jni4net调用net库

分手后的思念是犯贱 2022-12-11 09:22 223阅读 0赞

# 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**

usage: proxygen.exe path\\to\\<config>.xml  
usage: proxygen.exe path\\to\\<library>.jar -wd work\\directory -cp java\\dependencies;comma\\separated;classpath -dp .NET\\dependencies;comma\\separated;assemblies  
usage: proxygen.exe path\\to\\<library>.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_java_c_dll]
 *  [jni4net 实现 c\# 调用 java jar包][jni4net _ c_ _ java jar]
 *  [jni4net调用net库][jni4net_net]

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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
        }
    }

[jni4net_java_c_dll]: https://www.jianshu.com/p/68c64845f87f
[jni4net _ c_ _ java jar]: https://blog.csdn.net/lihuioooo/article/details/80452696
[jni4net_net]: https://blog.csdn.net/HaQiaME/article/details/101058395