百度富文本Ueditor会追加标签的问题

我们在使用ueditor回写文本有时会出现本该是标签，却直接变成了文本写入到了输入框，并且每一次提交都会追加一个标签

这是因为你保存于数据库的文本标签是经过转义的，如：<p>       &nbsp；，

这些转义字符在经过 ueditor.all.js 的 setContent 转换成标签的时候会直接变成文本回写到输入框中，而每一次回写setContent 都会自动给你添加一个p标签，此时我们

要提前转义成标签，让ueditor在回写的时候就认为这是一个标签，而不是转义成文本回写到输入框，当你有标签返回的时候ueditor就不会再添加p标签

setContent: function (html, isAppendTo, notFireSelectionchange) {
            html = strDiscode(html);　　　　　　　　　　　　　　//转义传入的文本
            var me = this;

            me.fireEvent('beforesetcontent', html);
            var root = UE.htmlparser(html);　　　　　　　　　　//此处将html文本转换成uNode节点，若未转义则会变成文本直接写入输入框
            me.filterInputRule(root);

            html = root.toHtml();　　　　　　　　　　　　　　　　//此处转义节点内的文本内容

            me.body.innerHTML = (isAppendTo ? me.body.innerHTML : '') + html;


            function isCdataDiv(node){
                return  node.tagName == 'DIV' && node.getAttribute('cdata_tag');
            }
            //给文本或者inline节点套p标签
            if (me.options.enterTag == 'p') {

                var child = this.body.firstChild, tmpNode;
                if (!child || child.nodeType == 1 &&
                    (dtd.$cdata[child.tagName] || isCdataDiv(child) ||
                        domUtils.isCustomeNode(child)
                        )
                    && child === this.body.lastChild) {
                    this.body.innerHTML = '<p>' + (browser.ie ? '&nbsp;' : '<br/>') + '</p>' + this.body.innerHTML;

                } else {
                    var p = me.document.createElement('p');
                    while (child) {
                        while (child && (child.nodeType == 3 || child.nodeType == 1 && dtd.p[child.tagName] && !dtd.$cdata[child.tagName])) {
                            tmpNode = child.nextSibling;
                            p.appendChild(child);
                            child = tmpNode;
                        }
                        if (p.firstChild) {
                            if (!child) {
                                me.body.appendChild(p);
                                break;
                            } else {
                                child.parentNode.insertBefore(p, child);
                                p = me.document.createElement('p');
                            }
                        }
                        child = child.nextSibling;
                    }
                }
            }
            me.fireEvent('aftersetcontent');
            me.fireEvent('contentchange');

            !notFireSelectionchange && me._selectionChange();
            //清除保存的选区
            me._bakRange = me._bakIERange = me._bakNativeRange = null;
            //trace:1742 setContent后gecko能得到焦点问题
            var geckoSel;
            if (browser.gecko && (geckoSel = this.selection.getNative())) {
                geckoSel.removeAllRanges();
            }
            if(me.options.autoSyncData){
                me.form && setValue(me.form,me);
            }
        },

转义方法

// HTML 支持的数学符号
    function strNumDiscode(str) {
        str = str.replace(/∀/g, '∀');
        str = str.replace(/∂/g, '∂');
        str = str.replace(/&exists;/g, '∃');
        str = str.replace(/∅/g, '∅');
        str = str.replace(/∇/g, '∇');
        str = str.replace(/∈/g, '∈');
        str = str.replace(/∉/g, '∉');
        str = str.replace(/∋/g, '∋');
        str = str.replace(/∏/g, '∏');
        str = str.replace(/∑/g, '∑');
        str = str.replace(/−/g, '−');
        str = str.replace(/∗/g, '∗');
        str = str.replace(/√/g, '√');
        str = str.replace(/∝/g, '∝');
        str = str.replace(/∞/g, '∞');
        str = str.replace(/∠/g, '∠');
        str = str.replace(/∧/g, '∧');
        str = str.replace(/∨/g, '∨');
        str = str.replace(/∩/g, '∩');
        str = str.replace(/∩/g, '∪');
        str = str.replace(/∫/g, '∫');
        str = str.replace(/∴/g, '∴');
        str = str.replace(/∼/g, '∼');
        str = str.replace(/≅/g, '≅');
        str = str.replace(/≈/g, '≈');
        str = str.replace(/≠/g, '≠');
        str = str.replace(/≤/g, '≤');
        str = str.replace(/≥/g, '≥');
        str = str.replace(/⊂/g, '⊂');
        str = str.replace(/⊃/g, '⊃');
        str = str.replace(/⊄/g, '⊄');
        str = str.replace(/⊆/g, '⊆');
        str = str.replace(/⊇/g, '⊇');
        str = str.replace(/⊕/g, '⊕');
        str = str.replace(/⊗/g, '⊗');
        str = str.replace(/⊥/g, '⊥');
        str = str.replace(/⋅/g, '⋅');
        return str;
    }

