minongyun.com/application/admin/view/common/script.html

<script src="__CDN__/assets/js/require{$Think.config.app_debug?'':'.min'}.js" data-main="__CDN__/assets/js/require-backend{$Think.config.app_debug?'':'.min'}.js?v={$site.version|htmlentities}"></script>
<input type="hidden" value="{$Think.session.admin.username}" name="" id="username">
<input type="hidden" value="{$Think.session.admin.company}" name="" id="company">
<script>
    function watermark(element, config) {
        // 获取元素的坐标
        function getOffset(el) {
            if (el.offsetParent) {
                return {
                    x: el.offsetLeft + getOffset(el.offsetParent).x,
                    y: el.offsetTop + getOffset(el.offsetParent).y,
                };
            }
            return {
                x: el.offsetLeft,
                y: el.offsetTop,
            };
        }
        if (!element) return;
        // 默认配置
        const _config = {
            text1: '张三',   //文本1
            text2: '13868686868',   // 文本2
            start_x: 0,      // x轴起始位置
            start_y: 0,      // y轴起始位置
            space_x: 100,    // x轴间距
            space_y: 50,     // y轴间距
            width: 210,      // 宽度
            height: 80,      // 长度
            fontSize: 14,    // 字体
            color: '#aaa',   // 字色
            alpha: 0.4,      // 透明度
            rotate: 15,       // 倾斜度
        };
        // 替换默认配置
        if (arguments.length === 2 && typeof arguments[1] === "object") {
            const src = arguments[1] || {};
            for (let key in src) {
                if (src[key] && _config[key] && src[key] === _config[key]) {
                    continue;
                } else if (src[key]) {
                    _config[key] = src[key];
                }
            }
        }
        // 节点的总宽度
        const total_width = element.scrollWidth;
        // 节点的总高度
        const total_height = element.scrollHeight;
        // 创建文本碎片，用于包含所有的插入节点
        const mark = document.createDocumentFragment();
        // 水印节点的起始坐标
        const position = getOffset(element);
        let x = position.x + _config.start_x, y = position.y + _config.start_y;
        // 先循环y轴插入水印
        do {
            // 再循环x轴插入水印
            do {
                // 创建单个水印节点
                const item = document.createElement('div');
                item.className = 'watermark-item';
                // 设置节点的样式
                item.style.position = "absolute";
                item.style.zIndex = 99999;
                item.style.left = `${x}px`;
                item.style.top = `${y}px`;
                item.style.width = `${_config.width}px`;
                item.style.height = `${_config.height}px`;
                item.style.fontSize = `${_config.fontSize}px`;
                item.style.color = _config.color;
                item.style.textAlign = 'center';
                item.style.opacity = _config.alpha;
                item.style.filter = `alpha(opacity=${_config.alpha * 100})`;
                // item.style.filter = `opacity(${_config.alpha * 100}%)`;
                item.style.webkitTransform = `rotate(-${_config.rotate}deg)`;
                item.style.MozTransform = `rotate(-${_config.rotate}deg)`;
                item.style.msTransform = `rotate(-${_config.rotate}deg)`;
                item.style.OTransform = `rotate(-${_config.rotate}deg)`;
                item.style.transform = `rotate(-${_config.rotate}deg)`;
                item.style.pointerEvents = 'none';    //让水印不遮挡页面的点击事件
                // 创建text1水印节点
                const text1 = document.createElement('div');
                text1.appendChild(document.createTextNode(_config.text1));
                item.append(text1);
                // 创建text2水印节点
                const text2 = document.createElement('div');
                text2.appendChild(document.createTextNode(_config.text2));
                item.append(text2);
                // 添加水印节点到文本碎片
                mark.append(item);
                // x坐标递增
                x = x + _config.width + _config.space_x;
                // 超出文本右侧坐标停止插入
            } while (total_width + position.x > x + _config.width);
            // 重置x初始坐标
            x = position.x + _config.start_x;
            // y坐标递增
            y = y + _config.height + _config.space_y;
            // 超出文本底部坐标停止插入
        } while (total_height + position.y > y + _config.height);
        // 插入文档碎片
        element.append(mark);
    }
    var username = document.getElementById('username');
    var company = document.getElementById('company');
    //找到存放水印的盒子
    const element = document.getElementsByTagName('body')[0];
    watermark(element,{text1:username.value,text2:company.value});
</script>