項目開發的時候，有同事遇到了一個Gson解析的異常，原因是Base64字符串中有空格造成的

1、修改前

 /**
     * 獲取Retrofit設置
     * @param ctx 上下文
     * @param serverUrl 請求地址
     * @param certificateIn 證書文件流
     * @param certificatePwd 證書密碼
     * @return retrofit
     */
    protected Retrofit getRetrofit(Context ctx, String serverUrl, InputStream certificateIn, String certificatePwd) {
        Retrofit.Builder builder = new Retrofit.Builder();
        builder.baseUrl(serverUrl);
        builder.client(genericClient(ctx, serverUrl, certificateIn, certificatePwd));
        builder.validateEagerly(true);
        builder.addConverterFactory(GsonConverterFactory.create(gson));
        builder.addCallAdapterFactory(RxJavaCallAdapterFactory.create());

        return builder.build();
    }

2、修改后

 /**
     * 獲取Retrofit設置
     * @param ctx 上下文
     * @param serverUrl 請求地址
     * @param certificateIn 證書文件流
     * @param certificatePwd 證書密碼
     * @return retrofit
     */
    protected Retrofit getRetrofit(Context ctx, String serverUrl, InputStream certificateIn, String certificatePwd) {
        Gson gson = new GsonBuilder()
                .setLenient()
                .create();
        Retrofit.Builder builder = new Retrofit.Builder();
        builder.baseUrl(serverUrl);
        builder.client(genericClient(ctx, serverUrl, certificateIn, certificatePwd));
        builder.validateEagerly(true);
        builder.addConverterFactory(GsonConverterFactory.create(gson));
        builder.addCallAdapterFactory(RxJavaCallAdapterFactory.create());

        return builder.build();
    }

3、修改關鍵處

 Gson gson = new GsonBuilder()
                .setLenient()
                .create();