效果(服务器是自己的，地址自己找)
image.png
思路
1、添加依赖
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation "io.reactivex.rxjava2:rxjava:2.1.3"
implementation "io.reactivex.rxjava2:rxandroid:2.0.1"
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.4.0'
implementation "com.github.bumptech.glide:glide:4.8.0"
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
2、添加权限
网络、读写权限。
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
3、XML布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/upload_bt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="OKHTTP上传" />
<Button
android:id="@+id/retro_upload_bt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/upload_bt"
android:text="Retrofit上传" />
<TextView
android:id="@+id/upload_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/retro_upload_bt"
android:gravity="center"
android:text="显示文本"
android:textSize="18sp" />
<ImageView
android:id="@+id/upload_image"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_below="@id/upload_tv"
android:layout_centerHorizontal="true"
android:scaleType="centerCrop"
android:src="@drawable/ic_launcher_background" />
</RelativeLayout>
4、动态权限获取
ActivityCompat.requestPermissions(参数1，参数2，参数3)，参数3自定义即可，这个参数体现在onRequestPermissionsResult（）重写的函数。
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
reUpLoadFile();
} else {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 202);
}
5、Retrofit上传文件
// retrofit 对象
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(UpLoadServer.baseUrl)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.build();
//接口对象
UpLoadServer server = retrofit.create(UpLoadServer.class);
//获取post请求参数 key 和 file
file = new File(Environment.getExternalStorageDirectory() + "/Pictures/Screenshots/a.png");
RequestBody requestBody = RequestBody.create(MediaType.parse("image/png"), file);
RequestBody body = RequestBody.create(MediaType.parse("multipart/form-data"), "1001");
MultipartBody.Part mulbody = MultipartBody.Part.createFormData("file", this.file.getName(), requestBody);//获取上传文件的请求体
//call对象
final Observable<UpLoadBean> upLoad = server.upLoad(body,mulbody);
//call执行请求
upLoad.subscribeOn(Schedulers.io())//子线程
.observeOn(AndroidSchedulers.mainThread()) //主线程
.subscribe(new Observer<UpLoadBean>() {//订阅返回数据
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(UpLoadBean upLoadBean) {
if (upLoadBean != null) {
int code = upLoadBean.getCode();
String s = String.valueOf(code);
if (s.equals("200")) {
Toast.makeText(MainActivity.this, "加载成功" + upLoadBean.getCode(), Toast.LENGTH_SHORT).show();
uploadTv.setText(upLoadBean.getRes());
Glide.with(MainActivity.this).load(upLoadBean.getData().getUrl()).into(uploadImage);
} else {
Toast.makeText(MainActivity.this, "状态码有误" + upLoadBean.getCode(), Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(MainActivity.this, "上传失败" + upLoadBean.getCode(), Toast.LENGTH_SHORT).show();
}
}
@Override
public void onError(Throwable e) {
Toast.makeText(MainActivity.this, "解析失败" + e.getMessage(), Toast.LENGTH_SHORT).show();
}
@Override
public void onComplete() {
}
});
完整代码
MainActivity（OK上传也在其中没删除）
package com.mooc.uploadfile;
import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.Environment;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import com.bumptech.glide.Glide;
import com.google.gson.Gson;
import java.io.File;
import java.io.IOException;
import io.reactivex.Observable;
import io.reactivex.Observer;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;
import io.reactivex.schedulers.Schedulers;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;
import retrofit2.http.Multipart;
public class MainActivity extends AppCompatActivity {
private Button uploadBt;
private Button reUploadBt;
private TextView uploadTv;
private ImageView uploadImage;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
okUPLoad();//OK 上传
reTrofitLoad();//retrofit上传
}
private void reTrofitLoad() {
reUploadBt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkPermission_retrofit();//检查危险权限
}
});
}
private void okUPLoad() {
uploadBt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkPermission();//检查危险权限
}
});
}
private void checkPermission() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
try {
upLodeFile();
} catch (IOException e) {
e.printStackTrace();
}
} else {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 201);
}
}
private void checkPermission_retrofit() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
reUpLoadFile();
} else {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 202);
}
}
private void reUpLoadFile() {
// retrofit 对象
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(UpLoadServer.baseUrl)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.build();
//接口对象
UpLoadServer server = retrofit.create(UpLoadServer.class);
//获取post请求参数 key 和 file
file = new File(Environment.getExternalStorageDirectory() + "/Pictures/Screenshots/a.png");
RequestBody requestBody = RequestBody.create(MediaType.parse("image/png"), file);
