语源科技BlogJava-javamealhttp://www.blogjava.net/javameal/难得认真！zh-cnFri, 10 Apr 2026 20:44:24 GMTFri, 10 Apr 2026 20:44:24 GMT60ssh中往oracle存储blob数据出现的一些错误(备忘)http://www.blogjava.net/javameal/archive/2009/05/06/269258.htmljavamealjavamealWed, 06 May 2009 08:08:00 GMThttp://www.blogjava.net/javameal/archive/2009/05/06/269258.htmlhttp://www.blogjava.net/javameal/comments/269258.htmlhttp://www.blogjava.net/javameal/archive/2009/05/06/269258.html#Feedback0http://www.blogjava.net/javameal/comments/commentRss/269258.htmlhttp://www.blogjava.net/javameal/services/trackbacks/269258.html一，错误:java.lang.ClassCastException: oracle.sql.BLOB
        一般在存储blob数据时首先要将java.sql.Blob类型转为oracle.sql.BLOB再进行写入操作，在强制转换时就会丢
java.lang.ClassCastException: oracle.sql.BLOB转型错误，形如:
        SerializableBlob sb = (SerializableBlob) instance.getBlobData();
        BLOB wrapblob = (BLOB) sb.getWrappedBlob();//此行丢出
       主要原因少此行:session.refresh(instance, LockMode.UPGRADE);加锁查询出，这样instance中存放的Blob数据就
是oracle.sql.BLOB类型的。

二,错误:SQL Error: 1002, SQLState: 72000,ORA-01002: 提取违反顺序 出现这样的错误一定是事务没有控制好，用ssh
框架请检查调用此功能的method是否在事务控制中，直接用hibernate操作是否有开事务。正确配置好事务就不会有
问题了。

javameal 2009-05-06 16:08 发表评论
]]>ajax丢：XML descendants internal method called on incompatible HTMLDocument http://www.blogjava.net/javameal/archive/2008/04/10/191709.htmljavamealjavamealWed, 09 Apr 2008 16:00:00 GMThttp://www.blogjava.net/javameal/archive/2008/04/10/191709.htmlhttp://www.blogjava.net/javameal/comments/191709.htmlhttp://www.blogjava.net/javameal/archive/2008/04/10/191709.html#Feedback0http://www.blogjava.net/javameal/comments/commentRss/191709.htmlhttp://www.blogjava.net/javameal/services/trackbacks/191709.htmlaction="" type="post">....</s:form>,问题就出在这里，将action属性赋值,eg:action="xxxxAction.action"就好了，或者干脆将action属性砍掉！一切正常！！

javameal 2008-04-10 00:00 发表评论
]]>java.lang.NoSuchMethodError: org.apache.commons.collections.SetUtils.orderedSet(Ljava/util/Set;)Ljava/util/Set;http://www.blogjava.net/javameal/archive/2008/04/02/190297.htmljavamealjavamealWed, 02 Apr 2008 02:44:00 GMThttp://www.blogjava.net/javameal/archive/2008/04/02/190297.htmlhttp://www.blogjava.net/javameal/comments/190297.htmlhttp://www.blogjava.net/javameal/archive/2008/04/02/190297.html#Feedback3http://www.blogjava.net/javameal/comments/commentRss/190297.htmlhttp://www.blogjava.net/javameal/services/trackbacks/190297.html

javameal 2008-04-02 10:44 发表评论
]]>No configuration found for the specified action处理http://www.blogjava.net/javameal/archive/2008/03/18/187009.htmljavamealjavamealTue, 18 Mar 2008 07:19:00 GMThttp://www.blogjava.net/javameal/archive/2008/03/18/187009.htmlhttp://www.blogjava.net/javameal/comments/187009.htmlhttp://www.blogjava.net/javameal/archive/2008/03/18/187009.html#Feedback6http://www.blogjava.net/javameal/comments/commentRss/187009.htmlhttp://www.blogjava.net/javameal/services/trackbacks/187009.html WARN - No configuration found for the specified action: 'xxxxx'in namespace: '/'. Form action defaulting to 'action' attribute's literal value.
主要由于在写struts2表单时有给action指定全名，如:<s:form action="xxxAction.do"...>,直接写成<s:form action="xxxAction"...>即可,因为
在struts.xml中struts.action.extension属性有指定啦。

javameal 2008-03-18 15:19 发表评论
]]>struts2.0.11与el不兼容处理http://www.blogjava.net/javameal/archive/2008/03/18/186906.htmljavamealjavamealTue, 18 Mar 2008 01:01:00 GMThttp://www.blogjava.net/javameal/archive/2008/03/18/186906.htmlhttp://www.blogjava.net/javameal/comments/186906.htmlhttp://www.blogjava.net/javameal/archive/2008/03/18/186906.html#Feedback0http://www.blogjava.net/javameal/comments/commentRss/186906.htmlhttp://www.blogjava.net/javameal/services/trackbacks/186906.html 下面是一段分页所用的循环:
<c:forEach var="i" begin="1" end="${requestScope.page.afterPage}" step="1">
    <c:if
     test="${requestScope.page.indexPage<requestScope.page.totalPage && requestScope.page.indexPage+i<requestScope.page.totalPage}">
     <s:url id="afterUrl" value="/photoItemsList.html">
          <s:param name="indexPage" value="${requestScope.page.indexPage+i}" /><!-- struts2.0.11中已不支持el，因而<s:url>将取不到相关值-->
     </s:url>
     <s:a theme="ajax" href="%{afterUrl}" indicator="indicator" showLoadingText="false" targets="pageItems">
          <c:out value="${requestScope.page.indexPage+i}" />&nbsp;</s:a>
    </c:if>
   </c:forEach>

修改成如下：
<c:forEach var="i" begin="1" end="${requestScope.page.afterPage}" step="1">
    <c:set value="${i}" var="var"/>
    <c:if   test="${requestScope.page.indexPage<requestScope.page.totalPage && requestScope.page.indexPage+i<requestScope.page.totalPage}">
     <s:url id="afterUrl" value="/photoItemsList.html">
          <s:param name="indexPage" value="#request.page.indexPage+#attr.var" />
     </s:url>
     <s:a theme="ajax" href="%{afterUrl}" indicator="indicator" showLoadingText="false" targets="pageItems">
          <c:out value="${requestScope.page.indexPage+i}" />&nbsp;</s:a>
    </c:if>
   </c:forEach>





javameal 2008-03-18 09:01 发表评论
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