NoHttp封装--01

Posted 2020-11-04 安卓笔记侠

NoHttpActivity

 1 public class NoHttpActivity extends Activity implements View.OnClickListener {
 2 
 3     private final int NOHTTP_LOGIN = 0x01;//登陆
 4     private final int NOHTTP_LOGOUT = 0x02;//退出
 5 
 6     private TextView tvResult;
 7 
 8     @Override
 9     protected void onCreate(Bundle savedInstanceState) {
10         super.onCreate(savedInstanceState);
11         setContentView(R.layout.activity_nohttp);
12         findViewById(R.id.btn_login).setOnClickListener(this);
13         findViewById(R.id.btn_logout).setOnClickListener(this);
14         tvResult = (TextView) findViewById(R.id.tv_result);
15     }
16 
17     @Override
18     public void onClick(View v) {
19         if (v.getId() == R.id.btn_login) {
20             FastJsonRequest request = new FastJsonRequest(Constants.LOGIN, RequestMethod.GET);
21             request.add("userName", "yolanda");
22             request.add("userPwd", "123");
23             CallServer.getInstance().add(this, request, callBack, NOHTTP_LOGIN, true, false, true);
24         } else {
25             FastJsonRequest request = new FastJsonRequest(Constants.LOGOUT, RequestMethod.GET);
26             CallServer.getInstance().add(this, request, callBack, NOHTTP_LOGOUT, true, false, true);
27         }
28     }
29 
30     private HttpCallBack<JSONObject> callBack = new HttpCallBack<JSONObject>() {
31 
32         @Override
33         public void onSucceed(int what, Response<JSONObject> response) {
34             if (what == NOHTTP_LOGIN) {// 处理登录结果
35                 JSONObject jsonObject = response.get();
36                 tvResult.setText("登录接口数据：" + jsonObject.getString("data"));
37             } else if (what == NOHTTP_LOGOUT) {// 处理登出结果
38                 JSONObject jsonObject = response.get();
39                 tvResult.setText("退出接口数据：" + jsonObject.getString("data"));
40             }
41         }
42 
43         @Override
44         public void onFailed(int what, String url, Object tag, Exception exception, int responseCode, long networkMillis) {
45             tvResult.setText("请求失败");
46         }
47     };
48 
49 }

CallServer：

 1 public class CallServer {
 2 
 3     private static CallServer instance;
 4 
 5     private RequestQueue queue;
 6 
 7     public synchronized static CallServer getInstance() {
 8         if (instance == null) {
 9             instance = new CallServer();
10         }
11         return instance;
12     }
13 
14     private CallServer() {
15         queue = NoHttp.newRequestQueue();
16     }
17 
18     /**
19      * 添加一个请求到请求队列
20      * 
21      * @param context 上下文
22      * @param request 请求对象
23      * @param callBack 接受回调结果
24      * @param what what，当多个请求用同一个responseListener接受结果时，用来区分请求
25      * @param isShowDialog 是否显示dialog
26      * @param isCanCancel 请求是否能被用户取消
27      * @param isShowError 是否提示用户错误信息
28      */
29     public <T> void add(Context context, Request<T> request, HttpCallBack<T> callBack, int what, boolean isShowDialog, boolean isCanCancel, boolean isShowError) {
30         queue.add(what, request, new ResponseListener<T>(request, context, callBack, isShowDialog, isCanCancel, isShowError));
31     }
32 
33 }

