Question

java调用dll怎么处理指针参数

Answer 1

//Thisisthestandard,stablewayofmapping,whichsupportsextensive//customizationandmappingofJavatonativetypes.publicinterfaceCLibraryextendsLibrary{CLibraryINSTANCE=(CLibrary)Native.loadLibrary("TestDLL.dll",CLibrary.class);//函数声明byte[]和String都试过，都不行，改变不了传递进去的字符串intgetXMLResult(byte[]result);}/***@paramargs*/publicstaticvoidmain(String[]args){//TODOAuto-generatedmethodstubSystem.out.println("begin");//WStrings=newWString("Hello,World");//System.out.println("s="+s.toString());byte[]c={'a','a','a','a'};System.out.println("c="+Native.toString(c));//ByteByReference[]iref=newByteByReference[4];inti=CLibrary.INSTANCE.getXMLResult(c);System.out.println("i="+i);System.out.println("c="+Native.toString(c));//System.out.println("s="+s.toString());System.out.println("end");}}Java中byte[]c初始化，调用DLL中函数，但byte[]c的值没有被修改。===============================================================现在知道用Memory来处理指针的问题，调用C的函数声明修改如下：

Answer 2

使用相应的类型的数组

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