转自 https://blog.csdn.net/lining1041204250/article/details/73322108
在 主界面
RequestQueue mQueue = Volley.newRequestQueue(MainActivity.this);String url = "http://localhost/a/login";HashMap<String, String> hashMap = new HashMap<String,String>(); ???????hashMap.put("name", "123456"); ???????hashMap.put("password", "123456"); ???????JSONObject jsonObject = new JSONObject(hashMap); ???????CustomRequest ?mRequest = new CustomRequest (Request.Method.POST,url,hashMap, ???????????????new Response.Listener<JSONObject>() { ???????????????????@Override ???????????????????public void onResponse(JSONObject response) { ???????????????????????try { ???????????????????????????String rs = response.getString("result"); ???????????????????????????Log.i("返回数据：",rs.toString()); ???????????????????????} catch (JSONException e) { ???????????????????????????e.printStackTrace(); ???????????????????????} ???????????????????} ???????????????}, ???????????????new Response.ErrorListener() { ???????????????????@Override ???????????????????public void onErrorResponse(VolleyError error) { ???????????????????} ???????????????}) { ???????}; ???????mQueue.add(mRequest);重写JSONObjectRequest
import com.android.volley.NetworkResponse;import com.android.volley.ParseError;import com.android.volley.Request;import com.android.volley.Response;import com.android.volley.Response.ErrorListener;import com.android.volley.Response.Listener;import com.android.volley.toolbox.HttpHeaderParser;import org.json.JSONException;import org.json.JSONObject;import java.io.UnsupportedEncodingException;import java.util.Map;public class CustomRequest extends Request<JSONObject> { ???private Listener<JSONObject> listener; ???private Map<String, String> params; ???public CustomRequest(String url, Map<String, String> params, ????????????????????????Listener<JSONObject> reponseListener, ErrorListener errorListener) { ???????super(Method.GET, url, errorListener); ???????this.listener = reponseListener; ???????this.params = params; ???} ???public CustomRequest(int method, String url, Map<String, String> params, ????????????????????????Listener<JSONObject> reponseListener, ErrorListener errorListener) { ???????super(method, url, errorListener); ???????this.listener = reponseListener; ???????this.params = params; ???} ???protected Map<String, String> getParams() ???????????throws com.android.volley.AuthFailureError { ???????return params; ???}; ???@Override ???protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) { ???????try { ???????????String jsonString = new String(response.data, ???????????????????HttpHeaderParser.parseCharset(response.headers)); ???????????return Response.success(new JSONObject(jsonString), ???????????????????HttpHeaderParser.parseCacheHeaders(response)); ???????} catch (UnsupportedEncodingException e) { ???????????return Response.error(new ParseError(e)); ???????} catch (JSONException je) { ???????????return Response.error(new ParseError(je)); ???????} ???} ???@Override ???protected void deliverResponse(JSONObject response) { ???????// TODO Auto-generated method stub ???????listener.onResponse(response); ???}}就搞定啦
volley实现传入string 返回JsonObject
原文地址：https://www.cnblogs.com/Nora-F/p/10320335.html