How to call external dll function from java code

I need to call external DLL library function from Java code. I use Netbeans 7.2. My dll's functions are: Boolean isValid(string word) List<String> getWords(String word) I'm following this example. But I don't know how declare my dll functions. And I found another link. But it doesn't work for me. I stumbled upon the same problem of "calling DLL from Java&quo

如何从java代码中调用外部dll函数

我需要从Java代码调用外部DLL库函数。 我使用Netbeans 7.2。 我的DLL的功能是: Boolean isValid(string word) List<String> getWords(String word) 我正在关注这个例子。 但我不知道如何声明我的dll函数。 我找到了另一个链接。 但它不适合我。 我偶然发现了“从Java调用DLL”的相同问题,并首先对复杂性感到沮丧。 然而,有一个优雅的解决方案(对于那些处于加工站的生境中的人来说也可能是有趣的。)考虑到

How do you bind a language (python, for example) to another (say, C++)?

I'm far from a python expert but I hear this one all the time, about its C/C++ bindings. How does this concept work, and how does Python (and Java) bind to C-based APIs like OpenGL? This stuff has always been a mystery to me. Interpreters Written in C89 with Reflection, Who Knew? I have a feeling you are looking for an explanation of the mechanism and not a link to the API or instructio

你如何将一种语言(例如Python)绑定到另一种语言(比如说C ++)?

我远离Python专家,但我始终听到这个,关于它的C / C ++绑定。 这个概念如何工作,以及Python(和Java)如何绑定到像OpenGL这样的基于C的API? 这对我来说一直是个谜。 C89与反思写的口译员,谁知道? 我有一种感觉,你正在寻找解释的机制,而不是一个链接到API或说明如何编码。 所以,据我了解。 。 。 主要的解释器通常用C编写,并且是动态链接的。 在动态链接的环境中,即使C89也有一定的反射行为。 特别是, dl

why the currentThread method does NOT have the method BODY?

This question already has an answer here: What is the native keyword in Java for? 11 answers native关键字声明这个方法实现是内部的,而不是Java,但是依赖于平台的代码。

为什么currentThread方法没有方法BODY?

这个问题在这里已经有了答案: Java中的native关键字是什么? 11个答案 native关键字声明这个方法实现是内部的,而不是Java,但是依赖于平台的代码。

A method with no statements inside and ends with a semicolon

This question already has an answer here: What is the native keyword in Java for? 11 answers That's a declaration for a native method, indicated by the native modifier, as explained in the Java Language Specification, section §8.4.3.4 native Methods . You won't find its implementing code in Java, it's referring to code that's either in the C libraries that are part of the i

内部没有语句并以分号结尾的方法

这个问题在这里已经有了答案: Java中的native关键字是什么? 11个答案 这是本地方法的一个声明,由native修饰符指示,如Java语言规范,第8.4.3.4节native方法中所述。 您不会在Java中找到它的实现代码,它指的是C库中的代码,这些代码是正在使用的JDK实现的一部分,或者是您正在学习的代码捆绑的本地库的一部分。 请参阅JNI文档以了解如何从Java程序调用它。 Java中的native关键字表示该方法是用另一种语言编写的。

what is difference between Java Method And Native Method?

This question already has an answer here: What is the native keyword in Java for? 11 answers A Java method is generically a code block with a name that you can write using plain java. public void method() { System.out.println("I'm a java method!"); } A native method is a method that is linked to a native library. Native libraries are linked to a java program through JNI (Java Native I

Java方法和本地方法有什么区别?

这个问题在这里已经有了答案: Java中的native关键字是什么? 11个答案 Java方法通常是一个可以使用普通Java编写的名称的代码块。 public void method() { System.out.println("I'm a java method!"); } 本地方法是链接到本地​​库的方法。 本地库通过JNI(Java Native Interface)或JNA(Java Native Access)连接到Java程序,本机方法如下所示: public native void method(); 这只是一个声明,因为方法实现是在

Usage of native in Java

This question already has an answer here: What is the native keyword in Java for? 11 answers In my experience, the downsides of using native code libraries are significant: JNI / JNA have a tendency to destabilize the JVM, especially if you try to do something complicated. If your native code gets native code memory management wrong, there's a chance that you will crash the JVM. If y

