samshi

structs2 的 if標簽怎么做判斷???請各位幫幫看看!!!謝謝了.
我在jsp里寫

 <s:label label="中文名" value="${artistVO.chineseName}"/>

我要在頁面輸出"中文名"的時候,做一個判斷,就是中文名不是 "無"或"缺" 的時候再輸出.
用<s:if test="">該怎么寫?
structs2文檔里有一段關于<s:if test="">的例子

<s:if test="'foo' in {'foo','bar'}">
   muhahaha
</s:if>
于是我照葫蘆畫瓢
 <s:if test="${'artistVO.chineseName' not in {'null','','無','缺','未知'}}">
 <s:label label="中文名" value="${artistVO.chineseName}"/>
</s:if>

沒有中文的時候還都正確,遇到中文的時候就不對了.這難道是中文問題嗎?

我在用hibernate對mysql進行分頁的方法
/**
  * 函數說明：獲得所有的信息
  * 參數說明：
  * 返回值：信息的集合
  */
 public List getProducts(final int pageSize, final int startRow) throws HibernateException { 
     return this.getHibernateTemplate().executeFind(new HibernateCallback(){

         public Object doInHibernate(Session session) throws HibernateException, SQLException {
        
             Query query=session.createQuery("FROM Products as p");
             query.setMaxResults(pageSize);
             query.setFirstResult(startRow);    
    
             List list = query.list();
       
             return list;
         }
        });

 }

運行時怎么老給出異常阿？請幫幫我看看好嗎？
org.springframework.orm.hibernate3.HibernateJdbcException: JDBC exception on Hibernate data access; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query
org.hibernate.exception.SQLGrammarException: could not execute query
java.sql.SQLException: Syntax error or access violation,  message from server: "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '40 products0_.game_id as game1_0_, products0_.game_name_en as game2_0_, products' at line 1"

最近使用ant時,遇到了一個小難題,在一個名為冰浪的blog的提示下解決了.現在把它貼出來.
首先判斷cvs下有沒有tag文件,如果有,就copy到當前目錄,如果沒有就調用java類創建,并寫入當前
日期,然后在copy
<condition property="exist.tag">?
????<and>?
????????<available file="Tag" filepath="CVS/"/>?
????</and>
</condition>
<target name="copytag" if="exist.tag">?
????<copy file="CVS/Tag" todir="temp"/>
</target>
<target name="createtag" unless="exist.tag" depends="copytag">?
????<java classname="com.xxx.pub.Tag">
????????<classpath>
????????????? <pathelement location="${build}"/>??????????
???????? </classpath>
????</java>
?<copy file="Tag" todir="temp" failonerror="false"/>
</target>