我在 Liferay 中部署的 Spring MVC 中开发了一个 portlet。显然，我对 portlet View 模式的呈现阶段有疑问。
View 模式 Controller
package graphui.controller;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.ModelAndView;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import org.springframework.web.portlet.bind.annotation.RenderMapping;
/**
*
* Controller for VIEW mode of portlet.
*/
@Controller("graphViewController")
@RequestMapping(value = "VIEW")
public class GraphViewController{
@ActionMapping
public void handleActionRequest(ActionRequest request, ActionResponse response)throws Exception {
return;
}
@RenderMapping
public ModelAndView handleRenderRequest(RenderRequest request, RenderResponse response, ModelMap model) {
model.addAttribute("nodes", "123");
model.addAttribute("edges", "123");
return new ModelAndView("index", model);
}
}
index.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c"
uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
</head>
<body>
</body>
<script type="text/javascript">
var nodes = ${nodes};
var edges = ${edges};
</script>
</html>
Tomcat日志输出
ERROR [http-bio-8080-exec-29][render_portlet_jsp:132] null
org.springframework.web.portlet.NoHandlerFoundException: No handler found for portlet request: mode 'view', phase 'RENDER_PHASE', parameters map[[empty]]
at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103)
at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:55)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:605)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:544)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:604)
at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:677)
at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:379)
at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1230)
有人知道问题出在哪里吗？谢谢。
最佳答案
context:component-scan 中的
base-package 路径设置错误。
关于portlet - 找不到 portlet 请求 : mode 'view' , 阶段 'RENDER_PHASE' 的处理程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28629225/