Retrofit具体使用方法
1 import android.app.AlertDialog;
2 import android.content.DialogInterface;
3 import android.os.Bundle;
4 import android.os.Environment;
5 import android.os.Handler;
6 import android.support.v7.app.AppCompatActivity;
7 import android.util.Log;
8 import android.view.View;
9 import android.widget.TextView;
10 import android.widget.Toast;
11
12 import com.example.okhttputils.OkHttpClientManager;
13
14 import java.io.File;
15 import java.io.FileOutputStream;
16 import java.io.IOException;
17 import java.io.InputStream;
18 import java.io.OutputStream;
19 import java.util.ArrayList;
20 import java.util.HashMap;
21 import java.util.List;
22
23 import okhttp3.MultipartBody;
24 import okhttp3.OkHttpClient;
25 import okhttp3.RequestBody;
26 import okhttp3.ResponseBody;
27 import retrofit2.Call;
28 import retrofit2.Callback;
29 import retrofit2.Response;
30 import retrofit2.Retrofit;
31 import retrofit2.converter.gson.GsonConverterFactory;
32
33 public class MainActivity extends AppCompatActivity implements View.OnClickListener {
34
35 private TextView tv_content;
36 private String TAG = this.getClass().getSimpleName();
37 private String itemName;
38 private String STR_TAG = TAG + "--->***";
39 protected OkHttpClient okHttpClient;
40 protected Handler deliveryHandler;
41
42 @Override
43 protected void onCreate(Bundle savedInstanceState) {
44 super.onCreate(savedInstanceState);
45 setContentView(R.layout.activity_main);
46 findViewById(R.id.btn_retrofit).setOnClickListener(this);
47 tv_content = (TextView) findViewById(R.id.tv_content);
48
49 okHttpClient = OkHttpClientManager.getInstance(this).getOkHttpClient();
50 deliveryHandler = OkHttpClientManager.getInstance(MainActivity.this).getDeliveryHandler();
51 }
52
53 @Override
54 public void onClick(View v) {
55 //弹一个对话框，分类选择：
56 show();
57
58 }
59
60 private void show() {
61 //创建builder对象。
62 final AlertDialog.Builder builder = new AlertDialog.Builder(this);
63 //设置标题.
64 builder.setTitle("Retrofit2操作");
65 //设置列表内容,以及点击事件.
66 //参数:1,String数组.2,点击事件.
67 final String[] items = {
68 "0指定无参数GET请求",
69 "1指定@Path和@Query参数GET请求",
70 "2指定@QueryMap参数集合GET请求",
71 "3指定@Url参数GET请求",
72 "4指定GET请求返回ResponseBody",
73 "5同步GET请求",
74 "6指定@Fild参数POST请求",
75 "7指定@FildMap参数POST请求",
76 "8指定@Part参数单文件上传",
77 "9指定@Body多文件上传带参数",
78 "10指定@Part通过多文件上传带参数",
79 "11指定@PartMap多文件上传带参数",
80 "12指定@Streaming大文件下载",
81 };
82 builder.setItems(items, new DialogInterface.OnClickListener() {
83 @Override
84 public void onClick(DialogInterface dialogInterface, int i) {
85 itemName = items[i] + STR_TAG;
86 switch (i) {
87 case 0:
88 get0();
89 break;
90 case 1:
91 get1();
92 break;
93 case 2:
94 get2();
95 break;
96 case 3:
97 get3();
98 break;
99 case 4:
100 get4();
101 break;
102 case 5:
103 get5();
104 break;
105 case 6:
106 get6();
107 break;
108 case 7:
109 get7();
110 break;
111 case 8:
112 get8();
113 break;
114 case 9:
115 get9();
116 break;
117 case 10:
118 get10();
119 break;
120 case 11:
121 get11();
122 break;
123 case 12:
124 get12();
125 break;
126 }
127 }
128 });
129 builder.create().show();
130 }
131
132 private void get11() {
133 final File file = new File(Environment.getExternalStorageDirectory(), "1.txt");
134 final File file1 = new File(Environment.getExternalStorageDirectory(), "2.png");
135 final RequestBody body = MultipartBody.create(MultipartBody.FORM, file);
136 final RequestBody body1 = MultipartBody.create(MultipartBody.FORM, file1);
137 final RequestBody body2 =RequestBody.create(MultipartBody.FORM, "zxn001");
138
139 // body =MultipartBody.Part.createFormData("file", file.getName(), body).body();
140 // body1 =MultipartBody.Part.createFormData("file", file.getName(), body1).body();
141 // final RequestBody body2 = MultipartBody.Part.createFormData("username", "zxn001").body();
