Android--okhttp与php交互，文件上传下载

okhttp配置：

okhttp的下载地址：http://square.github.io/okhttp/

okio的下载地址： https://github.com/square/okio

两个jar包导入到工程中，放在libs目录下，右键点击jar包，选择Add As Library就行了，两个包都要添加。

import java.io.FileOutputStream;    import java.io.IOException;    import android.Manifest;    import android.app.Activity;    import android.content.Intent;    import android.content.pm.PackageManager;    import android.graphics.Bitmap;    import android.net.Uri;    import android.os.Build;    import android.os.Environment;    import android.support.v4.app.ActivityCompat;    import android.support.v4.content.ContextCompat;    import android.support.v7.app.AppCompatActivity;    import android.os.Bundle;    import android.view.View;    import android.widget.Button;    import android.widget.ProgressBar;    import android.widget.TextView;    import android.widget.Toast;    import java.io.File;    import java.io.IOException;    import java.io.InputStream;    import java.util.concurrent.TimeUnit;    import okhttp3.Call;    import okhttp3.Callback;    import okhttp3.Interceptor;    import okhttp3.MediaType;    import okhttp3.MultipartBody;    import okhttp3.OkHttpClient;    import okhttp3.Request;    import okhttp3.RequestBody;    import okhttp3.Response;    import okhttp3.ResponseBody;    import okio.Buffer;    import okio.BufferedSink;    import okio.BufferedSource;    import okio.ForwardingSink;    import okio.ForwardingSource;    import okio.Okio;    import okio.Sink;    import okio.Source;    public class MainActivity extends AppCompatActivity {        private OkHttpClient okHttpClient;        private TextView textView;        private File tempFile;        private File targetFile;        private String path;        private Button button1;        private Button button2;        private Button button3;        private Button button4;        //private long time;        private static final int REQUEST_EXTERNAL_STORAGE = 1;        private static final int FILE_SELECT_CODE = 1;        private static String[] PERMISSIONS_STORAGE = {                Manifest.permission.READ_EXTERNAL_STORAGE,                Manifest.permission.WRITE_EXTERNAL_STORAGE        };        @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.activity_main);            setTitle("上传文件并显示进度");            //verifyStoragePermissions(MainActivity.this);            textView = (TextView) findViewById(R.id.tv1);            button1 = (Button) findViewById(R.id.btn_choose);            button2 = (Button) findViewById(R.id.btn_upload);            button3 = (Button) findViewById(R.id.btn_download);            button4 = (Button) findViewById(R.id.btn_display);            path = "";            okHttpClient = new OkHttpClient.Builder()                    .readTimeout(60, TimeUnit.SECONDS)                    .connectTimeout(10, TimeUnit.SECONDS)                    .writeTimeout(120, TimeUnit.SECONDS)                    .build();            button1.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    showFileChooser();                }            });            button2.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    startUploadClick();                }            });            button3.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    startDownloadClick();                }            });            button4.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    Intent intent = new Intent(MainActivity.this,DisplayActivity.class);                    startActivity(intent);                }            });        }                //打开文件选择器        private void showFileChooser() {            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);            intent.setType("*/*");            intent.addCategory(Intent.CATEGORY_OPENABLE);            try {                startActivityForResult( Intent.createChooser(intent, "Select a File to Upload"), FILE_SELECT_CODE);            } catch (android.content.ActivityNotFoundException ex) {                Toast.makeText(this, "Please install a File Manager.",  Toast.LENGTH_SHORT).show();            }        }        @Override        protected void onActivityResult(int requestCode, int resultCode, Intent data)  {            switch (requestCode) {                case FILE_SELECT_CODE:                    if (resultCode == RESULT_OK) {                        // Get the Uri of the selected file                        Uri uri = data.getData();                        path = FileUtils.getPath(this, uri);                    }                    break;            }            super.onActivityResult(requestCode, resultCode, data);        }        public String getFileName(String pathandname){            int start=pathandname.lastIndexOf("/");            //int end=pathandname.lastIndexOf("");            if(start!=-1 ){                return pathandname.substring(start+1);            }else{                return null;            }        }        //点击按钮开始上传文件        public void startUploadClick() {            //tempFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "test1.txt");            //showFileChooser();            String fileName = "";            tempFile = new File(path);            //tempFile = new File("/data/data/upload/man.jpg");            if (tempFile.getName() == null){                Toast.makeText(MainActivity.this, "找不到该文件!", Toast.LENGTH_SHORT).show();            }            else {                fileName = getFileName(path);            }            RequestBody requestBody = new MultipartBody.Builder()                    .setType(MultipartBody.FORM)                    .addFormDataPart("file", fileName, RequestBody.create(MediaType.parse("image/jpg"), tempFile))                    .build();            //ProgressRequestBody progressRequestBody = new ProgressRequestBody(requestBody, progressListener);            Request request = new Request.Builder()                    .url("http://xxx.xxx.xxx.xx/receive_file.php")                    .post(requestBody)                    .build();            //上面url中的内容请改成自己php文件的所在地址            okHttpClient.newCall(request).enqueue(callback_upload);        }        //点击按钮开始下载文件        public void startDownloadClick() {            targetFile = new File("/data/data/com.example.ywy.mycloud1/cache/"  + "test1.jpg");            Request request = new Request.Builder()                    .url("http://xxx.xxx.xxx.xx/downloads/woman.jpg")                    .build();            okHttpClient.newCall(request).enqueue(callback_download);            //上面url中的内容请改成自己想要下载的文件的所在地址        }        //上传请求后的回调方法        private Callback callback_upload = new Callback() {            @Override            public void onFailure(Call call, IOException e) {                setResult(e.getMessage(), false);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                setResult(response.body().string(), true);            }        };        private  Callback callback_download = new Callback() {            @Override            public void onFailure(Call call, IOException e) {                setResult(e.getMessage(),false);            }            @Override            public void onResponse(Call call, Response response) throws IOException {                if(response != null) {                    //下载完成，保存数据到文件                    //verifyStoragePermissions(MainActivity.this);                    InputStream is = response.body().byteStream();                    FileOutputStream fos = new FileOutputStream(targetFile);                    byte[] buf = new byte[1024];                    int hasRead = 0;                    while((hasRead = is.read(buf)) > 0) {                        fos.write(buf, 0, hasRead);                    }                    fos.close();                    is.close();                    setResult("下载成功", true);                }            }        };        //显示请求返回的结果        private void setResult(final String msg, final boolean success) {            runOnUiThread(new Runnable() {                @Override                public void run() {                    if (success) {                        Toast.makeText(MainActivity.this, "请求成功", Toast.LENGTH_SHORT).show();                    } else {                        Toast.makeText(MainActivity.this, "请求失败", Toast.LENGTH_SHORT).show();                    }                    textView.setText(msg);                }            });        }}

