okhttp封装

#okhttpcontenuitls
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/**

• 原则：代码复用性+只有一个Client对象

• */
  public class OkhttpUtils {
  private OkHttpClient okHttpClient;//在构造方法里面创建

  //单例模式：构造私有化
  private OkhttpUtils(){//只会创建一次
  //log拦截器
  HttpLoggingInterceptor httpLoggingInterceptor=new HttpLoggingInterceptor();
  httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
  //token拦截器
  Interceptor tokenInterceptor=new Interceptor() {
  @Override
  public Response intercept(Chain chain) throws IOException {
  // Request request = chain.request();//获得request对象
  // Request.Builder builder = request.newBuilder();//通过request获得builder
  // builder.header(“token”,“1705B”);//设置请求头
  // Request request1 = builder.build();//添加了token的request
  Request request1=chain.request().newBuilder().header(“token”,“1705B”).build();
  return chain.proceed(request1);
  }
  };
  okHttpClient=new OkHttpClient.Builder()
  .readTimeout(5, TimeUnit.SECONDS)
  .connectTimeout(5, TimeUnit.SECONDS)
  .addInterceptor(tokenInterceptor)//添加token拦截器，一定要在log拦截器之前设置
  .addInterceptor(httpLoggingInterceptor)//添加log拦截器
  .build();

  };
  //自行实例化
  private static voliate OkhttpUtils okhttpUtils=null;
  //公开方法
  public static OkhttpUtils getInstance(){
  //双重校验锁：
  if(okhttpUtilsnull){
  synchronized (StringBuilder.class){
  if(okhttpUtilsnull){
  okhttpUtils=new OkhttpUtils();
  }
  }
  }
  return okhttpUtils;
  }
  /***

  • @param str_url 网址
  • @param listener 回调 将请求的结果返回给Activitt
    /
    public void doget(String str_url, final MyOkListener listener){
    //TODO 2:request对象
    Request request=new Request.Builder().url(str_url).get().header(“Connection”,“Keep-Alive”).build();
    //TODO 3:call
    Call call = okHttpClient.newCall(request);
    //TODO 4:加入队列 得到response
    call.enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
    listener.onError(e.getMessage());
    }
    @Override
    public void onResponse(Call call, Response response) throws IOException {
    listener.onSuccess(response.body().string());
    }
    });
    }
    /**
  • @param str_url 请求网址
  • @param listener 回调的监听
  • @param map 请求体参数
    */
    public void dopost(String str_url, HashMap<String,String> map, final MyOkListener listener){
    //TODO 请求体
    FormBody.Builder builder1 = new FormBody.Builder();
    Set<Map.Entry<String, String>> entries = map.entrySet();//键值对的集合
    for (Map.Entry<String, String> entry : entries) {//遍历集合
    String key = entry.getKey();//获得键
    String value = entry.getValue();//获得值
    builder1.add(key,value);
    }
    FormBody formBody = builder1.build();
    //TODO 2:request对象
    Request request = new Request.Builder().url(str_url).post(formBody).build();
    //TODO 3:call
    Call call = okHttpClient.newCall(request);
    //TODO 4:加入队列 得到response
    call.enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
    listener.onError(e.getMessage());
    }
    @Override
    public void onResponse(Call call, Response response) throws IOException {
    listener.onSuccess(response.body().string());
    }
    });
    }

  /***

  • @param str_url 网址

  • @param path 下载地址

  • @param listener 监听
    */
    public void download(String str_url, final String path, final MyFileListener listener){
    //TODO 1:request对象
    Request request = new Request.Builder()
    .url(str_url)
    .get()
    //③”Accept-Encoding”, “identity”
    .header(“Accept-Encoding”,“identity”)
    .build();
    //TODO 2:客户端发起连接得到call
    Call call = okHttpClient.newCall(request);
    //TODO 3：加入队列得到response
    call.enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
    listener.onError(e.getMessage());
    }

     @Override
     public void onResponse(Call call, Response response) throws IOException {
         ResponseBody body = response.body();
         //TODO 1:获得总长度
         long max = body.contentLength();
     
         //TODO 2:得到输入流
         InputStream inputStream = body.byteStream();
         FileOutputStream fileOutputStream = new FileOutputStream(path);
         byte[] bytes=new byte[1024];
         int len=0;
         int count=0;
         while((len=inputStream.read(bytes))!=-1){
             fileOutputStream.write(bytes,0,len);
             count+=len;
            	int progress= count*100/max;
             listener.setProgress(progress);//通知进度
         }
         listener.onFinish();//通知完成
     }
    

    });

  }

  /****
  *

  • @param str_url 请求网址

  • @param path 上传文件的路径

  • @param filename 上传到服务器那边生成文件的名称

  • @param type 类型

  • @param listener 监听
    */
    public void upload(String str_url, String path, String filename,String type, final MyFileListener listener){
    //请求体如何设置
    MultipartBody body=new MultipartBody.Builder()
    .setType(MultipartBody.FORM)//设置方式
    .addFormDataPart(“file”,filename, RequestBody.create(MediaType.parse(type),new File(path)))
    .build();
    //---------------------
    Request request=new Request.Builder().url(str_url).post(body).build();
    Call call = okHttpClient.newCall(request);
    call.enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
    listener.onError(e.getMessage());
    }

     @Override
     public void onResponse(Call call, Response response) throws IOException {
         listener.onFinish();
     }
    

    });

  }
  }

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