OkHttp3的简单使用（二）

OkHttp3的简单封装

public class OkHttpUtil {
   public static final String TAG="OkHttpUtil";
   private static OkHttpClient client;
   private static OkHttpUtil httpUtil;

   private OkHttpUtil(){
      client=new OkHttpClient.Builder()
            .connectTimeout(10, TimeUnit.SECONDS)
            .readTimeout(10,TimeUnit.SECONDS)
            .build();
   }

// 使用单例模式，保证只有一个OkHttpUtil和OkHttpClient 的实例。
   public static OkHttpUtil getInstance(){
      synchronized (OkHttpUtil.class){
         if(httpUtil==null){
            httpUtil= new OkHttpUtil();
            return httpUtil;
         }
      }
      return httpUtil;
   }

   /**
    * get异步请求
    * @param url
    */
   public static void getData(String url){
      Request request=new Request.Builder().url(url)
            .build();
      client.newCall(request).enqueue(new Callback() {
         @Override
         public void onFailure(Call call, IOException e) {

         }

         @Override
         public void onResponse(Call call, Response response) throws IOException {
            //字符串类型
            Log.i(TAG, "getData: " + response.body().string());
            //字节数组类型
            Log.i(TAG, "getData: " + response.body().bytes());
            //字节流类型
            Log.i(TAG, "getData: " + response.body().byteStream());
            //字符流类型
            Log.i(TAG, "getData: " + response.body().charStream());
         }
      });
   }

   /**
    * 带有多个参数的get请求
    * @param url
    * @param map
    */
   public void getParams(String url,Map<String,String> map){
      String url1=url;

      if(map!=null&&map.size()>0){
         for(String key:map.keySet()){
            url1+="&"+key+"="+map.get(key);
         }
      }
      getData(url1);
   }

   /**
    * 提交单个键值对
    * @param url
    * @param key
    * @param value
    */
   public void postKeyValuePaire(String url,String key,String value){
      FormBody formBody=new FormBody.Builder()
            .add(key,value)
            .build();
      Request request=new Request.Builder()
            .url(url)
            .post(formBody)
            .build();
      client.newCall(request).enqueue(new Callback() {
         @Override
         public void onFailure(Call call, IOException e) {

         }

         @Override
         public void onResponse(Call call, Response response) throws IOException {

         }
      });
   }

   /**
    * 提交多个键值对
    *
    * @param url 提交的路径
    * @param map 用来放置键值对,map的key对应键,value对应值
    */

   public void postMap(String url,Map<String ,String> map){
      FormBody.Builder formBody=new FormBody.Builder();
      if(map!=null){
         for(String key:map.keySet()){
            formBody.add(key,map.get(key));
         }
      }
      Request request=new Request.Builder().url(url)
            .post(formBody.build())
            .build();
      client.newCall(request).enqueue(new Callback() {
         @Override
         public void onFailure(Call call, IOException e) {

         }

         @Override
         public void onResponse(Call call, Response response) throws IOException {

         }
      });
   }

   /**
    * post提交Json数据
    * @param url
    * @param content
    */
   public void postString(String url,String content){

      MediaType mediaType=MediaType.parse("application/json;  charset=utf-8");
      RequestBody requestBody=RequestBody.create(mediaType,content);
      Request request=new Request.Builder()
            .url(url)
            .post(requestBody)
            .build();
      client.newCall(request)
            .enqueue(new Callback() {
               @Override
               public void onFailure(Call call, IOException e) {

               }

               @Override
               public void onResponse(Call call, Response response) throws IOException {

               }
            });
   }

   /**
    * 上传单一文件
    */
    public void uploadFile(String url, File file, Callback callback){
        MediaType type=MediaType.parse(getMediaType(file.getName()));//设置上传文件的类型
        MultipartBody.Builder builder = new MultipartBody.Builder()
                .setType(MultipartBody.FORM)
                .addFormDataPart("file", file.getName(),
                        RequestBody.create(type, file));

        RequestBody requestBody = builder.build();

        Request request = new Request.Builder()
                .url(url)
                .post(requestBody)
                .build();

        client.newCall(request).enqueue(callback);
    }

    /**
     * 上传多个文件
     * @param url
     * @param files
     */
    public void uploadFiles(String url,File[] files){
         MultipartBody.Builder builder=new MultipartBody
                 .Builder()
                 .setType(MultipartBody.FORM);
         for(int i = 0; i<files.length; i++){
             RequestBody fileBody=RequestBody.create(MediaType.parse(getMediaType(files[i].getName())),files[i]);
             builder.addFormDataPart("file",files[i].getName(),fileBody);
         }
         Request request=new Request.Builder()
                 .url(url)
                 .post(builder.build())
                 .build();
         client.newCall(request)
                 .enqueue(new Callback() {
                     @Override
                     public void onFailure(Call call, IOException e) {

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

                     }
                 });
     }

    /**
     * 上传多个文件和参数
     * @param url   url地址
     * @param files  文件
     * @param map  参数
     */
     public void uplaodMultiFiles(String url, File[] files, Map<String ,String> map){
         MultipartBody.Builder builder=new MultipartBody.Builder().setType(MultipartBody.FORM);
         //添加文件
         if(files!=null&&files.length>0){
             for(int i=0;i<files.length;i++){
                 builder.addFormDataPart("uploadfile",files[i].getName(),RequestBody.create(MediaType.parse(files[i].getName()),files[i]));
             }
         }

         //添加参数
         if(map!=null&&map.size()>0){
             for(String key:map.keySet()){
                 builder.addFormDataPart(key,map.get(key));
             }
         }
         Request request=new Request.Builder().url(url)
                 .post(builder.build())
                 .build();
         client.newCall(request).enqueue(new Callback() {
             @Override
             public void onFailure(Call call, IOException e) {

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

             }
         });
     }

    /**
     * 根据文件的名称判断文件的MediaType
     * @param fileName  文件名
     * @return  文件的MediaType
     */
     private String getMediaType(String fileName){
         FileNameMap map= URLConnection.getFileNameMap();
         String contentTypeFor=map.getContentTypeFor(fileName);
         if(contentTypeFor==null){
             contentTypeFor="applicationn/octet-stream";
         }
         return contentTypeFor;
     }

    /**
    * 设置请求头
    * @param headersParams  请求头参数
    * @return headers
    */
     private Headers SetHeaders(Map<String, String> headersParams){
         Headers headers=null;
         okhttp3.Headers.Builder headersbuilder=new okhttp3.Headers.Builder();
         if(headersParams != null) {
             Iterator<String> iterator = headersParams.keySet().iterator(); String key = "";
             while (iterator.hasNext()) { key = iterator.next().toString();
             headersbuilder.add(key, headersParams.get(key));
             Log.d("get http", "get_headers==="+key+"===="+headersParams.get(key));
             }
         }
         headers=headersbuilder.build(); return headers;
     }

    /**
     * get方法连接拼加参数
     * @param mapParams  参数
     * @return  拼接后的url
     */
     private String setUrlParams(Map<String, String> mapParams){
         String strParams = "";
         if(mapParams != null){
             Iterator<String> iterator = mapParams.keySet().iterator();
             String key = "";
             while (iterator.hasNext()) {
                 key = iterator.next().toString();
                 strParams += "&"+ key + "=" + mapParams.get(key);
             }
         }
         return strParams;
     }

}