import android.content.Context;import android.database.Cursor;import android.net.Uri;/** * Created by YWY on 2016/11/9. */public class FileUtils {    public static String getPath(Context context, Uri uri) {        if ("content".equalsIgnoreCase(uri.getScheme())) {            String[] projection = { "_data" };            Cursor cursor = null;            try {                cursor = context.getContentResolver().query(uri, projection,null, null, null);                int column_index = cursor.getColumnIndexOrThrow("_data");                if (cursor.moveToFirst()) {                    return cursor.getString(column_index);                }            } catch (Exception e) {                // Eat it            }        }        else if ("file".equalsIgnoreCase(uri.getScheme())) {            return uri.getPath();        }        return null;    }}

import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ImageView;public class DisplayActivity extends AppCompatActivity {    private  ImageView imageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_display);        imageView = (ImageView)findViewById(R.id.iv);        Bitmap bitmap = BitmapFactory.decodeFile("/data/data/com.example.ywy.mycloud1/cache/test1.jpg");        imageView.setImageBitmap(bitmap);    }}

权限：

<uses-permission android:name="android.permission.INTERNET"/>    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

PHP：
<?php$base_path = "./text/"; //存放目录if(!is_dir($base_path)){    mkdir($base_path,0777,true);}$target_path = $base_path . basename ( $_FILES ['file'] ['name'] );if (move_uploaded_file ( $_FILES ['file'] ['tmp_name'], $target_path )) {  $array = array (      "status" => true,      "msg" => $_FILES ['file'] ['name']   );  echo json_encode ( $array );} else {  $array = array (      "status" => false,      "msg" => "There was an error uploading the file, please try again!" . $_FILES ['file'] ['error']   );  echo json_encode ( $array );}?>