Retrofit，Okhttp对每个Request统一动态添加header和参数

How to Add header to Every Request


添加统一通用header， 不会覆盖前面的header


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


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


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", "your-actual-api-key")
                .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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