RequestBody body = RequestBody.create(MediaType.parse("multipart/form-data"), "1001");
MultipartBody.Part mulbody = MultipartBody.Part.createFormData("file", this.file.getName(), requestBody);//获取上传文件的请求体
//call对象
final Observable<UpLoadBean> upLoad = server.upLoad(body,mulbody);
//call执行请求
upLoad.subscribeOn(Schedulers.io())//子线程
.observeOn(AndroidSchedulers.mainThread()) //主线程
.subscribe(new Observer<UpLoadBean>() {//订阅返回数据
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(UpLoadBean upLoadBean) {
if (upLoadBean != null) {
int code = upLoadBean.getCode();
String s = String.valueOf(code);
if (s.equals("200")) {
Toast.makeText(MainActivity.this, "加载成功" + upLoadBean.getCode(), Toast.LENGTH_SHORT).show();
uploadTv.setText(upLoadBean.getRes());
Glide.with(MainActivity.this).load(upLoadBean.getData().getUrl()).into(uploadImage);
} else {
Toast.makeText(MainActivity.this, "状态码有误" + upLoadBean.getCode(), Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(MainActivity.this, "上传失败" + upLoadBean.getCode(), Toast.LENGTH_SHORT).show();
}
}
@Override
public void onError(Throwable e) {
Toast.makeText(MainActivity.this, "解析失败" + e.getMessage(), Toast.LENGTH_SHORT).show();
}
@Override
public void onComplete() {
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
Log.e("tag", "onRequestPermissionsResult: " + requestCode);
if (grantResults != null && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "用户授权", Toast.LENGTH_SHORT).show();
try {
switch (requestCode) {
case 201:
upLodeFile();
break;
case 202:
break;
}
} catch (IOException e) {
e.printStackTrace();
}
} else {
Toast.makeText(this, "用户未授权", Toast.LENGTH_SHORT).show();
}
}
private File file;
private void upLodeFile() throws IOException {
file = new File(Environment.getExternalStorageDirectory() + "/Pictures/Screenshots/a.png");//获取目录（不加后面的字符串是你的根目录+后面是继续找的意思）
getFileLog();
//ok上传
/**
* ok上传文件实例
* 由于服务器暂停维护，接口无法访问
* 代码就这些
*/
//创建OK
OkHttpClient okHttpClient = new OkHttpClient.Builder().build();
//请求体
RequestBody requestBody = RequestBody.create(MediaType.parse("image/png"), file);
MultipartBody body = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("key", "1001") //post请求Key,value
.addFormDataPart("file", file.getName(), requestBody) //post请求Key,value
.build();
//构建请求
Request request = new Request.Builder()
// .url("http://yun918.cn/study/public/index.php/file_upload.php")
.url("http://yun918.cn/study/public/file_upload.php")
.post(body)
.build();
//call对象
Call call = okHttpClient.newCall(request);
//call执行请求
call.enqueue(new Callback() { //异步
@Override
public void onFailure(Call call, IOException e) {
Log.e("tag", "onFailure: " + e.getMessage());
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String json = response.body().string();
final UpLoadBean upLoadBean = new Gson().fromJson(json, UpLoadBean.class);
if (!TextUtils.isEmpty(json)) {
int code = upLoadBean.getCode();
String str = String.valueOf(code);
if (str.equals("200")) {
runOnUiThread(new Runnable() {
@Override
public void run() {
uploadTv.setText(upLoadBean.getRes());
Glide.with(MainActivity.this).load(upLoadBean.getData().getUrl()).into(uploadImage);
}
});
} else {
Toast.makeText(MainActivity.this, "上传失败", Toast.LENGTH_SHORT).show();
}
}
}
});
}
private void getFileLog() {
File absoluteFile = file.getAbsoluteFile();
String absolutePath = file.getAbsolutePath();
File canonicalFile = null;
try {
canonicalFile = file.getCanonicalFile();
} catch (IOException e) {
e.printStackTrace();
}
String canonicalPath = null;
try {
canonicalPath = file.getCanonicalPath();
} catch (IOException e) {
e.printStackTrace();
}
long freeSpace = file.getFreeSpace();
String parent = file.getParent();
File parentFile = file.getParentFile();
String path = file.getPath();
long totalSpace = file.getTotalSpace();
long usableSpace = file.getUsableSpace();
Log.e("tag", "absoluteFile: " + absoluteFile
+ "\t\n" + "absolutePath: " + absolutePath
+ "\t\n" + "canonicalFile: " + canonicalFile
+ "\t\n" + "canonicalPath: " + canonicalPath
+ "\t\n" + "freeSpace: " + freeSpace
+ "\t\n" + "parent: " + parent
+ "\t\n" + "parentFile: " + parentFile
+ "\t\n" + "path: " + path
+ "\t\n" + "totalSpace: " + totalSpace
+ "\t\n" + "usableSpace: " + usableSpace);
}
private void initView() {
uploadBt = (Button) findViewById(R.id.upload_bt);
reUploadBt = (Button) findViewById(R.id.retro_upload_bt);
uploadTv = (TextView) findViewById(R.id.upload_tv);
uploadImage = (ImageView) findViewById(R.id.upload_image);
}
}
接口
package com.mooc.uploadfile;
import io.reactivex.Observable;
import okhttp3.MultipartBody;
import okhttp3.RequestBody;
import retrofit2.http.Multipart;
import retrofit2.http.POST;
import retrofit2.http.Part;
public
/**
* @auther Administrator
* @date 2020/9/18
* @time 18:50
*/
interface UpLoadServer {
String baseUrl = "http://yun918.cn/study/";
@Multipart
@POST("public/file_upload.php")
Observable<UpLoadBean> upLoad(@Part("key")RequestBody key,@Part MultipartBody.Part file);
}
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