1. Create a new script and name it "FTPUpDown". Copy and paste the following code.
using System;
using System.IO;
using System.Net;
using UnityEngine;
public class FTPUpDown : MonoBehaviour
{
// 根据FTP用户名和密码创建的网络凭据
private NetworkCredential networkCredential;
[Header("FTP的IP路径")]
[Tooltip("注意：端口号默认为21；")]
[SerializeField]
private string FTPIpPath = "ftp://0.0.0.0:21/";
[Header(" FTP用户名")]
[SerializeField]
private string UserName = "abc";
[Header(" FTP密码")]
[SerializeField]
private string Password = "000000";
[Header("FTP的文件夹路径")]
[SerializeField]
[Tooltip("注意：IP后接的是“/www/wwwroot/”其下的FTP目录；")]
private string FTPFolderPath = "file";
//总的路径
private string FTPPath
{
get {
return FTPIpPath + FTPFolderPath; }
}
public static FTPUpDown a;
private void Awake()
{
a = this;
CreatNetworkCredential();
}
//根据用户名密码创建 “网络凭据”
private void CreatNetworkCredential()
{
networkCredential = new NetworkCredential(UserName, Password);
}
/// <summary>
/// FTP上传 注意设置FTP权限
/// </summary>
/// <param name="LoadFilePath">本地文件的路径</param>
/// <param name="FTPPath">要上传到的FTP文件夹路径</param>
private bool UpLoadFile(string LoadFilePath, string FTPPath)
{
FileInfo fileInfo = new FileInfo(LoadFilePath);
FtpWebRequest request = CreateFtpWebRequest(FTPPath + Path.GetFileName(LoadFilePath), WebRequestMethods.Ftp.UploadFile);
int buffLength = 2048;//一次要读取和写入多少个字节
byte[] buff = new byte[buffLength];//写入的字节
int contentLen;
FileStream fs = fileInfo.OpenRead();//读取文件，将文件转换成字节文件
Stream strm = request.GetRequestStream();
try
{
contentLen = fs.Read(buff, 0, buffLength);//读取文件2048个字节，偏移为0，并赋值给buff字节组；
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen); //重点方法，将流写入
contentLen = fs.Read(buff, 0, buffLength);
}
fs.Close();
strm.Close();
}
catch (Exception ex)
{
return false;
throw new Exception(ex.Message);
}
return true;
}
/// <summary>
/// FTP下载 注意设置FTP权限
/// </summary>
/// <param name="FTPFilePath">要下载的FTP文件的路径</param>
/// <param name="LoadPath">本地文件夹的路径</param>
private bool DownloadFile(string FTPFilePath, string LocalPath)
{
try
{
FtpWebRequest request = CreateFtpWebRequest(FTPFilePath, WebRequestMethods.Ftp.DownloadFile);
FtpWebResponse response = GetFtpResponse(request);
FileStream filestream = File.Create(LocalPath + Path.GetFileName(FTPFilePath));
Stream responseStream = response.GetResponseStream();
int buflength = 2048;
byte[] buffer = new byte[buflength];
int bytesRead;
bytesRead = responseStream.Read(buffer, 0, buflength);
while (bytesRead != 0)
{
filestream.Write(buffer, 0, bytesRead);
bytesRead = responseStream.Read(buffer, 0, buflength);
}
responseStream.Close();
filestream.Close();
}
catch (WebException ex)
{
return false;
throw new Exception(ex.Message);
}
return true;
}
#region 与服务器的交互
//创建FTP连接
public FtpWebRequest CreateFtpWebRequest(string uri, string requestMethod)
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(uri);
request.Credentials = networkCredential;
request.KeepAlive = true;//请求完成后是否保持活动状态，不断开连接
request.UseBinary = true;//指示服务器要传输的二进制数据
request.UsePassive = true;//被动
request.Method = requestMethod;
return request;
}
// 获取服务器返回的响应体
public FtpWebResponse GetFtpResponse(FtpWebRequest request)
{
FtpWebResponse response = null;
try
{
response = (FtpWebResponse)request.GetResponse();
return response;
}
catch (WebException ex)
{
throw new Exception("Ftphelper Upload Error --> " + ex.Message);
}
}
#endregion
//P————————————————————————————————————————————————
/// <summary>
/// 下载文件，或上传文件到XML文件夹
/// </summary>
[Header("要上传或下载的StreamingAssets文件夹下的文件名称")]
public string FileName = "User.xml";
[ContextMenu("下载到StreamingAssets文件夹下")]
public void DownXMLToStreaming()
{
if (!System.IO.Directory.Exists(Application.streamingAssetsPath))
{
Directory.CreateDirectory(Application.streamingAssetsPath);
UnityEditor.AssetDatabase.Refresh();
}
DownloadFile(FTPPath + FileName, Application.streamingAssetsPath);
UnityEditor.AssetDatabase.Refresh();
print("下载完成！");
}
[ContextMenu("上传到FTP服务器")]
public void UpLoadXML()
{
if (!System.IO.Directory.Exists(Application.streamingAssetsPath))
{
Directory.CreateDirectory(Application.streamingAssetsPath);
UnityEditor.AssetDatabase.Refresh();
Debug.LogError("没有文件");
return;
}
if (!File.Exists(Application.streamingAssetsPath + "/" + FileName))
{
Debug.LogError("没有文件");
return;
}
UpLoadFile(Application.streamingAssetsPath + "/" + FileName, FTPPath);
print("上传完成！");
}
}
2. Create a new StreamingAssets folder, the file downloaded by FTP will appear in this directory; uploading also needs to put the file here. Hang the script on any object, after configuring the script variables, right-click the script to test, if there is a problem, take a closer look at the prompt description of the script variable, I have nothing wrong with the test here!
