解决Jquery下拉框数据动态获取的问题
编程学习 2021-07-04 17:33www.dzhlxh.cn编程入门
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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;
}
}
以上这篇解决Jquery下拉框数据动态获取的问题就是长沙网络推广分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持狼蚁SEO。