将java代码转换为.NET DLL

本文介绍了将java代码转换为.NET DLL的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要将下面的Java脚本代码转换为DLL链接到Vb.Net应用程序可以帮助我。 package sage300 ; import java.io.FileInputStream; import java.io.FileOutputStream; import java。 io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.crypto.Cipher; import javax.crypto.CipherInputStream; import javax.crypto.CipherOutputStream; import javax.crypto。 SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; public class EncryptTTUM { public static void main（String [] args）{ try { String key =balaji23; // DES需要至少8个字符 if（args.length == 1） { String fileName = args [ 0]; System.out.println（加密+ fileName）; 字符串encFileName = args [0] +。enc; FileInputStream fis = new FileInputStream（fileName）; FileOutputStream fos = new FileOutputStream（encFileName）; 加密（密钥，fis，fos）; System.out.println（加密文件名+ encFileName）; } 其他 { System.out.println（无效的命令行参数）; } } catch（Throwable e）{ e.printStackTrace（）; } } public static void encrypt （String key，InputStream is，OutputStream os）抛出Throwable { encryptOrDecrypt（key，Cipher.ENCRYPT_MODE，is，os）; } public static void decrypt（String key，InputStream is，OutputStream os）抛出Throwable { encryptOrDecrypt（key，Cipher.DECRYPT_MODE，is，os）; } public static void encryptOrDecrypt（String key，int mode，InputStream is，OutputStream os）抛出Throwable { DESKeySpec dks = new DESKeySpec（key.getBytes（））; SecretKeyFactory skf = SecretKeyFactory.getInstance（DES）; Sec retKey desKey = skf.generateSecret（dks）; Cipher cipher = Cipher.getInstance（DES）; //用于SunJCE的DES / ECB / PKCS5Padding if（mode == Cipher.ENCRYPT_MODE）{ cipher.init（Cipher.ENCRYPT_MODE） ，desKey）; CipherInputStream cis = new CipherInputStream（is，cipher）; doCopy（cis，os）; }否则如果（ mode == Cipher.DECRYPT_MODE）{ cipher.init（Cipher.DECRYPT_MODE，desKey）; CipherOutputStream cos = new CipherOutputStream（os，cipher）; doCopy（是，cos）; } } public static void doCopy（ InputStream是，OutputStream os）抛出IOException { byte [] bytes = new byte [64]; int numBytes; while（（ numBytes = is.read（bytes））！= -1）{ os.write（bytes，0，numBytes）; } os.flush（）; os.close（）; is.close（）; } } 我的尝试： 我尝试过使用Code在WIndows中转换和Jsc消除了编译给出的错误， 我在.Net中使用Crypto尝试了DES。转换后有转换的差异，转换后。 Net和它不会从Java中提取，所以我需要上面的代码转换为DLL插件作为我的VB项目的引用。

解决方案

过去那里有一种叫做 Visual J＃的东西，虽然它已经停产，但它仍然可以下载它： Visual J＃Home [ ^ ]

I need the below Code of java Script to be Converted to a DLL to be linked to a Vb.Net Application Can Some One Help me. package sage300; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.crypto.Cipher; import javax.crypto.CipherInputStream; import javax.crypto.CipherOutputStream; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; public class EncryptTTUM { public static void main(String[] args) { try { String key = "balaji23"; // needs to be at least 8 characters for DES if(args.length == 1) { String fileName = args[0]; System.out.println("Encrypting "+fileName); String encFileName = args[0]+".enc"; FileInputStream fis = new FileInputStream(fileName); FileOutputStream fos = new FileOutputStream(encFileName); encrypt(key, fis, fos); System.out.println("Encrypted File Name "+encFileName); } else { System.out.println("Invalid no of Command Line Arguments"); } } catch (Throwable e) { e.printStackTrace(); } } public static void encrypt(String key, InputStream is, OutputStream os) throws Throwable { encryptOrDecrypt(key, Cipher.ENCRYPT_MODE, is, os); } public static void decrypt(String key, InputStream is, OutputStream os) throws Throwable { encryptOrDecrypt(key, Cipher.DECRYPT_MODE, is, os); } public static void encryptOrDecrypt(String key, int mode, InputStream is, OutputStream os) throws Throwable { DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory skf = SecretKeyFactory.getInstance("DES"); SecretKey desKey = skf.generateSecret(dks); Cipher cipher = Cipher.getInstance("DES"); // DES/ECB/PKCS5Padding for SunJCE if (mode == Cipher.ENCRYPT_MODE) { cipher.init(Cipher.ENCRYPT_MODE, desKey); CipherInputStream cis = new CipherInputStream(is, cipher); doCopy(cis, os); } else if (mode == Cipher.DECRYPT_MODE) { cipher.init(Cipher.DECRYPT_MODE, desKey); CipherOutputStream cos = new CipherOutputStream(os, cipher); doCopy(is, cos); } } public static void doCopy(InputStream is, OutputStream os) throws IOException { byte[] bytes = new byte[64]; int numBytes; while ((numBytes = is.read(bytes)) != -1) { os.write(bytes, 0, numBytes); } os.flush(); os.close(); is.close(); } } What I have tried: I have tried using Code Convert and Jsc in WIndows which drops out the Compilation Giving Errors , I tried the DES using Crypto in .Net Which has difference in the convertion, Once you Convert from .Net and it Wont Extract from Java, So i need this above Code to Convert to a DLL to plug as a reference to my VB project.

解决方案

In the past there was something called Visual J#, and although it is discontinued it might be possible to still download it: Visual J# Home[^]