Java 休眠-无法从表中读取值
无法通过hibernate从表中读取数据。但相同的SQL在TOAD中工作。 SQL: 表def:Java 休眠-无法从表中读取值,java,sql,hibernate,jakarta-ee,Java,Sql,Hibernate,Jakarta Ee,无法通过hibernate从表中读取数据。但相同的SQL在TOAD中工作。 SQL: 表def: CREATE TABLE "PUBSH" ( KEY decimal(22) NOT NULL, PROD varchar2(54) NOT NULL, PRODKEY decimal(22), PROD_DESC varchar2(360), PARTEY decimal(22) NOT NULL, LIST_TYPE varchar2(90), PUBL
CREATE TABLE "PUBSH"
(
KEY decimal(22) NOT NULL,
PROD varchar2(54) NOT NULL,
PRODKEY decimal(22),
PROD_DESC varchar2(360),
PARTEY decimal(22) NOT NULL,
LIST_TYPE varchar2(90),
PUBLISH_DATE date,
PUBSH_PERIOD varchar2(30) NOT NULL,
PL_KEY decimal(22),
LIST varchar2(750),
EL_KEY decimal(22),
NEL varchar2(60) }
控制台中的错误:
org.hibernate.SQL - SELECT distinct pub.nel, pub.list, pub.prod, pub.prod_desc FROM PUBSH WHERE pub.prod in ('12345')
org.hibernate.jdbc.AbstractBatcher - about to open ResultSet (open ResultSets: 0, globally: 0)
org.hibernate.type.StringType - could not read column value from result set; Invalid column name
org.hibernate.jdbc.AbstractBatcher - about to close ResultSet (open ResultSets: 1, globally: 1)
org.hibernate.jdbc.AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
org.hibernate.util.JDBCExceptionReporter - could not execute query [SELECT distinct pub.nel, pub.list, pub.prodr, pub.desc FROM PUBSH WHERE pub.prod in ('12345')]
java.sql.SQLException: Invalid column name
at oracle.jdbc.driver.OracleStatement.getColumnIndex(OracleStatement.java:3711)
at oracle.jdbc.driver.OracleResultSetImpl.findColumn(OracleResultSetImpl.java:2806)
at oracle.jdbc.driver.OracleResultSet.getString(OracleResultSet.java:498)
at weblogic.jdbc.wrapper.ResultSet_oracle_jdbc_driver_OracleResultSetImpl.getString(Unknown Source)
at org.hibernate.type.StringType.get(StringType.java:18)
at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:163)
at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:189)
at org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.extract(CustomLoader.java:474)
at org.hibernate.loader.custom.CustomLoader$ResultRowProcessor.buildResultRow(CustomLoader.java:420)
at org.hibernate.loader.custom.CustomLoader.getResultColumnOrRow(CustomLoader.java:317)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:606)
要执行Hibernate的DAO方法:
public List<SearchResult> find(final String Query1) {
return (List<SearchResult>)getHibernateTemplate().execute(new HibernateCallback(){
public Object doInHibernate(Session session) throws HibernateException{
Query query1 = session.createSQLQuery(channelQuery1)
.addScalar("nel",Hibernate.STRING)
.addScalar("price",Hibernate.STRING)
.addScalar("prodr",Hibernate.STRING)
.addScalar("prodcr",Hibernate.STRING)
.setResultTransformer(Transformers.aliasToBean(SearchResult.class));
return query1.list();
}
公共列表查找(最终字符串查询1){
return(List)getHibernateTemplate().execute(new HibernateCallback()){
公共对象doInHibernate(会话会话)引发HibernateeException{
Query query1=session.createSQLQuery(channelQuery1)
.addScalar(“nel”,Hibernate.STRING)
.addScalar(“price”,Hibernate.STRING)
.addScalar(“prodr”,Hibernate.STRING)
.addScalar(“prodcr”,Hibernate.STRING)
.setResultTransformer(Transformers.aliasToBean(SearchResult.class));
返回query1.list();
}
请告知为什么通过hibernate访问时出现无效列名错误?您正在创建SQL查询,但标量属性与表中声明的不同:
.addScalar("prodNbr",Hibernate.STRING)
.addScalar("prodDescr",Hibernate.STRING)
这些属性在表中声明为PROD_NBR
和PROD_DESC
,因此将代码更改为
.addScalar("CHANNEL",Hibernate.STRING)
.addScalar("PRICELIST",Hibernate.STRING)
.addScalar("PROD_NBR",Hibernate.STRING)
.addScalar("PROD_DESC",Hibernate.STRING)
Query1的值是多少?同时激活sql查询日志并查看hibernate正在执行的查询Query1没有执行,我在执行hibernate时出错,问题部分更新了sql日志。请不要以这种方式删除问题的内容,因为这会使答案看起来不相关。我看不到任何删除内容当你张贴时,你同意了CC-WiKi许可证的内容。不,请删除这个问题。我已经张贴了实际的表和字段列表。你能考虑请求并删除问题吗?@ USE2444,没有关于你的问题的任何自信的信息,可以被另一个人使用。
.addScalar("CHANNEL",Hibernate.STRING)
.addScalar("PRICELIST",Hibernate.STRING)
.addScalar("PROD_NBR",Hibernate.STRING)
.addScalar("PROD_DESC",Hibernate.STRING)