jsp 什么时候能支持ognl，像支持el一样

el在html标签中能不能直接取ognl栈里的值？

[quote]el在html标签中能不能直接取ognl栈里的值？ [/quote]
可以取出一部分吧。

[b]看实验：[/b]
[code="java"]public class ELAction {

private String actionParam;

public String getActionParam() {
    return actionParam;
}
public void setActionParam(String actionParam) {
    this.actionParam = actionParam;
}
public String execute(){
    actionParam = "This is action Field";
    ActionContext.getContext().put("requestParam", "This is request Param");
    ActionContext.getContext().getSession().put("sessionParam", "This is session Param");
    ActionContext.getContext().getApplication().put("applicationParam", "This is Application Param");
    return "success";
}

}[/code]
[code="java"]
Action中的值：${actionParam}

Request中的值：${requestParam}

Session中的值：${sessionParam}

Application中的值：${applicationParam}
[/code]

[b]输出：[/b]
Action中的值：This is action Field
Request中的值：This is request Param
Session中的值：This is session Param
Application中的值：This is Application Param