1.okhttp上傳文件步驟

public class ImageUpload{//1.創(chuàng)建對應的MediaTypeprivate static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");private final OkHttpClient client = new OkHttpClient();public void uploadImage(String userName,File file) throws NetworkException{//2.創(chuàng)建RequestBodyRequestBody fileBody = RequestBody.create(MEDIA_TYPE_PNG, file);//3.構建MultipartBodyRequestBody requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM).addFormDataPart("file", "testImage.png", fileBody).addFormDataPart("userName", userName).build();//4.構建請求Request request = new Request.Builder().url("http://xxxxx").post(requestBody).build();//5.發(fā)送請求Response response = client.newCall(request).execute();} }

2.常用MediaType類型

json : application/json xml : application/xml png : image/png jpg : image/jpeg gif : imge/gif

3.addFormDataPart是對addPart封裝：

addPart( Headers.of(“Content-Disposition”, “form-data; name=\”file\”;filename=\“testImage.png\""), RequestBody.create(MEDIA_TYPE_PNG, fileBody))addPart( Headers.of(“Content-Disposition”, “form-data; name=\”userName\”“), RequestBody.create(null, userName))

總結

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