• ajax+php数据增加查询获取删除


    先上图

    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <link href="css/bootstrap.min.css" rel="stylesheet" />
        <link href="css/button.css" rel="stylesheet" />
        <script src="js/jquery.js"></script>
        <link href="css/font-awesome.css" rel="stylesheet" />
        <link href="css/bootstrap-datetimepicker.min.css" rel="stylesheet" />
        <title></title>
        <style type="text/css">
            .header {
                 100%;
                padding: 0px;
                margin: 0px;
                background-color: #699C03;
            }
    
            .header-nav {
                min- 1170px;
                padding: 15px;
                height: 50px;
            }
    
            .header-nav-left {
                float: left;
                padding-left: 150px;
                 40%;
            }
    
                .header-nav-left h3 {
                    font-size: 18px;
                    line-height: 25px;
                    margin: 0px;
                }
    
            .header-nav-right {
                float: left;
                 59.9999%;
                position: relative;
            }
    
                .header-nav-right ul {
                    padding: 0px;
                    margin: 0px;
                    list-style: none;
                    position: absolute;
                    right: 25px;
                }
    
                    .header-nav-right ul li {
                        float: left;
                        margin-left: 5px;
                        color: #fff;
                    }
    
                        .header-nav-right ul li a {
                            color: #fff;
                            text-decoration: none;
                        }
    
            .content {
                min- 1170px;
                padding: 0px;
                margin: 0px auto;
            }
    
            .content-side {
                 25%;
                float: left;
                margin: 20px 0px;
                padding: 20px;
            }
    
                .content-side ul {
                    padding: 0px 0px 0px 50px;
                    margin: 0px;
                    list-style: none;
                }
    
                    .content-side ul li {
                        margin-bottom: 10px;
                    }
    
                        .content-side ul li a {
                            display: inline-block;
                            padding: 5px 10px;
                            border: 1px solid #ddd;
                            border-radius: 4px;
                            box-shadow: 0px 0px 5px 2px #eee;
                            text-decoration: none;
                        }
    
            .content-right {
                 59.999%;
                margin: 20px 0px;
                padding: 20px;
                float: left;
            }
    
            .content-right-about {
                height: 250px;
                 100%;
            }
    
            .content-right-form {
                margin: 0px auto;
                padding: 0px;
                 100%;
                overflow: hidden;
            }
    
            .write {
                margin-top: 10px;
                height: 250px;
                 99.99%;
                border: 1px solid #BBBBBB;
                border-radius: 4px;
                box-shadow: 0px 0px 5px 2px #DDDDDD;
            }
    
            .btn {
                margin-bottom: 5px;
                border: 1px solid #ccc;
            }
    
            .footer {
                border-top: 1px solid #bbb;
                min- 1200px;
                margin-top: 20px;
            }
    
            .submits button {
                background-color: #4CB0F9;
                border-radius: 4px;
                color: #fff;
            }
    
                .submits button:hover {
                    background-color: #4F9FCF;
                }
                .on{
                    display:none;
                }
                .uptext{
                    100%;
                     display:none;
                     z-index:100;
                }
                .uptext-list{
                    900px;
                    height:auto;
                    margin:0px auto;
                    position:fixed;
                    left:0px;
                    right:0px;
                    top:50px;
                    bottom:0px;
                    z-index:101;
                    background-color:#fff;
                   
                }
                #pages{
                    padding:0px;
                    margin:0px auto;
                    list-style:none;
                }
                #pages li{
                    float:left;
                }
                .tablebody{
                    overflow:hidden;
                }
        </style>
    </head>
    <body style="position:relative">
        <div class="header">
            <div class="header-nav">
                <div class="header-nav-left">
                    <h3>网站后台管理</h3>
                </div>
                <div class="header-nav-right">
                    <ul>
                        <li><span>欢迎到来到网站后台</span></li>
                        <li><a href="" onclick="window.location.reload()">主菜单</a></li>
                        <li><a href="">网站首页</a></li>
                        <li><a href="">后台主页</a></li>
                        <li><a href="">内容发布</a></li>
                        <li><a href="">内容管理</a></li>
                        <li><a href="">退出</a></li>
                    </ul>
                </div>
            </div>
        </div>
        <div class="content">
            <div class="content-side">
                <ul>
                    <li><a href="">删除内容</a></li>
                    <li><a href="">更改内容</a></li>
                    <li><a href="">查询内容</a></li>
                    <li><a href="">搜索内容</a></li>
                </ul>
            </div>
            <div class="content-right">
                <div class="content-right-form">
                    <form id="myform" action="" method="post">
                        <dl>
                            <dt class="lead">标题</dt>
                            <dd><input id="frist" type="text" name="title" class="form-control" /></dd>
                        </dl>
                        <dl>
                            <dt>内容</dt>
                            <dd><textarea name="body" style="100%;height:250px"></textarea></dd>
                        </dl>
                        <div class=" submits row" style="margin-top: 20px;">
                            <div class="col-lg-6 col-md-6">
                                <button id="addtext" type="submit" class="pull-left form-control ">增加</button>
                            </div>
                            <div class="col-lg-6 col-md-6">
                                <button type="reset" class="pull-right form-control ">重置</button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
            <div class="content-right on">
                <table cellpadding="0" class="table table-bordered">
                    <tr class="toptr">
                        <th>标题</th>
                        <th>内容</th>
                        <th>删除</th>
                    </tr>
                    <tbody class="tablebody"></tbody>
                </table>
                <ul id="pages">
                   
