java+ jsp+js 实现富文本编辑和上传图片功能

• 使用kindeditor富文本插件：
  - kindeditor富文本官网地址
  详细的文档和demo都有

• 下面是实现步骤：
  -导入项目中相关的文件
  

jsp中的引入相关的css js文件

<!---引入kindeditor的样式文件-->    <link rel="stylesheet" href="../kindeditor/plugins/code/prettify.css" />    <link rel="stylesheet" href="../kindeditor/themes/default/default.css" /> <%--富文本编辑 js文件--%>    <script charset="utf-8" src="../kindeditor/kindeditor-all.js"></script>    <script charset="utf-8" src="../kindeditor/kindeditor-all-min.js"></script>    <script charset="utf-8" src="../kindeditor/lang/zh-CN.js"></script>    <script charset="utf-8" src="../kindeditor/plugins/code/prettify.js"></script>

js代码块

         var KE;            KindEditor.ready(function(K) {                KE = K.create("textarea[id='editor']", {                    allowUpload : true,                    urlType : 'domain',//relative为相对路径，absolute为绝对路径，domain为带域名的绝对路径//                  allowFileManager:true, //允许对上传图片进行管理                    allowPreviewEmoticons : false,//                    allowFileManager : true, //浏览图片空间                    allowImageUpload: true, //多图上传。允许上传图片                    imageTabIndex : 1, //点击上传图片按钮默认显示标签，1为本地上传，默认为0网络图片                    allowImageRemote: false,//指定不能网络图片                    filterMode : false, //HTML特殊代码过滤，不会过滤HTML代码                    resizeType : 1,  //文本框不可拖动                    cssPath :项目路径+'/kindeditor/plugins/code/prettify.css',                    uploadJson :项目路径+'/fileouterupload/fileUpload.do',//上传图片到Java逻辑地址                afterCreate : function() {                this.sync();             },             afterBlur : function() {                   this.sync();               },                    afterBlur: function(){ this.sync(); }, //编辑器失去焦点(blur)时执行的回调函数（将编辑器的HTML数据同步到textarea）                //    afterUpload : function(url, data, name) { //上传文件后执行的回调函数，必须为3个参数                //        if(name=="image" || name=="multiimage"){ //单个和批量上传图片时                //            if(K("#pic").length>0){ //文本框存在                //                document.getElementById('piclist').options[document.getElementById('piclist').length]=new Option(url,url); //下拉列表框增加一条                //                document.getElementById('piclist').selectedIndex+=1; //选定刚新增的这一条                //                K("#indexpicimg").html("<img src='" + url + "' width='100px' height='100px' />"); //重置图片展示区DIV的HTML内容                //                K("#pic").val(url); //重置文本框值                //        }                //    }                //},            });                //KE.get            prettyPrint();        });

java逻辑代码

import org.apache.commons.fileupload.servlet.ServletFileUpload;import org.apache.commons.io.FileUtils;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.multipart.MultipartFile;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.File;import java.io.IOException;import java.io.PrintWriter;import java.text.SimpleDateFormat;import java.util.*;/** * kindeditor编辑器控制部分 */@Controller@RequestMapping("/fileouterupload")public class FileManageActionController extends BaseAction{    // windows    private String PATH_LINEs = "\\";    // linux    private String PATH_LINE = "/";    /**     * 文件上传     * @param request {@link HttpServletRequest}     * @param response {@link HttpServletResponse}     * @return json response     */    @SuppressWarnings("unchecked")    @RequestMapping(value = "/fileUpload", method = RequestMethod.POST)    @ResponseBody    public void fileUpload(HttpServletRequest request, HttpServletResponse response,@RequestParam(value = "imgFile", required = false) MultipartFile[] imgFile ) {        try {            response.setCharacterEncoding("utf-8");            PrintWriter out = response.getWriter();             //文件保存本地目录路径                String savePath = MapCacheManager.getInstance().getMapCache().get("serverPathUp");                String serverPicPath = savePath + "/" + "pic"+ "/";            //文件保存目录URL                String saveUrls =MapCacheManager.getInstance().getMapCache().get("serverPaths");                String saveUrlPath = saveUrls + "/" + "upload"+ "/";                if(!ServletFileUpload.isMultipartContent(request)){                out.print(getError("请选择文件。"));                out.close();                return;            }            //检查目录            File uploadDir = new File(serverPicPath);            if(!uploadDir.isDirectory()){                out.print(getError("上传目录不存在。"));                out.close();                return;            }            //检查目录写权限            if(!uploadDir.canWrite()){                out.print(getError("上传目录没有写权限。"));                out.close();                return;            }            String dirName = request.getParameter("dir");            if (dirName == null) {                dirName = "image";            }            //定义允许上传的文件扩展名            Map<String, String> extMap = new HashMap<String, String>();            extMap.put("image", "gif,jpg,jpeg,png,bmp");            extMap.put("flash", "swf,flv");            extMap.put("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");            extMap.put("file", "doc,docx,xls,xlsx,ppt,htm,html,xml,txt,zip,rar,gz,bz2");            if(!extMap.containsKey(dirName)){                out.print(getError("目录名不正确。"));                out.close();                return;            }            //创建文件夹            serverPicPath += dirName + PATH_LINE;           saveUrlPath+= dirName + PATH_LINE;            File saveDirFile = new File(serverPicPath);            if (!saveDirFile.exists()) {                saveDirFile.mkdirs();            }            SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");            String ymd = sdf.format(new Date());            serverPicPath += ymd + PATH_LINE;           saveUrlPath += ymd + PATH_LINE;            File dirFile = new File(serverPicPath);            if (!dirFile.exists()) {                dirFile.mkdirs();            }            //最大文件大小            long maxSize = 1000000;            // 保存文件            for(MultipartFile iFile : imgFile){                String fileName = iFile.getOriginalFilename();                //检查文件大小                if(iFile.getSize() > maxSize){                    out.print(getError("上传文件大小超过限制。"));                    out.close();                    return;                }                //检查扩展名                String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();                if(!Arrays.<String>asList(extMap.get(dirName).split(",")).contains(fileExt)){                    out.print(getError("上传文件扩展名是不允许的扩展名。\n只允许" + extMap.get(dirName) + "格式。"));                    out.close();                    return;                }                SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");                String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;                try{                    File uploadedFile = new File(serverPicPath, newFileName);                }catch(Exception e){                    out.print(getError("上传文件失败。"));                    out.close();                    return;                }                System.out.println(saveUrlPath+newFileName);                JSONObject obj = new JSONObject();                obj.put("error", 0);                obj.put("url", saveUrlPath + newFileName);                System.out.println(newFileName+"上传的图片");                out.print(obj.toJSONString());                out.close();            }        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    private Map<String, Object> getError(String errorMsg) {        Map<String, Object> errorMap = new HashMap<String, Object>();        errorMap.put("error", 1);        errorMap.put("message", errorMsg);        return errorMap;    }}

图片保存路径配置

serverPathUp=/opt/data/html/upload/(访问路径)serverPaths=http://ip地址:端口号

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