package com.example.myapplication
import com.example.myapplication.AccountDBEntity
import com.example.myapplication.ProfileDBEntity
/**
* Base profile response from network query
*/
data class ProfileNWEntity(
val user: Int,
val name: String,
val status: String
)
// map the profile from network to database format
fun ProfileNWEntity.asDBEntity(): ProfileDBEntity {
return ProfileDBEntity(
id = user,
name = name
)
}
package com.example.myapplication
import android.content.Context
import dagger.hilt.android.qualifiers.ApplicationContext
import okhttp3.OkHttpClient
import retrofit2.Retrofit
import retrofit2.converter.gson.GsonConverterFactory
import javax.inject.Inject
class RetrofitWithCookie @Inject constructor(
context: Context, // uses Hilt to inject the context to be passed to the interceptors
gson: Gson
) {
private val mContext = context
private val gson = gson
fun createRetrofit(): Retrofit {
val client: OkHttpClient
val builder = OkHttpClient.Builder()
builder.addInterceptor(AddCookiesInterceptor(mContext)) // VERY VERY IMPORTANT
builder.addInterceptor(ReceivedCookiesInterceptor(mContext)) // VERY VERY IMPORTANT
client = builder.build()
return Retrofit.Builder()
.baseUrl("myServer URL") // REQUIRED
.client(client) // VERY VERY IMPORTANT
.addConverterFactory(GsonConverterFactory.create(gson))
.build() // REQUIRED
}
}
接收拦截器捕获入站cookie并将其保存在sharedpreferences中
package com.example.myapplication
import android.content.Context
import androidx.preference.PreferenceManager
import okhttp3.Interceptor
import okhttp3.Response
import java.io.IOException
import java.util.*
// Original written by tsuharesu
// Adapted to create a "drop it in and watch it work" approach by Nikhil Jha.
// Just add your package statement and drop it in the folder with all your other classes.
class ReceivedCookiesInterceptor(context: Context?) : Interceptor {
private val context: Context?
@Throws(IOException::class)
override fun intercept(chain: Interceptor.Chain): Response {
val originalResponse = chain.proceed(chain.request())
if (!originalResponse.headers("Set-Cookie").isEmpty()) {
val cookies = PreferenceManager.getDefaultSharedPreferences(context)
.getStringSet("PREF_COOKIES", HashSet()) as HashSet<String>?
for (header in originalResponse.headers("Set-Cookie")) {
cookies!!.add(header)
}
val memes = PreferenceManager.getDefaultSharedPreferences(context).edit()
memes.putStringSet("PREF_COOKIES", cookies).apply()
memes.commit()
}
return originalResponse
}
init {
this.context = context
} // AddCookiesInterceptor()
}
AddCookies拦截器将cookie添加回将来的请求中
package com.example.myapplication
import android.content.Context
import androidx.preference.PreferenceManager
import dagger.hilt.android.qualifiers.ActivityContext
import okhttp3.Interceptor
import okhttp3.Response
import timber.log.Timber
import java.io.IOException
import java.util.*
// Original written by tsuharesu
// Adapted to create a "drop it in and watch it work" approach by Nikhil Jha.
// Just add your package statement and drop it in the folder with all your other classes.
/**
* This interceptor put all the Cookies in Preferences in the Request.
* Your implementation on how to get the Preferences may ary, but this will work 99% of the time.
*/
class AddCookiesInterceptor(@ActivityContext context: Context?) : Interceptor {
// We're storing our stuff in a database made just for cookies called PREF_COOKIES.
// I reccomend you do this, and don't change this default value.
private val context: Context?
@Throws(IOException::class)
override fun intercept(chain: Interceptor.Chain): Response {
val builder = chain.request().newBuilder()
val preferences = PreferenceManager.getDefaultSharedPreferences(context).getStringSet(
PREF_COOKIES, HashSet()
) as HashSet<String>?
// Use the following if you need everything in one line.
// Some APIs die if you do it differently.
/*String cookiestring = "";
for (String cookie : preferences) {
String[] parser = cookie.split(";");
cookiestring = cookiestring + parser[0] + "; ";
}
builder.addHeader("Cookie", cookiestring);
*/for (cookie in preferences!!) {
builder.addHeader("Cookie", cookie)
Timber.d("adding cookie %s", cookie)
}
return chain.proceed(builder.build())
}
companion object {
const val PREF_COOKIES = "PREF_COOKIES"
}
init {
this.context = context
}
}
将其连接在一起的手柄模块
package com.example.myapplication
import android.content.Context
import com.example.myapplication.Network
import com.google.gson.Gson
import com.google.gson.GsonBuilder
import dagger.Module
import dagger.Provides
import dagger.hilt.InstallIn
import dagger.hilt.android.qualifiers.ApplicationContext
import dagger.hilt.components.SingletonComponent
import retrofit2.Retrofit
import retrofit2.converter.gson.GsonConverterFactory
import javax.inject.Singleton
@InstallIn(SingletonComponent::class)
@Module
class NetworkModule {
@Singleton
@Provides
fun provideNetwork(retrofit: Retrofit)
: Network = retrofit.create(Network::class.java)
@Singleton
@Provides
fun provideRetrofitWithCookie(
@ApplicationContext context: Context,
gson: Gson
): Retrofit = RetrofitWithCookie(context, gson).createRetrofit()
@Singleton
@Provides
fun provideGson(): Gson = GsonBuilder()
.setDateFormat("yyyy-MM-dd'T'HH:mm:ssZ") // used for parsing other responses
.create()
}
1条答案
按热度按时间s4n0splo1#
我本以为这是一个如此常见的使用案例,以至于我无法相信答案不在网络上到处都是,但我不得不努力工作,把所有的碎片放在一起。下面是从存储库开始对我起作用的方法。我没有包括数据库方面的东西,因为它在许多地方都有很好的记录,而且我发现它很容易理解(如果有人需要我包括这一点,请告诉我)。我在部分过程中切换到了Kotlin,因为我只能在Java中找到答案的某些部分。我的示例是登录用户并获取基本的配置文件详细信息。
存储库将登录详细信息发送到服务器并将响应保存在数据库中,然后提取该信息以另存为LiveData
Retrofit端点定义登录过程
Entity -Gson用来解析网络响应,存储库用来适应数据库
Retrofit类以启用包含cookie(连同下面包含的拦截器,这来自tsuharesu和Nikhil Jha在https://gist.github.com/nikhiljha/52d45ca69a8415c6990d2a63f61184ff上的工作)
接收拦截器捕获入站cookie并将其保存在sharedpreferences中
AddCookies拦截器将cookie添加回将来的请求中
将其连接在一起的手柄模块