Retrofit，Okhttp对每个Request统一动态添加header和参数（五）

文/Tamic

地址：http://blog.csdn.net/sk719887916/article/details/52189602

Header

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);
}
});

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[/code]

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);
}
});

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[/code]

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);
}
});

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[/code]

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