Android(安卓)Okhttp工具类的封装（okhttpUtils）
16lz
2021-01-26
Android Okhttp工具类
Android Okhttp工具类的封装（okhttpUtils）
近期的项目频繁使用到了网络交互，采用的是第三方类库okhttp
以下是我对okhttp主要使用到的方法进行的封装。
github源码地址：https://github.com/square/okhttp
主要是分为以下三种使用模式（post请求）
- post请求(参数+cookie)
- post请求(单文件+参数+cookie)
- post请求(多文件+参数+cookie)
下面是代码
代码中的变量声明
private static volatile OkhttpUtil instance; private static final String TAG = "OkhttpUtil"; public static Handler handler = new Handler(); private final HashMap> cookieStore = new HashMap<>(); 双重检测锁-单例模式
/** * 双重检测锁-单例模式 * * @return */ public static OkhttpUtil getInstance() { if (instance == null) { synchronized (OkhttpUtil.class) { if (instance == null) { instance = new OkhttpUtil(); } } } return instance; }然后是post请求(参数+cookie)
/** * @网络请求--post请求(参数+cookie) * url地址，map是参数集合，name是header的key，value是header的value,CallBack回调方法 */ public void postParameter(String url, Map map, String name, String value, final CallBack callback) { OkHttpClient okHttpClient = new OkHttpClient.Builder().cookieJar(new CookieJar() { @Override public void saveFromResponse(HttpUrl httpUrl, List list) {//存储用户身份凭证 cookieStore.put(httpUrl.host(), list); } @Override public List loadForRequest(HttpUrl httpUrl) { List cookies = cookieStore.get(httpUrl.host()); return cookies != null ? cookies : new ArrayList(); } }).build(); MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM); for (Map.Entry entry : map.entrySet()) {//遍历map集合进行添加 builder.addFormDataPart(entry.getKey(), entry.getValue()); } MultipartBody requestBody = builder.build(); final Request request = new Request.Builder() .url(url) .post(requestBody) .header(name, value)//将身份凭证作为头参数，访问时携带发送 .build(); Call call = okHttpClient.newCall(request); call.enqueue(new okhttp3.Callback() { @Override public void onFailure(Call call, final IOException e) { Log.e(TAG, "onFailure:" + e.getCause().getStackTrace() + e.getMessage()); handler.post(new Runnable() { @Override public void run() { callback.onFailed( e); } }); } @Override public void onResponse(Call call, Response response) throws IOException { if (response.isSuccessful()) { final String result = response.body().string(); handler.post(new Runnable() { @Override public void run() { callback.onSuccess( result); } }); } } }); } 下面是post请求(参数+cookie)使用时的代码
private void post() { OkhttpUtil okhttpUtil = new OkhttpUtil(); String url = "这里是所要访问的url地址; Map map = new HashMap<>();//参数map集合 map.put("account", account);//向map集合中添加参数 map.put("pw", pw); okhttpUtil.postParameter(url, map, new CallBack() { @Override public void onSuccess(String request) {//回调访问成功 final Gson gson = new Gson(); loginBean newsBean = gson.fromJson(request, loginBean.class);//解析传回的json数据 String message = newsBean.getMessage(); //获取传回的message } @Override public void onFailed(Exception e) {//回调访问失败 Toast.makeText(LoginActivity.this, "网络错误", Toast.LENGTH_SHORT).show(); } }); } 好了，以上就是post请求(参数+cookie)的使用过程
那么下面就是 post请求(单文件+参数+cookie)了
/** * @网络请求--post请求(单文件+参数+cookie) * url地址，map是参数集合，f是文件，name是header的key，value是header的value,CallBack回调方法 */ public void postFileCookie(String url, String f, Map map, String name, String value, final CallBack callback) { OkHttpClient okHttpClient = new OkHttpClient.Builder().cookieJar(new CookieJar() { @Override public void saveFromResponse(HttpUrl httpUrl, List list) { cookieStore.put(httpUrl.host(), list); } @Override public List loadForRequest(HttpUrl httpUrl) { List cookies = cookieStore.get(httpUrl.host()); return cookies != null ? cookies : new ArrayList(); } }).build(); MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM); for (Map.Entry entry : map.entrySet()) { builder.addFormDataPart(entry.getKey(), entry.getValue()); } File file = new File(f); if (file != null) { builder.addFormDataPart("file", file.getName(), RequestBody.create(MediaType.parse("file/*"), file)); } MultipartBody requestBody = builder.build(); Request request = new