Retrofit使用OkHttp保存和添加cookie

oepp8190 3年前
   <p>Retrofit的cookie的保存和添加都可以用<strong>Interceptor</strong>来实现<br> 下面是接收请求中返回并保存cookie的代码示例:</p>    <pre>  <code class="language-java">public class ReceivedCookiesInterceptor implements Interceptor {      private Context context;        public ReceivedCookiesInterceptor(Context context) {          super();          this.context = context;        }        @Override      public Response intercept(Chain chain) throws IOException {            Response originalResponse = chain.proceed(chain.request());          //这里获取请求返回的cookie          if (!originalResponse.headers("Set-Cookie").isEmpty()) {              final StringBuffer cookieBuffer = new StringBuffer();              //最近在学习RxJava,这里用了RxJava的相关API大家可以忽略,用自己逻辑实现即可.大家可以用别的方法保存cookie数据              Observable.from(originalResponse.headers("Set-Cookie"))                      .map(new Func1<String, String>() {                          @Override                          public String call(String s) {                              String[] cookieArray = s.split(";");                              return cookieArray[0];                          }                      })                      .subscribe(new Action1<String>() {                          @Override                          public void call(String cookie) {                              cookieBuffer.append(cookie).append(";");                          }                      });              SharedPreferences sharedPreferences = context.getSharedPreferences("cookie", Context.MODE_PRIVATE);              SharedPreferences.Editor editor = sharedPreferences.edit();              editor.putString("cookie", cookieBuffer.toString());              editor.commit();          }            return originalResponse;      }</code></pre>    <p>向请求中添加cookie,代码如下:</p>    <pre>  <code class="language-java">public class AddCookiesInterceptor implements Interceptor {      private Context context;        public AddCookiesInterceptor(Context context) {          super();          this.context = context;        }        @Override      public Response intercept(Chain chain) throws IOException {            final Request.Builder builder = chain.request().newBuilder();          SharedPreferences sharedPreferences = context.getSharedPreferences("cookie", Context.MODE_PRIVATE);  //最近在学习RxJava,这里用了RxJava的相关API大家可以忽略,用自己逻辑实现即可                    Observable.just(sharedPreferences.getString("cookie", ""))                  .subscribe(new Action1<String>() {                      @Override                      public void call(String cookie) {                          //添加cookie                          builder.addHeader("Cookie", cookie);                      }                  });          return chain.proceed(builder.build());      }  }</code></pre>    <p>在Retrofit做如下设置即可在每次请求中保存和添加cookie:<br> 本人使用的Retrofit2.0可能Retrofit1.9中代码略有不同,但这个思路应该也可以用在1.9版本中,希望对大家有所帮助</p>    <pre>  <code class="language-java">   public static OkHttpClient getClient(Context context) {          OkHttpClient client = getUnsafeOkHttpClient();          client.interceptors().add(new ReceivedCookiesInterceptor(context));          client.interceptors().add(new AddCookiesInterceptor(context));            return client;      }</code></pre>    <p><br> <a href="/misc/goto?guid=4959675374965240657">阅读原文</a></p>