jni4net调用net库

步骤

1、先生成目标dll库（例如MesCommonLib.dll） 2、下载jni4net-0.8.8.0-bin， 在其bin目录下，控制台执行：

• ./proxygen.exe .\MesCommonLib.dll -wd .\folder -cp .\dependence1.dll .\dependence2.dll
  • -wd 是指导输出目录
  • -cp 指定目标jar依赖的jar包，多个依赖用“；”号隔开。目标jar依赖的dll库用 空格隔开

3、在.\folder路径下双击build.exe，正常情况下会产生一个MesCommonLib.j4n.dll和一个MesCommonLib.j4n.jar 4、将jni4net.n-0.8.8.0.dll，Jni4NetDll.dll，jni4net.n.w64.v40-0.8.8.0.dll（四个全部），MesCommonLib.dll，MesCommonLib.j4n.dll等库及其依赖库复制到java项目根目录下 5、java项目添加jar包jni4net.j-0.8.8.0.jar，MesCommonLib.j4n.jar 6      java代码         Bridge.setVerbose(true);         Bridge.init();         File loadDll = new File("MesCommonLib.j4n.dll");         Bridge.LoadAndRegisterAssemblyFrom(loadDll);         CBarcodePrinter test = new CBarcodePrinter(null); 7、测试

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 jni4net的帮助

输入：  .\proxygen.exe -h

jni4net.proxygen - Copyright (C) 2009 Pavel Savara - licensed under GPLv3

usage: proxygen.exe path\to\.xml usage: proxygen.exe path\to\.jar -wd work\directory -cp java\dependencies;comma\separated;classpath -dp .NET\dependencies;comma\separated;assemblies usage: proxygen.exe path\to\.dll -wd work\directory -cp java\dependencies;comma\separated;classpath -dp .NET\dependencies;comma\separated;assemblies

参考

• 如何使用jni4net实现java调用c#的dll
• jni4net 实现 c# 调用 java jar包
• jni4net调用net库

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使用命令备份：

将要转换的目标的dll,以及依赖的dll，赋值到目录 jni4net-0.8.8.0-bin\bin\ 下，然后在此目录下cmd窗口执行如下命令，生成 folder_SI_1.3文件夹

.\proxygen.exe .\SusceptibilityIndexCalculation1.3.dll -wd .\folder_SI_1.3 -cp .\cairo.dll .\cfitsio.dll .\expat.dll .\freexl.dll .\fribidi.dll .\gdal202.dll .\gdalconst_csharp.dll .\gdalconst_wrap.dll .\gdal_csharp.dll .\gdal_wrap.dll .\geos.dll .\geos_c.dll .\hdf5.dll .\hdf5_cpp.dll .\hdf5_hl.dll .\hdf5_hl_cpp.dll .\hdfdll.dll .\iconv.dll .\libcurl.dll .\libeay32.dll .\libecwj2.dll .\libfcgi.dll .\libkea.dll .\libmysql.dll .\libpq.dll .\libtiff.dll .\libxml2.dll .\lti_dsdk_9.5.dll .\lti_lidar_dsdk_1.1.dll .\mapserver.dll .\mfhdfdll.dll .\msplugin_mssql2008.dll .\msplugin_oracle.dll .\msvcp140.dll .\NCSEcw.dll .\netcdf.dll .\ogr_csharp.dll .\ogr_wrap.dll .\openjp2.dll .\osr_csharp.dll .\osr_wrap.dll .\proj.dll .\spatialite.dll .\sqlite3.dll .\ssleay32.dll .\szip.dll .\tbb.dll .\vcruntime140.dll .\xdrdll.dll .\xerces-c_3_1.dll .\zlib1.dll .\Meta.Numerics.dll

生成的文件夹 folder_SI_1.3下，生成 两个文件：SusceptibilityIndexCalculation1.3.j4n.dll 和 SusceptibilityIndexCalculation1.3.j4n.jar

.\build.cmd

将 要转换的目标的dll、以及依赖的dll、SusceptibilityIndexCalculation1.3.j4n.dll、SusceptibilityIndexCalculation1.3.j4n.jar，复制到java项目的lib文件夹下，

在Java Build Path -> Libraries 中，点击 Add External JARS,  添加jar下面两个包：a. FrequencyRatiosCaculation.j4n.jar b. jni4net.j-0.8.8.0.jar。使用如下代码即可调用c# dll中 public 的接口了

import net.sf.jni4net.Bridge;
import alsa.ALSACalSIConverter; # c# dll中 public的类
public class InvokeTest {
	
	public static void main(String ards[]) throws IOException
	{
		//invoke c# dll
        Bridge.setVerbose(true);
        Bridge.init();
        File loadDll = new File("lib/SusceptibilityIndexCalculation1.3.j4n.dll");
        Bridge.LoadAndRegisterAssemblyFrom(loadDll);
    
       //TODO something
    }
}