安卓系统中的RequestQueue

RequestQueue queue = Volley.newRequestQueue(context);
queue.start();

StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
    new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            // 处理响应
        }
    },
    new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            // 处理错误
        }
    });
stringRequest.setRetryPolicy(new DefaultRetryPolicy(
    5000, // 超时时间
    DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
    DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
queue.add(stringRequest);

StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
    new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            // 处理响应
        }
    },
    new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            // 处理错误
        }
    });
stringRequest.setShouldCache(false); // 禁用缓存
queue.add(stringRequest);