spring boot 实现 前段上传图片，后台将图片转存的前台服务器(FTPClient)

最近做一个增加产品的接口，需要上传图片到前台路径下就通过前台FTPClient实现后台将文件转存到前台服务器路径下，

public String hostname = “hxxxxxxxxxxx”;
//ftp服务器端口号默认为21
public Integer port = 21 ;
//ftp登录账号
public String username = “xxxxxxx”;
//ftp登录密码
public String password = “xxxxxxx”;

public FTPClient ftpClient = null;

/**
* 初始化ftp服务器
*/
public void initFtpClient() {
ftpClient = new FTPClient();
ftpClient.setControlEncoding(“utf-8”);
try {
System.out.println(“connecting…ftp服务器:”+this.hostname+”:”+this.port);
ftpClient.connect(hostname, port); //连接ftp服务器
ftpClient.login(username, password); //登录ftp服务器
int replyCode = ftpClient.getReplyCode(); //是否成功登录服务器
if(!FTPReply.isPositiveCompletion(replyCode)){
System.out.println(“connect failed…ftp服务器:”+this.hostname+”:”+this.port);
}
System.out.println(“connect successfu…ftp服务器:”+this.hostname+”:”+this.port);
}catch (MalformedURLException e) {
e.printStackTrace();
}catch (IOException e) {
e.printStackTrace();
}
}
public boolean uploadFile( String pathname, String fileName,InputStream inputStream){
boolean flag = false;
try{
System.out.println(“开始上传文件”);
initFtpClient();
ftpClient.setFileType(ftpClient.BINARY_FILE_TYPE);
CreateDirecroty(pathname);
ftpClient.makeDirectory(pathname);
ftpClient.changeWorkingDirectory(pathname);
ftpClient.storeFile(fileName, inputStream);
inputStream.close();
ftpClient.logout();
flag = true;
System.out.println(“上传文件成功”);
}catch (Exception e) {
System.out.println(“上传文件失败”);
e.printStackTrace();
}finally{
if(ftpClient.isConnected()){
try{
ftpClient.disconnect();
}catch(IOException e){
e.printStackTrace();
}
}
if(null != inputStream){
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return true;
}

controlls层实现:

@ApiOperation(value = “获取产品列表”, notes = “获取产品列表”)
@GetMapping(“/selectProduct”)
public List selectProduct()
{
return productService.selectInfo();
}
@ApiOperation(value = “新增产品”, notes = “新增产品”)
@PostMapping(“/InsertProduct”)
public String InsertProduct(@RequestParam MultipartFile file, @RequestParam String ProductName, @RequestParam String ProductInfo)
{
try {
File dir = new File(“upload/”);
if(!dir.exists()) {
dir.mkdir();
}
String path = “upload/”+ file.getOriginalFilename();
// File tempFile = null;tempFile = new File(path);
//file.transferTo(tempFile);
FileUtil.uploadFile(file.getBytes(), “upload/”, file.getOriginalFilename());
String ArmfilePath = “/htdocs/images”;
FTPUtil obj = new FTPUtil();
obj.uploadFile(ArmfilePath,file.getOriginalFilename(),new FileInputStream(path));
File deletefile = new File(path);
deletefile.delete();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
Product obj = new Product();
obj.setName(ProductName);
obj.setInfo(ProductInfo);
obj.setFilepath(“images/” + file.getOriginalFilename());
productService.insertInfo(obj);
return “OK”;
}
先上传到临时文件，再将文件上传到FTP路径下。

public class FileUtil {
public static void uploadFile(byte[] file, String filePath, String fileName) throws Exception {
File targetFile = new File(filePath);
if(!targetFile.exists()){
targetFile.mkdirs();
}
FileOutputStream out = new FileOutputStream(filePath+fileName);
out.write(file);
out.flush();
out.close();
}
}