知识点:前端
springBoot后端项目,接收前端框架传到的图片,把图片上传到ftp图片服务器上java
注意:在上传的过程当中可能回出现,能够建立文件夹,可是图片上传不了的问题;web
尝试了网上的不少方法,最后将filename改成全路径上传成功spring
1. pom.xml中引入依赖的包apache
<!-- 加入上传文件组件 -->
<!-- https://mvnrepository.com/artifact/commons-net/commons-net -->
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.3</version>
</dependency>
2.ftp上传工具类FtpFileUtil.java
package com.hand.hand.util;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import java.io.IOException;
import java.io.InputStream;
/**
* Created by nishuai on 2018/1/12.
*/
public class FtpFileUtil {
//ftp服务器ip地址
private static final String FTP_ADDRESS = "101.132.1.113";
//端口号
private static final int FTP_PORT = 21;
//用户名
private static final String FTP_USERNAME = "ftp";
//密码
private static final String FTP_PASSWORD = "123456";
//图片路径
private static final String FTP_BASEPATH = "/home/ftpadmin/health/images";
public static boolean uploadFile(String originFileName,InputStream input){
boolean success = false;
FTPClient ftp = new FTPClient();
ftp.setControlEncoding("GBK");
try {
int reply;
ftp.connect(FTP_ADDRESS, FTP_PORT);// 链接FTP服务器
ftp.login(FTP_USERNAME, FTP_PASSWORD);// 登陆
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return success;
}
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
ftp.makeDirectory(FTP_BASEPATH );
ftp.changeWorkingDirectory(FTP_BASEPATH );
ftp.storeFile(originFileName,input);
input.close();
ftp.logout();
success = true;
} catch (IOException e) {
e.printStackTrace();
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException ioe) {
}
}
}
return success;
}
}
3.controller层接口 FtpFileUploadController.java
package com.hand.hand.controller;import com.hand.hand.util.FtpFileUtil;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.*;import org.springframework.web.multipart.MultipartFile;import javax.servlet.http.HttpServletRequest;import java.io.IOException;import java.io.InputStream;/** * Created by nishuai on 2017/12/26. */@CrossOrigin@Controllerpublic class FtpFileUploadController { //ftp处理文件上传 @RequestMapping(value="/ftpuploadimg", method = RequestMethod.POST) public @ResponseBody String uploadImg(@RequestParam("file") MultipartFile file, HttpServletRequest request) throws IOException { String fileName = file.getOriginalFilename(); InputStream inputStream=file.getInputStream(); String filePath=null; Boolean flag=FtpFileUtil.uploadFile(fileName,inputStream); if(flag==true){ System.out.println("ftp上传成功!"); filePath=fileName; } return filePath; //该路径图片名称,前端框架可用ngnix指定的路径+filePath,便可访问到ngnix图片服务器中的图片 }}