url参数转json、json转Map＜String,String＞、Map＜String,String＞转RequestBody、Okhttp JSON请求、Okhttp GET POST异步请求

最新推荐文章于 2023-11-23 16:23:09 发布

原创最新推荐文章于 2023-11-23 16:23:09 发布

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该博客详细介绍了如何使用OkHttp进行HTTP请求，包括同步和异步GET、POST操作，以及URL参数转JSON、JSON转Map<String, String>、Map<String, String>转RequestBody的方法。通过这些转换，可以灵活地处理网络请求中的数据格式。

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url参数转json、json转Map<String,String>、Map<String,String>转RequestBody

    //Map<String,String>转RequestBody
    private RequestBody setRequestBody(Map<String, String> BodyParams){
        RequestBody body=null;
        okhttp3.FormBody.Builder formEncodingBuilder=new okhttp3.FormBody.Builder();
        if(BodyParams != null){
            Iterator<String> iterator = BodyParams.keySet().iterator();
            String key = "";
            while (iterator.hasNext()) {
                key = iterator.next().toString();
                formEncodingBuilder.add(key, BodyParams.get(key));
            }
        }
        body=formEncodingBuilder.build();
        return body;

    }

//url参数转json
    public static JSONObject getJsonStrByQueryUrl(String paramStr){
        //String paramStr = "a=a1&b=b1&c=c1";
        String[] params = paramStr.split("&");
        JSONObject obj = new JSONObject();
        for (int i = 0; i < params.length; i++) {
            String[] param = params[i].split("=");
            if (param.length >= 2) {
                String key = param[0];
                String value = param[1];
                for (int j = 2; j < param.length; j++) {
                    value += "=" + param[j];
                }
                try {
                    obj.put(key,value);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
        return obj;
    }

    //json转Map<String,String>
    public static Map<String,String> JsonToMap(JSONObject j) throws JSONException {

        Map<String,String> map = new HashMap<>();

        Iterator<String> iterator = j.keys();

        while(iterator.hasNext()){

            String key = (String)iterator.next();

            String value = j.getString(key);

            map.put(key, value);

        }

        return map;

    }

ohttp同步请求 json参数

//ohttp同步请求 json参数
    public String  jpost(String url,String json) throws IOException {
        OkHttpClient okHttpClient =new OkHttpClient();
        RequestBody requestBody=RequestBody.create(json, MediaType.parse("application/json"));
        Request request=new Request.Builder().url(url).post(requestBody).build();
        Call call =okHttpClient.newCall(request);
        Response response= call.execute();
        return response.body().string();

    }

Okhttp GET POST异步请求

    public void okget(String url){
        Request.Builder builder=new Request.Builder();
        builder.url(url);
        Request request=builder.build();
        Call call = mOkHttpClient.newCall(request);
        Message message=new Message();
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull IOException e) {
                message.what=0x01;
                message.obj="查询失败，请检查网络";
                mHandler.sendMessage(message);
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
                message.what=0x2;
                message.obj=response.body().string();
                mHandler.sendMessage(message);
            }
        });
    }

    public void okpost(String url,RequestBody body,String header){
        Request.Builder builder=new Request.Builder();
        builder.url(url);
        builder.post(body);
        Request request=builder.build();
        Call call = mOkHttpClient.newCall(request);
        Message message=new Message();
        call.enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull IOException e) {
                message.what=0x01;
                message.obj="查询失败，请检查网络";
                mHandler.sendMessage(message);
            }

            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
                message.what=0x3;
                message.obj=response.body().string();
                mHandler.sendMessage(message);
            }
        });
    }


//用handler接收
        mOkHttpClient=new OkHttpClient();
         mHandler=new Handler(){
            @Override
            public void handleMessage(@NonNull Message msg) {
                super.handleMessage(msg);
                if(msg.what==0x2){
                //接收get msg.obj
                }else if(msg.what==0x01){
                //失败
                }else if(msg.what==0x03){
                //接收post msg.obj
                }
        };

Handler发送

                     Message message = new Message();
                     message.what = 0x01;
                     message.obj = "666666";
                     mHandler.sendMessage(message);