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kindeditor图片上传 struts2实现

作者:山西坦达清洁设备有限公司 来源:www.sxtdqj.com 发布时间:2017-09-08 23:09:41
kindeditor图片上传 struts2实现

一、kindeditor以及struts2部署搭建不再赘述,如需要请参考kindeditor使用方法Struts2框架搭建

二、kindeditor图片上传所依赖jar包在kindeditor\jsp\lib下有

三、以下列出部分核心代码,如需要全部源码可点击下载(待上传)


JSP

<script type="text/javascript"> $(function(){ KindEditor.ready(function(K) { var editor1 = K.create('#editor_id', //自定义工具栏 items:[ 'code', '); }); }) </script>
Struts

Action import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.text.SimpleDateFormat; import java.util.Arrays; import java.util.Date; import java.util.HashMap; import java.util.Random; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.struts2.ServletActionContext; import org.apache.struts2.dispatcher.multipart.MultiPartRequestWrapper; import org.json.simple.JSONObject; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; public class ImgUploadAction extends ActionSupport { private static final long serialVersionUID = 1L; public String imgUpload() { //获取response、request对象 ActionContext ac = ActionContext.getContext(); HttpServletResponse response = (HttpServletResponse) ac.get(ServletActionContext.HTTP_RESPONSE); HttpServletRequest request = (HttpServletRequest) ac.get(ServletActionContext.HTTP_REQUEST); PrintWriter out = null; //输出流 try out = response.getWriter(); catch (IOException e1) e1.printStackTrace(); String savePath = ServletActionContext.getServletContext().getRealPath("/") + "attached/"; // 文件保存目录URL String saveUrl = request.getContextPath() + "/attached/"; // 定义允许上传的文件扩展名 HashMap extMap = new HashMap(); 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,txt,zip,rar,gz,bz2"); // 最大文件大小 long maxSize = 1000000; response.setContentType("text/html; charset=UTF-8"); if (!ServletFileUpload.isMultipartContent(request)) out.println(getError("请选择文件。")); return null; // 检查目录 File uploadDir = new File(savePath); if (!uploadDir.isDirectory()) out.println(getError("上传目录不存在。")); return null; // 检查目录写权限 if (!uploadDir.canWrite()) out.println(getError("上传目录没有写权限。")); return null; String dirName = request.getParameter("dir"); if (dirName == null) dirName = "image"; if (!extMap.containsKey(dirName)) out.println(getError("目录名不正确。")); return null; // 创建文件夹 savePath += dirName + "/"; saveUrl += dirName + "/"; File saveDirFile = new File(savePath); if (!saveDirFile.exists()) saveDirFile.mkdirs(); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd"); String ymd = sdf.format(new Date()); savePath += ymd + "/"; saveUrl += ymd + "/"; File dirFile = new File(savePath); if (!dirFile.exists()) dirFile.mkdirs(); FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); upload.setHeaderEncoding("UTF-8"); MultiPartRequestWrapper wrapper = (MultiPartRequestWrapper) request; // 获得上传的文件名 String fileName = wrapper.getFileNames("imgFile")[0];// imgFile,imgFile,imgFile // 获得文件过滤器 File file = wrapper.getFiles("imgFile")[0]; // 检查扩展名 String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase(); if (!Arrays. asList(extMap.get(dirName).split(",")).contains(fileExt)) out.println(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。")); return null; // 检查文件大小 if (file.length() > maxSize) out.println(getError("上传文件大小超过限制。")); return null; // 重构上传图片的名称 SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss"); String newImgName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt; byte[] buffer = new byte[1024]; // 获取文件输出流 FileOutputStream fos; // 获取内存中当前文件输入流 InputStream in; try { fos = new FileOutputStream(savePath + "/" + newImgName); in = new FileInputStream(file); int num = 0; while ((num = in.read(buffer)) > 0) fos.write(buffer, 0, num); in.close(); fos.close(); } catch (FileNotFoundException e1) e1.printStackTrace(); catch (IOException e) e.printStackTrace(); // 发送给 kindeditor JSONObject obj = new JSONObject(); obj.put("error", 0); obj.put("url", saveUrl + "/" + newImgName); out.println(obj.toJSONString()); return null; } private String getError(String message) JSONObject obj = new JSONObject(); obj.put("error", 1); obj.put("message", message); return obj.toJSONString(); } kindeditor有自带的jsp图片上传demo

uploadJson : '../jsp/upload_json.jsp'

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