手把手教你玩转上传图片
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mvc 大家肯定比两下还要懂，那么我说从 jsp --> controller --> dao 三层，下面直接贴原代码：
一、V jsp 导入 ajaxfileupload.js:
1.1、前端Jsp:
<img class="imgCursor" id="interImg" src="<%=path%>/images/noPricture.jpg" /><input type="file" src="" multiple="multiple" id="fileBtn1" class="hiddenFileBtn" accept="image/*" name="imgFile" style="display:none;"/>1.2、Js:
$.ajax({ type:"post", url:"saveArchive", data:data, success:function(data){ $("#DialogInfo").dialog('close'); if(data.code = "0003"){ $.messager.alert("信息提示",data.message,"info"); $('#viewList').datagrid('reload'); }else{ $.messager.alert("信息提示",data.message,"info"); } }});二、Controller:
/** * 上传图片 */@RequestMapping(value = "imageUpload", method = RequestMethod.POST)@ResponseBodypublic Map<String, Object> imageUpload( @RequestParam(value = "imgFile", required = false) MultipartFile imgFile, HttpServletRequest request) { String tomcatPath = request.getServletContext().getRealPath("/"); String path = tomcatPath+"/images/" + DateUtil.getDateInfo()+"/img/"; File dir = new File(path); if (!dir.exists()) { dir.mkdirs(); } String fileName = imgFile.getOriginalFilename(); String suffix = fileName.substring(fileName.lastIndexOf(".")) .toLowerCase(); String[] images = {".jpg",".jpeg",".png",".bmp",".ico",".gif"};// 定义图片格式数组 boolean flag = false; for (int i = 0; i < images.length; i++) { if(suffix.equals(images[i])){ flag = true; break; } } Map<String, Object> succMap = new HashMap<String, Object>(); String returnCode = null; Boolean boole =true; if(flag){ fileName = UUID.randomUUID().toString().replaceAll("-", "") + suffix; path = path + fileName; File saveFile = new File(path); try { imgFile.transferTo(saveFile); boole = ImageUtil.isImage(saveFile); if(boole){ returnCode = ReturnCode.UPLOAD_SUCCESS.toString(); // FTP同步图片 if(PropertiesUtils.STATIC_IMGFTP_STATUS.equals("true")){//启用ftp同步 ImageUtil ftp = new ImageUtil(); ftp.ftpLogin(); Boolean bool = ftp.uploadFile(saveFile,"/images/" + DateUtil.getDateInfo()+"/img/"); if(bool){ returnCode = ReturnCode.UPLOAD_SUCCESS.toString(); }else{ returnCode = ReturnCode.UPLOAD_ERROR.toString(); } //关闭上传 ftp.ftpLogOut(); } }else{ if (saveFile.exists()) { saveFile.delete();//删除文件 } returnCode = ReturnCode.UPLOAD_ERROR.toString(); } } catch (Exception e) { e.printStackTrace(); } String result = path.replace(tomcatPath, ""); succMap.put("url", result); }else{ returnCode = ReturnCode.UPLOAD_ASTRICT.toString(); } succMap.put("returnCode", returnCode); return succMap;}三、FTP:/** * Description: 向FTP服务器上传文件 * @param host FTP服务器hostname * @param port FTP服务器端口 * @param username FTP登录账号 * @param password FTP登录密码 * @param basePath FTP服务器基础目录 * @param filePath FTP服务器文件存放路径。例如分日期存放：/2015/01/01。文件的路径为basePath+filePath * @param filename 上传到FTP服务器上的文件名 * @param input 输入流 * @return 成功返回true，否则返回false */ public static boolean uploadFile(String host, int port, String username, String password, String basePath,String filePath, String filename, InputStream input) {boolean result = false;FTPClient ftp = new FTPClient();FTPClientConfig conf = new FTPClientConfig(FTPClientConfig.SYST_UNIX);conf.setServerTimeZoneId(TimeZone.getDefault().getID()); ftp.configure(conf); try {int reply;ftp.connect(host, port);// 连接FTP服务器// 如果采用默认端口，可以使用ftp.connect(host)的方式直接连接FTP服务器ftp.login(username, password);// 登录reply = ftp.getReplyCode();if (!FTPReply.isPositiveCompletion(reply)) {ftp.disconnect();return result;}//切换到上传目录if (!ftp.changeWorkingDirectory(basePath+filePath)) {//如果目录不存在创建目录String[] dirs = filePath.split("/");String tempPath = basePath;for (String dir : dirs) {if (null == dir || "".equals(dir)) continue;tempPath += "/" + dir;if (!ftp.changeWorkingDirectory(tempPath)) {if (!ftp.makeDirectory(tempPath)) {return result;} else {ftp.changeWorkingDirectory(tempPath);}}}}//设置上传文件的类型为二进制类型ftp.setFileType(FTP.BINARY_FILE_TYPE);ftp.enterLocalPassiveMode();ftp.setBufferSize(1024 * 20); ftp.setDataTimeout(30 * 1000); //上传文件if (!ftp.storeFile(filename, input)) {return result;}input.close();ftp.logout();result = true;} catch (IOException e) {e.printStackTrace();} finally {if (ftp.isConnected()) {try {ftp.disconnect();} catch (IOException ioe) {ioe.printStackTrace();}}}return result;}四、ImageUtil工具类：package com.chinadatapay.util;import java.awt.Image;import java.io.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.util.TimeZone;import javax.imageio.ImageIO;import org.apache.commons.net.ftp.FTPClient;import org.apache.commons.net.ftp.FTPClientConfig;import org.apache.commons.net.ftp.FTPReply;import org.apache.log4j.Logger;public class ImageUtil {public ImageUtil(){ftpClient = new FTPClient(); }private static ImageUtil image=null; //静态工厂方法 public static ImageUtil getInstance() { if (image == null) { image = new ImageUtil(); } return image; } private FTPClient ftpClient; private final static String strIp =PropertiesUtils.STATIC_IMG_IP; //192.168.10.12 private final static int intPort =21; private final static String user =PropertiesUtils.STATIC_IMG_USER; private final static String password =PropertiesUtils.STATIC_IMG_PWD; private static Logger logger = Logger.getLogger(ImageUtil.class.getName()); /** * @return 判断是否登入成功 * */ public boolean ftpLogin() { boolean isLogin = false; FTPClientConfig ftpClientConfig = new FTPClientConfig(); ftpClientConfig.setServerTimeZoneId(TimeZone.getDefault().getID()); this.ftpClient.setControlEncoding("GBK"); this.ftpClient.configure(ftpClientConfig); try { if (this.intPort > 0) { this.ftpClient.connect(this.strIp, this.intPort); } else { this.ftpClient.connect(this.strIp); } // FTP服务器连接回答 int reply = this.ftpClient.getReplyCode(); if (!FTPReply.isPositiveCompletion(reply)) { this.ftpClient.disconnect(); logger.error("登录FTP服务失败！"); return isLogin; } this.ftpClient.login(this.user, this.password); // 设置传输协议 this.ftpClient.enterLocalPassiveMode(); this.ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); logger.info("恭喜" + this.user + "成功登陆FTP服务器"); isLogin = true; } catch (Exception e) { e.printStackTrace(); logger.error(this.user + "登录FTP服务失败！" + e.getMessage()); } this.ftpClient.setBufferSize(1024 * 2); this.ftpClient.setDataTimeout(30 * 1000); return isLogin; } /** * @退出关闭服务器链接 * */ public void ftpLogOut() { if (null != this.ftpClient && this.ftpClient.isConnected()) { try { boolean reuslt = this.ftpClient.logout();// 退出FTP服务器 if (reuslt) { logger.info("成功退出服务器"); } } catch (IOException e) { e.printStackTrace(); logger.warn("退出FTP服务器异常！" + e.getMessage()); } finally { try { this.ftpClient.disconnect();// 关闭FTP服务器的连接 } catch (IOException e) { e.printStackTrace(); logger.warn("关闭FTP服务器的连接异常！"); } } } } /*** * 上传Ftp文件 * @param localFile 当地文件 * @param romotUpLoadePath上传服务器路径 - 应该以/结束 * */ public boolean uploadFile(File localFile, String romotUpLoadePath) { BufferedInputStream inStream = null; boolean success = false; try { Boolean bool = ftpClient.changeWorkingDirectory(romotUpLoadePath); if(bool == false){//如果不存在 创建文件夹 this.ftpClient.makeDirectory(romotUpLoadePath); //通过远程命令 穿件一个files文件夹 boolean change = createDirectory(romotUpLoadePath , ftpClient) ; if(!change){ logger.error("文件服务器切换工作目录失败"); } } this.ftpClient.changeWorkingDirectory(romotUpLoadePath);// 改变工作路径 inStream = new BufferedInputStream(new FileInputStream(localFile)); logger.info(localFile.getName() + "开始上传....."); success = this.ftpClient.storeFile(localFile.getName(), inStream); if (success == true) { logger.info(localFile.getName() + "上传成功"); return success; } } catch (FileNotFoundException e) { e.printStackTrace(); logger.error(localFile + "未找到"); } catch (IOException e) { e.printStackTrace(); } finally { if (inStream != null) { try { inStream.close(); } catch (IOException e) { e.printStackTrace(); } } } return success; } /** * 在ftp服务器创建目录 */ public static boolean createDirectory(String path, FTPClient ftpClient)throws IOException {boolean flag = false;String[] pathes = path.split("/");for (int i = 0; i < pathes.length; i++) {ftpClient.makeDirectory(pathes[i]);flag = ftpClient.changeWorkingDirectory(pathes[i]);}return flag;} /*** * @上传文件夹 * @param localDirectory * 当地文件夹 * @param remoteDirectoryPath * Ftp 服务器路径 以目录"/"结束 * */ public boolean uploadDirectory(String localDirectory, String remoteDirectoryPath) { File src = new File(localDirectory); try { remoteDirectoryPath = remoteDirectoryPath + src.getName() + "/"; this.ftpClient.makeDirectory(remoteDirectoryPath); // ftpClient.listDirectories(); } catch (IOException e) { e.printStackTrace(); logger.info(remoteDirectoryPath + "目录创建失败"); } File[] allFile = src.listFiles(); for (int currentFile = 0; currentFile < allFile.length; currentFile++) { if (!allFile[currentFile].isDirectory()) { String srcName = allFile[currentFile].getPath().toString(); // uploadFile(new File(srcName), remoteDirectoryPath); } } for (int currentFile = 0; currentFile < allFile.length; currentFile++) { if (allFile[currentFile].isDirectory()) { // 递归 uploadDirectory(allFile[currentFile].getPath().toString(), remoteDirectoryPath); } } return true; } // FtpClient的Set 和 Get 函数 public FTPClient getFtpClient() { return ftpClient; } public void setFtpClient(FTPClient ftpClient) { this.ftpClient = ftpClient; } public static void main(String[] args) throws IOException { ImageUtil ftp=new ImageUtil(); ftp.ftpLogin(); File file = new File("D:\\apache-tomcat-7.0.70\\wtpwebapps\\chinadatapay.user\\xml\\WebSite.xml"); ftp.uploadFile(file,"/xml/" + DateUtil.getDateInfo()+"/"); //上传文件夹 ftp.ftpLogOut(); System.out.println("上传成功"); }public static void testImageUp(String param){System.out.println("调用接口保存图片..."+param);}/** * 通过读取文件并获取其width及height的方式，来判断判断当前文件是否图片，这是一种非常简单的方式。 * * @param imageFile * @return */ public static boolean isImage(File imageFile) { if (!imageFile.exists()) { return false; } Image img = null; try { img = ImageIO.read(imageFile); if (img == null || img.getWidth(null) <= 0 || img.getHeight(null) <= 0) { return false; } return true; } catch (Exception e) { return false; } finally { img = null; } } } 1 0
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