142
143
144 String baseUrl = "http://192.168.1.102/";
145 new Retrofit.Builder()
146 .baseUrl(baseUrl)
147 .client(okHttpClient)
148 .build()
149 .create(NetService.class)
150 .uploadFilesByPartMap(new HashMap<String, RequestBody>(){
151 {
152 put("file\"; filename=\""+file.getName(), body);
153 put("file\"; filename=\""+file1.getName(), body1);
154 put("username",body2);
155 }
156 })
157 .enqueue(new Callback<ResponseBody>() {
158 @Override
159 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
160 try {
161 showResult("onResponse"+response.body().string());
162 } catch (IOException e) {
163 e.printStackTrace();
164 }
165 }
166
167 @Override
168 public void onFailure(Call<ResponseBody> call, Throwable t) {
169 showResult("onFailure"+t.getMessage());
170 }
171 });
172 }
173
174 private void get12() {
175 final String baseUrl = "http://1251603248.vod2.myqcloud.com/";
176 final String downUrl = "http://1251603248.vod2.myqcloud.com/4c9adaa7vodtransgzp1251603248/30e0819d9031868223192061218/v.f40.mp4";
177 new Thread(new Runnable() {
178 @Override
179 public void run() {
180 try {
181 Response<ResponseBody> response = new Retrofit.Builder()
182 .baseUrl(baseUrl)
183 .client(okHttpClient)
184 .build()
185 .create(NetService.class)
186 .download(downUrl)
187 .execute();
188
189 if (response.isSuccessful()) {
190 deliveryHandler.post(new Runnable() {
191 @Override
192 public void run() {
193 showResult("服务器连接成功!");
194 }
195 });
196 boolean ok = writeDisk(response.body());
197 Log.i(TAG, STR_TAG + "run: 下载:" + ok);
198 if (ok) {
199 deliveryHandler.post(new Runnable() {
200 @Override
201 public void run() {
202 tv_content.setText("下载完成!!");
203 }
204 });
205 }
206 } else {
207 deliveryHandler.post(new Runnable() {
208 @Override
209 public void run() {
210 showResult("下载失败!");
211 }
212 });
213 }
214 } catch (IOException e) {
215 e.printStackTrace();
216 }
217 }
218 }).start();
219 }
220
221 private boolean writeDisk(ResponseBody body) {
222 try {
223 File file = new File(Environment.getExternalStorageDirectory(), "1.mp4");
224 InputStream inputStream = null;
225 OutputStream outputStream = null;
226 try {
227 byte[] fileReader = new byte[4096];
228 long fileSize = body.contentLength();
229 long loadSize = 0;
230
231 inputStream = body.byteStream();
232 outputStream = new FileOutputStream(file);
233 int len = -1;
234 while ((len = inputStream.read(fileReader)) != -1) {
235 outputStream.write(fileReader, 0, len);
236 loadSize += len;
237 Log.i(TAG, STR_TAG + "已经下载: " + loadSize + "/总大小: " + fileSize);
238 }
239 outputStream.flush();
240 return true;
241 } catch (IOException e) {
242 return false;
243 } finally {
244 if (inputStream != null) {
245 inputStream.close();
246 }
247 if (outputStream != null) {
248 outputStream.close();
249 }
250 }
251 } catch (IOException e) {
252 return false;
253 }
254 }
255
256 private void get10() {
257 File file = new File(Environment.getExternalStorageDirectory(), "1.txt");
258 File file1 = new File(Environment.getExternalStorageDirectory(), "2.png");
259 List<MultipartBody.Part> parts = new ArrayList<>();
260 RequestBody body = MultipartBody.create(MultipartBody.FORM, file);
261 RequestBody body1 = MultipartBody.create(MultipartBody.FORM, file1);
262 MultipartBody.Part part = MultipartBody.Part.createFormData("file", file.getName(), body);
263 MultipartBody.Part part1 = MultipartBody.Part.createFormData("file", file1.getName(), body1);
264 MultipartBody.Part part2 = MultipartBody.Part.createFormData("username", "zxn001");
265 parts.add(part);
266 parts.add(part1);
267 parts.add(part2);
268
269 // String baseUrl = "http://192.168.1.102/";
270 String baseUrl = "http://169.254.38.24/";
271 new Retrofit.Builder()
272 .baseUrl(baseUrl)
273 .client(okHttpClient)
