Android Retrofit RxJava Okhttp

Retrofit 2.0 超能实践（五），动态Okhttp对Request统一添加header和Parameter

RxJava+Retrofit 系列文章

Posted by Tamic on 2016-07-03

文/Tamic
地址：http://tamicer.com

Header

How to Add header to Every Request

添加统一通用header， 不会覆盖前面的header

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okHttpClient.interceptors().add(new Interceptor() {  
    @Override
    public Response intercept(Interceptor.Chain chain) throws IOException {
        Request original = chain.request();
        // Request customization: add request headers
        Request.Builder requestBuilder = original.newBuilder()
                    .addHeader("header-key", "value1")
                    .addHeader("header-key", "value2");
        Request request = requestBuilder.build();
        return chain.proceed(request);
    }
});

添加统一通用header， 会覆盖前面的header

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okHttpClient.interceptors().add(new Interceptor() {  
    @Override
    public Response intercept(Interceptor.Chain chain) throws IOException {
        Request original = chain.request();
        // Request customization: add request headers
        Request.Builder requestBuilder = original.newBuilder()
                .header("headerkey", "header-value"); // <-- this is the important line
        Request request = requestBuilder.build();
        return chain.proceed(request);
    }
});

Parameters

How to Add Query Parameters to Every Request

拦截器Interceptor，是okhttp的一大特点，后续我会对他进行介绍

拦截器添加参数用 addQueryParameter（）函式来实现。

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    OkHttpClient.Builder httpClient =  
    new OkHttpClient.Builder();
httpClient.addInterceptor(new Interceptor() {  
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request original = chain.request();
        HttpUrl originalHttpUrl = original.url();
        HttpUrl url = originalHttpUrl.newBuilder()
                .addQueryParameter("apikey", "you value")
                .build();
        // Request customization: add request headers
        Request.Builder requestBuilder = original.newBuilder()
                .url(url);
        Request request = requestBuilder.build();
        return chain.proceed(request);
    }
});

Retrofit+RxJava结合系列请阅读：


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