//HTML 支持的希腊字母
    function strGreeceDiscode(str) {
        str = str.replace(/Α/g, 'Α');
        str = str.replace(/Β/g, 'Β');
        str = str.replace(/Γ/g, 'Γ');
        str = str.replace(/Δ/g, 'Δ');
        str = str.replace(/Ε/g, 'Ε');
        str = str.replace(/Ζ/g, 'Ζ');
        str = str.replace(/Η/g, 'Η');
        str = str.replace(/Θ/g, 'Θ');
        str = str.replace(/Ι/g, 'Ι');
        str = str.replace(/Κ/g, 'Κ');
        str = str.replace(/Λ/g, 'Λ');
        str = str.replace(/Μ/g, 'Μ');
        str = str.replace(/Ν/g, 'Ν');
        str = str.replace(/Ξ/g, 'Ν');
        str = str.replace(/Ο/g, 'Ο');
        str = str.replace(/Π/g, 'Π');
        str = str.replace(/Ρ/g, 'Ρ');
        str = str.replace(/Σ/g, 'Σ');
        str = str.replace(/Τ/g, 'Τ');
        str = str.replace(/Υ/g, 'Υ');
        str = str.replace(/Φ/g, 'Φ');
        str = str.replace(/Χ/g, 'Χ');
        str = str.replace(/Ψ/g, 'Ψ');
        str = str.replace(/Ω/g, 'Ω');

        str = str.replace(/α/g, 'α');
        str = str.replace(/β/g, 'β');
        str = str.replace(/γ/g, 'γ');
        str = str.replace(/δ/g, 'δ');
        str = str.replace(/ε/g, 'ε');
        str = str.replace(/ζ/g, 'ζ');
        str = str.replace(/η/g, 'η');
        str = str.replace(/θ/g, 'θ');
        str = str.replace(/ι/g, 'ι');
        str = str.replace(/κ/g, 'κ');
        str = str.replace(/λ/g, 'λ');
        str = str.replace(/μ/g, 'μ');
        str = str.replace(/ν/g, 'ν');
        str = str.replace(/ξ/g, 'ξ');
        str = str.replace(/ο/g, 'ο');
        str = str.replace(/π/g, 'π');
        str = str.replace(/ρ/g, 'ρ');
        str = str.replace(/ς/g, 'ς');
        str = str.replace(/σ/g, 'σ');
        str = str.replace(/τ/g, 'τ');
        str = str.replace(/υ/g, 'υ');
        str = str.replace(/φ/g, 'φ');
        str = str.replace(/χ/g, 'χ');
        str = str.replace(/ψ/g, 'ψ');
        str = str.replace(/ω/g, 'ω');
        str = str.replace(/ϑ/g, 'ϑ');
        str = str.replace(/ϒ/g, 'ϒ');
        str = str.replace(/ϖ/g, 'ϖ');
        str = str.replace(/·/g, '·');
        return str;
    }

