Java开发环境中使用CKEditor集成

本文主要介绍如何将CKEditor集成到Java开发环境中，CKEditor是FCKEditor的升级版，使用很方便。下面是基本使用方法：第一步：下载必要的库 1、到CKEditor官网http://www.fckeditor.net/download/下载Ckeditor4.0.2，这是目前最新的版本，4.1马上就出来了。 2、找到CKEditor 3.6.4 for Java，download.jar按钮，下载ckeditor-java-core-3.5.3.zip，这是java集成的jar包，可以用来配置CKEditor，其中还有Ckeditor的标签，比较重要。第二步：将ckeditor-java-core-3.5.3.jar及Ckeditor库放到工程相应目录下，jar包放到lib下，库文件(js等资源文件)放到存放页面资源的目录下，根据自己的情况 3、在需要使用编辑器的jsp页面中加入CKeditor标签库，这样可以使用<ckeditor>标签

<%@ taglib uri="http://ckeditor.com" prefix="ckeditor" %>

4、如果让CKeditor自动创建实例，则只需在</body>标签之前添加一个<ckeditor:replace>（官方推荐这样做，在其他地方添加也可以）

<!DOCTYPE unspecified PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="http://ckeditor.com" prefix="ckeditor" %>
<html>
    <body>
        <form action="sample_posteddata.jsp" method="get">
            <p>
                <label for="editor1">Editor 1:</label>
                <textarea cols="80" id="editor1" name="editor1" rows="10"></textarea>
            </p>
            <p>
                <input type="submit" value="Submit" />
            </p>
        </form>
    <ckeditor:replace replace="editor1" basePath="/ckeditor/" />
    </body>  
</html>

注意：<ckeditor:replace>中replace对应的是要替换的<textarea>标签的id，basePath对应的是CKeditor资源文件的存放路径。如果需要替换多个<textarea>，则可以使用 <ckeditor:replaceAll>标签，

1	`<ckeditor:replaceAll` `basePath="/ckeditor/"` `className="myclass"/>`

其中className是<textarea>的class样式，只要<textarea>的class样式为myclass，则都会被CKeditor实例替换。 5、如果想手动创建CKeditor实例，则可以通过<ckeditor:editor>标签创建。

1	`<ckeditor:editor` `textareaAttributes="<%=attr %>" basePath="/ckeditor/" editor="editor1" value="Type here" />`

其中basePath是CKeditor存放目录，editor是全局<textarea>元素的name，value则是该<textarea>的默认值，textareaAttributes则对应<textarea>的配置信息，是一个java.util.HashMap类型的对象，key对应的是<textarea>中的属性名称name,value对应<textarea>中的属性值value。

<%
    Map<String, String> attr = new HashMap<String, String>();
    attr.put("rows", "8");
    attr.put("cols", "50");
%>

6、提交编辑内容后台获取编辑内容和平时使用<textarea>没区别，CKEditor只是对<textarea>进行了增强，所以数据获取仍然是通过<textarea>的name属性。如果想在js中获取CKEditor实例中的内容，则可以通过CKEditor API获取，

1	`var` `data = CKEDITOR.instances.editor1.getData();`

基本流程就是这样，如果想修改CKeditor样式的话，可以修改CKeditor资源文件中的config.js，

/*
Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
 
CKEDITOR.editorConfig = function( config )
{
    // Define changes to default configuration here. For example:
    // config.language = 'fr';
    // config.uiColor = '#AADC6E';
    config.language = 'zh-cn'; // 配置语言
    config.uiColor = '#FFF'; // 背景颜色
    config.width = 'auto'; // 宽度
    config.height = '300px'; // 高度
    config.skin = 'office2003';// 界面v2,kama,office2003
    config.toolbar = 'MyToolbar';// 工具栏风格（基础'Basic'、全能'Full'、自定义）plugins/toolbar/plugin.js
    config.toolbarCanCollapse = false;// 工具栏是否可以被收缩
    config.resize_enabled = false;// 取消 “拖拽以改变尺寸”功能 plugins/resize/plugin.js
    
    //自定义的工具栏   
    config.toolbar_MyToolbar =
    [
        ['Source','-','Save','Preview','Print'],
        ['Cut','Copy','Paste','PasteText','PasteFromWord','-','Scayt'],
        ['Undo','Redo','-','Find','Replace','-','SelectAll','RemoveFormat'],
        ['Image','Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak'],
        '/',
        ['Styles','Format'],
        ['Bold','Italic','Strike'],
        ['NumberedList','BulletedList','-','Outdent','Indent','Blockquote'],
        ['Link','Unlink','Anchor'],
        ['Maximize','-','About']
    ];
};

也可以直接在jsp里设置：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="com.ckeditor.CKEditorConfig"%>
<%@ taglib uri="http://ckeditor.com" prefix="ckeditor" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>新闻中心</title>
</head>
<body>
<center>
<form action="${pageContext.request.contextPath}/news/add">
标题:<input name="title" type="text"/><p/>
内容:<textarea name="content" id="editor" rows="5" cols="20"></textarea>
<label>公告</label>:<input type="radio" name="ntype" value="1"/>
<label>新闻</label>:<input type="radio" name="ntype" value="2"/>
<input type="submit" value="添加">
</form>
</center>
<%
    CKEditorConfig settings = new CKEditorConfig();
    settings.addConfigValue("height","300");
    settings.addConfigValue("width","600");
%>
<ckeditor:replace replace="editor" basePath="${pageContext.request.contextPath}/ckeditor/" config="<%=settings %>"/>
</body>
</html>

想进一步了解的话，可以参考CKEditor官网的指导说 config.toolbar = 'Full'; config.toolbar_Full = [ ['Source','-','Save','NewPage','Preview','-','Templates'], ['Cut','Copy','Paste','PasteText','PasteFromWord','-','Print', 'SpellChecker', 'Scayt'], ['Undo','Redo','-','Find','Replace','-','SelectAll','RemoveFormat'], ['Form', 'Checkbox', 'Radio', 'TextField', 'Textarea', 'Select', 'Button', 'ImageButton', 'HiddenField'], ['BidiLtr', 'BidiRtl'], '/', ['Bold','Italic','Underline','Strike','-','Subscript','Superscript'], ['NumberedList','BulletedList','-','Outdent','Indent','Blockquote','CreateDiv'], ['JustifyLeft','JustifyCenter','JustifyRight','JustifyBlock'], ['Link','Unlink','Anchor'], ['Image','Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak'], '/', ['Styles','Format','Font','FontSize'], ['TextColor','BGColor'], ['Maximize', 'ShowBlocks','-','About'] ]; config.toolbar_Basic = [ ['Bold', 'Italic', '-', 'NumberedList', 'BulletedList', '-', 'Link', 'Unlink','-','About'] ];

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