<a href=" get(url) failed on instance of com.jeecms.cms.entity.main.Content The problematic instruction: ---------- ==> ${content.url} [on line 136, column 26 in jeecms_sys/content/list.html] in user-directive p.column [on line 132, column 9 in jeecms_sys/content/list.html] in user-directive p.table [on line 127, column 1 in jeecms_sys/content/list.html] ---------- Java backtrace for programmers: ---------- freemarker.template.TemplateModelException: get(url) failed on instance of com.jeecms.cms.entity.main.Content at freemarker.ext.beans.BeanModel.get(BeanModel.java:223) at freemarker.core.Dot._getAsTemplateModel(Dot.java:76) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.Environment.visit(Environment.java:395) at freemarker.core.BodyInstruction.accept(BodyInstruction.java:93) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.IfBlock.accept(IfBlock.java:82) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.Macro$Context.runMacro(Macro.java:172) at freemarker.core.Environment.visit(Environment.java:603) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.Environment.visit(Environment.java:395) at freemarker.core.BodyInstruction.accept(BodyInstruction.java:93) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179) at freemarker.core.Environment.visit(Environment.java:417) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.Macro$Context.runMacro(Macro.java:172) at freemarker.core.Environment.visit(Environment.java:603) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.Environment.process(Environment.java:190) at freemarker.template.Template.process(Template.java:237) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:366) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:283) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:233) at  求解决！

<a href=" get(url) failed on instance of com.jeecms.cms.entity.main.Channel The problematic instruction: ---------- ==> ${c.url} [on line 14, column 22 in WEB-INF/t/cms/www/red/include/页头导航栏.html] in user-directive cms_channel_list [on line 8, column 9 in WEB-INF/t/cms/www/red/include/页头导航栏.html] in include "../include/页头导航栏.html" [on line 38, column 1 in WEB-INF/t/cms/www/red/index/首页.html] ---------- Java backtrace for programmers: ---------- freemarker.template.TemplateModelException: get(url) failed on instance of com.jeecms.cms.entity.main.Channel at freemarker.ext.beans.BeanModel.get(BeanModel.java:223) at freemarker.core.Dot._getAsTemplateModel(Dot.java:76) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179) at freemarker.core.Environment.visit(Environment.java:417) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:210) at freemarker.core.Environment$1.render(Environment