                </ul>
            </div>
            <div class="content-right on">
                <table cellpadding="0" class="table table-bordered">
                    <tr class="toptr">
                        <th>标题</th>
                        <th>内容</th>
                        <th>修改</th>
                    </tr>
                    <tbody class="tablebody"></tbody>
                </table>
                <ul id="pages">
                  
                </ul>
            </div>
            <div class="content-right on">
                <table cellpadding="0" class="table table-bordered">
                    <tr class="toptr">
                        <th>标题</th>
                        <th>内容</th>
                    </tr>
                    <tbody class="tablebody"></tbody>
                </table>
                <ul id="pages"></ul>
            </div>
            <div class="uptext">
                <div class="uptext-list">
                    <form id="myform" action="" method="post">
                        <dl>
                            <dt class="lead">标题</dt>
                            <dd><input type="text" name="title" class="form-control" /></dd>
                        </dl>
                        <dl>
                            <dt>内容</dt>
                            <dd><textarea style="100%;height:250px"></textarea></dd>
                        </dl>
                        <div class=" submits row" style="margin-top: 20px;">
                            <div class="col-lg-6 col-md-6">
                                <button id="uptext-button" type="submit" class=" pull-left form-control ">增加</button>
                            </div>
                            <div class="col-lg-6 col-md-6">
                                <button type="button" id="black" class="pull-right form-control ">取消</button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
            <div class="content-right on">
                <div style="padding:20px;" ><label for="search" id="searchs" style="margin-right:5px;border:1px solid #ccc;border-radius:4px;padding:4px;cursor:pointer;color:#fff;background-color:#4CB0F9">搜索</label><input id="key" style="border:1px solid #bbb;border-radius:4px;line-height:14px;font-size:14px;padding:6px 12px"  type="text" placeholder="请输入关键字" /></div>
                <table cellpadding="0" class="table table-bordered">
                    <tr class="toptr">
                        <th>标题</th>
                        <th>内容</th>
                    </tr>
                    <tbody class="tablebody"></tbody>
                </table>
                <ul id="pages">
    
                </ul>
            </div>
            </div>
        <script>
           $(function(){ //增加数据
            $("#addtext").on('click', function () {
                var $titleval = $("input[id=frist]").val(), $bodyval = $("textarea").val()
                if ($titleval == "" || $bodyval == "") {
                    alert("标题与内容不能为空");
                } else {
                    var datas = {
                        title:$titleval,
                        body:$bodyval
                    };
                    $.ajax({
                        type: 'post',
                        timeout: 6000,
                        data: datas,
                        url: 'add.php',
                        async: 'false',
                        success: function (result) {
                            $("input[type=text]").val('');
                               $("textarea").val('');
                               obj = JSON.parse(result);//json字符串类型转换成js对象(如果ajax中指定了dataType为json,那么久不需要转换英文指定了json得到的就是一个对象)
                           if(obj.eger=="false"){
                             alert('标题或内容已存在');
                            }else if(obj=="ture"){
                                alert('添加成功');
                            }
                        } ,
                        error: function () {
                            alert('false');
                        }
    
