java调用DLL如何返回LPSTR即char*

Question

比如C++的函数原型为 long returnResult(LPSTR)调用函数返回ID,LPWSTR返回数据LPSTR相当于char*在C++中调用可以这样的话char result[30];ID=returnResult(result);data=result请问在java中如何得到这个result的值呢

Answer 1

public class Test { static String fReturn() { return "Hello!"; } static void fArgNoWorkie(String s) { s = "What am I doing???"; // Doesn't "work"! Java passes by value! } static void fMutate(StringBuilder sb) { sb.append("Here you go!"); } public static void main(String[] args) { String s = null; s = fReturn(); System.out.println(s); // prints "Hello!" fArgNoWorkie(s); System.out.println(s); // prints "Hello!" StringBuilder sb = new StringBuilder(); fMutate(sb); s = sb.toString(); System.out.println(s); // prints "Here you go!" }}参考: http://stackoverflow.com/questio ... t-parameter-in-java本回答被网友采纳

Answer 2

话说我用了native后产生的那个.h头文件里面引用的jni头文件,我不管怎么弄,都提示那个地方有错