1.pom
1 <dependency>
2 <groupId>net.oschina.zcx7878</groupId>
3 <artifactId>fastdfs-client-java</artifactId>
4 <version>1.27.0.0</version>
5 </dependency>
2.工具类
1 import org.csource.common.NameValuePair;
2 import org.csource.fastdfs.*;
3 import org.springframework.core.io.ClassPathResource;
4 import java.io.ByteArrayInputStream;
5 import java.io.IOException;
6 import java.io.InputStream;
7
8 public class FastDFSClient {
9
10
11
12
13 /****
14 * 初始化Tracker的链接信息
15 * 实现文件上传
16 * 必须知道Tracker的链接IP和端口
17 */
18 static {
19 try {
20 //1.读取文件
21 String filePath = new ClassPathResource("fdfs_client.conf").getPath();//类路径下的文件名字
22 //2.使用FastDFS客户端初始化加载数据
23 ClientGlobal.init(filePath);
24 } catch (Exception e) {
25 e.printStackTrace();
26 }
27 }
28
29 /****
30 * 文件上传
31 */
32 public static String[] upload(FastDFSFile file) throws Exception{
33 //自定义扩展参数
34 NameValuePair[] meta_list = new NameValuePair[2];
35 meta_list[0]=new NameValuePair("设备","HUAWEI Mate 90 Pro Max Plus 9G");
36 meta_list[1]=new NameValuePair("地点","北京");
37
38 //1、请求TrackerServer
39 StorageClient storageClient = getStorageClient();
40
41 /***
42 * 4、根据存储的Storage信息实现文件上传
43 * 1:文件的字节数组
44 * 2:文件的扩展名(后缀,jpg,mp4)
45 * 3:自定义扩展参数
46 */
47 String[] backlist = storageClient.upload_file(file.getContent(), file.getExt(), meta_list);
48
49
50 return backlist;
51
52
53 }
54
55
56 /***
57 * 获取文件信息
58 */
59 public static FileInfo getFile(String groupName, String remoteFileName) throws Exception{
60 //1、请求TrackerServer
61 StorageClient storageClient = getStorageClient();
62
63 /***
64 * 4、获取文件信息
65 * 1:文件所属的组名
66 * 2:文件的存储路径信息
67 */
68 return storageClient.get_file_info(groupName,remoteFileName);
69 }
70
71
72 /***
73 * 文件下载-Storage
74 * @throws Exception
75 */
76 public static InputStream downFile(String groupName, String remoteFileName)throws Exception{
77 StorageClient storageClient = getStorageClient();
78
79 /***
80 * 4、文件下载
81 * 1:文件所属的组名
82 * 2:文件的存储路径信息
83 **/
84 byte[] bytes = storageClient.download_file(groupName, remoteFileName);
85
86 //将字节数组转换成InputStream
87 ByteArrayInputStream is = new ByteArrayInputStream(bytes);
88 return is;
89 }
90
91 /***
92 * 抽取获取StorageClient
93 * @return
94 * @throws IOException
95 */
96 public static StorageClient getStorageClient() throws IOException {
97 //1、请求TrackerServer
98 TrackerClient client = new TrackerClient();
99
100 //2、请求TrackerServer后返回的数据包含Storage的信息
101 TrackerServer trackerServer = client.getConnection();
102
103 //3、取出Storage信息,并且存储起来(storageClient)
104 return new StorageClient(trackerServer,null);
105 }
106
107
108 /***
109 * 文件删除
110 * @throws Exception
111 */
112 public static int delete(String groupName, String remoteFileName) throws Exception{
113 //1、请求TrackerServer
114 StorageClient storageClient = getStorageClient();
115
116 //4、文件删除
117 int count = storageClient.delete_file(groupName, remoteFileName);
118 return count;
119 }
120
121
122
123 /***
124 * 文件删除
125 * @throws Exception
126 */
127 public static int delete(String path) throws Exception{
128 String[] split = path.split("/");
129 String groupName="";
130 String remoteFileName="";
131 for (int i=0;i<split.length;i++){
132 if (split[i].startsWith("group")){
133 groupName=split[i];
134 String[] split1 = path.split(split[i]);
135 remoteFileName = split1[1].substring(1);
136 break;
137 }
138 }
139
140 //1、请求TrackerServer
141 StorageClient storageClient = getStorageClient();
142
143 //4、文件删除
144 int count = storageClient.delete_file(groupName, remoteFileName);
145 return count;
146 }
147
148 /***
149 * 获取Storage组信息
150 * @throws Exception
151 */
152 public static StorageServer getStorages(String groupName) throws Exception{
153 //1、请求TrackerServer
