<?xml version="1.0" encoding="UTF-8"?>
"http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0

    org.example
    jna_test
    1.0-SNAPSHOT
    
        
            net.java.dev.jna
            jna
            5.3.1
        
    

public class JnaTest {
    public static void main(String[] args) {
        MsvcrtLibrary.INSTANCE.printf("Hello, World\n");
    }
}

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

public interface MsvcrtLibrary extends Library {
    //加载动态库
    MsvcrtLibrary INSTANCE = Native.load("msvcrt", MsvcrtLibrary.class);

    void printf(String format, Object... args);
}

Default Type Mappings

Java primitive types (and their object equivalents) map directly to the native C type of the same size.

Unsigned types use the same mappings as signed types. C enums are usually interchangeable with "int".