public static boolean uploadFile(
String hostname,    int port, String username, String password, String pathname,  String remote,InputStream local) {    boolean flag=false;      try{  //创建 FtpClient 对象  FTPClient client=new FTPClient();   //建立和 ftp服务器的链接   client.connect(hostname, port); //登陆 ftp服务器   client.login(username, password);
//设置上传的文件的类型   client.setFileType(FTP.BINARY_FILE_TYPE);  //切换工作目录，文件上传后保存到那个目录
if(!client.changeWorkingDirectory(pathname)){   if(client.makeDirectory(pathname)){
client.changeWorkingDirectory(pathname);    }    }     local=new FileInputStream("D:/pic/1.jpg"); //实现文件上传   client.storeFile(remote, local);  local.close();        client.logout();  client.disconnect();    flag=true;     }catch(Exception ex){   ex.printStackTrace();  }    return flag;    } 

package com.bjsxt.ego.beans;/***  * 封装上传图片之后的返回结果  * **/
public class PictureResult { private Integer error;
//状态  1 失败  0 成功  private String url; //
上传图片后，图片在服务器的 url  private String message;
//响应到客户端的提示消息 public Integer getError() {
return error;
} public void setError(Integer error) {  this.error = error;  }
public String getUrl() {  return url; }  public void setUrl(String url) {this.url = url;}  public String getMessage() { return message;
}  public void setMessage(String message) {  this.message = message;  }     } 

FTP_HOST=192.168.30.30FTP_PORT=21
FTP_USERNAME=ftpuser FTP_PASSWORD=ftpuser
FTP_PATH=/home/ftpuser/jd
IMAGE_HTTP_PATH=http://image.taotao.com/jd 

//通过 spring 的 EL表达式注入 ftp信息 @Value("${FTP_HOST}")  private String FTP_HOST;  @Value("${FTP_PORT}")
private Integer FTP_PORT; @Value("${FTP_USERNAME}") private String FTP_USERNAME;
@Value("${FTP_PASSWORD}")
private String FTP_PASSWORD; @Value("${FTP_PATH}") private String FTP_PATH; @Value("${IMAGE_HTTP_PATH}") private String IMAGE_HTTP_PATH;
@Override
public PictureResult uploadItemPic(MultipartFile file) { // TODO Auto-generated method stub boolean flag=false;   String fileName=null;   try{ //获得信息的文件名字   fileName=IDUtils.genImageName();
//获得上传的文件的原始名字
String oriName = file.getOriginalFilename();  //获得文件扩展名
String ext=oriName.substring(oriName.lastIndexOf("."));       fileName=fileName+ext;      InputStream local = file.getInputStream();   //实现文件上传到ftp   flag=FtpUtils.uploadFile(FTP_HOST, FTP_PORT, FTP_USERNAME, FTP_PASSWORD,   FTP_PATH, fileName, local);         }catch(Exception ex){    ex.printStackTrace();  flag=false;   }      PictureResult result=null;
if(flag){    result=new PictureResult();result.setError(0); result.setUrl(IMAGE_HTTP_PATH+"/"+fileName);  result.setMessage("ok");   }else{  result=new PictureResult();    result.setError(1); result.setUrl("url"); result.setMessage("error");
}  return result;
} 

package com.bjsxt.ego.manager.controller; import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile; import com.bjsxt.ego.beans.PictureResult;
import com.bjsxt.ego.manager.service.ManagerItemService; @Controller
public class ItemImageController { //注入service @Autowired private ManagerItemService managerItemService; /**   * 处理图片上传请求 * ***/ @Request
Mapping(value="pic/upload",produces=MediaType. APPLICATION_JSON_VAL UE +";charset=UTF-8") @ResponseBody public PictureResult picUpload(MultipartFile uploadFile){ return managerItemService.uploadItemPic(uploadFile); }}