DWR 例子 -填充 select
<%@ page language="java" pageEncoding="UTF-8"%><%String path = request.getContextPath();%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <title>My JSP 'dwrTest2.jsp' starting page</title><!--<link rel="stylesheet" type="text/css" href="styles.css">--><script type="text/javascript" src="<%=path %>/dwrjs/util.js"></script><script type="text/javascript" src="<%=path %>/dwrjs/engine.js"></script><script type="text/javascript" src="<%=request.getContextPath() %>/dwr/interface/testDwrService.js"></script> <script type="text/javascript"> function showSelect(){ var svalue = DWRUtil.getValue("hiddenId"); //alert('param = ' + svalue); testDwrService.returnSelect(svalue,function(data){ DWRUtil.removeAllOptions('selectId'); DWRUtil.addOptions('selectId',data); }); } </script> </head> <body style="margin-left: 300px"> This is my JSP page. <br> <form action="#" method="post" name="frm"> <input type="button" value="Button" onclick="showSelect()"/> <input type="hidden" id="hiddenId" value="selectValue"> <select id="selectId"> </select> </form> </body></html>package com.dwr;import java.util.List;public class TestDwrService2 {public String[] returnSelect(String sValue){System.out.println("returnSelect sValue ： "+ sValue);String[] opsArray = new String[3];opsArray[0] = "选项 1";opsArray[1] = "选项 2";opsArray[2] = "选项 3";return opsArray;}}<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN" "http://www.getahead.ltd.uk/dwr/dwr10.dtd"> <dwr> <allow> <create creator="new" javascript="testDwrService"> <param name="class" value="com.dwr.TestDwrService2" /> </create> </allow></dwr>
<!-- dwr --> <servlet> <servlet-name>dwr-invoker</servlet-name> <servlet-class> org.directwebremoting.servlet.DwrServlet </servlet-class> <init-param> <param-name>debug</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param> </servlet> <servlet> <description>This is the description of my J2EE component</description> <display-name>This is the display name of my J2EE component</display-name> <servlet-name>ExcelServlet</servlet-name> <servlet-class>com.excel.ExcelServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>dwr-invoker</servlet-name> <url-pattern>/dwr/*</url-pattern> </servlet-mapping>