Retrofit学习(五)-文件上传
Retrofit学习(一)-集成
//www.greatytc.com/p/86e5cddcc753
Retrofit学习(二)-get请求
//www.greatytc.com/p/cdde02a0777c
Retrofit学习(三)-普通post请求
//www.greatytc.com/p/7f252d10fd41
Retrofit学习(四)-下载文件
//www.greatytc.com/p/f61645a770ae
Retrofit学习(五)-文件上传
//www.greatytc.com/p/ca0cb8640c8f
单个文件上传 @Multipart @Part
- 接口
@Multipart
@POST("user/imgUpLoad")
// Call<String> uploadOne(@Part("sign") String sign,@Part("appKey") String appKey,@Part("osName") String osName,@Part("memberNo") String memberNo, @Part MultipartBody.Part file);
// Call<String> uploadOne(@PartMap Map<String,String> params, @Part MultipartBody.Part file);
// Call<String> uploadOne(@Query("sign") String sign, @Query("appKey") String appKey, @Query("osName") String osName, @Query("memberNo") String memberNo, @Part MultipartBody.Part file);
Call<String> uploadOne(@QueryMap Map<String,String> params, @Part MultipartBody.Part file);
需要添加@Multipart表示支持文件上传的表单，Content-Type: multipart/form-data
以上4种写法都可以
普通参数@Query，@QueryMap
或者也@Part，这样
文件要使用
@Part MultipartBody.Part file
- 实现
String path = "/storage/emulated/0/Pictures/1477553156332.jpg";
File file = new File(path);
/**
* 创建请求体，内容是文件
*/
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
// final RequestBody requestFile = RequestBody.create(MediaType.parse("image/*"), file);
/**
* 创建多部分拿上面的请求体做参数
* img 是上传是的参数key,根据需要更改为自己的
*/
MultipartBody.Part body =
MultipartBody.Part.createFormData("img", file.getName(), requestFile);
Map<String,String> params = new HashMap<>();
params.put("sign", SIGN);
params.put("appKey", APP_KEY);
params.put("osName", OS_NAME);
params.put("memberNo", "13410111258");
/**
* 初始化
*/
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(ScalarsConverterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.build();
UploadService uploadService = retrofit.create(UploadService.class);
Call<String> call = uploadService.uploadOne(params,body);
// Call<String> call = uploadService.uploadOne(SIGN,APP_KEY,OS_NAME,"13410111258",body);
call.enqueue(new Callback<String>() {
@Override
public void onResponse(Call<String> call, Response<String> response) {
L.d("vivi",response.message()+" "+response.body());
}
@Override
public void onFailure(Call<String> call, Throwable t) {
t.printStackTrace();
L.d("vivi",t.getMessage());
}
});
其中创建Part部分为重要
String path = "/storage/emulated/0/Pictures/1477553156332.jpg";
File file = new File(path);
/**
* 创建请求体，内容是文件
*/
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
// final RequestBody requestFile = RequestBody.create(MediaType.parse("image/*"), file);
/**
* 创建多部分拿上面的请求体做参数
* img 是上传是的参数key,根据需要更改为自己的
*/
MultipartBody.Part body =
MultipartBody.Part.createFormData("img", file.getName(), requestFile);
结果
OK {"code":"M100001","msg":"成功","info":{"successMessage":"更改成功","memberHeadImg":"http://10.18.200.24:8080/image/cd-img/20161027183654155618134101112581.jpg"},"sign":""}
- 再来一个 单个文件上传
@Multipart
@POST("file//upload")
Call<String> upload2(@Part MultipartBody.Part file);
- 实现
/**
* 单个 文件上传
* <p>
* /storage/emulated/0/Pictures/1477553156332.jpg
* /storage/emulated/0/Pictures/1474366085035.jpg
* /storage/emulated/0/Pictures/1474522550302.jpg
* /storage/emulated/0/Pictures/1474423699408.jpg
* /storage/emulated/0/Pictures/1477553128722.jpg
* /storage/emulated/0/Pictures/1474365776853.jpg
*/
private void uploadOne2() {
String baseUrl = "http://10.18.200.140:8080/hellosp/";
Retrofit retrofit = new Retrofit.Builder().baseUrl(baseUrl).addConverterFactory(ScalarsConverterFactory.create()).addConverterFactory(GsonConverterFactory.create()).build();
UploadService uploadService = retrofit.create(UploadService.class);
String path = "/storage/emulated/0/Pictures/1477553156332.jpg";
File file = new File(path);
RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
/**
* 创建多部分拿上面的请求体做参数
* img 是上传是的参数key,根据需要更改为自己的
*/
MultipartBody.Part body = MultipartBody.Part.createFormData("file", file.getName(), requestBody);
Call<String> call = uploadService.upload2(body);
call.enqueue(new Callback<String>() {
@Override
public void onResponse(Call<String> call, Response<String> response) {
L.d("vivi", response.message() + " " + response.body());
}
@Override
public void onFailure(Call<String> call, Throwable t) {
