废话不多说，直接上源码：
select.jsp
<%@ page language="java" import="java.util.*" pageencoding="utf-8"%> <% string path = request.getcontextpath(); string basepath = request.getscheme()+"://"+request.getservername()+":"+request.getserverport()+path+"/"; %> <!doctype html public "-//w3c//dtd html 4.01 transitional//en"> <html> <head> <base href="<%=basepath%> rel=external nofollow > <title>my jsp 'select.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" > --> <script type="text/javascript" src="js/jquery-2.1.1.min.js" charset="utf-8"></script> <script type="text/javascript"> function get_app_type() { $.ajax({ type: post, url: apptypeshow.action, //获取json数据 datatype: json, success: function(data) { var d = eval(( + data + )); for(var i = 0; i < d.length; i++) { var id = d[i].id; var name = d[i].name; var opt = "<option value='" + id + "'> + name + </option>; $(#apptype).append(opt); } }, error: function() { alert(系统异常，请稍后再试！) } }); } function get_app_class() { $.ajax({ type: post, url: appclassshow.action, datatype: json, success: function(data) { var d = eval(( + data + )); for(var i = 0; i < d.length; i++) { var id = d[i].id; var name = d[i].name; var opt = "<option value='" + id + "'> + name + </option>; $(#appclass).append(opt); } }, error: function() { alert(系统异常，请稍后再试！) } }); } $(document).ready(function() { get_app_type(); get_app_class(); }); </script> </head> <body> <table> <tr> <td align="right">app类型:</td> <td align="left"> <select name="apptype" id="apptype" style="margin-left: 16px; height: 30px; width: 110px; text-align: left; size: 3; color: #505050;"> <option value="-1">---请选择---</option> </select> </td> </tr> <tr height="25px"><td> </td></tr> <tr> <td align="right">app种类:</td> <td align="left"> <select name="appclass" id="appclass" style="margin-left: 16px; height: 30px; width: 110px; text-align: left; size: 3; color: #505050;"> <option value="-1">---请选择---</option> </select> </td> </tr> </table> </body> </html>
struts.xml
<?xml version="1.0" encoding="utf-8" ?> <!doctype struts public "-//apache software foundation//dtd struts configuration 2.1//en" "http://struts.apache.org/dtds/struts-2.1.dtd"> <struts> <constant name="struts.i18n.encoding" value="utf-8"></constant> <package name="simpleton" extends="struts-default,json-default"> <action name="*jsonaction" method="{1}" class="jquery.chisj.action.jsonaction"> <result name="fail">error.jsp</result> <result type="json"> <param name="root">result</param> </result> </action> <action name="apptypeshow" class="jquery.chisj.action.ntappaction" method="apptypeshow"> <result name="fail">error.jsp</result> <result type="json"> <param name="root">result</param> </result> </action> <action name="appclassshow" class="jquery.chisj.action.ntappaction" method="appclassshow"> <result name="fail">error.jsp</result> <result type="json"> <param name="root">result</param> </result> </action> </package> </struts>
ntappaction.java
/** * */ package jquery.chisj.action; import java.util.arraylist; import java.util.list; import jquery.chisj.entity.appclass; import jquery.chisj.entity.apptype; import com.opensymphony.xwork2.actionsupport; import net.sf.json.jsonarray; /** * @classname: ntappaction * @description: todo * @author: chisj chisj@foxmail.com * @date 2016年1月20日 下午4:53:50 */ public class ntappaction extends actionsupport { private string result; public string apptypeshow() { system.out.println(---app type show---); list<apptype> apptypelist = new arraylist<apptype>(); try { apptype apptype_1 = new apptype(); apptype apptype_2 = new apptype(); apptype_1.setid(short.valueof(1)); apptype_1.setname(android); apptype_2.setid(short.valueof(2)); apptype_2.setname(ios); apptypelist.add(apptype_1); apptypelist.add(apptype_2); jsonarray jsonarray = jsonarray.fromobject(apptypelist); result = string.valueof(jsonarray); } catch (exception e) { e.printstacktrace(); } return success; } public string appclassshow() { system.out.println(---app class show---); list<appclass> appclasslist = new arraylist<appclass>(); try { appclass appclass_1 = new appclass(); appclass appclass_2 = new appclass(); appclass_1.setid(short.valueof(1)); appclass_1.setname(种类1); appclass_2.setid(short.valueof(2)); appclass_2.setname(种类2); appclasslist.add(appclass_1); appclasslist.add(appclass_2); jsonarray jsonarray = jsonarray.fromobject(appclasslist); result = string.valueof(jsonarray); } catch (exception e) { e.printstacktrace(); } return success; } public string getresult() { return result; } public void setresult(string result) { this.result = result; } }
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