//

    function strcharacterDiscode(str) {
        // 加入常用解析
        str = str.replace(/ /g, ' ');
        str = str.replace(/"/g, "'");
        str = str.replace(/&/g, '&');
        // str = str.replace(/</g, '‹');
        // str = str.replace(/>/g, '›');

        str = str.replace(/&lt;/g, '<');
        str = str.replace(/&gt;/g, '>');
        str = str.replace(/&#8226;/g, '•');

        return str;
    }

// HTML 支持的其他实体
    function strOtherDiscode(str) {
        str = str.replace(/&OElig;/g, 'Œ');
        str = str.replace(/&oelig;/g, 'œ');
        str = str.replace(/&Scaron;/g, 'Š');
        str = str.replace(/&scaron;/g, 'š');
        str = str.replace(/&Yuml;/g, 'Ÿ');
        str = str.replace(/&fnof;/g, 'ƒ');
        str = str.replace(/&circ;/g, 'ˆ');
        str = str.replace(/&tilde;/g, '˜');
        str = str.replace(/&ensp;/g, '');
        str = str.replace(/&emsp;/g, '');
        str = str.replace(/&thinsp;/g, '');
        str = str.replace(/&zwnj;/g, '');
        str = str.replace(/&zwj;/g, '');
        str = str.replace(/&lrm;/g, '');
        str = str.replace(/&rlm;/g, '');
        str = str.replace(/&ndash;/g, '–');
        str = str.replace(/&mdash;/g, '—');
        str = str.replace(/&lsquo;/g, '‘');
        str = str.replace(/&rsquo;/g, '’');
        str = str.replace(/&sbquo;/g, '‚');
        str = str.replace(/&ldquo;/g, '“');
        str = str.replace(/&rdquo;/g, '”');
        str = str.replace(/&bdquo;/g, '„');
        str = str.replace(/&dagger;/g, '†');
        str = str.replace(/&Dagger;/g, '‡');
        str = str.replace(/&bull;/g, '•');
        str = str.replace(/&hellip;/g, '…');
        str = str.replace(/&permil;/g, '‰');
        str = str.replace(/&prime;/g, '′');
        str = str.replace(/&Prime;/g, '″');
        str = str.replace(/&lsaquo;/g, '‹');
        str = str.replace(/&rsaquo;/g, '›');
        str = str.replace(/&oline;/g, '‾');
        str = str.replace(/&euro;/g, '€');
        str = str.replace(/&trade;/g, '™');

        str = str.replace(/&larr;/g, '←');
        str = str.replace(/&uarr;/g, '↑');
        str = str.replace(/&rarr;/g, '→');
        str = str.replace(/&darr;/g, '↓');
        str = str.replace(/&harr;/g, '↔');
        str = str.replace(/&crarr;/g, '↵');
        str = str.replace(/&lceil;/g, '⌈');
        str = str.replace(/&rceil;/g, '⌉');

        str = str.replace(/&lfloor;/g, '⌊');
        str = str.replace(/&rfloor;/g, '⌋');
        str = str.replace(/&loz;/g, '◊');
        str = str.replace(/&spades;/g, '♠');
        str = str.replace(/&clubs;/g, '♣');
        str = str.replace(/&hearts;/g, '♥');

        str = str.replace(/&diams;/g, '♦');
        str = str.replace(/&#39;/g, '\'');
        str = str.replace(/&nbsp;/g, ' ');
        str = str.replace(/&amp;nbsp;/g, ' ');
        return str;
    }

    function strMoreDiscode(str) {
        str = str.replace(/\r\n/g, "");
        str = str.replace(/\n/g, "");

        str = str.replace(/code/g, "wxxxcode-style");
        return str;
    }

    function strDiscode(str) {
        str = strNumDiscode(str);
        str = strGreeceDiscode(str);
        str = strcharacterDiscode(str);
        str = strOtherDiscode(str);
        str = strMoreDiscode(str);
        return str;
    }
    function urlToHttpUrl(url, rep) {

        var patt1 = new RegExp("^//");
        var result = patt1.test(url);
        if (result) {
            url = rep + ":" + url;
        }
        return url;
    }