dream.in.java

c.tld里關于out標簽的定義

請看c.tld里關于out標簽的定義：

 <tag>

    <description>

        Like &lt;%= ... &gt;, but for expressions.

    </description>

    <name>out</name>

    <tag-class>org.apache.taglibs.standard.tag.rt.core.OutTag</tag-class>

    <body-content>JSP</body-content>

    <attribute>

        <description>

Expression to be evaluated.

        </description>

        <name>value</name>

        <required>true</required>

        <rtexprvalue>true</rtexprvalue>

    </attribute>

    <attribute>

        <description>

Default value if the resulting value is null.

        </description>

        <name>default</name>

        <required>false</required>

        <rtexprvalue>true</rtexprvalue>

    </attribute>

    <attribute>

        <description>

Determines whether characters &lt;,&gt;,&amp;,'," in the

resulting string should be converted to their

corresponding character entity codes. Default value is

true.

        </description>

        <name>escapeXml</name>

        <required>false</required>

       <rtexprvalue>true</rtexprvalue>

    </attribute>

 </tag>
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Dear my visitors. Could you share your own understanding of the express"<rtexprvalue>true</rtexprvalue>"with me?I possible, could you give me some example?
What is more, I can't really seize the sentence below:
自定義標志的tld中的<attribute>結構中的rtexprvalue 屬性是在運行時刻動態計算還是取編譯進行時的靜態值，如果為true，它就取得靜態值，即：必須給它顯現賦值，如
 

posted on 2009-02-15 09:51 YXY 閱讀(765) 評論(0)  編輯  收藏