Okhttp3 post上传文件的时候携带文件的参数怎么做啊 下面是接口文档和练习的demo求教！谢谢

public class OkhttpActivity extends AppCompatActivity implements View.OnClickListener {

private Button buttonget, button_post, button_getparams, button_posttparams, button_postfile;

private TextView text;

private static final String TAG = "OriginNetWorkActivity";

private static final String URL = "http://api.nongfucang.cn/home/apitest/member_upload_img";

private static final String Token = "4tFZb5UUk5N8GLCYU3aeselQLFRNQEOlyUL9p6uaBHIHTL6dfG";

private RxPermissions rxPermissions;

@Override

protected void onCreate(@Nullable Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_okhttp);

init();

}

public void init() {

buttonget = findViewById(R.id.button);

button_post = findViewById(R.id.button_post);

button_posttparams = findViewById(R.id.button_posttparams);

text = findViewById(R.id.text);

button_getparams = findViewById(R.id.button_getparams);

button_postfile = findViewById(R.id.button_postfile);

button_getparams.setOnClickListener(this);

buttonget.setOnClickListener(this);

button_post.setOnClickListener(this);

button_posttparams.setOnClickListener(this);

button_postfile.setOnClickListener(this);

rxPermissions = new RxPermissions(this);

rxPermissions

.request(Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE)

.subscribe(granted -> {

if (granted) {

} else {

Toast.makeText(this, "有权限未通过无法开启", Toast.LENGTH_SHORT).show();

}

});

}

@Override

public void onClick(View v) {

switch (v.getId()) {

case R.id.button:

getData();

break;

case R.id.button_post:

postData();

break;

case R.id.button_getparams:

break;

case R.id.button_posttparams:

HashMap params = new HashMap<>();

params.put("token", Token);

File file = new File("/storage/emulated/0/Android/data/com.nfc.shop/cache/1581842329846.jpg");

File[] files = new File[]{file};

String[] name = new String[]{"image"};

postFile(URL, files, name, params);

break;

case R.id.button_postfile:

break;

}

}

private void postFile(String url, File[] files, String[] fileKeys, Map params) {

if (params == null) {

params = new HashMap<>();

}

OkHttpClient okHttpClient = new OkHttpClient.Builder()

.connectTimeout(10000, TimeUnit.SECONDS)

.build();

FormBody.Builder builder = new FormBody.Builder();

for (Map.Entry map : params.entrySet()) {

String key = map.getKey();

String value;

/**

* 判断值是否是空的

*/

if (map.getValue() == null) {

value = "";

} else {

value = map.getValue();

}

/**

* 把key和value添加到formbody中

*/

builder.add(key, value);

}

RequestBody requestBody = builder.build();

MultipartBody.Builder multipartBody = new MultipartBody.Builder();

multipartBody.setType(MultipartBody.ALTERNATIVE)

.addPart(requestBody);

if (files != null) {

RequestBody fileBody = null;

for (int i = 0; i < files.length; i++) {

File file = files[i];

String fileName = file.getName();

fileBody = RequestBody.create(MediaType.parse("image/*"), file);

//TODO 根据文件名设置contentType

multipartBody.addPart(Headers.of("Content-Disposition",

"form-data; name=\"" + fileKeys[i] + "\"; filename=\"" + fileName + "\""),

fileBody);

}

Request request = new Request.Builder()

.url(url)

.post(multipartBody.build())

.build();

Call call = okHttpClient.newCall(request);

call.enqueue(new Callback() {

@Override

public void onFailure(Call call, IOException e) {

}

@Override

public void onResponse(Call call, Response response) throws IOException {

ResponseBody body = response.body();

assert body != null;

String s = body.string();

setText(s);

}

});

}

// OkHttpClient okHttpClient = new OkHttpClient.Builder()

// .connectTimeout(10000, TimeUnit.SECONDS)

// .build();

// File file = new File("/storage/sdcard0/Pictures/1577331681917.jpg");

// MediaType type = MediaType.parse("image/jpeg");

// RequestBody Body = RequestBody.create(file, type);

// RequestBody requestBody = new MultipartBody.Builder()

// .addFormDataPart("File", file.getName(), Body)

// .build();

// Request request = new Request.Builder()

// .post(requestBody)

// .url()

// .build();

// Call call = okHttpClient.newCall(request);

// call.enqueue(new Callback() {

// @Override

// public void onFailure(Call call, IOException e) {

//

// }

//

// @Override

// public void onResponse(Call call, Response response) throws IOException {

//

// }

// });

}

private String guessMimeType(String fileName) {

FileNameMap fileNameMap = URLConnection.getFileNameMap();

String contentTypeFor = fileNameMap.getContentTypeFor(fileName);

if (contentTypeFor == null) {

contentTypeFor = "application/octet-stream";

}

return contentTypeFor;

}

private void postData() {

OkHttpClient okHttpClient = new OkHttpClient.Builder()

.connectTimeout(1000, TimeUnit.SECONDS)

.build();

Map params = new HashMap<>();

params.put("goodsId", "9649");

FormBody.Builder builder = new FormBody.Builder();

// Set> entries = params.entrySet();

// for (Map.Entry entry : entries) {

// String key = entry.getKey();

// String value;

// if(entry.getValue()== null){

// value = "";

// }else{

// value = entry.getValue();

// }

// builder.add(key,value);

// }

for (Map.Entry map : params.entrySet()) {

String key = map.getKey();

String value;

/**

* 判断值是否是空的

*/

if (map.getValue() == null) {

value = "";

} else {

value = map.getValue();

}

/**

* 把key和value添加到formbody中

*/

builder.add(key, value);

}

RequestBody requestBody = builder.build();

Request request = new Request.Builder()

.post(requestBody)

.url("https://www.sunofbeach.net/shop/api/goods/relative")

.build();

Call call = okHttpClient.newCall(request);

call.enqueue(new Callback() {

@Override

public void onFailure(Call call, IOException e) {

}

@Override

public void onResponse(Call call, Response response) throws IOException {

if (response.code() == 200) {

ResponseBody body = response.body();

assert body != null;

String s = body.string();

setText(s);

}

}

});

}

private void getData() {

OkHttpClient okHttpClient = new OkHttpClient.Builder()

.connectTimeout(10000, TimeUnit.SECONDS)

.build();

Request request = new Request.Builder()

.get()

.url("https://www.sunofbeach.net/shop/api/discovery/categories")

.build();

Call call = okHttpClient.newCall(request);

call.enqueue(new Callback() {

@Override

public void onFailure(Call call, IOException e) {

}

@Override

public void onResponse(Call call, Response response) throws IOException {

if (response.code() == 200) {

ResponseBody body = response.body();

assert body != null;

String s = body.string();

setText(s);

}

}

});

}

public void setText(final String s) {

runOnUiThread(new Runnable() {

@Override

public void run() {

text.setText(s);

}

});

}

}

Charles抓包的结果是

{

"code": 201,

"msg": "token 不能为空"

}