Question

嘿，我需要一些帮助＆＃34; okhttp＆＃34;。我想存储我从请求中获得的cookie，以便稍后在应用程序中重用它。我遇到了这个例子，但问题是我不知道Preferences类在哪个包中。我怎样才能导入它？如果我使用自动填充功能，我可以使用import java.util.prefs.Preferences;。但它不是机器人。它不包含getDefaultPreferences()方法。请参阅以下链接中的代码。

在AddCookiesInterceptor.java的第12行：

HashSet<String> preferences = (HashSet) Preferences
    .getDefaultPreferences()
    .getStringSet(Preferences.PREF_COOKIES, new HashSet<>());

http://tsuharesu.com/handling-cookies-with-okhttp/

/**
 * This interceptor put all the Cookies in Preferences in the Request.
 * Your implementation on how to get the Preferences MAY VARY.
 * <p>
 * Created by tsuharesu on 4/1/15.
 */
public class AddCookiesInterceptor implements Interceptor {

    @Override
    public Response intercept(Chain chain) throws IOException {
        Request.Builder builder = chain.request().newBuilder();
        HashSet<String> preferences = (HashSet) Preferences.getDefaultPreferences().getStringSet(Preferences.PREF_COOKIES, new HashSet<>());
        for (String cookie : preferences) {
            builder.addHeader("Cookie", cookie);
            Log.v("OkHttp", "Adding Header: " + cookie); // This is done so I know which headers are being added; this interceptor is used after the normal logging of OkHttp
        }

        return chain.proceed(builder.build());
    }
}

Answer 1

您需要创建一个PreferenceManager类，其中包含mSharedPreferences成员变量。通过调用mSharedPreferences来实例化mApplicationContext.getSharedPreferences(name, mode)。

Answer 2

package com.trainerworkout.trainerworkout.network;

import android.content.Context;
import android.preference.PreferenceManager;
import android.util.Log;

import java.io.IOException;
import java.util.HashSet;

import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

/**
 * This interceptor put all the Cookies in Preferences in the Request.
 * Your implementation on how to get the Preferences MAY VARY.
 */
public class AddCookiesInterceptor implements Interceptor {
    public static final String PREF_COOKIES = "PREF_COOKIES";
    private Context context;

    public AddCookiesInterceptor(Context context) {
        this.context = context;
    } // AddCookiesInterceptor()

    @Override
    public Response intercept(Interceptor.Chain chain) throws IOException {
        Request.Builder builder = chain.request().newBuilder();
        HashSet<String> preferences = (HashSet<String>) PreferenceManager.getDefaultSharedPreferences(context).getStringSet(PREF_COOKIES, new HashSet<String>());
        for (String cookie : preferences) {
            builder.addHeader("Cookie", cookie);
            Log.v("OkHttp", "Adding Header: " + cookie); // This is done so I know which headers are being added; this interceptor is used after the normal logging of OkHttp
        } // for

        return chain.proceed(builder.build());
    } // intercept()
} // AddCookiesInterceptor

在某处你创建一个新的OkHttpClient并在你的所有请求中使用它。

public static OkHttpClient client = new OkHttpClient();
private OkHttpClient.Builder builder = new OkHttpClient.Builder();

builder.addInterceptor(new AddCookiesInterceptor(context));
builder.addInterceptor(new ReceivedCookiesInterceptor(context));
client = builder.build();

使用OkHttp / Retrofit处理Cookie - 无法解析符号＆＃39;首选项＆＃39;

2 个答案: