
<class name="com.yourcompany.ReptAgilityConfig" table="REPT_AGILITY_CONFIG" schema="CONV97">
<composite-id name="id" class="com.yourcompany.ReptAgilityConfigId">
<key-property name="productName" type="java.lang.String">
<column name="PRODUCT_NAME" />
</key-property>
<key-property name="executeSql" type="java.lang.String">
<column name="EXECUTE_SQL" length="4000" />
</key-property>
<key-property name="localNetId" type="java.lang.Long">
<column name="LOCAL_NET_ID" precision="22" scale="0" />
</key-property>
<key-property name="workAreaId" type="java.lang.Long">
<column name="WORK_AREA_ID" precision="22" scale="0" />
</key-property>
<key-property name="columnName" type="java.lang.String">
<column name="COLUMN_NAME" length="1024" />
</key-property>
<key-property name="sts" type="java.lang.String">
<column name="STS" length="3" />
</key-property>
</composite-id>
</class>
</hibernate-mapping>

ReptAgilityConfig.class:
package com.yourcompany;



/**
* ReptAgilityConfig generated by MyEclipse - Hibernate Tools
*/

public class ReptAgilityConfig implements java.io.Serializable {


// Fields

private ReptAgilityConfigId id;


// Constructors

/** default constructor */
public ReptAgilityConfig() {
}


/** full constructor */
public ReptAgilityConfig(ReptAgilityConfigId id) {
this.id = id;
}


// Property accessors

public ReptAgilityConfigId getId() {
return this.id;
}

public void setId(ReptAgilityConfigId id) {
this.id = id;
}

}

ReptAgilityConfigId.class:
package com.yourcompany;



/**
* ReptAgilityConfigId generated by MyEclipse - Hibernate Tools
*/

public class ReptAgilityConfigId implements java.io.Serializable {


// Fields

private String productName;
private String executeSql;
private Long localNetId;
private Long workAreaId;
private String columnName;
private String sts;


// Constructors

/** default constructor */
public ReptAgilityConfigId() {
}


/** full constructor */
public ReptAgilityConfigId(String productName, String executeSql, Long localNetId, Long workAreaId, String columnName, String sts) {
this.productName = productName;
this.executeSql = executeSql;
this.localNetId = localNetId;
this.workAreaId = workAreaId;
this.columnName = columnName;
this.sts = sts;
}


// Property accessors

public String getProductName() {
return this.productName;
}

public void setProductName(String productName) {
this.productName = productName;
}

public String getExecuteSql() {
return this.executeSql;
}

public void setExecuteSql(String executeSql) {
this.executeSql = executeSql;
}

public Long getLocalNetId() {
return this.localNetId;
}

public void setLocalNetId(Long localNetId) {
this.localNetId = localNetId;
}

public Long getWorkAreaId() {
return this.workAreaId;
}

public void setWorkAreaId(Long workAreaId) {
this.workAreaId = workAreaId;
}

public String getColumnName() {
return this.columnName;
}

public void setColumnName(String columnName) {
this.columnName = columnName;
}

public String getSts() {
return this.sts;
}

public void setSts(String sts) {
this.sts = sts;
}




public boolean equals(Object other) {
if ( (this == other ) ) return true;
if ( (other == null ) ) return false;
if ( !(other instanceof ReptAgilityConfigId) ) return false;
ReptAgilityConfigId castOther = ( ReptAgilityConfigId ) other;

return ( (this.getProductName()==castOther.getProductName()) || ( this.getProductName()!=null && castOther.getProductName()!=null && this.getProductName().equals(castOther.getProductName()) ) )
&& ( (this.getExecuteSql()==castOther.getExecuteSql()) || ( this.getExecuteSql()!=null && castOther.getExecuteSql()!=null && this.getExecuteSql().equals(castOther.getExecuteSql()) ) )
&& ( (this.getLocalNetId()==castOther.getLocalNetId()) || ( this.getLocalNetId()!=null && castOther.getLocalNetId()!=null && this.getLocalNetId().equals(castOther.getLocalNetId()) ) )
&& ( (this.getWorkAreaId()==castOther.getWorkAreaId()) || ( this.getWorkAreaId()!=null && castOther.getWorkAreaId()!=null && this.getWorkAreaId().equals(castOther.getWorkAreaId()) ) )
&& ( (this.getColumnName()==castOther.getColumnName()) || ( this.getColumnName()!=null && castOther.getColumnName()!=null && this.getColumnName().equals(castOther.getColumnName()) ) )
&& ( (this.getSts()==castOther.getSts()) || ( this.getSts()!=null && castOther.getSts()!=null && this.getSts().equals(castOther.getSts()) ) );
}

public int hashCode() {
int result = 17;

result = 37 * result + ( getProductName() == null ? 0 : this.getProductName().hashCode() );
result = 37 * result + ( getExecuteSql() == null ? 0 : this.getExecuteSql().hashCode() );
result = 37 * result + ( getLocalNetId() == null ? 0 : this.getLocalNetId().hashCode() );
result = 37 * result + ( getWorkAreaId() == null ? 0 : this.getWorkAreaId().hashCode() );
result = 37 * result + ( getColumnName() == null ? 0 : this.getColumnName().hashCode() );
result = 37 * result + ( getSts() == null ? 0 : this.getSts().hashCode() );
return result;
}





}

执行dao返回的list.toString()为[null, null, null, null, null, null]，我都摸不着头脑了。
我这里的分不多，但我非常希望论坛里有经验的人，哪怕是只有一点经验的人热情的帮助我。谢谢了。

[zhuleii]

自己解决了，复合主键的问题，结帖给分。

[八也子]

什么意思？？？怎样解决的啊？？我的findproperty（）怎么都是空啊。