本文实例为大家分享了jQuery+ajax实现用户登录验证的具体代码,供大家参考,具体内容如下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | <!DOCTYPE html> < html > < head > < meta charset = "utf-8" > < title >登录界面</ title > < style type = "text/css" > *{ margin: 0; padding: 0; } h3{ display: block; width: 100%; height: 50px; text-align: center; line-height: 50px; background-color: cornflowerblue; cursor: move; } #login{ width: 500px; height: 270px; margin: 0 auto; position: absolute; top: 50%; left: 50%; margin-left: -250px; margin-top: -140px; border: 1px solid #6495ED; background-color: #FFFFFF; display: block; -moz-user-select: none; -ms-user-select: none; -webkit-user-select: none; } table{ margin-top: 50px; position: absolute; top: 50px; left: 0; width: 100%; height: 150px; text-align:center; } tr,td{ border: none; } tr{ height: 50px; } td{ padding: 0 5px 0 5px; } #bg{ width: 100%; height: 100%; background-color:rgba(0,0,0,0.2); position: absolute; top: 0; left: 0; } span{ width: 100px; height: 16px; display:block; margin-bottom: 12px; } body{ width: 100%; height: 100%; } .inpt{ width: 300px; height: 30px; outline: none; border: 1px solid darkturquoise; } .red{ color: red; font-size: 12px; } .btn{ outline: none; width: 60px; height: 25px; border: 1px solid #00CED1; } </ style > < script src = "js/jquery-3.5.1.min.js" type = "text/javascript" charset = "utf-8" ></ script > < script type = "text/javascript" > $(function () { // 定义变量 var $mX; var $mY; var $move = false; // true是可以移动登录框 // 鼠标按下事件 $("h3").mousedown(function (event) { $("#login").css("opacity",0.5); // 改变透明度 $move = true; // 得到鼠标与登录框原点之间的距离 $mX = event.pageX-parseInt($("#login").css("left")); $mY = event.pageY-parseInt($("#login").css("top")); }) // 鼠标移动事件 $(document).mousemove(function (event) { // 得到登录框要移动的量 var x = (event.pageX-$mX); var y = (event.pageY-$mY); console.log(x,y) if($move){ if(x>0&&y>0){ $("#login").css("left",x+"px") $("#login").css("top",y+"px") } } }).mouseup(function () { // 鼠标弹起事件 $move = false; $("#login").css("opacity",1); }) // 异步请求 $(":submit").click(function () { $.ajax({ type:"get", url:"data.php", data:{"name":$("#user").val(),"password":$("#pwd").val()}, dataType:"json", success:function (data) { console.log("成功:",data); /*if (data.usermsg==1&&data.pwdmsg==1) { $(location).prop("href","index1.html"); } else{ $("span").text("用户名或密码错误").prop("class","red"); }*/ if (data.usermsg==1&&data.pwdmsg==1) { $(location).prop("href","index1.html"); } else if(data.usermsg==0&&data.pwdmsg==0){ $("span").text("用户名或密码错误").prop("class","red"); } else if(data.usermsg==0&&data.pwdmsg==1){ $("span").text("该用户不存在").prop("class","red"); } else if(data.usermsg==1&&data.pwdmsg==0){ $("span").text("密码错误").prop("class","red"); } }, error:function (err) { console.log("失败",err); } }) }) $(":reset").click(function () { $("span").text(""); }) }) </ script > </ head > < body > < div id = "bg" ></ div > < form action = "javascript:;" id = "login" method = "get" > < h3 >欢迎登录!</ h3 > < table border = "0" cellspacing = "0" cellpadding = "0" > < tr > < td align = "right" >用户名:</ td > < td align = "left" >< input type = "text" class = "inpt" id = "user" name = "userName" /></ td > </ tr > < tr > < td align = "right" >密   码:</ td > < td align = "left" >< input type = "password" class = "inpt" id = "pwd" name = "pwd" /></ td > </ tr > < tr > < td align = "center" colspan = "2" > < span ></ span > < input type = "submit" class = "btn" value = "提交" />       < input type = "reset" class = "btn" value = "重置" /> </ td > </ tr > </ table > </ form > </ body > </ html > |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | <?php $user = "将军" ; $password = "1234321" ; $username = $_GET [ "name" ]; $pwd = $_GET [ "password" ]; $usermsg =0; $pwdmsg =0; if ( $user == $username ){ $usermsg =1; } if ( $password == $pwd ){ $pwdmsg =1; } echo json_encode( array ( "usermsg" => $usermsg , "pwdmsg" => $pwdmsg )); ?> |
1 2 3 4 5 6 7 8 9 10 11 12 | <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title >登录成功页面</ title > </ head > < body > < span id = "" style = "font-size: 60px;color: #008000;" > 登录成功 </ span > </ body > </ html > |
1 2 3 4 5 6 7 8 9 10 11 12 | <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title >登录失败页面</ title > </ head > < body > < span id = "" style = "font-size: 60px;color: #FF0000;" > 登录失败 </ span > </ body > </ html > |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持自学编程网。
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