c++ - 在 DLL 中加载 JVM

Question

我在 dll 中加载 JVM，但它失败了（在失败的代码中显示。）。我在exe中尝试了相同的代码，它工作正常。

  JavaVMInitArgs vm_args; /* JDK 1.1 VM initialization arguments */
  JNIEnv *env;
  JavaVMOption options;
  options.optionString = "-Djava.class.path=C:\\Core\\bin\\otk-1.4.1-with-dependencies.jar";

  vm_args.version = JNI_VERSION_1_6; 
  vm_args.nOptions = 1;
  vm_args.options = &options;
  vm_args.ignoreUnrecognized = 0;

  jvm_dll = LoadLibrary("C:\\Program Files\\Java\\jdk1.6.0_23\\jre\\bin\\server\\jvm.dll");
  if(jvm_dll == NULL) 
  { 
getManager()->log( "InitialiseJava::Can't Load JVM DLL.", HIGH_IMPORTANCE );
return false;
  }  

  JNI_CreateJavaVM_ptr = (JNI_CreateJavaVM_func)GetProcAddress(jvm_dll, "JNI_CreateJavaVM");
 if(JNI_CreateJavaVM_ptr == NULL) 
{ 
getManager()->log( "InitialiseJava::Can't create JVM.", HIGH_IMPORTANCE );
return false;
}

int ret = JNI_CreateJavaVM_ptr(jvm, (void**)&env, &vm_args); // fails here
if(ret < 0)
{
getManager()->log( "InitialiseJava::Unable to call JVM.", HIGH_IMPORTANCE );
return false;
}

请帮忙。