Request.Builder() .url(url) .header(name, value) .post(requestBody) .build(); Call call = okHttpClient.newCall(request); call.enqueue(new okhttp3.Callback() { @Override public void onFailure(Call call, final IOException e) { Log.e(TAG, "onFailure:" + e.getCause().getStackTrace() + e.getMessage()); handler.post(new Runnable() { @Override public void run() { callback.onFailed( e); } }); } @Override public void onResponse(Call call, Response response) throws IOException { final String result = response.body().string(); handler.post(new Runnable() { @Override public void run() { callback.onSuccess(result); } }); } }); } 下面是post请求(单文件+参数+cookie)使用时的代码
private void post() { OkhttpUtil okhttpUtil = new OkhttpUtil(); String url = "这里是所要访问的url地址"; Map map = new HashMap<>(); map.put("enterprise", "enterprise");//向map集合中添加参数 map.put("checklogid", checklogid); okhttpUtil.postFileCookie(url, savedFile, map, "cookie", "JSESSIONID=" + getToken(), new CallBack() { @Override public void onSuccess(String request) {//请求成功 final Gson gson = new Gson(); updateBean newsBean = gson.fromJson(request, updateBean.class);//解析传回的json数据 String message = newsBean.getMessage();//获取想要拿到的数据 } @Override public void onFailed(Exception e) {//请求失败 Toast.makeText(getActivity(), "网络错误", Toast.LENGTH_SHORT).show(); } }); } 以下是post请求(多文件+参数+cookie)
/** * @网络请求--post请求(多文件+参数+cookie) * url地址，map是参数集合，list是文件集合，name是header的key，value是header的value,CallBack回调方法 */ public void postFileParameterCookie(String url, Map map, List list, String name, String value, final CallBack callback) { if (list.size() > 0) { OkHttpClient okHttpClient = new OkHttpClient.Builder().cookieJar(new CookieJar() { @Override public void saveFromResponse(HttpUrl httpUrl, List list) { cookieStore.put(httpUrl.host(), list); } @Override public List loadForRequest(HttpUrl httpUrl) { List cookies = cookieStore.get(httpUrl.host()); return cookies != null ? cookies : new ArrayList(); } }).build(); MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM); for (int i = 0; i < list.size(); i++) {遍历集合中的文件 File file = new File(list.get(i)); if (file != null) { builder.addFormDataPart("file", file.getName(), RequestBody.create(MediaType.parse("file/*"), file)); } } for (Map.Entry entry : map.entrySet()) { builder.addFormDataPart(entry.getKey(), entry.getValue()); } MultipartBody requestBody = builder.build(); Request request = new Request.Builder() .url(url) .header(name, value)//身份标识 .post(requestBody) .build(); Call call = okHttpClient.newCall(request); call.enqueue(new okhttp3.Callback() { @Override public void onFailure(Call call, final IOException e) {//访问失败 Log.e(TAG, "onFailure:" + e.getCause().getStackTrace() + e.getMessage()); handler.post(new Runnable() { @Override public void run() { callback.onFailed(e); } }); } @Override public void onResponse(Call call, Response response) throws IOException {//访问成功 final String result = response.body().string(); handler.post(new Runnable() { @Override public void run() { callback.onSuccess(result); } }); } }); } } 下面是post请求(多文件+参数+cookie)使用时的代码
private void post(List list) { String url = "访问的url地址"; OkhttpUtil okhttpUtil = new OkhttpUtil(); Map map= new HashMap<>(); map.put("rectifyday", rectifyday);//向map中添加参数 map.put("treatmethod", treatmethod); okhttpUtil.postFileParameterCookie(url, map, list, "cookie", "JSESSIONID=" + getToken(), new CallBack() { @Override public void onSuccess(String request) { final Gson gson = new Gson(); updateBean newsBean = gson.fromJson(request, updateBean.class);//解析传回的json数据 String message = newsBean.getMessage();//获取想要拿到的数据 } @Override public void onFailed( Exception e) { Toast.makeText(UpdateActivity.this, "网络错误", Toast.LENGTH_SHORT).show(); } }); } 其中的CallBack是另写的一个接口，代码如下：
public interface CallBack{ void onSuccess(String request); void onFailed(Exception e);}以上就是我对okhttp的封装。
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