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

//OKHttp
                OkHttpClient client = new OkHttpClient();
                MultipartBody.Builder builder = new MultipartBody.Builder();
                builder.setType(MultipartBody.FORM);
                builder.addFormDataPart("title",title_str);
                builder.addFormDataPart("note",note_str);
                builder.addFormDataPart("see",see_str);

                int pic_i=0;
                //本地Tomcat，注意不能写localhost，写本机的ip地址
                String URL="http://192.168.101.18:8080/CloudNote/CloudServlet";
                for(HashMap<String,Bitmap>pic:imageItem){
                    Set<String> set=pic.keySet();
                    for(String key:set){
                        if(pic_i==0){
                            //跳过默认的+号图片
                            pic_i++;
                            continue;
                        }
                        //取出bitmap，转换成file，上传
                        else if(pic_i==1){
                            Bitmap fbm1 = pic.get(key);
                            File dofile = doImage(fbm1);
                            builder.addFormDataPart("image1",dofile.getName(),RequestBody.create(PNG,dofile));
                            pic_i++;
                        }
                        else if(pic_i==2){
                            Bitmap fbm2 = pic.get(key);
                            File dofile = doImage(fbm2);
                            builder.addFormDataPart("image2",dofile.getName(),RequestBody.create(PNG,dofile));
                            pic_i++;
                        }
                        else if(pic_i==3){
                            Bitmap fbm3 = pic.get(key);
                            File dofile = doImage(fbm3);
                            builder.addFormDataPart("image3",dofile.getName(),RequestBody.create(PNG,dofile));
                            pic_i++;
                        }
                    }
                }
                RequestBody requestBody = builder.build();
                Request.Builder RequestBuilder = new Request.Builder();
                RequestBuilder.url(URL);
                RequestBuilder.post(requestBody);
                final Request request=RequestBuilder.build();
                client.newCall(request).enqueue(new Callback() {
                    @Override
                    public void onFailure(@NotNull Call call, @NotNull IOException e) {
                        Log.i("TRYxxx","连接失败");
                        e.printStackTrace();
                    }

                    @Override
                    public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
                        Log.i("TRYxxx","连接的消息"+response.message());
                        if(response.isSuccessful()){
                            Log.i("TRYxxx","连接成功获取的内容"+response.body().string());
                            Log.i("TRYyyy",title_str);
                            Log.i("TRYyyy",note_str);
                            Log.i("TRYyyy",see_str);
                        }
                    }
                });

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。。。。