ResponseListener：

 1 public class ResponseListener<T> implements OnResponseListener<T> {
 2 
 3     private Request<T> mRequest;
 4 
 5     private WaitDialog mDialog;
 6 
 7     private HttpCallBack<T> callBack;
 8 
 9     private boolean isShowError;
10 
11     public ResponseListener(Request<T> request, Context context, HttpCallBack<T> callBack, boolean isShowDialog, boolean isCanCancel, boolean isShowError) {
12         this.mRequest = request;
13         this.callBack = callBack;
14         this.isShowError = isShowError;
15         if (context != null && isShowDialog) {
16             mDialog = new WaitDialog(context);
17             mDialog.setCancelable(isCanCancel);
18             mDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
19                 @Override
20                 public void onCancel(DialogInterface dialog) {
21                     mRequest.cancel(true);
22                 }
23             });
24         }
25     }
26 
27     @Override
28     public void onStart(int what) {
29         if (mDialog != null && !mDialog.isShowing())
30             mDialog.show();
31     }
32 
33     @Override
34     public void onSucceed(int what, Response<T> response) {
35         if (callBack != null)
36             callBack.onSucceed(what, response);
37     }
38 
39     @Override
40     public void onFailed(int what, String url, Object tag, Exception exception, int responseCode, long networkMillis) {
41         if (isShowError) {
42             if (exception instanceof ClientError) {// 客户端错误
43                 Toast.show("客户端发生错误");
44             } else if (exception instanceof ServerError) {// 服务器错误
45                 Toast.show("服务器发生错误");
46             } else if (exception instanceof NetworkError) {// 网络不好
47                 Toast.show("请检查网络");
48             } else if (exception instanceof TimeoutError) {// 请求超时
49                 Toast.show("请求超时，网络不好或者服务器不稳定");
50             } else if (exception instanceof UnKnownHostError) {// 找不到服务器
51                 Toast.show("未发现指定服务器");
52             } else if (exception instanceof URLError) {// URL是错的
53                 Toast.show("URL错误");
54             } else if (exception instanceof NotFoundCacheError) {
55                 Toast.show("没有发现缓存");
56             } else {
57                 Toast.show("未知错误");
58             }
59         }
60         if (callBack != null)
61             callBack.onFailed(what, url, tag, exception, responseCode, networkMillis);
62     }
63 
64     @Override
65     public void onFinish(int what) {
66         if (mDialog != null && mDialog.isShowing())
67             mDialog.dismiss();
68     }
69 
70 }

HttpCallBack

 1 public interface HttpCallBack<T> {
 2 
 3     /**
 4      * Server correct response to callback when an HTTP request.
 5      *
 6      * @param what the credit of the incoming request is used to distinguish between multiple requests.
 7      * @param response in response to the results.
 8      */
 9     void onSucceed(int what, Response<T> response);
10 
11     /**
12      * When there was an error correction.
13      *
14      * @param what the credit of the incoming request is used to distinguish between multiple requests.
15      * @param url url.
16      * @param tag tag of request callback.
17      * @param exception error message for request.
18      * @param responseCode server response code.
19      * @param networkMillis request process consumption time.
20      */
21     void onFailed(int what, String url, Object tag, Exception exception, int responseCode, long networkMillis);
22 
23 }

FastJsonRequest：自定义FastJsonRequest对象，所有的自定义对象都要继承{@link RestReqeust}

 1 public class FastJsonRequest extends RestRequest<JSONObject> {
 2 
 3     public FastJsonRequest(String url, RequestMethod requestMethod) {
 4         super(url, requestMethod);
 5     }
 6 
 7     public FastJsonRequest(String url) {
 8         super(url);
 9     }
10 
11     /**
12      * 高速服务端你能接受的数据类型是什么
13      */
14     @Override
15     public String getAccept() {
16         return JsonObjectRequest.ACCEPT;
17     }
18 
19     /**
20      * @param url 请求的url
21      * @param responseHeaders 服务端的响应头
22      * @param 服务端的响应数据
23      * @return 你解析后的对象
24      */
25     @Override
26     public JSONObject parseResponse(String url, Headers responseHeaders, byte[] responseBody) {
27         return parse(url, responseHeaders, responseBody);
28     }
29 
30     /**
31      * 解析服务端数据成{@link JsonObject}
32      * 
33      * @param url
34      * @param responseHeaders
35      * @param responseBody
36      * @return
37      */
38     public static JSONObject parse(String url, Headers responseHeaders, byte[] responseBody) {
39         String string = StringRequest.parseResponseString(url, responseHeaders, responseBody);
40         JSONObject jsonObject = null;
41         try {
42             jsonObject = JSON.parseObject(string);
43         } catch (Exception e) {// 可能返回的数据不是json，或者其他异常
44             string = "{}";
45             jsonObject = JSON.parseObject(string);
46         }
47         return jsonObject;
48     }
49 
50 }

WaitDialog：

 1 public class WaitDialog extends ProgressDialog {
 2 
 3     public WaitDialog(Context context) {
 4         super(context);
 5         requestWindowFeature(Window.FEATURE_NO_TITLE);
 6         setCanceledOnTouchOutside(false);
 7         setProgressStyle(STYLE_SPINNER);
 8         setMessage("正在请求，请稍候…");
 9     }
10 
11 }