How to dynamically obtain data in drop-down box with Jquery-JS Tutorial-php.cn

How to dynamically obtain data in drop-down box with Jquery

亚连

Release： 2018-06-09 15:29:12

Original

2193 people have browsed it

Below I will share with you an article that solves the problem of dynamic acquisition of Jquery drop-down box data. It has a good reference value and I hope it will be helpful to everyone.

Without further ado, let’s go directly to the source code:

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 &#39;select.jsp&#39; 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=&#39;" + id + "&#39;>" + 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=&#39;" + id + "&#39;>" + 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>

Copy after login

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>

Copy after login

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;
	}
	
}

Copy after login

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future. helpful.

How to solve the problem of niceScroll scroll bar misalignment in jQuery

How to implement Baidu search interface in JS

How to implement the double-color ball function in JS

How to implement the snow animation effect in jQuery

The above is the detailed content of How to dynamically obtain data in drop-down box with Jquery. For more information, please follow other related articles on the PHP Chinese website!