Android开启http服务

[fengfeilong0529]

实现方案：

• AndServer（https://github.com/yanzhenjie/AndServer）
• NanoHttpD（https://github.com/NanoHttpd/nanohttpd）

  参考：

• https://blog.csdn.net/yanzhenjie1003/article/details/64090436

  AndServer使用：

  一、添加依赖：

  implementation 'com.yanzhenjie:andserver:1.1.4'

  二、使用代码：

  2.1）新建HttpServer.java，定义IP为设备IP，端口6666，以及添加需要的接口:

  
  public class HttpServer {
  private static final String TAG = "HttpServer";
  
  private static final String URL_ADD_CARD = "/addCard";
  private static final String URL_DELETE_CARD = "/deleteCard";
  private Server server;
  
  private static final class Holder {
      private static final HttpServer INSTANCE = new HttpServer();
  }
  
  public static HttpServer getInstance() {
      return HttpServer.Holder.INSTANCE;
  }
  
  private HttpServer() {
      RxBus.get().register(this);
  }
  
  public void init() {
      InetAddress addr = NetUtils.getLocalIPAddress();
      if (addr != null) {
          init(addr);
      }
  }
  
  public void reInit() {
      deinit();
      init();
  }
  
  private void init(InetAddress addr) {
      synchronized (this) {
          server = AndServer.serverBuilder()
                  .port(6666)
                  .timeout(10, TimeUnit.SECONDS)
                  .inetAddress(addr)
                  .listener(serverListener)
  
                  .registerHandler(URL_ADD_CARD, new AddCardHandler())
                  .registerHandler(URL_DELETE_CARD, new DeleteCardHandler())
                  .build();
  
          if (!server.isRunning()){
              server.startup();
          }
      }
  }
  
  private void deinit() {
      synchronized (this) {
          if (server != null) {
              server.shutdown();
          }
      }
  }
  
  private Server.ServerListener serverListener = new Server.ServerListener() {
      @Override
      public void onStarted() {
          Log.d(TAG, "HttpServer started");
      }
  
      @Override
      public void onStopped() {
          Log.d(TAG, "HttpServer onStopped");
      }
  
      @Override
      public void onError(Exception e) {
          Log.d(TAG, "HttpServer onError:" + e.getMessage());
      }
  };

}

#### 2.2）AddCardHandler.java:

public class AddCardHandler implements RequestHandler { private static final String TAG = "AddCardHandler";

@RequestMapping(method = {RequestMethod.POST})
@Override
public void handle(HttpRequest request, HttpResponse response, HttpContext context) throws HttpException, IOException {
    StringBuilder builder = new StringBuilder();
    BaseResponse baseResponse = new BaseResponse(0, "添加成功");
    String content = HttpRequestParser.getContent(request);
    AddCardBean addCardBean = new Gson().fromJson(content, AddCardBean.class);
    if (addCardBean != null) {
        String name = addCardBean.getName();
        String idNum = addCardBean.getIdnum();
        String photo = addCardBean.getPhoto();
        String gender = addCardBean.getGender();
        String nation = addCardBean.getNation();
        String address = addCardBean.getAddress();
        String validStart = addCardBean.getValid_start();
        String validEnd = addCardBean.getValid_end();

        if (TextUtils.isEmpty(name)) {
            builder.append("name不能为空，");
        }
        if (TextUtils.isEmpty(idNum)) {
            builder.append("idNum不能为空，");
        }
        if (TextUtils.isEmpty(photo)) {
            builder.append("photo不能为空，");
        }
        if (TextUtils.isEmpty(validStart)) {
            builder.append("validStart不能为空，");
        }
        if (TextUtils.isEmpty(validEnd)) {
            builder.append("validEnd不能为空，");
        }

        if (!TextUtils.isEmpty(builder.toString())) {
            baseResponse.code = 1;
            baseResponse.msg = builder.toString();
        } else {
            //添加名单
            CardBean cardBean = new CardBean();
            cardBean.setName(name);
            cardBean.setSex(gender);
            cardBean.setNation(nation);
            cardBean.setIdNum(idNum);
            cardBean.setAddress(address);
            cardBean.setUserType(UserType.TYPE_WHITE);
            cardBean.setValidStart(validStart);
            cardBean.setValidEnd(validEnd);

            Log.i(TAG, "handle: " + cardBean.toString());

            //解析base64图片
            Bitmap bitmap = FileUtil.base64StringToBitmap(photo);
            String error = CardManager.getInstance().addCard(bitmap, idNum + Constants.JPG, cardBean);
            RxBus.get().post(new RxUserChange());

            if (!TextUtils.isEmpty(error)) {
                baseResponse.code = 1;
                baseResponse.msg = error;
            }
        }
    } else {
        baseResponse.code = 1;
        baseResponse.msg = "参数错误";
    }

    response.setEntity(new StringEntity(new Gson().toJson(baseResponse), "utf-8"));
}

}

#### 2.3)DeleteCardHandler.java:

public class DeleteCardHandler implements RequestHandler { private static final String TAG = "DeleteCardHandler";

@RequestMapping(method = {RequestMethod.POST})
@Override
public void handle(HttpRequest request, HttpResponse response, HttpContext context) throws HttpException, IOException {
    StringBuilder builder = new StringBuilder();
    BaseResponse baseResponse = new BaseResponse(0, "删除成功");

    String content = HttpRequestParser.getContent(request);
    DeleteCardBean deleteCardBean = new Gson().fromJson(content, DeleteCardBean.class);
    if (deleteCardBean != null) {
        List<String> idnums = deleteCardBean.getIdnum();
        if (idnums.size() == 0) {
            builder.append("idnum不能为空");
        }
        if (!TextUtils.isEmpty(builder.toString())) {
            baseResponse.code = 1;
            baseResponse.msg = builder.toString();
        } else {
            //删除名单
            for (String idnum : idnums) {
                CardManager.getInstance().deleteCard(idnum);
                RxBus.get().post(new RxUserChange());
            }
        }
    } else {
        baseResponse.code = 1;
        baseResponse.msg = "参数错误";
    }

    response.setEntity(new StringEntity(new Gson().toJson(baseResponse), "utf-8"));
}

}

#### 2.4)在SplashActivity中开启HttpServer服务：
`HttpServer.getInstance().init();// 开启http服务`