打印DIV的内容

打印DIV内容的最佳方法是什么?

当前回答

我认为有更好的解决办法。让你的div打印覆盖整个文档，但只在打印时:

@media print {
    .myDivToPrint {
        background-color: white;
        height: 100%;
        width: 100%;
        position: fixed;
        top: 0;
        left: 0;
        margin: 0;
        padding: 15px;
        font-size: 14px;
        line-height: 18px;
    }
}

2011-08-23 20:54:07

其他回答

function printDomElement(element) {
    element.classList.add("printCss");

    let printId = "printId";
    let name = ".printCss";
    let rules = "-webkit-print-color-adjust:exact;height:100%;width:100%;position:fixed;top:0;left:0;margin:0;";

    var style = document.createElement('style');
    style.id = printId;
    style.media = "print";
    document.getElementsByTagName('head')[0].appendChild(style);

    if (!(style.sheet || {}).insertRule)(style.styleSheet || style.sheet).addRule(name, rules);
    else style.sheet.insertRule(name + "{" + rules + "}", 0);

    window.print();

    setTimeout(() => {
      element.classList.remove("printCss");
      let elem = document.getElementById(printId);
      if (elem) elem.remove();
    }, 500);

  }

2022-08-17 04:11:12

最好的方法是将div的内容提交给服务器，并打开一个新窗口，服务器可以将这些内容放入新窗口中。

如果这不是一个选项，你可以尝试使用客户端语言，如javascript隐藏页面上的所有内容，除了div，然后打印页面…

2010-02-12 21:45:48

与最佳答案相同，以防你需要像我一样打印图像:

如果你想打印图像:

function printElem(elem)
    {
        Popup(jQuery(elem).attr('src'));
    }

    function Popup(data) 
    {
        var mywindow = window.open('', 'my div', 'height=400,width=600');
        mywindow.document.write('<html><head><title>my div</title>');
        mywindow.document.write('</head><body >');
        mywindow.document.write('<img src="'+data+'" />');
        mywindow.document.write('</body></html>');

        mywindow.print();
        mywindow.close();

        return true;
    }

2013-10-17 19:38:26

下面的代码复制了查询选择器目标的所有相关节点，复制了它们在屏幕上看到的样式，因为许多用于css选择器目标的父元素将会丢失。如果有很多带有很多样式的子节点，这将导致一些延迟。

理想情况下，你应该有一个打印样式表，但这是为用例，没有打印样式表插入，你希望打印在屏幕上看到。

如果您在此页的浏览器控制台中复制以下项目，它将打印此页上的所有代码片段。

+function() {
    /**
     * copied from  https://stackoverflow.com/questions/19784064/set-javascript-computed-style-from-one-element-to-another
     * @author Adi Darachi https://stackoverflow.com/users/2318881/adi-darachi
     */
    var copyComputedStyle = function(from,to){
        var computed_style_object = false;
        //trying to figure out which style object we need to use depense on the browser support
        //so we try until we have one
        computed_style_object = from.currentStyle || document.defaultView.getComputedStyle(from,null);

        //if the browser dose not support both methods we will return null
        if(!computed_style_object) return null;

            var stylePropertyValid = function(name,value){
                        //checking that the value is not a undefined
                return typeof value !== 'undefined' &&
                        //checking that the value is not a object
                        typeof value !== 'object' &&
                        //checking that the value is not a function
                        typeof value !== 'function' &&
                        //checking that we dosent have empty string
                        value.length > 0 &&
                        //checking that the property is not int index ( happens on some browser
                        value != parseInt(value)

            };

        //we iterating the computed style object and compy the style props and the values
        for(property in computed_style_object)
        {
            //checking if the property and value we get are valid sinse browser have different implementations
                if(stylePropertyValid(property,computed_style_object[property]))
                {
                    //applying the style property to the target element
                        to.style[property] = computed_style_object[property];

                }   
        }   

    };


    // Copy over all relevant styles to preserve styling, work the way down the children tree.
    var buildChild = function(masterList, childList) {
        for(c=0; c<masterList.length; c++) {
           var master = masterList[c];
           var child = childList[c];
           copyComputedStyle(master, child);
           if(master.children && master.children.length > 0) {
               buildChild(master.children, child.children);
           }
        }
    }

    /** select elements to print with query selector **/
    var printSelection = function(querySelector) {
        // Create an iframe to make sure everything is clean and ordered.
        var iframe = document.createElement('iframe');
        // Give it enough dimension so you can visually check when modifying.
        iframe.width = document.width;
        iframe.height = document.height;
        // Add it to the current document to be sure it has the internal objects set up.
        document.body.append(iframe);

        var nodes = document.querySelectorAll(querySelector);
        if(!nodes || nodes.length == 0) {
           console.error('Printing Faillure: Nothing to print. Please check your querySelector');
           return;
        }

        for(i=0; i < nodes.length; i++) {

            // Get the node you wish to print.
            var origNode = nodes[i];

            // Clone it and all it's children
            var node = origNode.cloneNode(true);

            // Copy the base style.
            copyComputedStyle(origNode, node);

            if(origNode.children && origNode.children.length > 0) {
                buildChild(origNode.children, node.children);
            }

            // Add the styled clone to the iframe. using contentWindow.document since it seems the be the most widely supported version.

            iframe.contentWindow.document.body.append(node);
        }
        // Print the window
        iframe.contentWindow.print();

        // Give the browser a second to gather the data then remove the iframe.
        window.setTimeout(function() {iframe.parentNode.removeChild(iframe)}, 1000);
    }
window.printSelection = printSelection;
}();
printSelection('.default.prettyprint.prettyprinted')

2018-08-01 12:13:19

注意:从下面提到的插件编写到现在已经有13年了，就像评论中提到的那样。它不再工作，因为改变了API在jQuery。随意分叉和添加一个拉请求!

虽然这是@gabe说的，如果你正在使用jQuery，你可以使用我的printElement插件。

这里有一个示例，以及关于插件的更多信息。

使用方法相当简单，只需用jQuery选择器抓取一个元素并打印它:

$("#myDiv").printElement();

我希望这能有所帮助!

2010-09-26 14:57:54

打印DIV的内容

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