安卓简单接口上传头像

//首先导入需要的清单文件    依赖

    
    

//别忘了添加依赖 
compile 'com.squareup.okhttp3:okhttp:3.9.0'
    compile 'com.squareup.okhttp3:logging-interceptor:3.9.0'

//封装okhttp

public interface Api {
    boolean ISONLINE = true;
    String DEV = "http://169.27.23.105";
    public static String ONLINE = "http://120.27.23.105";

    public static String HOST = ISONLINE ? ONLINE : DEV;
    public static String Login = HOST + "/user/login";
    public static String REGISTER = HOST + "/user/reg";
    public static String CATAGORY = HOST + "/product/getCatagory";
    public static String PRODUCT_CATAGORY = HOST + "/product/getProductCatagory?cid=%s";
    public static String PRODUCT_CATAGORY_LIST = HOST + "/product/getProducts";
}

import android.util.Log;

import java.io.File;
import java.util.Map;

import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.logging.HttpLoggingInterceptor;

/**
 * Created by peng on 2017/12/1.
 */

public class OkHttpUtils {
    private static OkHttpUtils okHttpUtils;
    private final OkHttpClient client;

    private OkHttpUtils() {
        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
        logging.setLevel(HttpLoggingInterceptor.Level.BODY);
        client = new OkHttpClient.Builder()
                .addInterceptor(logging)
                .build();
    }

    public static OkHttpUtils getOkHttpUtils() {
        if (okHttpUtils == null) {
            synchronized (OkHttpUtils.class) {
                if (okHttpUtils == null) {
                    okHttpUtils = new OkHttpUtils();
                }
            }
        }
        return okHttpUtils;
    }

    /**
     * GET请求
     *
     * @param url
     * @param callback
     */
    public void doGet(String url, Callback callback) {
        Request request = new Request.Builder().url(url).build();
        client.newCall(request).enqueue(callback);
    }

    /**
     * POST请求
     *
     * @param url
     * @param params
     * @param callback
     */
    public void doPost(String url, Map params, Callback callback) {
        if (params == null) {
            throw new RuntimeException("参数为空了");
        }
        FormBody.Builder builder = new FormBody.Builder();
        for (Map.Entry entry : params.entrySet()) {
            builder.add(entry.getKey(), entry.getValue());
        }

        Log.e("OkHttpUtils", "请求地址：" + url + " 请求的参数：");
        FormBody formBody = builder.build();
        Request request = new Request.Builder().url(url).post(formBody).build();
        client.newCall(request).enqueue(callback);
    }

    public void uploadFile(String url, Map params, Callback callback) {
        if (params == null) {
            throw new RuntimeException("参数为空了");
        }
        MultipartBody.Builder builder = new MultipartBody.Builder();
        builder.setType(MultipartBody.FORM);
        for (Object key : params.keySet()) {
            if (params.get(key) instanceof String) {//uid
                builder.addFormDataPart(key.toString(), params.get(key).toString());
            } else if (params.get(key) instanceof File) {//File
                File file = (File) params.get(key);
                //image/jpeg jpg png
                builder.addFormDataPart(key.toString(), file.getName(), RequestBody.create(MediaType.parse("application/octet-stream"), file));
            }
        }
        RequestBody body = builder.build();
        Log.e("OkHttpUtils", "请求地址：" + url + " 请求的参数：");
        Request request = new Request.Builder().url(url).post(body).build();
        client.newCall(request).enqueue(callback);
    }


    public void upload(String url, Map params, Callback callback) {
        MultipartBody.Builder builder = new MultipartBody.Builder();
        builder.setType(MultipartBody.FORM);
        for (String key : params.keySet()) {
            Object obj = params.get(key);
            if (obj instanceof String) {
                builder.addFormDataPart(key, obj.toString());
            } else if (obj instanceof File) {
                File file = (File) obj;
                builder.addFormDataPart("file", file.getName(), RequestBody.create(MediaType.parse("image/jpeg"), file));
            }
        }
        MultipartBody body = builder.build();

        Request request = new Request.Builder().url(url).post(body).build();
        client.newCall(request).enqueue(callback);
    }
}

public interface OnNetListener {
    public void onSuccess(T t);

    public void onFailure(Exception e);
}

import android.util.Log;

import java.io.IOException;

import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

public class LoggingInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();

        long t1 = System.nanoTime();
        Log.i("LoggingInterceptor", String.format("Sending request %s on %s%n%s",
                request.url(), chain.connection(), request.headers()));

        Response response = chain.proceed(request);

        long t2 = System.nanoTime();
        Log.i("LoggingInterceptor", String.format("Received response for %s in %.1fms%n%s",
                response.request().url(), (t2 - t1) / 1e6d, response.headers()));

        return response;
    }
}

//布局

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import bwie.com.day10_1510d.net.OkHttpUtils;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;
import okhttp3.ResponseBody;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    private ImageView mIv;
    private Handler mHandler;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mHandler =new Handler();
        initView();
    }

    private void initView() {
        mIv = (ImageView) findViewById(R.id.iv);
        mIv.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        int id = v.getId();
        if (id == R.id.iv) {
            uploadFile();
        }
    }

    private  void uploadFile(){
        File externalStorageDirectory = Environment.getExternalStorageDirectory();
        String filePath = externalStorageDirectory.getAbsolutePath()+"/b.jpg";
        File file =new File(filePath);
        Map params = new HashMap<>();
        params.put("uid","71");
        params.put("file",file);
        OkHttpUtils.getOkHttpUtils().upload("https://www.zhaoapi.cn/file/upload",params,new Callback(){

            @Override
            public void onFailure(Call call, IOException e) {
                showMsg(e.getMessage());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                ResponseBody body = response.body();
                showMsg(body.string());
            }
        });
    }

    private void showMsg(final String msg){
        mHandler.post(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(getApplicationContext(),msg,Toast.LENGTH_SHORT).show();
                //显示图片
                File externalStorageDirectory = Environment.getExternalStorageDirectory();
                String filePath = externalStorageDirectory.getAbsolutePath()+"/b.jpg";
                Bitmap bitmap = BitmapFactory.decodeFile(filePath);
                mIv.setImageBitmap(bitmap);
            }
        });
    }
}