package com.zhy.utils.http.okhttp; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Handler; import android.os.Looper; import android.widget.ImageView; import com.squareup.okhttp.Call; import com.squareup.okhttp.Callback; import com.squareup.okhttp.FormEncodingBuilder; import com.squareup.okhttp.Headers; import com.squareup.okhttp.MediaType; import com.squareup.okhttp.MultipartBuilder; import com.squareup.okhttp.OkHttpClient; import com.squareup.okhttp.Request; import com.squareup.okhttp.RequestBody; import com.squareup.okhttp.Response; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.FileNameMap; import java.net.URLConnection; import java.util.Map; import java.util.Set; /** * Created by zhy on 15/8/17. */ public class OkHttpClientManager { private static OkHttpClientManager mInstance; private OkHttpClient mOkHttpClient; private Handler mDelivery; private static final String TAG = "OkHttpClientManager"; private OkHttpClientManager() { mOkHttpClient = new OkHttpClient(); mDelivery = new Handler(Looper.getMainLooper()); } public static OkHttpClientManager getInstance() { if (mInstance == null) { synchronized (OkHttpClientManager.class) { if (mInstance == null) { mInstance = new OkHttpClientManager(); } } } return mInstance; } /** * 同步的Get请求 * * @param url * @return Response */ private Response _getAsyn(String url) throws IOException { final Request request = new Request.Builder() .url(url) .build(); Call call = mOkHttpClient.newCall(request); Response execute = call.execute(); return execute; } /** * 同步的Get请求 * * @param url * @return 字符串 */ private String _getAsString(String url) throws IOException { Response execute = _getAsyn(url); return execute.body().string(); } /** * 异步的get请求 * * @param url * @param callback */ private void _getAsyn(String url, final StringCallback callback) { final Request request = new Request.Builder() .url(url) .build(); deliveryResult(callback, request); } /** * 同步的Post请求 * * @param url * @param params post的参数 * @return */ private Response _post(String url, Param... params) throws IOException { Request request = buildPostRequest(url, params); Response response = mOkHttpClient.newCall(request).execute(); return response; } /** * 同步的Post请求 * * @param url * @param params post的参数 * @return 字符串 */ private String _postAsString(String url, Param... params) throws IOException { Response response = _post(url, params); return response.body().string(); } /** * 异步的post请求 * * @param url * @param callback * @param params */ private void _postAsyn(String url, final StringCallback callback, Param... params) { Request request = buildPostRequest(url, params); deliveryResult(callback, request); } /** * 异步的post请求 * * @param url * @param callback * @param params */ private void _postAsyn(String url, final StringCallback callback, Map<String, String> params) { Param[] paramsArr = map2Params(params); Request request = buildPostRequest(url, paramsArr); deliveryResult(callback, request); } /** * 同步基于post的文件上传 * * @param params * @return */ private Response _post(String url, File[] files, String[] fileKeys, Param... params) throws IOException { Request request = buildMultipartFormRequest(url, files, fileKeys, params); return mOkHttpClient.newCall(request).execute(); } private Response _post(String url, File file, String fileKey) throws IOException { Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, null); return mOkHttpClient.newCall(request).execute(); } private Response _post(String url, File file, String fileKey, Param... params) throws IOException { Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, params); return mOkHttpClient.newCall(request).execute(); } /** * 异步基于post的文件上传 * * @param url * @param callback * @param files * @param fileKeys * @throws IOException */ private void _postAsyn(String url, StringCallback callback, File[] files, String[] fileKeys, Param... params) throws IOException { Request request = buildMultipartFormRequest(url, files, fileKeys, params); deliveryResult(callback, request); } /** * 异步基于post的文件上传，单文件不带参数上传 * * @param url * @param callback * @param file * @param fileKey * @throws IOException */ private void _postAsyn(String url, StringCallback callback, File file, String fileKey) throws IOException { Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, null); deliveryResult(callback, request); } /** * 异步基于post的文件上传，单文件且携带其他form参数上传 * * @param url * @param callback * @param file * @param fileKey * @param params * @throws IOException */ private void _postAsyn(String url, StringCallback callback, File file, String fileKey, Param... params) throws IOException { Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, params); deliveryResult(callback, request); } /** * 异步下载文件 * * @param url * @param destFileDir 本地文件存储的文件夹 * @param callback */ private void _downloadAsyn(final String url, final String destFileDir, final StringCallback callback) { final Request request = new Request.Builder() .url(url) .build(); final Call call = mOkHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(final Request request, final IOException e) { sendFailedStringCallback(request, e, callback); } @Override public void onResponse(Response response) { InputStream is = null; byte[] buf = new byte[2048]; int len = 0; FileOutputStream fos = null; try { is = response.body().byteStream(); File file = new File(destFileDir, getFileName(url)); fos = new FileOutputStream(file); while ((len = is.read(buf)) != -1) { fos.write(buf, 0, len); } fos.flush(); //如果下载文件成功，第一个参数为文件的绝对路径 sendSuccessStringCallback(file.getAbsolutePath(), callback); } catch (IOException e) { sendFailedStringCallback(response.request(), e, callback); } finally { try { if (is != null) is.close(); } catch (IOException e) { } try { if (fos != null) fos.close(); } catch (IOException e) { } } } }); } private String getFileName(String path) { int separatorIndex = path.lastIndexOf("/"); return (separatorIndex < 0) ? path : path.substring(separatorIndex + 1, path.length()); } /** * 加载图片 * * @param view * @param url * @throws IOException */ private void _displayImage(final ImageView view, final String url, final int errorResId) { final Request request = new Request.Builder() .url(url) .build(); Call call = mOkHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Request request, IOException e) { setErrorResId(view, errorResId); } @Override public void onResponse(Response response) { InputStream is = null; try { is = response.body().byteStream(); ImageUtils.ImageSize actualImageSize = ImageUtils.getImageSize(is); ImageUtils.ImageSize imageViewSize = ImageUtils.getImageViewSize(view); int inSampleSize = ImageUtils.calculateInSampleSize(actualImageSize, imageViewSize); try { is.reset(); } catch (IOException e) { response = _getAsyn(url); is = response.body().byteStream(); } BitmapFactory.Options ops = new BitmapFactory.Options(); ops.inJustDecodeBounds = false; ops.inSampleSize = inSampleSize; final Bitmap bm = BitmapFactory.decodeStream(is, null, ops); mDelivery.post(new Runnable() { @Override public void run() { view.setImageBitmap(bm); } }); } catch (Exception e) { setErrorResId(view, errorResId); } finally { if (is != null) try { is.close(); } catch (IOException e) { e.printStackTrace(); } } } }); } private void setErrorResId(final ImageView view, final int errorResId) { mDelivery.post(new Runnable() { @Override public void run() { view.setImageResource(errorResId); } }); } //*************对外公布的方法************ public static Response getAsyn(String url) throws IOException { return getInstance()._getAsyn(url); } public static String getAsString(String url) throws IOException { return getInstance()._getAsString(url); } public static void getAsyn(String url, StringCallback callback) { getInstance()._getAsyn(url, callback); } public static Response post(String url, Param... params) throws IOException { return getInstance()._post(url, params); } public static String postAsString(String url, Param... params) throws IOException { return getInstance()._postAsString(url, params); } public static void postAsyn(String url, final StringCallback callback, Param... params) { getInstance()._postAsyn(url, callback, params); } public static void postAsyn(String url, final StringCallback callback, Map<String, String> params) { getInstance()._postAsyn(url, callback, params); } public static Response post(String url, File[] files, String[] fileKeys, Param... params) throws IOException { return getInstance()._post(url, files, fileKeys, params); } public static Response post(String url, File file, String fileKey) throws IOException { return getInstance()._post(url, file, fileKey); } public static Response post(String url, File file, String fileKey, Param... params) throws IOException { return getInstance()._post(url, file, fileKey, params); } public static void postAsyn(String url, StringCallback callback, File[] files, String[] fileKeys, Param... params) throws IOException { getInstance()._postAsyn(url, callback, files, fileKeys, params); } public static void postAsyn(String url, StringCallback callback, File file, String fileKey) throws IOException { getInstance()._postAsyn(url, callback, file, fileKey); } public static void postAsyn(String url, StringCallback callback, File file, String fileKey, Param... params) throws IOException { getInstance()._postAsyn(url, callback, file, fileKey, params); } public static void displayImage(final ImageView view, String url, int errorResId) throws IOException { getInstance()._displayImage(view, url, errorResId); } public static void displayImage(final ImageView