和上一份简单 上传下载一样
来，任何的方法不懂的，http://commons.apache.org/proper/commons-net/apidocs/org/apache/commons/net/ftp/FTPClient.html
API拿走不谢！！！
1.FTP配置实体
1 package com.agen.util;
2
3 public class FtpConfig {
4 //主机ip
5 private String FtpHost = "192.168.18.252";
6 //端口号
7 private int FtpPort = 21;
8 //ftp用户名
9 private String FtpUser = "ftp";
10 //ftp密码
11 private String FtpPassword = "agenbiology";
12 //ftp中的目录 这里先指定的根目录
13 private String FtpPath = "/";
14
15
16
17 public String getFtpHost() {
18 return FtpHost;
19 }
20 public void setFtpHost(String ftpHost) {
21 FtpHost = ftpHost;
22 }
23 public int getFtpPort() {
24 return FtpPort;
25 }
26 public void setFtpPort(int ftpPort) {
27 FtpPort = ftpPort;
28 }
29 public String getFtpUser() {
30 return FtpUser;
31 }
32 public void setFtpUser(String ftpUser) {
33 FtpUser = ftpUser;
34 }
35 public String getFtpPassword() {
36 return FtpPassword;
37 }
38 public void setFtpPassword(String ftpPassword) {
39 FtpPassword = ftpPassword;
40 }
41 public String getFtpPath() {
42 return FtpPath;
43 }
44 public void setFtpPath(String ftpPath) {
45 FtpPath = ftpPath;
46 }
47
48
49
50 }
2.FTP工具类，仅有一个删除文件夹【目录】的操作方法，删除文件夹包括文件夹下所有的文件
1 package com.agen.util;
2
3 import java.io.IOException;
4 import java.io.InputStream;
5 import java.io.OutputStream;
6
7 import org.apache.commons.net.ftp.FTPClient;
8 import org.apache.commons.net.ftp.FTPFile;
9
10
11
12 public class FtpUtils {
13
14 /**
15 * 获取FTP连接
16 * @return
17 */
18 public FTPClient getFTPClient() {
19 FtpConfig config = new FtpConfig();
20 FTPClient ftpClient = new FTPClient();
21 boolean result = true;
22 try {
23 //连接FTP服务器
24 ftpClient.connect(config.getFtpHost(), config.getFtpPort());
25 //如果连接
26 if (ftpClient.isConnected()) {
27 //提供用户名/密码登录FTP服务器
28 boolean flag = ftpClient.login(config.getFtpUser(), config.getFtpPassword());
29 //如果登录成功
30 if (flag) {
31 //设置编码类型为UTF-8
32 ftpClient.setControlEncoding("UTF-8");
33 //设置文件类型为二进制文件类型
34 ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
35 } else {
36 result = false;
37 }
38 } else {
39 result = false;
40 }
41 //成功连接并 登陆成功 返回连接
42 if (result) {
43 return ftpClient;
44 } else {
45 return null;
46 }
47 } catch (Exception e) {
48 e.printStackTrace();
49 return null;
50 }
51 }
52 /**
53 * 删除文件夹下所有文件
54 * @return
55 * @throws IOException
56 */
57 public boolean deleteFiles(String pathname) throws IOException{
58 FTPClient ftpClient = getFTPClient();
59 FTPFile [] ftpFiles = ftpClient.listFiles(new String((pathname).getBytes("UTF-8"),"iso-8859-1"));
60 if(ftpFiles.length > 0){
61 for (int i = 0; i < ftpFiles.length; i++) {
62 System.out.println(ftpFiles[i].getName());
63 if(ftpFiles[i].isDirectory()){
64 deleteFiles(pathname+"/"+ftpFiles[i].getName());
65 }else{
66 System.out.println(pathname);
67 //这里需要提供删除文件的路径名 才能删除文件
68 ftpClient.deleteFile(new String((pathname+"/"+ftpFiles[i].getName()).getBytes("UTF-8"),"iso-8859-1"));
69 FTPFile [] ftFiles = ftpClient.listFiles(new String((pathname).getBytes("UTF-8"),"iso-8859-1"));
70 if(ftFiles.length == 0){//如果文件夹中现在已经为空了
71 ftpClient.removeDirectory(new String(pathname.getBytes("UTF-8"),"iso-8859-1"));
72 }
73 }
74 }
75 }
76 return true;
77 }
78
79 /**
80 * 关闭 输入流或输出流
81 * @param in
82 * @param out
