第十周总结
本周是冲刺第二周，基本完成了记录功能的页面，就是后台上传Servlet上没有做好。本周写了相当一部分量的代码，但这里是包括其他学科的代码，比如php。
印象最深的还是OKHttp的使用，如何导入请参考博客：https://www.cnblogs.com/20183711PYD/p/12763626.html
1 //OKHttp 2 OkHttpClient client = new OkHttpClient(); 3 MultipartBody.Builder builder = new MultipartBody.Builder(); 4 builder.setType(MultipartBody.FORM); 5 builder.addFormDataPart("title",title_str); 6 builder.addFormDataPart("note",note_str); 7 builder.addFormDataPart("see",see_str); 8 9 int pic_i=0; 10 //本地Tomcat，注意不能写localhost，写本机的ip地址 11 String URL="http://192.168.101.18:8080/CloudNote/CloudServlet"; 12 for(HashMap<String,Bitmap>pic:imageItem){ 13 Set<String> set=pic.keySet(); 14 for(String key:set){ 15 if(pic_i==0){ 16 //跳过默认的+号图片 17 pic_i++; 18 continue; 19 } 20 //取出bitmap，转换成file，上传 21 else if(pic_i==1){ 22 Bitmap fbm1 = pic.get(key); 23 File dofile = doImage(fbm1); 24 builder.addFormDataPart("image1",dofile.getName(),RequestBody.create(PNG,dofile)); 25 pic_i++; 26 } 27 else if(pic_i==2){ 28 Bitmap fbm2 = pic.get(key); 29 File dofile = doImage(fbm2); 30 builder.addFormDataPart("image2",dofile.getName(),RequestBody.create(PNG,dofile)); 31 pic_i++; 32 } 33 else if(pic_i==3){ 34 Bitmap fbm3 = pic.get(key); 35 File dofile = doImage(fbm3); 36 builder.addFormDataPart("image3",dofile.getName(),RequestBody.create(PNG,dofile)); 37 pic_i++; 38 } 39 } 40 } 41 RequestBody requestBody = builder.build(); 42 Request.Builder RequestBuilder = new Request.Builder(); 43 RequestBuilder.url(URL); 44 RequestBuilder.post(requestBody); 45 final Request request=RequestBuilder.build(); 46 client.newCall(request).enqueue(new Callback() { 47 @Override 48 public void onFailure(@NotNull Call call, @NotNull IOException e) { 49 Log.i("TRYxxx","连接失败"); 50 e.printStackTrace(); 51 } 52 53 @Override 54 public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException { 55 Log.i("TRYxxx","连接的消息"+response.message()); 56 if(response.isSuccessful()){ 57 Log.i("TRYxxx","连接成功获取的内容"+response.body().string()); 58 Log.i("TRYyyy",title_str); 59 Log.i("TRYyyy",note_str); 60 Log.i("TRYyyy",see_str); 61 } 62 } 63 });
以前曾写过Android连接servlet，但那次用的是HttpURLConnection，文本传输还是可以做得到的。这次因为附上图片传输，我选择使用OKHttp来完成，这一周有一小半时间在学习这东西。。。。
