java.sql.SQLException: ORA-01722: 无效数字

[eStore]2011-12-15 13:47:21,890 ERROR Probably an exception caught by Spring MVC, check the debug info which may help identifying the error. | reportError_jsp._jspService(121)
[eStore]2011-12-15 13:47:21,890 ERROR Detailed JSP Exception: | reportError_jsp._jspService(125)
org.hibernate.exception.SQLGrammarException: could not execute query
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.loader.Loader.doList(Loader.java:2216)


	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: ORA-01722: 鏃犳晥鏁板瓧

  经过多次测试发现：

String hql="from Customer t where t.telephone='"+tel+"'";//可以
String hql="from Customer t where t.telephone="+tel;//报错

 查原因：估计是oracle会将变化一下where to_numer( t.telephone)。

所以出现以上错误，转化一下试试