                    })
                } return false;
            })
            //end
            var table = function () {
                var tablebody = '';
                $.ajax({
                    url: 'select.php',
                    dataType: 'json',
                    type: 'post',
                    success: function (result) {
                        $(".tablebody").empty();
                        $.each(result.datalist, function (i, data) {
                                tablebody += "<tr><td>" + data.title + "</td><td>" + data.body + "</td><td style='text-align:cneter'><span><a href='#' id='remove' textid='" + data.ID + "'>删除</a></td></tr>"
                        })
                        $(".tablebody").html(tablebody);
                    }
                })
            }
            var table1 = function(){
                var tablebody = '';
                $.ajax({
                    url: 'select.php',
                    dataType: 'json',
                    type: 'post',
                    success: function (result) {
                        $(".tablebody").empty();
                        $.each(result.datalist, function (i, data) {
                                tablebody += "<tr><td id='title'>" + data.title + "</td><td id='bodyval'>" + data.body + "</td><td  style='text-align:cneter'><span><a href='#' id='uptext' textid='" + data.ID + "'>修改</a></td></tr>"
                        })
                        $(".tablebody").html(tablebody);
                    }
                })
            }
            //查询翻页star
            var page = 0,//当前页初始化
              onepage = 2,//每页数
              all = 0,
              pagenum = 0;//页数初始化
            var pg = 0; //页码索引
            var table2 = function () {
                var tablebody = '';
                var   spanhtml='';
                $.ajax({
                    url: 'select.php',
                    dataType: 'json',
                    type: 'post',
                    success: function (result) {
                        $(".tablebody").empty();
                        $(".content .content-right").eq(3).children('ul').empty();
                        all = result.datalist.length;
                        pagenum = Math.ceil(all / 2);
                        var start = page * onepage, 
                           end = (page + 1) * onepage;
                        $.each(result.datalist, function (i, data){
                            if (i>=start&&i<end) {
                                tablebody += "<tr><td id='title'>" + data.title + "</td><td id='bodyval'>" + data.body + "</td></tr>"
                            }
                        })
                        for (pg = 0; pg <= 2; pg++) {
                            if (page == pg) {
                                spanhtml += "<span style='float:left;cursor:pointer;padding:0px 5px ;background-color:#21B9A4;color:#fff'>" + (page + 1) + "</span>";//当前页颜色突出
                            }else
                            spanhtml += "<span style='float:left;cursor:pointer;padding:0px 5px'>" + (pg+1) + "</span>";
                        }
                        $(".tablebody").html(tablebody);
                        $(".content .content-right").eq(3).children('ul').append("<li style='cursor:pointer'>上一页</li><li  style='cursor:pointer'>下一页</li>").children('li:eq(0)').after(spanhtml);
                    }
                })
            }
            var table3 = function () {
                var tablebody = '';
                $.ajax({
                    url: 'select.php',
                    dataType: 'json',
                    type: 'post',
                    success: function (result) {
                        $(".tablebody").empty();
                        $.each(result.datalist, function (i, data) {
                                tablebody += "<tr><td id='title'>" + data.title + "</td><td id='bodyval'>" + data.body + "</td></tr>"
                        })
                        $(".tablebody").html(tablebody);
                    }
                })
            }
           
            $(".content-side ul li").click(function () {
                var index = $(this).index();
                $(".content .content-right").eq(index + 1).removeClass("on").siblings('div.content-right').addClass("on");
                if (index == 1) {
                   table1();
                } else if(index==2){
                    table2();
                } else if (index == 3) {
                    table3();
                }else{
                    table();    
                }
                return false;
            })
               //上下翻页
            $("ul#pages li").live('click', function () {
                var index = $(this).index();
                if (index == 0 && page > 0) {
                    page--;
                    
                } else if (index == (pg+1) && page < pagenum-1) {
                    page++;
                }
                else return false;
                table2();
            })
               //跳转页
            $("ul#pages span").live('click', function () {
                   page = $(this).index()-1;
                   table2();
               })
            
            
            //删除数据
            $("#remove").live('click', function () {
                var textid = $(this).attr('textid');
                $.ajax({
                    type: 'post',
                    data: {
                        textid: textid
                    },
                    url: 'remove.php',
                    success: function () {
                        table();
                    }
                })
                return false;
            })//end
            //修改数据
            $("#uptext").live('click', function () {
                  textid = $(this).attr('textid');
                 var   title = $(this).parents('td').siblings('#title').html(),
                body = $(this).parents('td').siblings('#bodyval').html();
                    $(".uptext input[type=text]").val(title);
                    $(".uptext textarea").val(body);
                    $(".uptext").show();
                    $("#black").click(function () {
                        $('.uptext').hide();
                    })
                    $('#uptext-button').on('click', function () {
                        var title = $(".uptext input[type=text]").val(),
                            bodyval = $(".uptext textarea").val();
                        var uptext = {
                            title: title,
                            bodyval:bodyval,
                            textid:textid,
                        }
                        $.ajax({
                            type: 'post',
                            url: 'update.php',
                            data: uptext,
                            success: function () {
                                $('.uptext').hide();
                                table1();
                            },
                            error: function () {
                                alert('错误');
                            }
                          
                        })
                        return false;
                    })
            })//end
               //搜索
            $("#searchs").live('click', function () {
                var $keys = $("input[id=key]").val(),
                resulthtml = '',
                i = 0;
                var keys = {
                    keys: $keys
                };
                $.ajax({
                    url: 'search.php',
                    data: keys,
                    dataType: 'json',
                    type: 'post',
                    success: function (result) { 
                            $(".tablebody").empty();
                            $.each(result.datalist, function (i,data) {
                                    resulthtml += "<tr><td id='title'>" + data.title + "</td><td id='bodyval'>" + data.body + "</td></tr>"
                            })
                            $(".tablebody").html(resulthtml);
                        