在Java中使用native

这个问题在这里已经有了答案: Java中的native关键字是什么? 11个答案 根据我的经验,使用本地代码库的缺点是很重要的: JNI / JNA倾向于破坏JVM的稳定性,特别是如果你尝试做一些复杂的事情。 如果您的本机代码导致本机代码内存管理错误,那么您有可能会导致JVM崩溃。 如果你的本地代码是不可重入的并且被多个Java线程调用,那么不好的事情将会偶尔发生。 等等。 使用本机代码的Java比纯Java或纯C / C ++更难以调

What are native methods in Java and where should they be used?

This question already has an answer here: What is the native keyword in Java for? 11 answers What are native methods in Java and where should they be used? Once you see a small example, it becomes clear: Main.java : public class Main { public native int intMethod(int i); public static void main(String[] args) { System.loadLibrary("Main"); System.out.println(new M

Java中的本地方法是什么以及它们应该用在哪里?

这个问题在这里已经有了答案: Java中的native关键字是什么? 11个答案 Java中的本地方法是什么以及它们应该用在哪里? 一旦你看到一个小例子,就会明白: Main.java : public class Main { public native int intMethod(int i); public static void main(String[] args) { System.loadLibrary("Main"); System.out.println(new Main().intMethod(2)); } } Main.c : #include <jni.

Android SQLite SUM, throws NullPointer

so I am working on an app, and I just started learning SQLite for android, apparently I am stuck for 3 days now on one problem. Whenever I try to run query to SUM Up fields from table where month is equal to specific month, I get NullPointer thrown. package com.example.droid; import java.text.SimpleDateFormat; import java.util.Calendar; import com.example.droid.SqDb; import android.accounts.A

Android SQLite SUM引发NullPointer

所以我正在研究一个应用程序,并且我刚刚开始学习Android的SQLite,显然我在一个问题上停留了3天。 每当我尝试运行查询以SUM月份等于特定月份的表中的字段时,我得到NullPointer抛出。 package com.example.droid; import java.text.SimpleDateFormat; import java.util.Calendar; import com.example.droid.SqDb; import android.accounts.Account; import android.content.ContentValues; import android.content.Context;

Android inflater exception FileNotFound

After I installed ACRA I started to get all kinds of crash reports. Most makes sense and I fix them as I go. But this one doesn't make much sense to me. This is version running on hundreds of devices - this error happened on this device multiple times within time period and now seems to be fine. I can't reproduce it. res/drawable-mdpi/tire.png indeed exists. This is "glitch

Android inflater例外FileNotFound

在我安装ACRA后,我开始获得各种崩溃报告。 大部分都是有道理的,我会在我去的时候修复它们 但是这对我来说没有多大意义。 这是在数百个设备上运行的版本 - 此错误在此设备上多次出现,现在似乎没有问题。 我无法复制它。 res / drawable-mdpi / tire.png确实存在。 这是一个“小故障”类型的异常,但我想知道是否有办法处理这个问题,也许别人看到这个堆栈跟踪不同。 编辑: 我有2个构造函数(不知道如何调试这些)

Android using jaudiotagger

I try to use jaudiotagger like this but it crashes Main app.java : import java.io.File; import java.io.IOException; import org.jaudiotagger.audio.AudioFile; import org.jaudiotagger.audio.AudioFileIO; import org.jaudiotagger.audio.AudioHeader; import org.jaudiotagger.audio.exceptions.CannotReadException; import org.jaudiotagger.audio.exceptions.CannotWriteException; import org.jaudiotagger.aud

Android使用jaudiotagger

我尝试像这样使用jaudiotagger,但它崩溃 主app.java:import java.io.File; import java.io.IOException; import org.jaudiotagger.audio.AudioFile; import org.jaudiotagger.audio.AudioFileIO; import org.jaudiotagger.audio.AudioHeader; import org.jaudiotagger.audio.exceptions.CannotReadException; import org.jaudiotagger.audio.exceptions.CannotWriteException; import org.jaudiotagger.audio.exceptions.In