Question

freemarker遍历list问题

freemarker.template.TemplateException: Expected collection or sequence. articleList evaluated instead to org.apache.struts2.views.freemarker.StrutsBeanWrapper$FriendlyMapModel on line 10, column 8 in cms/page/article/list.htm.
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:135)
at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:190)
at freemarker.core.Environment.visit(Environment.java:416)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Environment.process(Environment.java:189)
at freemarker.template.Template.process(Template.java:237)
at org.apache.struts2.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:187)
at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:163)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:249)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)

Answer 1

你后台设值成map了，应该传list；
Expected collection or sequence. articleList evaluated instead to org.apache.struts2.views.freemarker.StrutsBeanWrapper$FriendlyMapModel

期望一个集合或列表代替map