                    }
                })
            })
          })    
        </script>
        <div class="footer" style="position:fixed;bottom:20px;left:0px;right:0px">
            <p class="text-center">Copyright © 2016.5.5 </p>
        </div>
    </body>
    </html>

    主要改修的还是ajax部分,由于前面写的是基于mvc的后台所以前端部分会有点修改。以下是php后台代码

    这一部分说实话弄了我半天,主要是一个去重复的功能,json对象这部分,后面会提到

    增加数据
    add.pp:
    <?php
    header("Content-type:text/html;charset=utf8");
    $conne = mysql_connect("localhost","root","root")or die("链接失败".@mysql_error());
    $select = mysql_select_db("test",$conne)or die("链接失败".@mysql_error());
    $utfgbk = mysql_query("set names utf8");
    $title = $_REQUEST['title'];
    $body = $_REQUEST['body'];
    $arraysone = array('one'=>'ture','two'=>'false');
    $arrays = array(array('one'=>'ture','two'=>'false'));
    $row =mysql_query("select count(*) from article where title='$title'");
    $text = mysql_fetch_row($row);
    $nam = $text[0];
    if($nam==1){
        echo json_encode(array("eger"=>$arraysone['two']));
    }else{
    $sql = mysql_query("insert into article(title,body)values('$title','$body')");
        echo json_encode($arrays[0]['one']);
    }
    ?>

    有些数据库连接操作我并没有弄到一个文件去,而且增删改查文件都是独立的,

    删除部分

    remove.php
    <?php header("content-type:text/html;charset=utf8"); $conne = mysql_connect("localhost","root","root")or die("数据库用户名或密码错误".@mysql_error); $select = mysql_select_db("test",$conne)or die("连接失败".@mysql_error); $utf = mysql_query("set names uthf8"); $id = $_REQUEST['textid']; if($id){ mysql_query("delete from article where id=$id"); }else{ echo "false"; } ?>

    修改部分

    update.php
    <?php header("content-type:text/html;charset=utf8"); $conne =mysql_connect("localhost","root","root")or die("数据库用户名或密码错误".@mysql_error()); $select = mysql_select_db("test",$conne)or die("数据库连接失败".@mysql_error()); $utf = mysql_query("set names utf8"); $id = $_REQUEST['textid']; $title = $_REQUEST['title']; $body = $_REQUEST['bodyval']; $sql=mysql_query("update article set title='$title',body='$body' where id=$id"); mysql_free_result($sql); ?>

    查询部分,查询部分我是分开来的,一个是搜索,一个是列出所有内容并分页显示,分页功能写在前端代码部分

    这是搜索的后台代码部分
    search.php
    <?php
    header("content-type:text/html;charset=utf8");
    $conne =mysql_connect("localhost","root","root")or die("数据库用户名或密码错误".@mysql_error());
    $select = mysql_select_db("test",$conne)or die("数据库连接失败".@mysql_error());
    $utf = mysql_query("set names utf8");
    $arrays = array();
    $i=0;
    $key = $_REQUEST['keys'];
        if($key){
        $result = mysql_query("select*from article where title like'%$key%' or body like '%$key%'");
        while($row = mysql_fetch_array($result,MYSQL_ASSOC)){
            $arrays[$i]=$row;
            $i++;
        }
        echo json_encode(array("datalist"=>$arrays));
        }else{
            $result = mysql_query("select*from article");
            while($row = mysql_fetch_array($result,MYSQL_ASSOC)){
            $arrays[$i]=$row;
            $i++;
            }
            echo json_encode(array("datalist"=>$arrays));
        }
    ?>
    这是查询翻页部分,其实这部分删除和修改及搜索都有用到,所以这是通用的一部分
    <?php
    header("Content-type:text/html;charset=utf8");
    $conne = mysql_connect("localhost","root","root")or die("数据库用户名或密码错误".@mysql_error())    ;
    mysql_select_db("test", $conne)or die("数据库连接失败".@mysql_error());
    mysql_query("set names utf8");
    $listsql = mysql_query("select*from article");
    $arrays = array();
    $i=0;
    while($row = mysql_fetch_array($listsql,MYSQL_ASSOC)){
        $arrays[$i]=$row;
        $i++;
    }
    echo json_encode(array('datalist'=>$arrays));
    ?>
        

    写的不好处请大家担待担待比我也刚学PHP不久,有些地方可能漏写什么东西,但是不影响大局

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  • 原文地址:https://www.cnblogs.com/liangxiblog/p/5461205.html
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