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xheditor上传图片的java实现

时间:2014-07-18 19:09:17      阅读:499      评论:0      收藏:0      [点我收藏+]

  最近一个项目中因为框架的原因,很多文本编辑器都不兼容,最后找到xheditor,这个富文本编辑器的确不错,功能基本都能满足,只是上传图片的java接口需要自己写,因此,测试了两种方法,最终成功。分享给大家。

     xheditor官方给出了上传接口。因此我们只需要调用自己的Action按照它指定的json格式返回一个json数据就可以了。bubuko.com,布布扣

 

一、使用servlet时的实现方式,servlet的实现方式需要引入commons-fileupload-1.3.1.jar包。主要是用来解析前台传过来的请求。

  1、前台页面的写法,当然要引入xheditor啦,这里我就写了。这里主要是upImgUrl要写上你后台的Servlet。

<textarea class="editor" name="articleContent" rows="35" cols="100" style="z-index:99;" 
        upImgUrl="UploadFileServlet" upImgExt="jpg,jpeg,gif,png" >
    ${article.articlecontent }
</textarea>

     2、后台servlet的写法。配置文件中我也省略了,这里仅仅是一个Servlet。需要注意的,这里要引入commons-fileupload-1.3.1.jar包来解析请求。

package com.zk.web.action;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;


public class UploadFileServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private ServletContext sc;
    
    public void init(ServletConfig config) {
        sc = config.getServletContext();
    }
    
    protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        this.doPost(request, response);
    }

    protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        ServletOutputStream out = response.getOutputStream();
        request.setCharacterEncoding( "utf-8" );
        response.setHeader("Content-Type" , "text/html");
        String returnPath = "";
        
        DiskFileItemFactory factory = new DiskFileItemFactory();
        ServletFileUpload upload = new ServletFileUpload(factory);
        try {
            List items = upload.parseRequest(request);
            Iterator iter = items.iterator();
            while (iter.hasNext()) {
                FileItem item = (FileItem) iter.next();
                    System.out.println("上传文件的大小:" + item.getSize());
                    System.out.println("上传文件的类型:" + item.getContentType());
                    System.out.println("上传文件的名称:" + item.getName());
                    
                    returnPath = "images/"+item.getName();
                    //这里是取得项目地址
                    File forder = new File(sc.getRealPath("/")+"images/");
            //判断文件夹是否存在
if (!forder.exists()) { forder.mkdir(); } File file = new File(sc.getRealPath("/")+"images/"+item.getName()); item.write(file); System.out.println("上传文件成功!"); } } catch (Exception e) { e.printStackTrace(); System.out.println("上传文件失败"); } //这里是关键,返回上传图片存储在服务器的地址。路径根据自己项目的路径调整。 out.print("{‘err‘:‘‘,‘msg‘:‘"+ returnPath.replace("\\", "/")+"‘}"); } }

二、使用spring mvc时的实现方式。uploadImage就是一个Action,

  1、前台页面的写法,当然要引入xheditor啦,这里我就写了。这里主要是upImgUrl要写上你后台的Action。

<textarea class="editor" name="articleContent" rows="35" cols="100" style="z-index:99;" 
        upImgUrl="uploadImage.do" upImgExt="jpg,jpeg,gif,png" >
    ${article.articlecontent }
</textarea>

     2、后台Action的写法,这里是使用的是sping mvc框架,spring没测试过,有需要的可以试试。

/**
     * 文本编辑器上传图片
     * @param request
     * @param response
     * @return
     * @throws Exception
     */
    public void uploadImage(HttpServletRequest request,
            HttpServletResponse response)throws Exception{
        ServletOutputStream out = response.getOutputStream();
        request.setCharacterEncoding( "utf-8" );
        response.setHeader("Content-Type" , "text/html");
        
        CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver(
                request.getSession().getServletContext());
        // 设置编码
        commonsMultipartResolver.setDefaultEncoding("utf-8");
        if (commonsMultipartResolver.isMultipart(request)) {
            MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
            MultipartFile image = multipartRequest.getFile("filedata");
            String url = "images"+File.separator+Tool.dateToString(new Date(), "yyyyMMdd")+File.separator;
       //这里可以从项目中取得你项目根目录的地址 String filePath
= "D:/"+url; Random r = new Random(); if(image != null && !image.isEmpty()){ InputStream xtins = image.getInputStream(); String hj = new String(image.getOriginalFilename().getBytes("ISO-8859-1"),"UTF-8"); hj = hj.split("\\.")[1];
          //这里用来生成文件名 String fileName
= Tool.dateToString(new Date(), "yyyyMMddHHmmss")+r.nextInt(1000)+"."+hj; saveInputStreamToFile(filePath, fileName, xtins);
          //这里是用来返回给xheditor的 out.print(
"{‘err‘:‘‘,‘msg‘:‘"+ (url+fileName).replace("\\", "/")+"‘}"); } } } /** * 保存文件流到指定路径 * @param filePath * @param fileName * @param inputStream * @throws Exception */ public void saveInputStreamToFile(String filePath, String fileName, InputStream inputStream) throws Exception { OutputStream os = null; try { File forder = new File(filePath); if (!forder.exists()) { forder.mkdir(); } File file = new File(filePath + fileName); os = new FileOutputStream(file); int bytesRead = 0; byte[] buffer = new byte[8192]; while ((bytesRead = inputStream.read(buffer, 0, 8192)) != -1) { os.write(buffer, 0, bytesRead); } os.close(); inputStream.close(); } catch (Exception ex) { ex.printStackTrace(); throw ex; } finally { if (inputStream != null) { inputStream.close(); } if (os != null) { os.close(); } } }

xheditor上传图片的java实现,布布扣,bubuko.com

xheditor上传图片的java实现

原文:http://www.cnblogs.com/fengqingyuweihan/p/3850875.html

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