JNI 中 C++ 字符串到 jstring 类型的转换

jstring CharsToString(JNIEnv *pEnv, const char *pChars, const char *pEncoding = "GB2312")
{
  jclass clazz = pEnv->FindClass("java/lang/String");
  jmethodID methodID = pEnv->GetMethodID(clazz, "<init>", "([BLjava/lang/String;)V");
  jbyteArray bytes = pEnv->NewByteArray(strlen(pChars));
  pEnv->SetByteArrayRegion(bytes, 0, strlen(pChars), reinterpret_cast<const jbyte *>(pChars));
  jstring strEncoding = pEnv->NewStringUTF(pEncoding);
  jobject objString = pEnv->NewObject(clazz, methodID, bytes, strEncoding);
  pEnv->DeleteLocalRef(strEncoding);
  pEnv->DeleteLocalRef(bytes);

  return reinterpret_cast<jstring>(objString);
}