274 .build()
275 .create(NetService.class)
276 .uploadFilesByPart(parts)
277 .enqueue(new Callback<ResponseBody>() {
278 @Override
279 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
280 try {
281 showResult("onResponse" + response.body().string());
282 } catch (IOException e) {
283 e.printStackTrace();
284 }
285 }
286
287 @Override
288 public void onFailure(Call<ResponseBody> call, Throwable t) {
289 showResult("onFailure" + t.getMessage());
290 }
291 });
292 }
293
294 private void get9() {
295 File file = new File(Environment.getExternalStorageDirectory(), "a.jpg");
296 File file1 = new File(Environment.getExternalStorageDirectory(), "d.jpg");
297 MultipartBody.Builder builder = new MultipartBody.Builder();
298 RequestBody body = MultipartBody.create(MultipartBody.FORM, file);
299 RequestBody body1 = MultipartBody.create(MultipartBody.FORM, file1);
300 MultipartBody multipartBody = builder
301 .addFormDataPart("file", file.getName(), body)
302 .addFormDataPart("file", file1.getName(), body1)
303 .addFormDataPart("username", "zxn123")
304 .setType(MultipartBody.FORM)
305 .build();
306
307 // String baseUrl = "http://192.168.1.102/";
308 String baseUrl = "http://169.254.38.24/";
309 new Retrofit.Builder()
310 .baseUrl(baseUrl)
311 .client(okHttpClient)
312 .build()
313 .create(NetService.class)
314 .uploadFilesByody(multipartBody)
315 .enqueue(new Callback<ResponseBody>() {
316 @Override
317 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
318 try {
319 showResult("onResponse" + response.body().string());
320 } catch (IOException e) {
321 e.printStackTrace();
322 }
323 }
324
325 @Override
326 public void onFailure(Call<ResponseBody> call, Throwable t) {
327 showResult("onFailure" + t.getMessage());
328 }
329 });
330
331 }
332
333 private void get8() {
334 //指定上传文件
335 File file = new File(Environment.getExternalStorageDirectory(), "3.jpg");
336 // RequestBody body = RequestBody.create(MediaType.parse("multipart/form-data"), file);
337
338 //封装请求体
339 // RequestBody body = RequestBody.create(MediaType.parse("application/otcet-stream"), file);
340 RequestBody body = MultipartBody.create(MultipartBody.FORM, file);
341 MultipartBody.Part part = MultipartBody.Part.createFormData("file", file.getName(), body);
342
343
344 //http://192.168.1.100/MyUploadServer/servlet/UpLoadFileServlet
345 // String baseUrl = "http://192.168.1.102/";
346 String baseUrl = "http://169.254.38.24/";
347
348 new Retrofit.Builder()
349 .baseUrl(baseUrl)
350 .client(okHttpClient)
351 .build()
352 .create(NetService.class)
353 .postUpLoadFile(part)
354 .enqueue(new Callback<ResponseBody>() {
355 @Override
356 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
357 try {
358 showResult("onResponse" + response.body().string());
359 } catch (IOException e) {
360 e.printStackTrace();
361 }
362 }
363
364 @Override
365 public void onFailure(Call<ResponseBody> call, Throwable t) {
366 showResult("onFailure" + t.getMessage());
367 }
368 });
369 }
370
371 private void get7() {
372 // String baseUrl = "http://v5.pc.duomi.com/search-ajaxsearch-searchall?kw=liedehua&pi=1&pz=10";
373 String baseUrl = "http://v5.pc.duomi.com/";
374 new Retrofit.Builder()
375 .baseUrl(baseUrl)
376 .client(okHttpClient)
377 .build()
378 .create(NetService.class)
379 .getSearchByPost(new HashMap<String, String>() {
380 {
381 put("kw", "liedehua");
382 put("pi", "1");
383 put("pz", "15");
384 }
385 }).enqueue(new Callback<ResponseBody>() {
386 @Override
387 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
388 try {
389 showResult("onResponse" + response.body().string());
390 } catch (IOException e) {
391 e.printStackTrace();
392 }
393 }
394
395 @Override
396 public void onFailure(Call<ResponseBody> call, Throwable t) {
