JNAの使用例．　JNAはjavaから簡単にnativeライブラリを呼び出すためのツール．　内部でJNIを使っている

jna test

this is title

CsDllHandler.java

class CsDllHandler {
    public interface IKeywordRun extends Library {
        public String KeywordRun(String action, String xpath, String inputData,
                                 String verifyData);
        public java.lang.String testtest(Pointer p);
    }

    private static IKeywordRun INSTANCE =(IKeywordRun) Native.loadLibrary(
            "sumi2", IKeywordRun.class);

    public void runDllMethod(String action, String xpath, String inputData,
                             String verifyData) {
        /*NativeLibrary.addSearchPath("sumi",
        "${projectPath}/bin/x64/Debug");*/

        String csResult = INSTANCE.KeywordRun(action, xpath, inputData,
                verifyData);
        int a[] = new int[2];
        a[0] = 100;
        a[1] = 500;
        Pointer p = new Memory(Native.getNativeSize(int.class)*a.length);
        p.write(0, a, 0, a.length);
        String res = INSTANCE.testtest(p);
        System.out.println(csResult);
        System.out.println(res);
    }
}

gistfile1.txt

aa

gradle.build

//for jna
plugins {
    id 'java' // or 'groovy' Must be explicitly applied
    id 'com.github.johnrengelman.shadow' version '1.2.3'    //for shadowJar
    id 'application'    //必須
}
group 'tst'
version '1.0-SNAPSHOT'

sourceCompatibility = 1.8
mainClassName = 'Main'

repositories {
    mavenCentral()
}

dependencies {
    compile 'net.java.dev.jna:jna:4.2.1'
    testCompile group: 'junit', name: 'junit', version: '4.11'
}
tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8'
}

jnatest.java

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Platform;

/**
 * Created by s-sumi on 2016/03/15.
 */
public class Main {
    String picPath="CcEZ9FCUYAEcGrL.jpg";
    public interface CLibrary extends Library {
        CLibrary INSTANCE = (CLibrary)Native.loadLibrary((Platform.isWindows()) ? "msvcrt" : "c", CLibrary.class);
        void printf(byte[] format, Object... args);//byte[]として使えば全角文字も扱える．stringをbyte[]で置き換え可能っぽい？
    }

    public static void main(String[] args) throws Exception{
        char[] s=new char[100];
        String str="Clibrary-Ａ";
        str.getChars(0,str.length()-1,s,0);
        CLibrary.INSTANCE.printf(str.getBytes());

    }
}

最初にスペースを入れたファイルを作るとタイトルになるのか・・