view, String url) { getInstance()._displayImage(view, url, -1); } public static void downloadAsyn(String url, String destDir, StringCallback callback) { getInstance()._downloadAsyn(url, destDir, callback); } //**************************** private Request buildMultipartFormRequest(String url, File[] files, String[] fileKeys, Param[] params) { params = validateParam(params); MultipartBuilder builder = new MultipartBuilder() .type(MultipartBuilder.FORM); for (Param param : params) { builder.addPart(Headers.of("Content-Disposition", "form-data; name="" + param.key + """), RequestBody.create(null, param.value)); } 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(guessMimeType(fileName)), file); //TODO 根据文件名设置contentType builder.addPart(Headers.of("Content-Disposition", "form-data; name="" + fileKeys[i] + ""; filename="" + fileName + """), fileBody); } } RequestBody requestBody = builder.build(); return new Request.Builder() .url(url) .post(requestBody) .build(); } private String guessMimeType(String path) { FileNameMap fileNameMap = URLConnection.getFileNameMap(); String contentTypeFor = fileNameMap.getContentTypeFor(path); if (contentTypeFor == null) { contentTypeFor = "application/octet-stream"; } return contentTypeFor; } private Param[] validateParam(Param[] params) { if (params == null) return new Param[0]; else return params; } private Param[] map2Params(Map<String, String> params) { if (params == null) return new Param[0]; int size = params.size(); Param[] res = new Param[size]; Set<Map.Entry<String, String>> entries = params.entrySet(); int i = 0; for (Map.Entry<String, String> entry : entries) { res[i++] = new Param(entry.getKey(), entry.getValue()); } return res; } private void deliveryResult(final StringCallback callback, Request request) { mOkHttpClient.newCall(request).enqueue(new Callback() { @Override public void onFailure(final Request request, final IOException e) { sendFailedStringCallback(request, e, callback); } @Override public void onResponse(final Response response) { try { final String string = response.body().string(); sendSuccessStringCallback(string, callback); } catch (IOException e) { sendFailedStringCallback(response.request(), e, callback); } } }); } private void sendFailedStringCallback(final Request request, final IOException e, final StringCallback callback) { mDelivery.post(new Runnable() { @Override public void run() { if (callback != null) callback.onFailure(request, e); } }); } private void sendSuccessStringCallback(final String string, final StringCallback callback) { mDelivery.post(new Runnable() { @Override public void run() { if (callback != null) callback.onResponse(string); } }); } private Request buildPostRequest(String url, Param[] params) { if (params == null) { params = new Param[0]; } FormEncodingBuilder builder = new FormEncodingBuilder(); for (Param param : params) { builder.add(param.key, param.value); } RequestBody requestBody = builder.build(); return new Request.Builder() .url(url) .post(requestBody) .build(); } public interface StringCallback { void onFailure(Request request, IOException e); void onResponse(String response); } public static class Param { public Param() { } public Param(String key, String value) { this.key = key; this.value = value; } String key; String value; } }
Http Get
OkHttpClientManager.getAsyn("https://github.com/hongyangAndroid", new OkHttpClientManager.StringCallback() { @Override public void onFailure(Request request, IOException e) { e.printStackTrace(); } @Override public void onResponse(String bytes) { mTv.setText(bytes);//注意这里是UI线程回调，可以直接操作控件 } });
文件上传且携带参数
OkHttpClientManager.postAsyn("http://192.168.1.103:8080/okHttpServer/fileUpload",// new OkHttpClientManager.StringCallback() { @Override public void onFailure(Request request, IOException e) { e.printStackTrace(); } @Override public void onResponse(String result) { } },// file,// "mFile",// new OkHttpClientManager.Param[]{ new OkHttpClientManager.Param("username", "zhy"), new OkHttpClientManager.Param("password", "123")} );
键值对没什么说的，参数3为file，参数4为file对应的name，这个name不是文件的名字；
对应于http中的
<input type="file" name="mFile" >
对应的是name后面的值，即mFile.
文件下载
对于文件下载，提供url，目标dir，callback即可。
OkHttpClientManager.downloadAsyn( "http://192.168.1.103:8080/okHttpServer/files/messenger_01.png", Environment.getExternalStorageDirectory().getAbsolutePath(), new OkHttpClientManager.StringCallback() { @Override public void onFailure(Request request, IOException e) { } @Override public void onResponse(String response) { //文件下载成功，这里回调的reponse为文件的absolutePath } });
展示图片
展示图片，我们希望提供一个url和一个imageview，如果下载成功，直接帮我们设置上即可。
OkHttpClientManager.displayImage(mImageView, "http://images.csdn.net/20150817/1.jpg");
内部会自动根据imageview的大小自动对图片进行合适的压缩。虽然，这里可能不适合一次性加载大量图片的场景，但是对于app中偶尔有几个图片的加载，还是可用的。