397 showResult("onFailure" + t.getMessage());
398 }
399 });
400 }
401
402 private void get6() {
403 // String baseUrl = "http://cache.video.iqiyi.com/jp/avlist/202861101/1/?callback=jsonp9";
404 String baseUrl = "http://cache.video.iqiyi.com/";
405 new Retrofit.Builder()
406 .baseUrl(baseUrl)
407 .client(okHttpClient)
408 .build()
409 .create(NetService.class)
410 .getJpByPost("jsonp9")
411 .enqueue(new Callback<ResponseBody>() {
412 @Override
413 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
414 try {
415 showResult("onResponse" + response.body().string());
416 } catch (IOException e) {
417 e.printStackTrace();
418 }
419 }
420
421 @Override
422 public void onFailure(Call<ResponseBody> call, Throwable t) {
423 showResult("onFailure" + t.getMessage());
424 }
425 });
426
427 }
428
429 private void get4() {
430 String baseUrl = "http://api.immedc.com/";
431 new Retrofit.Builder()
432 .baseUrl(baseUrl)
433 .client(okHttpClient)
434 .build()
435 .create(NetService.class)
436 .getStartBannerResponseBody()
437 .enqueue(new Callback<ResponseBody>() {
438 @Override
439 public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
440 try {
441 showResult("onResponse" + response.body().string());
442 } catch (IOException e) {
443 e.printStackTrace();
444 }
445 }
446
447 @Override
448 public void onFailure(Call<ResponseBody> call, Throwable t) {
449 showResult("onFailure" + t.getMessage());
450 }
451 });
452
453 }
454
455 private void get5() {
456 final String baseUrl = "http://www.weather.com.cn/";
457 new Thread(new Runnable() {
458 @Override
459 public void run() {
460 try {
461 final Weather weather = new Retrofit.Builder()
462 .baseUrl(baseUrl)
463 .addConverterFactory(GsonConverterFactory.create())
464 .client(okHttpClient)
465 .build()
466 .create(NetService.class)
467 .getWeather()
468 .execute().body();
469 MainActivity.this.runOnUiThread(new Runnable() {
470 @Override
471 public void run() {
472 showResult(weather.toString());
473 }
474 });
475 } catch (IOException e) {
476 e.printStackTrace();
477 }
478 }
479 }).start();
480 }
481
482 private void get3() {
483 String baseUrl = "http://www.weather.com.cn/";
484 // String url = "http://www.weather.com.cn/data/sk/101010100.html";
485 String url = "data/sk/101010100.html";
486 new Retrofit.Builder().baseUrl(baseUrl)
487 .client(okHttpClient)
488 .addConverterFactory(GsonConverterFactory.create())
489 .build()
490 .create(NetService.class)
491 .getWeather(url)
492 .enqueue(new Callback<Weather>() {
493 @Override
494 public void onResponse(Call<Weather> call, Response<Weather> response) {
495 showResult("onResponse" + response.body().toString());
496 }
497
498 @Override
499 public void onFailure(Call<Weather> call, Throwable t) {
500 showResult("onFailure" + t.getMessage());
501 }
502 });
503 }
504
505 private void get2() {
506 String baseUrl = "http://www.kuaidi100.com/";
507 new Retrofit.Builder()
508 .baseUrl(baseUrl)
509 .client(okHttpClient)
510 .addConverterFactory(GsonConverterFactory.create())
511 .build().create(NetService.class)
512 .getQueryInfo(new HashMap<String, String>() {
513 {
514 put("type", "yuantong");
515 put("postid", "500379523313");
516 }
517 }).enqueue(new Callback<QueryInfo>() {
518 @Override
519 public void onResponse(Call<QueryInfo> call, Response<QueryInfo> response) {
520 showResult("onResponse" + response.body().toString());
521 }
522
523 @Override
524 public void onFailure(Call<QueryInfo> call, Throwable t) {
525 showResult("onResponse" + t.getMessage());
526 }
527 });
528 }
529
530 private void get1() {
531 String baseUrl = "http://m2.qiushibaike.com/";
532 new Retrofit.Builder().baseUrl(baseUrl)
533 .addConverterFactory(GsonConverterFactory.create())
534 .client(okHttpClient)
535 .build()
536 .create(NetService.class)