154 TrackerClient client = new TrackerClient();
155
156 //2、请求TrackerServer后返回的数据包含Storage的信息
157 TrackerServer trackerServer = client.getConnection();
158
159 //3、获取指定组的信息
160 return client.getStoreStorage(trackerServer,groupName);
161 }
162
163
164 /***
165 * 获取相关的Storage服务信息
166 * @throws Exception
167 */
168 public static ServerInfo[] getServerInfo(String groupName, String remoteFileName) throws Exception{
169 //1、请求TrackerServer
170 TrackerClient client = new TrackerClient();
171
172 //2、请求TrackerServer后返回的数据包含Storage的信息
173 TrackerServer trackerServer = client.getConnection();
174
175 //3、获取Storage信息
176 return client.getFetchStorages(trackerServer,groupName,remoteFileName);
177 }
178
179 /****
180 * 获取Tracker的信息
181 * @throws Exception
182 */
183 public static String getTrackerUrl() throws Exception{
184 //1、请求TrackerServer
185 TrackerClient client = new TrackerClient();
186
187 //2、请求TrackerServer后返回的数据包含Storage的信息
188 TrackerServer trackerServer = client.getConnection();
189
190 //获取Tracker相关信息 TCP 11211/Http 8080
191 String url="Http://"+trackerServer.getInetSocketAddress().getHostString()+":"+ClientGlobal.getG_tracker_http_port();
192 return url;
193 }
194
195 public static void main(String[] args) throws Exception{
196 //获取文件信息测试
197 //FileInfo fileInfo = getFile("group1","M00/00/00/wKjThF3668eASWAHAAnAAJuzIB4619.jpg");
198 //System.out.println("IP:"+fileInfo.getSourceIpAddr());
199
200 //文件下载
201 //InputStream is = downFile("group1", "M00/00/00/wKjThF3668eASWAHAAnAAJuzIB4619.jpg");
202 //创建字节输出流
203 //FileOutputStream os = new FileOutputStream("D:/123.jpg");
204 //byte[] buffer = new byte[1024];
205 //while (is.read(buffer)!=-1){
206 // os.write(buffer);
207 //}
208 //关闭资源
209 //is.close();
210 //os.close();
211
212 //删除文件
213 //delete("group1", "M00/00/00/wKjThF3668eASWAHAAnAAJuzIB4619.jpg");
214
215 //获取Storage信息
216 //StorageServer group1 = getStorages("group1");
217 //System.out.println(group1.getStorePathIndex());
218
219 //获取指定文件所在的Storage组的信息
220 //ServerInfo[] serverInfo = getServerInfo("group1", "M00/00/00/wKjThF369TOAA2BUAAnAAJuzIB4033.jpg");
221 //for (ServerInfo info : serverInfo) {
222 // System.out.println(info.getIpAddr() + ":" + info.getPort());
223 //}
224
225 String trackerUrl = getTrackerUrl();
226 System.out.println(trackerUrl);
227 }
228
229
230 }
3.实体类
1 public class FastDFSFile {
2
3 //文件名字
4 private String name;
5 //文件内容
6 private byte[] content;
7 //文件扩展名
8 private String ext;
9 //文件MD5摘要值
10 private String md5;
11 //文件创建作者
12 private String author;
13
14 public FastDFSFile(String name, byte[] content, String ext, String md5, String author) {
15 this.name = name;
16 this.content = content;
17 this.ext = ext;
18 this.md5 = md5;
19 this.author = author;
20 }
21
22 public FastDFSFile(String name, byte[] content, String ext) {
23 this.name = name;
24 this.content = content;
25 this.ext = ext;
26 }
27
28 public FastDFSFile() {
29 }
30
31
32 public String getName() {
33 return name;
34 }
35
36 public void setName(String name) {
37 this.name = name;
38 }
39
40 public byte[] getContent() {
41 return content;
42 }
43
44 public void setContent(byte[] content) {
45 this.content = content;
46 }
47
48 public String getExt() {
49 return ext;
50 }
51
52 public void setExt(String ext) {
53 this.ext = ext;
54 }
55
56 public String getMd5() {
57 return md5;
58 }
59
60 public void setMd5(String md5) {
61 this.md5 = md5;
62 }
63
64 public String getAuthor() {
65 return author;
66 }
67
68 public void setAuthor(String author) {
69 this.author = author;
70 }
71 }
4.配置文件Classpath目录下命名为：fdfs_client.conf
charset=UTF-8
http.tracker_http_port=8888
tracker_server=ip:22122
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