HttpURLConnection URL带参数的网络请求

点击按钮发起网络请求

btn_getUrlParams.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Map<String,String> params = new HashMap<>();
        params.put("keyword","搜索");//参数，方便后面进行拼接
        params.put("page","50");
        params.put("order","1");
        startRequest(params,"GET","/get/param"); //发起请求的方法
        Log.d(TAG, "map result--->"+params.toString());
    }
});

/**
 * @param params 参数
 * @param method get/post
 * @param api 接口
 */
private void startRequest(final Map<String, String> params, final String method, final String api) {
    new Thread(new Runnable() {
        @Override
        public void run() {
            BufferedReader bufferedReader=null;
            try {
                StringBuilder sb = new StringBuilder();
                if (params !=null && params.size()>0) {
                    sb.append("?");
                    Iterator<Map.Entry<String, String>> iterator = params.entrySet().iterator();
                    while (iterator.hasNext()) {
                        Map.Entry<String, String> next = iterator.next();
                        sb.append(next.getKey());
                        sb.append("=");
                        sb.append(next.getValue());
                        if (iterator.hasNext()) {
                            sb.append("&"); //如果后面没有参数了，在最后就不添加&符号
                        }
                    }
                    Log.d(TAG, "sb result--->"+sb.toString()); //拼接
                }
                URL url;
                if (params !=null && params.size()>0) {
                    url = new URL(BASE_URL+api+sb.toString()); //BASE_URL 服务器IP+接口+加拼接的参数组成 带参数的URL
                }else{
                    url = new URL(BASE_URL+api);
                }

                HttpURLConnection httpURLConnection  = (HttpURLConnection) url.openConnection();
                httpURLConnection.setRequestMethod(method); //请求方法
                httpURLConnection.setConnectTimeout(10000); //设置连接超时
                httpURLConnection.setRequestProperty("Accept-Language","zh-CN,zh;q=0.9");//请求体
                httpURLConnection.setRequestProperty("Accept ","*/*");
                httpURLConnection.connect();
                
		//如果连接成功就读取服务器返回的数据
                if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
                    InputStream inputStream = httpURLConnection.getInputStream();
                    bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
                    Log.d(TAG, "result--->"+bufferedReader.readLine());
                }

            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                try {
                    bufferedReader.close(); //关闭流
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }).start();

}

详细学习资料连接