537 .getArticles("latest", 1)
538 .enqueue(new Callback<QiushiModel>() {
539 @Override
540 public void onResponse(Call<QiushiModel> call, Response<QiushiModel> response) {
541 showResult("onResponse" + response.body().toString());
542 }
543
544 @Override
545 public void onFailure(Call<QiushiModel> call, Throwable t) {
546 showResult("onFailure" + t.getMessage());
547 }
548 });
549 }
550
551 private void get0() {
552 String url = "http://www.weather.com.cn/";
553 Retrofit.Builder builder = new Retrofit.Builder();
554 builder.baseUrl(url)
555 .client(okHttpClient)
556 .addConverterFactory(GsonConverterFactory.create())
557 .build().create(NetService.class).getWeather().enqueue(new Callback<Weather>() {
558 @Override
559 public void onResponse(Call<Weather> call, Response<Weather> response) {
560 Weather body = response.body();
561 showResult(body.toString());
562 }
563
564 @Override
565 public void onFailure(Call<Weather> call, Throwable t) {
566 showResult(t.getMessage());
567 }
568 });
569 }
570
571 private void showResult(String result) {
572 String mResult = itemName + result;
573 tv_content.setText(mResult);
574 Toast.makeText(this, mResult, Toast.LENGTH_SHORT).show();
575 Log.i(TAG, mResult);
576 }
577 }
自定义接口方法，用于存放网络请求方法
1 import java.util.List;
2 import java.util.Map;
3
4 import okhttp3.MultipartBody;
5 import okhttp3.RequestBody;
6 import okhttp3.ResponseBody;
7 import retrofit2.Call;
8 import retrofit2.http.Body;
9 import retrofit2.http.Field;
10 import retrofit2.http.FieldMap;
11 import retrofit2.http.FormUrlEncoded;
12 import retrofit2.http.GET;
13 import retrofit2.http.Multipart;
14 import retrofit2.http.POST;
15 import retrofit2.http.Part;
16 import retrofit2.http.PartMap;
17 import retrofit2.http.Path;
18 import retrofit2.http.Query;
19 import retrofit2.http.QueryMap;
20 import retrofit2.http.Streaming;
21 import retrofit2.http.Url;
22
23 /**
24 * 创建接口，用于存放网络请求的方法。
25 */
26
27 public interface NetService {
28
29 @GET("data/sk/101010100.html")
30 Call<Weather> getWeather();
31
32 @GET("article/list/{type}?")
33 Call<QiushiModel> getArticles(@Path("type") String type, @Query("page") int page);
34
35 @GET("query")
36 Call<QueryInfo> getQueryInfo(@QueryMap Map<String, String> map);
37
38 @GET
39 Call<Weather> getWeather(@Url String url);
40
41 @GET("/restapi/loading/getStartBanner")
42 Call<ResponseBody> getStartBannerResponseBody();
43
44 @FormUrlEncoded
45 @POST("jp/avlist/202861101/1/")
46 Call<ResponseBody> getJpByPost(@Field("callback") String callback);
47
48 @FormUrlEncoded
49 @POST("search-ajaxsearch-searchall")
50 Call<ResponseBody> getSearchByPost(@FieldMap Map<String, String> map);
51
52 @Multipart
53 @POST("MyUploadServer/servlet/UpLoadFileServlet")
54 Call<ResponseBody> postUpLoadFile(@Part() MultipartBody.Part requestBody);
55
56 @POST("MyUploadServer/servlet/MyUploadServlet")
57 Call<ResponseBody> uploadFilesByody(@Body MultipartBody multipartBody);
58
59 @Multipart
60 @POST("MyUploadServer/servlet/MyUploadServlet")
61 Call<ResponseBody> uploadFilesByPart(@Part() List<MultipartBody.Part> parts);
62
63 @Multipart
64 @POST("MyUploadServer/servlet/MyUploadServlet")
65 Call<ResponseBody> uploadFilesByPartMap(@PartMap() Map<String, RequestBody> map);
66
67 @Streaming
68 @GET
69 Call<ResponseBody> download(@Url String fileUrl);
70
71 }
需要写一个网络访问数据的解析类就可以使用了
在清单中加入权限
1 <uses-permission android:name="android.permission.INTERNET"/> 2 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 3 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
在build中加入依赖
1 compile ‘com.squareup.retrofit2:retrofit:2.3.0‘ 2 // compile ‘com.squareup.okhttp3:okhttp:3.8.1‘ 3 compile ‘com.squareup.retrofit2:converter-gson:2.0.2‘ 4 compile project(‘:library-okhttputils‘)
原文：http://www.cnblogs.com/wyv587/p/7953651.html