支持什么版本的EL和SET?我试图用Java表达式语言定义一组数据的
${{"cat", "dog", "giraffe"}}
我得到以下异常:
javax.el.ELException: Failed to parse the expression [${{"cat", "dog", "giraffe"}]
org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:146)
org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:172)
org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:217)
org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:67)
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:1025)
org.apache.jsp.user_jsp._jspService(user_jsp.java:78)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
EL 3+,IIRC .... –