Android retrofit2 添加Header body加密，返回參數分析

1、添加Header

OkHttpClient.Builder httpClient = new OkHttpClient.Builder();

//添加Log
httpClient.addNetworkInterceptor(getInterceptor(true));

//添加固定的header參數
httpClient.readTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS);
httpClient.connectTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS);
httpClient.writeTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS);

//針對不同的情況寫 Log  
private HttpLoggingInterceptor getInterceptor(boolean debug) {
    HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
    if (debug) {
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY); // 測試
    } else {
        interceptor.setLevel(HttpLoggingInterceptor.Level.NONE); // 打包
    }
    return interceptor;
}

　　

//添加動態的Header
httpClient.addInterceptor(new HttpHeadInterceptor());

private class HttpHeadInterceptor implements Interceptor {
public HttpHeadInterceptor() {
       
    }

    @Override
    public okhttp3.Response intercept(Chain chain) throws IOException {
        Request originalRequest = chain.request();
        Request.Builder requestBuilder = originalRequest.newBuilder();


        requestBuilder.addHeader("time", "時間");

        //添加User-Agent
        String user = HttpHead.getUserAgent();
        requestBuilder.addHeader("User-Agent", user);


        Request request = requestBuilder.build();
        okhttp3.Response response = chain.proceed(request);

        //獲取response的header
        String responseHeadTime = response.header("time").toString();return response;
    }
}

2、生成Retrofit對象

Retrofit retrofit = new Retrofit.Builder()
                                .baseUrl("http://xxxxxxxxxxxxxxxxxxxx")
                                .client(httpClient.build())
                                .addConverterFactory(GsonConverterFactory.create(date, httpHeadInfo))
                                .build();

　　

GsonConverterFactory是附加器（按照設計模式，好像是AOP，面向切面編程）


3、body加密的時候，寫在GsonConverterFactory的 requestBodyConverter 裏

注意，相對於ASP.Net mvc來說，接口裏邊傳入@Body的話呢，在服務器端是接收不到的。你需要把這些東西通過 FormBody重新賦值一下

    @Override
    public RequestBody convert(T value) throws IOException {

        if (value instanceof BaseSign) {
            String jsonstr = gson.toJson(value);

            String key = "android";
            Logger.debug("xxx", "AES加密前：" + jsonstr + "     key=" + key);
            key = Md5Util.parseStrToMd5L32(key);
            String newRequest = AESUtils.initEncode(jsonstr, key);

            return new FormBody.Builder().add("data", newRequest).build();

        } else {
            //這裏是不加密的
            return RequestBody.create(MEDIA_TYPE, "");
        }