kindeditor完美整合struts2实现图片上传的功能

当年第一次做这个，网上找的方法很不满意，现在功力大增，使用自己的方法整合一下。很是满意。用到这方面的同学一看就能懂了。

1.action部分

package com.actions.kindEditor;

import java.io.File;
import java.io.FileInputStream;
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.FileUploadException;
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.ActionSupport;

public class UploadImgAction extends ActionSupport{

	
	public String img() throws FileUploadException, IOException{
		
		HttpServletRequest request = ServletActionContext.getRequest();
		HttpServletResponse response = ServletActionContext.getResponse();
		PrintWriter out = response.getWriter();
		
		String savePath = request.getRealPath("/")+"attached/";
		File test = new File(savePath);
		if(!test.exists()){
			test.mkdirs();
		}
		//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<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,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.print(getError("请选择文件。"));
			return "err";
		}
		//检查目录
		File uploadDir = new File(savePath);
		if(!uploadDir.isDirectory()){
			out.print(getError("上传目录不存在。"));
			return "err";
		}
		//检查目录写权限
		if(!uploadDir.canWrite()){
			out.print(getError("上传目录没有写权限。"));
			return "err";
		}

		String dirName = request.getParameter("dir");
		if (dirName == null) {
			dirName = "image";
		}
		if(!extMap.containsKey(dirName)){
			out.print(getError("目录名不正确。"));
			return "err";
		}
		//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();
		}
		
		
		 MultiPartRequestWrapper wrapper = (MultiPartRequestWrapper)request;  
	        String fileName = wrapper.getFileNames("imgFile")[0];  
	        File file = wrapper.getFiles("imgFile")[0];  
	        
	        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。"));
				
			}
	        SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
			String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;
		
	        saveUrl += newFileName;  
	  
	        FileOutputStream fos = new FileOutputStream(savePath + newFileName);  
	        byte[] buffer = new byte[1024];  
	        InputStream in = new FileInputStream(file);  
	         
	        try {  
	            int num = 0;  
	            while ((num = in.read(buffer)) > 0) {  
	                fos.write(buffer, 0, num);  
	            }  
	        } catch (Exception e) {  
	            e.printStackTrace(System.err);  
	        } finally {  
	            try{  
	                if(in != null)  
	                    in.close();  
	                if(fos != null)  
	                    fos.close();  
	            }catch(IOException e){}  
	        }  
	  
	        JSONObject obj = new JSONObject();  
	        obj.put("error", 0);  
	        obj.put("url", saveUrl);  
	        System.out.println(saveUrl);
	       out.print(obj.toJSONString());  
	        
		
		return null;
	}
	
	private String getError(String message) {
		JSONObject obj = new JSONObject();
		obj.put("error", 1);
		obj.put("message", message);
		return obj.toJSONString();
	}

	
	
}

<action name="uploadimage" class="com.actions.kindEditor.UploadImgAction" method="img">
			
		</action>

<script src="kindeditor/lang/zh_CN.js"></script>
		
		<script>
			var editor1;
			
			KindEditor.ready(function(K) {
				editor1 = K.create(‘textarea[name="content"]‘, {
					resizeType : 1,
					uploadJson : ‘uploadimage‘,
					//uploadJson : ‘kindeditor/jsp/upload_json.jsp‘,
					//fileManagerJson : ‘kindeditor/jsp/file_manager_json.jsp‘,
					allowPreviewEmoticons : true,
					allowImageUpload : true,
					minWidth : ‘500px‘,
					items : [
						‘source‘,‘wordpaste‘,‘preview‘,
						‘fontname‘, ‘fontsize‘, ‘|‘, ‘forecolor‘, ‘hilitecolor‘, ‘bold‘, ‘italic‘, ‘underline‘,
						‘removeformat‘, ‘|‘, ‘justifyleft‘, ‘justifycenter‘, ‘justifyright‘, ‘insertorderedlist‘,
						‘insertunorderedlist‘, ‘|‘, ‘emoticons‘, ‘image‘, ‘link‘,‘baidumap‘]
				});
			});
		</script>

<textarea name="content"></textarea>

kindeditor完美整合struts2实现图片上传的功能,布布扣,bubuko.com

kindeditor完美整合struts2实现图片上传的功能

原文：http://blog.csdn.net/suifengerbi/article/details/22659389