设计思路参考昨天写的《关于RCP与Web交互的一些设计思路 》，使用了Spring MVC，特别使用了Spring对于CoC（Convention over Configuration，惯例优先原则）的支持，由于需要富文本编辑器，因此我选择了著名的FCKEditor。由于我不需要支持上传功能，因此没有用FCKEditor的Java包。
虽然我使用的是Spring3，但是我没有使用其对REST的支持，也没有使用注解。
所需要的其他Jar包包括：
1 antlr-2.7.5H3
2 antlr.jar
3 bsh-1.3.0.jsr
4 cglib-nodep-2.1_3.jar
5 com.springsource.org.antlr-3.0.0.M2.jar
6 asm-2.2.2.jar
7 asm-commons-2.2.2.jar
需要用这些包替换项目中已经有的其他antlr，cglib，asm包，否则就会报相应的错误。
FCKEditor是2.6版。
我的文件结构如下:
RestOnSpring
-src
-org.jport.samples.web.mvc
-RichEditorController.java
-WebRoot
|-fckeditor
+editor
|-fckconfig.js
|-fckeditor.js
|-fckpackager.xml
|-fckstyles.xml
|-fcktemplates.xml
|-WEB-INF
|-jsp
|-richeditor
|-create.jsp
|-display.jsp
|-applicationContext.xml
|-richeditor-servlet.xml
|-web.xml
在上篇文章里，我设计好了如下的URI：
显示新增页面 richeditor/create
保存 richeditor/save。对于是新增还是修改，需要借助Form中的一个隐藏域，<input type='hidden' id='id' value='<%=id%>'/>，将id置于表述之中而不是URI中，传给Web服务器，这样做是因为表述包含了我要传递的数 据，将相当于RPC（远程过程调用）中的数据对象，然后借用Hibernate中saveOrUpdate的思想，如果该id==null则意味着新增， 否则意味着修改。
显示阅读页面 richeditor/diplay?id=123
显示修改页面 richeditor/edit?id=123
RichEditorController.java如下
package org.jport.samples.web.mvc; import java.lang.annotation.Annotation; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.multiaction.MultiActionController; /** * The central richeditor * {@link org.springframework.web.servlet.mvc.Controller} implementation for the * application. * * @author sslaowan */ public class RichEditorController extends MultiActionController{ public ModelAndView create(HttpServletRequest request, HttpServletResponse response) throws Exception { return new ModelAndView(); } public ModelAndView edit(HttpServletRequest request, HttpServletResponse response) throws Exception { String id = (String) request.getParameter("id"); //通过调用业务服务，根据id返回要修改的内容 String text=(String) request.getParameter("value"); ModelAndView mv = new ModelAndView("forward:/richeditor/create.htm"); mv.addObject("id", id); mv.addObject("value", text); return mv; } public ModelAndView display(HttpServletRequest request, HttpServletResponse response) throws Exception { String id=(String) request.getParameter("id"); //通过调用业务服务，根据id返回要修改的内容 String text=id; request.setAttribute("value", text); return new ModelAndView(); } public ModelAndView save(HttpServletRequest request, HttpServletResponse response) throws Exception { String text = request.getParameter("FCKeditor1"); String id=request.getParameter("id"); if("".equals(id)){ System.out.println("save:"+text); }else{ System.out.println("update:"+text); } ModelAndView mv = new ModelAndView("forward:/richeditor/display.htm?id="+text); mv.addObject("value", text); return mv; } }
richeditor-servlet.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd"> <!-- maps request URLs to Controller names --> <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" /> <!-- Controller names are not important when using the above HandlerMapping implementation--> <bean class="org.jport.samples.web.mvc.RichEditorController" /> <!-- this bean with the well known name generates view names for us --> <!-- not strictly required since we just want to accept the defaults--> <bean id="viewNameTranslator" class="org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> </beans>
create.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <%String value=(String)request.getAttribute("value")==null?"":(String)request.getAttribute("value"); %> <%String id=(String)request.getAttribute("id")==null?"":(String)request.getAttribute("id"); %> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>FCKeditor - Sample</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script type="text/javascript" src="../fckeditor/fckeditor.js"></script> </head> <body> <form action="/RestOnSpring/richeditor/save.htm" method="post"> <input type="hidden" name='id' value='<%=id%>'/> <script type="text/javascript"> <!-- var sBasePath = '/RestOnSpring/fckeditor/' ; var oFCKeditor = new FCKeditor( 'FCKeditor1' ) ; oFCKeditor.BasePath = sBasePath ; oFCKeditor.Height = 300 ; oFCKeditor.Value = '<%=value%>' ; oFCKeditor.Create() ; //--> </script> <br /> </form> </body> </html>
display.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%String value=(String)request.getAttribute("value")==null?"":(String)request.getAttribute("value"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body> <div> <form action="/RestOnSpring/richeditor/edit.htm?id=<%=value%>" method="post"> <input type="submit" value="编辑" /> </form> </div> <hr /> <%=value%> </body> </html>
为了单纯的测试Web层，我通过在页面间传递文本内容(通过mv.addObject("value",text);这句话与request.setAttribute("value",text);等价)来模拟保存的数据，用String text=id或者是打印语句的方式来模拟业务。
相关资源：敏捷开发V1.0.pptx