83 * @param ftpClient
84 */
85 public void close(InputStream in, OutputStream out,FTPClient ftpClient) {
86 if (null != in) {
87 try {
88 in.close();
89 } catch (IOException e) {
90 e.printStackTrace();
91 System.out.println("输入流关闭失败");
92 }
93 }
94 if (null != out) {
95 try {
96 out.close();
97 } catch (IOException e) {
98 e.printStackTrace();
99 System.out.println("输出流关闭失败");
100 }
101 }
102 if (null != ftpClient) {
103 try {
104 ftpClient.logout();
105 ftpClient.disconnect();
106 } catch (IOException e) {
107 e.printStackTrace();
108 System.out.println("Ftp服务关闭失败!");
109 }
110 }
111 }
112
113 }
3.实际用到的FTP上传【创建多层中文目录】+下载【浏览器下载OR服务器下载】+删除 【处理FTP编码方式与本地编码不一致】
1 /**
2 * 上传至FTP服务器
3 * @param partFile
4 * @param request
5 * @param diseaseName
6 * @param productName
7 * @param diseaseId
8 * @return
9 * @throws IOException
10 */
11 @RequestMapping("/uploadFiles")
12 @ResponseBody
13 public boolean uploadFiles(@RequestParam("upfile")MultipartFile partFile,HttpServletRequest request,String diseaseName,String productName,String diseaseId) throws IOException{
14 Disease disease = new Disease();
15 disease.setDiseaseId(diseaseId);
16 Criteria criteria = getCurrentSession().createCriteria(Filelist.class);
17 criteria.add(Restrictions.eq("disease", disease));
18 Filelist flFilelist = filelistService.uniqueResult(criteria);
19 if(flFilelist == null){
20 FtpUtils ftpUtils = new FtpUtils();
21 boolean result = true;
22 InputStream in = null;
23 FTPClient ftpClient = ftpUtils.getFTPClient();
24 if (null == ftpClient) {
25 System.out.println("FTP服务器未连接成功!!!");
26 return false;
27 }
28 try {
29
30 String path = "/file-ave/";
31 ftpClient.changeWorkingDirectory(path);
32 System.out.println(ftpClient.printWorkingDirectory());
33 //创建产品文件夹 转码 防止在FTP服务器上创建时乱码
34 ftpClient.makeDirectory(new String(productName.getBytes("UTF-8"),"iso-8859-1"));
35 //指定当前的工作路径到产品文件夹下
36 ftpClient.changeWorkingDirectory(path+new String(productName.getBytes("UTF-8"),"iso-8859-1"));
37 //创建疾病文件夹 转码
38 ftpClient.makeDirectory(new String(diseaseName.getBytes("UTF-8"),"iso-8859-1"));
39 //指定当前的工作路径到疾病文件夹下
40 ftpClient.changeWorkingDirectory(path+new String(productName.getBytes("UTF-8"),"iso-8859-1")+"/"+new String(diseaseName.getBytes("UTF-8"),"iso-8859-1"));
41
42 // 得到上传的文件的文件名
43 String filename = partFile.getOriginalFilename();
44 in = partFile.getInputStream();
45 ftpClient.storeFile(new String(filename.getBytes("UTF-8"),"iso-8859-1"), in);
46 path += productName+"/"+diseaseName+"/";
47
48
49 DecimalFormat df = new DecimalFormat();
50 String fileSize = partFile.getSize()/1024>100 ? (partFile.getSize()/1024/1024>100? df.format((double)partFile.getSize()/1024/1024/1024)+"GB" :df.format((double)partFile.getSize()/1024/1024)+"MB" ) :df.format((double)partFile.getSize()/1024)+"KB";
51 HttpSession session = request.getSession();
52 User user = (User) session.getAttribute("user");
53
54 Filelist filelist = new Filelist();
55 filelist.setFileId(UUID.randomUUID().toString());
56 filelist.setFileName(filename);
57 filelist.setFilePath(path+filename);
58 filelist.setFileCre(fileSize);
59 filelist.setCreateDate(new Timestamp(System.currentTimeMillis()));
60 filelist.setUpdateDate(new Timestamp(System.currentTimeMillis()));