t.printStackTrace();
L.d("vivi", t.getMessage());
}
});
}
- 也可以另一种写法
/**
* 单个 文件上传
* /storage/emulated/0/Pictures/1477553156332.jpg
* /storage/emulated/0/Pictures/1474366085035.jpg
* /storage/emulated/0/Pictures/1474522550302.jpg
* /storage/emulated/0/Pictures/1474423699408.jpg
* /storage/emulated/0/Pictures/1477553128722.jpg
* /storage/emulated/0/Pictures/1474365776853.jpg
*/
private void uploadOne3() {
String baseUrl = "http://10.18.200.140:8080/hellosp/";
Retrofit retrofit = new Retrofit.Builder().baseUrl(baseUrl).addConverterFactory(ScalarsConverterFactory.create()).addConverterFactory(GsonConverterFactory.create()).build();
UploadService uploadService = retrofit.create(UploadService.class);
String path = "/storage/emulated/0/Pictures/1477553156332.jpg";
File file = new File(path);
RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
Map<String, RequestBody> params = new HashMap<>();
params.put("file\"; filename=\"" + file.getName() + "", requestBody);
Call<String> call = uploadService.upload3(params);
call.enqueue(new Callback<String>() {
@Override
public void onResponse(Call<String> call, Response<String> response) {
L.d("vivi", response.message() + " " + response.body());
}
@Override
public void onFailure(Call<String> call, Throwable t) {
t.printStackTrace();
L.d("vivi", t.getMessage());
}
});
}
看到不同了吗？参数的拼接不同
第一种
/**
* 创建请求体，内容是文件
*/
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
// final RequestBody requestFile = RequestBody.create(MediaType.parse("image/*"), file);
/**
* 创建多部分拿上面的请求体做参数
* img 是上传是的参数key,根据需要更改为自己的
*/
MultipartBody.Part body =
MultipartBody.Part.createFormData("img", file.getName(), requestFile);
第二种
RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
Map<String, RequestBody> params = new HashMap<>();
params.put("file\"; filename=\"" + file.getName() + "", requestBody);
第二种比较适合多文件上传
file 是参数
多个文件上传
- 接口
@Multipart
@POST("file//upload")
Call<String> upload22(@PartMap Map<String,RequestBody> params);
- 实现
/**
* 文件上传
* <p>
* /storage/emulated/0/Pictures/1477553156332.jpg
* /storage/emulated/0/Pictures/1474366085035.jpg
* /storage/emulated/0/Pictures/1474522550302.jpg
* /storage/emulated/0/Pictures/1474423699408.jpg
* /storage/emulated/0/Pictures/1477553128722.jpg
* /storage/emulated/0/Pictures/1474365776853.jpg
*/
private void uploadOne22() {
String baseUrl = "http://10.18.200.140:8080/hellosp/";
Retrofit retrofit = new Retrofit.Builder().baseUrl(baseUrl).addConverterFactory(ScalarsConverterFactory.create()).addConverterFactory(GsonConverterFactory.create()).build();
UploadService uploadService = retrofit.create(UploadService.class);
String path = "/storage/emulated/0/Pictures/1477553156332.jpg";
String path2 = "/storage/emulated/0/Pictures/1474366085035.jpg";
// String path3 = "/storage/emulated/0/Pictures/1474522550302.jpg";
String path4 = "/storage/emulated/0/Pictures/1474423699408.jpg";
String path5 = "/storage/emulated/0/Pictures/1477553128722.jpg";
String path6 = "/storage/emulated/0/Pictures/1474365776853.jpg";
File file = new File(path);
File file2 = new File(path2);
// File file3 = new File(path3);
File file4 = new File(path4);
File file5 = new File(path5);
File file6 = new File(path6);
File[] files = new File[]{file, file2, file4, file5, file6};
Map<String, RequestBody> params = new HashMap<>();
for(int i = 0; i < files.length; i++) {
RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), files[i]);
params.put("file\"; filename=\"" + files[i].getName() + "", requestBody);
}
/* *//**
* 创建多部分拿上面的请求体做参数
* img 是上传是的参数key,根据需要更改为自己的
*//*
MultipartBody.Part body =
MultipartBody.Part.createFormData("file", file.getName(), requestBody);
*/
Call<String> call = uploadService.upload22(params);
call.enqueue(new Callback<String>() {
@Override
public void onResponse(Call<String> call, Response<String> response) {
L.d("vivi", response.message() + " " + response.body());
}
@Override
public void onFailure(Call<String> call, Throwable t) {
t.printStackTrace();
L.d("vivi", t.getMessage());
}
});
}
基本的应用就算完成了
源码：
https://github.com/ln0491/RetrofitDemo2
上传服务器代码
https://github.com/ln0491/hellosp
半吊子springMVC写的有需要的就用吧，上传路径自己改下
在UploadController-addUser方法
