分布式文件服务器FastDFS

  <!-- 文件上传组件 -->
        <dependency>
            <groupId>org.csource.fastdfs</groupId>
            <artifactId>fastdfs</artifactId>
        </dependency>

# connect timeout in seconds
# default value is 30s
connect_timeout=30

# network timeout in seconds
# default value is 30s
network_timeout=60

# the base path to store log files
base_path=/home/fastdfs

# tracker_server can ocur more than once, and tracker_server format is
#  "host:port", host can be hostname or ip address
tracker_server=192.168.200.128:22122

#standard log level as syslog, case insensitive, value list:
### emerg for emergency
### alert
### crit for critical
### error
### warn for warning
### notice
### info
### debug
log_level=info

# if use connection pool
# default value is false
# since V4.05
use_connection_pool = false

# connections whose the idle time exceeds this time will be closed
# unit: second
# default value is 3600
# since V4.05
connection_pool_max_idle_time = 3600

# if load FastDFS parameters from tracker server
# since V4.05
# default value is false
load_fdfs_parameters_from_tracker=false

# if use storage ID instead of IP address
# same as tracker.conf
# valid only when load_fdfs_parameters_from_tracker is false
# default value is false
# since V4.05
use_storage_id = false

# specify storage ids filename, can use relative or absolute path
# same as tracker.conf
# valid only when load_fdfs_parameters_from_tracker is false
# since V4.05
storage_ids_filename = storage_ids.conf


#HTTP settings
http.tracker_server_port=80

#use "#include" directive to include HTTP other settiongs
##include http.conf

 // 1、加载配置文件，配置文件中的内容就是 tracker 服务的地址。
        ClientGlobal.init("D:/maven_work/fastDFS-demo/src/fdfs_client.conf");
        // 2、创建一个 TrackerClient 对象。直接 new 一个。
        TrackerClient trackerClient = new TrackerClient();
        // 3、使用 TrackerClient 对象创建连接，获得一个 TrackerServer 对象。
        TrackerServer trackerServer = trackerClient.getConnection();
        // 4、创建一个 StorageServer 的引用，值为 null
        StorageServer storageServer = null;
        // 5、创建一个 StorageClient 对象，需要两个参数 TrackerServer 对象、StorageServer 的引用
        StorageClient storageClient = new StorageClient(trackerServer, storageServer);
        // 6、使用 StorageClient 对象上传图片。
        //扩展名不带“.”
        String[] strings = storageClient.upload_file("D:/pic/7.jpg", "jpg",
                null);
        // 7、返回数组。包含组名和图片的路径。
        for (String string : strings) {
            System.out.println(string);
        }

app.service("uploadService",function($http){
    
    this.uploadFile = function(){
        // 向后台传递数据:
        var formData = new FormData();
        // 向formData中添加数据:
        formData.append("file",file.files[0]);
        
        return $http({
            method:‘post‘,
            url:‘../upload/uploadFile.do‘,
            data:formData,
            headers:{‘Content-Type‘:undefined},// Content-Type : text/html  text/plain
            transformRequest: angular.identity
        });
    }
    
});

package cn.lqc.core.utils;

import org.csource.common.NameValuePair;
import org.csource.fastdfs.ClientGlobal;
import org.csource.fastdfs.StorageClient1;
import org.csource.fastdfs.StorageServer;
import org.csource.fastdfs.TrackerClient;
import org.csource.fastdfs.TrackerServer;

public class FastDFSClient {

    private TrackerClient trackerClient = null;
    private TrackerServer trackerServer = null;
    private StorageServer storageServer = null;
    private StorageClient1 storageClient = null;
    
    public FastDFSClient(String conf) throws Exception {
        if (conf.contains("classpath:")) {
            conf = conf.replace("classpath:", this.getClass().getResource("/").getPath());
        }
        ClientGlobal.init(conf);
        trackerClient = new TrackerClient();
        trackerServer = trackerClient.getConnection();
        storageServer = null;
        storageClient = new StorageClient1(trackerServer, storageServer);
    }
    
    /**
     * 上传文件方法
     * <p>Title: uploadFile</p>
     * <p>Description: </p>
     * @param fileName 文件全路径
     * @param extName 文件扩展名，不包含（.）
     * @param metas 文件扩展信息
     * @return
     * @throws Exception
     */
    public String uploadFile(String fileName, String extName, NameValuePair[] metas) throws Exception {
        String result = storageClient.upload_file1(fileName, extName, metas);
        return result;
    }
    
    public String uploadFile(String fileName) throws Exception {
        return uploadFile(fileName, null, null);
    }
    
    public String uploadFile(String fileName, String extName) throws Exception {
        return uploadFile(fileName, extName, null);
    }
    
    /**
     * 上传文件方法
     * <p>Title: uploadFile</p>
     * <p>Description: </p>
     * @param fileContent 文件的内容，字节数组
     * @param extName 文件扩展名
     * @param metas 文件扩展信息
     * @return
     * @throws Exception
     */
    public String uploadFile(byte[] fileContent, String extName, NameValuePair[] metas) throws Exception {
        
        String result = storageClient.upload_file1(fileContent, extName, metas);
        return result;
    }
    
    public String uploadFile(byte[] fileContent) throws Exception {
        return uploadFile(fileContent, null, null);
    }
    
    public String uploadFile(byte[] fileContent, String extName) throws Exception {
        return uploadFile(fileContent, extName, null);
    }
}

package cn.lqc.core.controller;

import cn.lqc.core.pojo.entity.Result;
import cn.lqc.core.utils.FastDFSClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

@RestController
@RequestMapping("/upload")
public class UploadController {

    //注入文件服务器地址,也就是linux服务器上的ip地址
    @Value("${FILE_SERVER_URL}")
    private String FILE_SERVER_URL;

    @RequestMapping("/uploadFile")
    public Result uploadFile(MultipartFile file){
        //1.获取文件扩展名
        String originalFilename = file.getOriginalFilename();
        String extName = originalFilename.substring(originalFilename.lastIndexOf(".")+1);

        try{
            //1.创建FastDFS客户端
            FastDFSClient fastDFSClient = new FastDFSClient("classpath:fastDFS/fdfs_client.conf");
            //在工具类执行上传，返回一个文件路径
            String path = fastDFSClient.uploadFile(file.getBytes(), extName);
            //返回给前台的地址：文件服务器地址+在服务器中的地址
            String image_entity_url = FILE_SERVER_URL +path;
            return new Result(true,image_entity_url);

        }catch(Exception ex){
            ex.printStackTrace();
            return new Result(false,"上传失败");
        }
    }
}