用Java写个ftp传输类实现文件的上传和下载，用ikvmc转成dll

package com.wjy.ftp.transmission;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.StringBufferInputStream;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;

public class FtpTransmission {
private String serverUrl=null;
private String userName=null;
private String password=null;
private String storePath=null;
private int port=0;

public FtpTransmission(String serverUrl, String userNameString,
String password, String storePath, int port) {
super();
this.serverUrl = serverUrl;
this.userName = userNameString;
this.password = password;
this.storePath = storePath;
this.port = port;
}

public String getServerUrl() {
return serverUrl;
}

public void setServerUrl(String serverUrl) {
this.serverUrl = serverUrl;
}

public String getUserNameString() {
return userName;
}

public void setUserNameString(String userNameString) {
this.userName = userNameString;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public String getStorePath() {
return storePath;
}

public void setStorePath(String storePath) {
this.storePath = storePath;
}

public int getPort() {
return port;
}

public void setPort(int port) {
this.port = port;
}

/**
* Description:实现ftp的文件上传
* @author 王吉元
* @Version 1.0 Dec 16,2013
* @param fileName:上传的文件名称
* @param fileContent:文件的内容
* @return  成功返回ture,失败返回false
*/
public boolean fileUpLoad(String fileName,String contents){
boolean isSuccessed=false;
FTPClient ftpClient=new FTPClient();
StringBufferInputStream input=new StringBufferInputStream(contents);
try {
int reply=0;
ftpClient.connect(serverUrl,port);
ftpClient.login(userName, password);
reply=ftpClient.getReplyCode();
if(!FTPReply.isPositiveCompletion(reply)){
ftpClient.disconnect();
return isSuccessed;
}
ftpClient.changeWorkingDirectory(storePath);
ftpClient.storeFile(fileName, input);

input.close();
ftpClient.logout();
isSuccessed=true;
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}finally{
if(ftpClient.isConnected()){
try {
ftpClient.disconnect();
} catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
}
return isSuccessed;
}
/**
* Description:实现ftp的文件下载
* @author 王吉元
* @Version 1.0 Dec 16,2013
* @param fileName:下载的文件名称
* @param localPath:下载后保存在本地的路径
* @return  成功返回ture,失败返回false
*/
public boolean fileDownload(String fileName,String localPath){
boolean isSuccessed=false;
FTPClient ftpClient=new FTPClient();
try {
int reply=0;
ftpClient.connect(serverUrl,port);
ftpClient.login(userName, password);
reply=ftpClient.getReplyCode();
if(!FTPReply.isPositiveCompletion(reply)){
ftpClient.disconnect();
return isSuccessed;
}
ftpClient.changeWorkingDirectory(storePath);

FTPFile[] files=ftpClient.listFiles();
for(FTPFile file : files){
if(file.getName().equals(fileName)){
File localFile=new File(localPath+"/"+file.getName());
OutputStream outputStream=new FileOutputStream(localFile);

ftpClient.retrieveFile(file.getName(), outputStream);
outputStream.close();
}
}

ftpClient.logout();
isSuccessed=true;
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}finally{
if(ftpClient.isConnected()){
try {
ftpClient.disconnect();
} catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
}
return isSuccessed;
}
}

package com.wjy.main;

import java.io.File;
import java.io.FileInputStream;

import com.wjy.ftp.transmission.FtpTransmission;

public class TestMain {
//    public static void main(String args[]){
//        FtpTransmission ftpTransmission=new FtpTransmission("10.13.30.22", "wjy", "wjywjy", "./tools/", 21);
//        try {
//            StringBuilder stringBuilder=new StringBuilder();
//            FileInputStream fileInputStream=new FileInputStream(new File("E://testmodel.cld"));
//            int cc;
//            while((cc=fileInputStream.read())!=-1){
//                stringBuilder.append((char)cc);
//            }
//            System.out.println(stringBuilder);
//            boolean flag=ftpTransmission.fileUpLoad("testmodel.cld", stringBuilder.toString());
//            System.out.println(flag);
//        } catch (Exception e) {
//            // TODO: handle exception
//            e.printStackTrace();
//        }
//    }

public static void main(String args[]){
FtpTransmission ftpTransmission=new FtpTransmission("10.13.30.22", "wjy", "wjywjy", "./tools/", 21);
try {
boolean flag=ftpTransmission.fileDownload("ctest.txt","F://NB");
System.out.println(flag);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
}

using System;
using System.IO;
using System.Collections.Generic;
using System.Text;
using com.wjy.ftp.transmission;
namespace FTPTransJarTest
{
class Program
{
//static void Main(string[] args)
//{

//FtpTransmission ftpTransmission=new FtpTransmission("10.13.30.22", "wjy", "wjywjy", "./tools/", 21);
//try {
//    StringBuilder stringBuilder=new StringBuilder();
//    StreamReader file = new StreamReader("E://testmodel.cld");
//    int cc;
//    while((cc=file.Read())!=-1){
//        stringBuilder.Append((char)cc);
//    }
//    Boolean flag = ftpTransmission.fileUpLoad("ctest.cld",stringBuilder.ToString());
//    Console.Write(flag);
//} catch (Exception e) {
//    // TODO: handle exception
//    Console.Write(e.Message);
//}

//}

static void Main(string[] args)
{

FtpTransmission ftpTransmission = new FtpTransmission("10.13.30.22", "wjy", "wjywjy", "./tools/", 21);
try
{
Boolean flag = ftpTransmission.fileDownload("ctest.txt", "F://NB");
Console.Write(flag);
}
catch (Exception e)
{
// TODO: handle exception
Console.Write(e.Message);
}

}
}
}