提交2.0.9版本，添加请求头及优化图文上传

app/src/main/java/com/mylove/okhttp/MainActivity.java

@@ -67,7 +67,7 @@ public class MainActivity extends AppCompatActivity {
                             public void onSuccess() {
 //                                Intent intent = new Intent(MainActivity.this, DownloadActivity.class);
 //                                startActivity(intent);
-                                upload2();
+                                upload();
                             }
                         });
             }
@@ -200,7 +200,7 @@ public class MainActivity extends AppCompatActivity {
                 Jlog.d(entry.getKey() + "=" + entry.getValue());
             }
         }
-        OkHttpUtil.getInstance(this).url("https://mp.idimage.com.cn/expo-bossapi/studentInfo/upload").postFileText(oMap).async(new OnOkHttpListener<Object>() {
+        OkHttpUtil.getInstance(this).url("https://mp.idimage.com.cn/expo-bossapi/studentInfo/upload").postMultipart(null, oMap).async(new OnOkHttpListener<Object>() {
             @Override
             public void onCompleted() {