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复制代码 代码如下: <PRE class=javascript name="code"></PRE><PRE class=javascript name="code">—————————————————————这是ajax(javascript)代码———————————————————————————</PRE><PRE class=javascript name="code"></PRE><PRE class=javascript name="code">function send_request(callback, urladdress, isReturnData){ var xmlhttp = getXMLHttpRequest(); xmlhttp.onreadystatechange = function(){ if (xmlhttp.readyState == 4) {//readystate 为4即数据传输结束 try{ if(xmlhttp.status == 200){ if(isReturnData && isReturnData==true){ callback(xmlhttp.responseText); } }else{ callback("抱歉,没找到此页面:"+ urladdress +""); } } catch(e){ callback("抱歉,发送请求失败,请重试 " + e); } } } xmlhttp.open("POST", urladdress, true); xmlhttp.send(null); } function getXMLHttpRequest() { var xmlhttp; if (window.XMLHttpRequest) { try { xmlhttp = new XMLHttpRequest(); xmlhttp.overrideMimeType("text/html;charset=UTF-8");//设定以UTF-8编码识别数据 } catch (e) {} } else if (window.ActiveXObject) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { try { xmlhttp = new ActiveXObject("Msxml2.XMLHttp"); } catch (e) { try { xmlhttp = new ActiveXObject("Msxml3.XMLHttp"); } catch (e) {} } } } return xmlhttp; } </PRE>————————————————————————这是客户端表单jsp代码——————————————————————————————<BR> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="/struts-tags" prefix="s"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title><script type="text/javascript" src="<%=request.getContextPath()%>/js/xmlhttp.js"></script><script type="text/javascript">function getProcess(value) {var process = document.getElementById('process');send_request(function(value2) {process.innerHTML = value2;}, "getProcessType.action?value="+value, true);}</script></head><body><div><form action="" method="post" name="form"><select name="process" onchange="getProcess(this.value)"><option value="0" selected>请选择流程种类</option><option value="Y">业务流程</option><option value="G">管理流程</option><option value="Z">支持流程</option></select><div id="process"><select name="smallclass"><option value="一级流程名称" selected>请选择一级流程名称</OPTION></select></div><input type="submit" value="提交"></form></div></body></html> <PRE></PRE> <BR> <P><PRE class=html name="code"><PRE class=html name="code">————————————————————————这是服务端action代码——————————————————————————————</PRE><BR> <P></P> <PRE></PRE> 这里是我的业务逻辑,每个逻辑不同,所以这段代码这只是为了把想要显示的内容放在request范围内,然后return到下一个页面.javabean中有我的MyProcess类和它的属性 <P></P> <P><PRE class=java name="code">public String getProcessType(){ HttpServletRequest request=ServletActionContext.getRequest(); String value=request.getParameter("value"); List<MyProcess> MyProcesses= processService.getProcessByType(value); for(MyProcess p:MyProcesses){ System.out.println(p.getName()); } request.setAttribute("list",MyProcesses); return SUCCESS; }</PRE><PRE class=html name="code"></PRE><PRE class=html name="code"></PRE><PRE class=html name="code">————————————————————————这是服务端jsp代码——————————————————————————————</PRE><PRE class=html name="code"><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ include file="/page/share/taglib.jsp"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <select name="smallclass"> <option value="一级流程名称" selected>请选择一级流程名称</OPTION> <c:forEach items="${list}" var="myprocess"> <option value="${myprocess.processID}" > ${myprocess.name} </option> </c:forEach> </select> </body> </html></PRE><BR> <BR> <P></P> <P>这个过程差不多就这些!</P> <P><BR> </P> </PRE> |
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