动态提交表单（对数字的排序）_提交表单时数据排序-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_34321070/article/details/51589786

本文介绍了一个使用JSP、HTML、jQuery等技术实现的动态表单提交与排序功能。用户可以输入数字并选择正序或倒序进行排序，通过前端JavaScript动态改变表单提交地址实现不同的排序请求。

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<pre name="code" class="html"><%--
作者：<strong><em><span style="color:#ff0000;">我是你们的小星星</span></em></strong>
create by idea on 2016.6.5

动态提交表单
所用技术：
        1、jsp
        2、html
        3、jquery
        4、java基础
        5、javaScript
--%>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.util.Arrays" %>
<html>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" src="js/jquery-1.12.4.min.js"></script>

    <%
        Integer [] info = (Integer []) request.getAttribute("array");
    %>
</head>
<body>

<div align="center" width="80%">
    <form action="" method="post" id="form1">
        请输入数字：<input type="text" id="text1" name="num">
        <button id="btn1">正序</button>
        <button id="btn2">倒序</button><br/>
    </form>
    <span ><font color="red">
            <%
                if (info != null){
            %>
            <%=Arrays.toString(info)%>
            <%
                }
            %>
        </font></span>
</div>

<script type="text/javascript" charset="utf-8">
    $(document).ready(function () {
        $("#btn1").click(function () {
            $("#form1").attr("action" , "sort.jsp?sort=positive").submit();//动态提交
        });
    });
</script>

<script type="text/javascript" charset="utf-8">
    $(document).ready(function () {
        $("#btn2").click(function () {
            $("#form1").attr("action" , "sort.jsp?sort=reverse").submit();//动态提交

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<pre style="font-family: 宋体; font-size: 13.5pt; background-color: rgb(255, 255, 255);">

<%--
作者：<em><span style="color:#ff6666;"><strong>我是你们的小星星</strong></span></em>
create by idea on 2016.6.5
动态提交表单
所用技术：
        1、jsp
        2、html
        3、jquery
        4、java基础
        5、javaScript
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.util.Arrays" %>
<%@ page import="java.util.Comparator" %>
<html>
<head>
    <title>Title</title>
    <%
        String info = request.getParameter("sort");
        String str;
        String[]data;
        Integer[]num;
        if(info.equals("positive")){
            str = request.getParameter("num");
            data = str.split(",");
            num = new Integer[data.length];
            for (int i = 0; i < data.length; i++) {
                num[i] = Integer.parseInt(data[i]);
            }
            Arrays.sort(num);
            request.setAttribute("array" , num);
            request.getRequestDispatcher("index.jsp").forward(request,response);
        }else {
            str = request.getParameter("num");
            data = str.split(",");
            num = new Integer[data.length];
            for (int i = 0; i < data.length; i++) {
                num[i] = Integer.parseInt(data[i]);
            }
            Arrays.sort(num, new Comparator<Integer>() {
                @Override
                public int compare(Integer o1, Integer o2) {
                    return -(o1 - o2);
                }
            });
            request.setAttribute("array" , num);
            request.getRequestDispatcher("index.jsp").forward(request,response);
        }
    %>
</head>
<body>
</body>
</html>

}); });</script></body></html>