Volley StringRequest发送参数POST方法

String url = "http://example.com/api";
StringRequest request = new StringRequest(Request.Method.POST, url,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                // 请求成功的回调处理
            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                // 请求失败的回调处理
            }
        }) {
    @Override
    protected Map<String, String> getParams() {
        Map<String, String> params = new HashMap<>();
        params.put("param1", "value1");
        params.put("param2", "value2");
        return params;
    }
};

RequestQueue queue = Volley.newRequestQueue(context);
queue.add(request);