Android(安卓)-Okhttp框架 工具类
16lz
2021-01-26
网络请求的封装
package com.lt.okhttpfirst.helper;import android.content.Context;import com.squareup.okhttp.Cache;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 com.squareup.okhttp.ResponseBody;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.net.CookieManager;import java.net.CookiePolicy;import java.net.FileNameMap;import java.net.URLConnection;import java.util.Map;import java.util.concurrent.TimeUnit;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.SSLSession;/** * Created by 风情万种冷哥哥 on 2016/10/17. */public class OkHttpClientHelper { private static OkHttpClient mOkHttpClient = null; private static OkHttpClientHelper mOkHttpUtils = null; private OkHttpClientHelper(Context context) { mOkHttpClient = getOkHttpSingletonInstance(); //开启响应缓存 mOkHttpClient.setCookieHandler(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER)); //设置缓存目录和大小 int cacheSize = 10 << 20; // 10 MiB Cache cache = new Cache(context.getCacheDir(), cacheSize); mOkHttpClient.setCache(cache); //设置合理的超时 mOkHttpClient.setConnectTimeout(15, TimeUnit.SECONDS); mOkHttpClient.setReadTimeout(20, TimeUnit.SECONDS); mOkHttpClient.setWriteTimeout(20, TimeUnit.SECONDS); //以下验证不设置,那么默认就已经设置了验证 mOkHttpClient.setHostnameVerifier(new HostnameVerifier() { @Override public boolean verify(String hostname, SSLSession session) { return true; } }); } public static OkHttpClientHelper getOkHttpClientUtils(Context context) { if (mOkHttpUtils == null) { synchronized (OkHttpClientHelper.class) { if (mOkHttpUtils == null) { mOkHttpUtils = new OkHttpClientHelper(context); } } } return mOkHttpUtils; } public static OkHttpClient getOkHttpSingletonInstance() { if (mOkHttpClient == null) { synchronized (OkHttpClient.class) { mOkHttpClient = new OkHttpClient(); } } return mOkHttpClient; } /////////////////////////////////////////////////////////////////////////// // GET方式网络访问 /////////////////////////////////////////////////////////////////////////// /** * 基方法,返回Request对象 * * @param urlString * @param tag * @return */ private Request buildGetRequest(String urlString, Object tag) { Request.Builder builder = new Request.Builder(); builder.url(urlString); if (tag != null) { builder.tag(tag); } return builder.build(); } /** * 自定义方法,返回Response对象 * * @param urlString * @return * @throws IOException */ private Response buildResponse(String urlString, Object tag) throws IOException { Request request = buildGetRequest(urlString, tag); Response response = mOkHttpClient.newCall(request).execute(); return response; } //基础方法,返回ResponseBody对象 private ResponseBody buildResponseBody(String urlString, Object tag) throws IOException { Response response = buildResponse(urlString, tag); if (response.isSuccessful()) { return response.body(); } return null; } /** * 作用:实现网络访问文件,将获取到数据储存在文件流中 * * @param urlString :访问网络的url地址 * @return InputStream */ public static InputStream getStreamFromURL(Context context, String urlString, Object tag) throws IOException { ResponseBody body = getOkHttpClientUtils(context).buildResponseBody(urlString, tag); if (body != null) { return body.byteStream(); } return null; } /** * 作用:实现网络访问文件,将获取到的数据存在字节数组中 * * @param urlString :访问网络的url地址 * @return byte[] */ public static byte[] getBytesFromURL(Context context, String urlString, Object tag) throws IOException { ResponseBody body = getOkHttpClientUtils(context).buildResponseBody(urlString, tag); if (body != null) { return body.bytes(); } return null; } /** * 作用:实现网络访问文件,将获取到的数据存在字符串中 * * @param urlString :访问网络的url地址 * @return String */ public static String getStringFromURL(Context context, String urlString, Object tag) throws IOException { ResponseBody body = getOkHttpClientUtils(context).buildResponseBody(urlString, tag); if (body != null) { return body.string(); } return null; } /////////////////////////////////////////////////////////////////////////// // POST方式访问网络 /////////////////////////////////////////////////////////////////////////// /** * 基方法,返回Request对象 * * @param urlString * @param tag * @return */ private Request buildPostRequest(String urlString, RequestBody requestBody, Object tag) { Request.Builder builder = new Request.Builder(); builder.url(urlString).post(requestBody); //builder.addHeader("Accept", "application/json; q=0.5"); if (tag != null) { builder.tag(tag); } return builder.build(); } /** * 作用:post提交数据,返回服务器端返回的字节数组 * * @param urlString :访问网络的url地址 * @return byte[] */ private String postRequestBody(String urlString, RequestBody requestBody, Object tag) { Request request = buildPostRequest(urlString, requestBody, tag); try { Response response = mOkHttpClient.newCall(request).execute(); if (response.isSuccessful()) { return response.body().string(); } } catch (Exception e) { e.printStackTrace(); } return null; } /** * 作用:POST提交键值对,再返回相应的数据 * * @param urlString :访问网络的url地址 * @param map :访问url时,需要传递给服务器的键值对数据。 * @return String */ public static String postKeyValuePair(Context context, String urlString, Map map, Object tag) { //往FormEncodingBuilder对象中放置键值对 FormEncodingBuilder formBuilder = new FormEncodingBuilder(); if (map != null && !map.isEmpty()) { for (Map.Entry entry : map.entrySet()) { formBuilder.add(entry.getKey(), entry.getValue()); } } //生成请求体对象 RequestBody requestBody = formBuilder.build(); //将请求提放置到请求对象中 return getOkHttpClientUtils(context).postRequestBody(urlString, requestBody, tag); } /** * 作用:POST提交Json字符串,再返回相应的数据 * * @param urlString :访问网络的url地址 * @param jsonString :访问url时,需要传递给服务器的json字符串 * @return byte[] */ public static String postJsonString(Context context, String urlString, String jsonString, Object tag) { //定义mimetype对象 /*String MEDIA_TYPE_STREAM = "application/octet-stream;charset=utf-8"; String MEDIA_TYPE_STRING = "text/plain;charset=utf-8";*/ String MEDIA_TYPE_JSON = "application/json;charset=utf-8"; MediaType JSON = MediaType.parse(MEDIA_TYPE_JSON); RequestBody requestBody = RequestBody.create(JSON, jsonString); return getOkHttpClientUtils(context).postRequestBody(urlString, requestBody, tag); } /////////////////////////////////////////////////////////////////////////// // 异步网络访问 /////////////////////////////////////////////////////////////////////////// /** * 开启异步线程访问网络,通过回调方法实现数据加载 * 如果第二个参数为null,空callback, 则说明不在意返回结果 * * @param urlString * @param callback */ public static void getDataAsync(Context context, String urlString, Callback callback, Object tag) { Request request = getOkHttpClientUtils(context).buildGetRequest(urlString, tag); getOkHttpSingletonInstance().newCall(request).enqueue(callback); } /** * 作用:post提交数据,返回服务器端返回的字节数组 * * @param urlString :访问网络的url地址 */ private void postRequestBodyAsync(String urlString, RequestBody requestBody, Callback callback, Object tag) { Request request = buildPostRequest(urlString, requestBody, tag); if (callback == null) { new Callback() { @Override public void onFailure(Request request, IOException e) { } @Override public void onResponse(Response response) throws IOException { } }; } mOkHttpClient.newCall(request).enqueue(callback); } /** * 作用:POST提交键值对,再返回相应的数据 * * @param urlString :访问网络的url地址 * @param map :访问url时,需要传递给服务器的键值对数据。 */ public static void postKeyValuePairAsync(Context context, String urlString, Map map, Callback callback, Object tag) { //往FormEncodingBuilder对象中放置键值对 FormEncodingBuilder formBuilder = new FormEncodingBuilder(); if (map != null && !map.isEmpty()) { for (Map.Entry entry : map.entrySet()) { formBuilder.add(entry.getKey(), entry.getValue()); } } //生成请求体对象 RequestBody requestBody = formBuilder.build(); //将请求提放置到请求对象中 getOkHttpClientUtils(context).postRequestBodyAsync(urlString, requestBody, callback, tag); } /** * 作用:post异步上传文件,提交分块请求 * * @param urlString 网络地址 * @param map 提交给服务器的表单信息键值对 * @param files 提交的文件 * @param formFieldName 每个需要提交的文件对应的文件input的name值 * @param callback 异步上传回调方法 * @throws IOException */ public static void postUploadFilesAsync(Context context, String urlString, Map map, File[] files, String[] formFieldName, Callback callback, Object tag) throws IOException { RequestBody requestBody = getOkHttpClientUtils(context).buildRequestBody(map, files, formFieldName); getOkHttpClientUtils(context).postRequestBodyAsync(urlString, requestBody, callback, tag); } /////////////////////////////////////////////////////////////////////////// // POST方式提交分块请求,实现文件上传 /////////////////////////////////////////////////////////////////////////// /** * 同步基于post的文件上传:上传多个文件以及携带key-value对:主方法 * * @param urlString * @param formFiledName * @param files * @param map * @param tag * @return String * @throws IOException */ public static String postUploadFiles(Context context, String urlString, Map map, File[] files, String[] formFiledName, Object tag) throws IOException { RequestBody requestBody = getOkHttpClientUtils(context).buildRequestBody(map, files, formFiledName); return getOkHttpClientUtils(context).postRequestBody(urlString, requestBody, tag); } /** * 创建post上传附件的request对象 * Post方式提交分块请求——上传文件及其它表单数据 * * @param files * @param formFiledName * @param map * @return */ private RequestBody buildRequestBody(Map map, File[] files, String[] formFiledName) { MultipartBuilder builder = new MultipartBuilder().type(MultipartBuilder.FORM); //往MultipartBuilder对象中添加普通input控件的内容 if (map != null) { for (Map.Entry entry : map.entrySet()) { //添加普通input块的数据 builder.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + entry .getKey() + "\""), RequestBody.create(null, entry.getValue())); } } //往MultipartBuilder对象中添加file input控件的内容 if (files != null && formFiledName != null) { for (int i = 0; i < files.length; i++) { File file = files[i]; String fileName = file.getName(); RequestBody requestBody = RequestBody.create(MediaType.parse ("multipart/form-data"), file); //添加file input块的数据 builder.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + formFiledName[i] + "\"; filename=\"" + fileName + "\""), requestBody); } } //生成RequestBody对象 return builder.build(); } /** * 获取Mime类型 * * @param filename * @return */ private static String getMimeType(String filename) { FileNameMap fileNameMap = URLConnection.getFileNameMap(); String contentTypeFor = fileNameMap.getContentTypeFor(filename); if (contentTypeFor == null) { contentTypeFor = "application/octet-stream"; } return contentTypeFor; } public static void cancelCall(Object tag) { getOkHttpSingletonInstance().cancel(tag); }}
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