N-API开发Node addons程序 | 我的个人生活记录

参考：

https://nodejs.github.io/node-addon-examples/about/what

https://morioh.com/p/3be45e2372a2

依赖安装：npm install --global --production windows-build-tools

安装Yeoman：npm install -g yo

安装generator-napi-module：npm install -g generator-napi-module

创建示例项目：

mkdir hello-world
cd hello-world
yo napi-module

#include 
#include 
#include 
using namespace Napi;

Napi::String Method(const Napi::CallbackInfo& info) {
  Napi::Env env = info.Env();
  std::string name = (std::string)info[0].ToString();
  HMODULE module = LoadLibrary("TestDll2.dll");
  if (module == NULL) {
    printf("加载dll失败");
    return Napi::String::New(env, "fail");
  }
  typedef int(*AddFunc)(int, int);
  AddFunc add = (AddFunc)GetProcAddress(module, "add");
  int c = add(1, 2);
  std::string d = std::to_string(c);
  return Napi::String::New(env, "Hello " + name + d);
}

Napi::Object Init(Napi::Env env, Napi::Object exports) {
  exports.Set(Napi::String::New(env, "HellowWorld"),
              Napi::Function::New(env, Method));
  return exports;
}

NODE_API_MODULE(addon, Init)

初始化命令：node-gyp configure

编译命令：node-gyp rebuild

针对electron：

安装electron-rebuild：npm install --save-dev @electron/rebuild

针对electron编译(指定electron版本)：electron-rebuild --version 13.0.0

electron项目配置

安装：npm install native-ext-loader@latest --save-dev

vue.config.js

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
    transpileDependencies: true,
    pluginOptions: {
        electronBuilder: {
            nodeIntegration: true,
            chainWebpackMainProcess(config) {
                config.module
                    .rule("node")
                    .test(/\.node$/)
                    .use("native-ext-loader")
                    .loader("native-ext-loader")
            },
            chainWebpackRendererProcess: (config) => {
                config.module
                    .rule("node")
                    .test(/\.node$/)
                    .use("native-ext-loader")
                    .loader("native-ext-loader")
                    .options({rewritePath:"src"})
            },
            builderOptions: {
                /*
                files:[
                  {
                    from: "src/main.node",
                    to: "src/",
                  }
                ],
                */
            }
        }
    }
})

通过ipc交互

依赖的dll文件加载时，相对路径是electron项目的根目录