解决bug

2019-03-31 23:26:15 +08:00
parent d73781d846
commit 0810476005
22 changed files with 696 additions and 137 deletions
--- a/erp_web/js/gVerify.js
+++ b/erp_web/js/gVerify.js
@@ -0,0 +1,138 @@
+!(function(window, document) {
+    var size = 4;//设置验证码长度
+    function GVerify(options) { //创建一个图形验证码对象，接收options对象为参数
+        this.options = { //默认options参数值
+            id: "", //容器Id
+            canvasId: "verifyCanvas", //canvas的ID
+            width: "100", //默认canvas宽度
+            height: "30", //默认canvas高度
+            type: "letter", //图形验证码默认类型blend:数字字母混合类型、number:纯数字、letter:纯字母
+            code: "",
+        }
+        if(Object.prototype.toString.call(options) == "[object Object]"){//判断传入参数类型
+            for(var i in options) { //根据传入的参数，修改默认参数值
+                this.options[i] = options[i];
+            }
+        }else{
+            this.options.id = options;
+        }
+
+        this.options.numArr = "0,1,2,3,4,5,6,7,8,9".split(",");
+        this.options.letterArr = getAllLetter();
+
+        this._init();
+        this.refresh();
+    }
+
+    GVerify.prototype = {
+        /**版本号**/
+        version: '1.0.0',
+
+        /**初始化方法**/
+        _init: function() {
+            var con = document.getElementById(this.options.id);
+            var canvas = document.createElement("canvas");
+            this.options.width = con.offsetWidth > 0 ? con.offsetWidth : "100";
+            this.options.height = con.offsetHeight > 0 ? con.offsetHeight : "30";
+            canvas.id = this.options.canvasId;
+            canvas.width = this.options.width;
+            canvas.height = this.options.height;
+            canvas.style.cursor = "pointer";
+            canvas.innerHTML = "您的浏览器版本不支持canvas";
+            con.appendChild(canvas);
+            var parent = this;
+            canvas.onclick = function(){
+                parent.refresh();
+            }
+        },
+
+        /**生成验证码**/
+        refresh: function() {
+            this.options.code = "";
+            var canvas = document.getElementById(this.options.canvasId);
+            if(canvas.getContext) {
+                var ctx = canvas.getContext('2d');
+            }else{
+                return;
+            }
+
+            ctx.textBaseline = "middle";
+
+            ctx.fillStyle = randomColor(180, 240);
+            ctx.fillRect(0, 0, this.options.width, this.options.height);
+
+            if(this.options.type == "blend") { //判断验证码类型
+                var txtArr = this.options.numArr.concat(this.options.letterArr);
+            } else if(this.options.type == "number") {
+                var txtArr = this.options.numArr;
+            } else {
+                var txtArr = this.options.letterArr;
+            }
+
+            for(var i = 1; i <=size; i++) {
+                var txt = txtArr[randomNum(0, txtArr.length)];
+                this.options.code += txt;
+                ctx.font = randomNum(this.options.height/2, this.options.height) + 'px SimHei'; //随机生成字体大小
+                ctx.fillStyle = randomColor(50, 160); //随机生成字体颜色
+                ctx.shadowOffsetX = randomNum(-3, 3);
+                ctx.shadowOffsetY = randomNum(-3, 3);
+                ctx.shadowBlur = randomNum(-3, 3);
+                ctx.shadowColor = "rgba(0, 0, 0, 0.3)";
+                var x = this.options.width / (size+1) * i;
+                var y = this.options.height / 2;
+                var deg = randomNum(-30, 30);
+                /**设置旋转角度和坐标原点**/
+                ctx.translate(x, y);
+                ctx.rotate(deg * Math.PI / 180);
+                ctx.fillText(txt, 0, 0);
+                /**恢复旋转角度和坐标原点**/
+                ctx.rotate(-deg * Math.PI / 180);
+                ctx.translate(-x, -y);
+            }
+            /**绘制干扰线**/
+            for(var i = 0; i < 4; i++) {
+                ctx.strokeStyle = randomColor(40, 180);
+                ctx.beginPath();
+                ctx.moveTo(randomNum(0, this.options.width), randomNum(0, this.options.height));
+                ctx.lineTo(randomNum(0, this.options.width), randomNum(0, this.options.height));
+                ctx.stroke();
+            }
+            /**绘制干扰点**/
+            for(var i = 0; i < this.options.width/4; i++) {
+                ctx.fillStyle = randomColor(0, 255);
+                ctx.beginPath();
+                ctx.arc(randomNum(0, this.options.width), randomNum(0, this.options.height), 1, 0, 2 * Math.PI);
+                ctx.fill();
+            }
+        },
+
+        /**验证验证码**/
+        validate: function(code){
+            var code = code.toLowerCase();
+            var v_code = this.options.code.toLowerCase();
+            if(code == v_code){
+                return true;
+            }else{
+                this.refresh();
+                return false;
+            }
+        }
+    }
+    /**生成字母数组**/
+    function getAllLetter() {
+        var letterStr = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z";
+        return letterStr.split(",");
+    }
+    /**生成一个随机数**/
+    function randomNum(min, max) {
+        return Math.floor(Math.random() * (max - min) + min);
+    }
+    /**生成一个随机色**/
+    function randomColor(min, max) {
+        var r = randomNum(min, max);
+        var g = randomNum(min, max);
+        var b = randomNum(min, max);
+        return "rgb(" + r + "," + g + "," + b + ")";
+    }
+    window.GVerify = GVerify;
+})(window, document);