61 filelist.setTransPerson(user.getUserId());
62 filelist.setDisease(disease);
63 filelistService.save(filelist);
64
65
66
67 return result;
68
69 } catch (IOException e) {
70 e.printStackTrace();
71 return false;
72 } finally {
73 ftpUtils.close(in, null, ftpClient);
74 }
75 }else{
76 return false;
77 }
78 }
79
80 /**
81 * 删除文件
82 * @param filelistId
83 * @return
84 * @throws IOException
85 * @throws UnsupportedEncodingException
86 */
87 @RequestMapping("/filelistDelete")
88 @ResponseBody
89 public boolean filelistDelete(String []filelistId) throws UnsupportedEncodingException, IOException{
90 for (String string : filelistId) {
91 Filelist filelist = filelistService.uniqueResult("fileId", string);
92 String filePath = filelist.getFilePath();
93 FtpUtils ftpUtils = new FtpUtils();
94 FTPClient ftpClient = ftpUtils.getFTPClient();
95 InputStream inputStream = ftpClient.retrieveFileStream(new String(filePath.getBytes("UTF-8"),"iso-8859-1"));
96 if(inputStream != null || ftpClient.getReplyCode() == 550){
97 ftpClient.deleteFile(new String(filePath.getBytes("UTF-8"),"iso-8859-1"));
98 }
99 filelistService.deleteById(string);
100 }
101 return true;
102 }
103
104 /**
105 * 下载到本地
106 * @param fileId
107 * @param response
108 * @return
109 * @throws IOException
110 * @throws InterruptedException
111 */
112 @RequestMapping("/fileDownload")
113 public String fileDownload(String fileId,HttpServletResponse response) throws IOException, InterruptedException{
114 Filelist filelist = filelistService.get(fileId);
115 Assert.notNull(filelist);
116 String filePath = filelist.getFilePath();
117 String fileName = filelist.getFileName();
118 String targetPath = "D:/biologyInfo/Download/";
119 File file = new File(targetPath);
120 while(!file.exists()){
121 file.mkdirs();
122 }
123 FtpUtils ftpUtils = new FtpUtils();
124 FileOutputStream out = null;
125 FTPClient ftpClient = ftpUtils.getFTPClient();
126 if (null == ftpClient) {
127 System.out.println("FTP服务器未连接成功!!!");
128 }
129 try {
130 //下载到 应用服务器而不是本地
131 // //要写到本地的位置
132 // File file2 = new File(targetPath + fileName);
133 // out = new FileOutputStream(file2);
134 // //截取文件的存储位置 不包括文件本身
135 // filePath = filePath.substring(0, filePath.lastIndexOf("/"));
136 // //文件存储在FTP的位置
137 // ftpClient.changeWorkingDirectory(new String(filePath.getBytes("UTF-8"),"iso-8859-1"));
138 // System.out.println(ftpClient.printWorkingDirectory());
139 // //下载文件
140 // ftpClient.retrieveFile(new String(fileName.getBytes("UTF-8"),"iso-8859-1"), out);
141 // return true;
142
143 //下载到 客户端 浏览器
144 InputStream inputStream = ftpClient.retrieveFileStream(new String(filePath.getBytes("UTF-8"),"iso-8859-1"));
145 response.setContentType("multipart/form-data");
146 response.setHeader("Content-Disposition", "attachment;filename="+ new String(fileName.getBytes("UTF-8"),"iso-8859-1"));
147 OutputStream outputStream = response.getOutputStream();
148 byte[] b = new byte[1024];
149 int length = 0;
150 while ((length = inputStream.read(b)) != -1) {
151 outputStream.write(b, 0, length);
152 }
153
154 } catch (IOException e) {
155 e.printStackTrace();
156 } finally {
157 ftpUtils.close(null, out, ftpClient);
158 }
159 return null;
160 }
时间： 2024-10-05 11:22:31