Java 如何在模块中提供动态字符串,例如(服务器响应)?
我最近在我的项目中使用了新的Android Injector with Dagger 2,我有一个问题: 我想提供一个动态字符串与匕首,我不知道如何做到这一点; 我从服务器收到一个令牌,需要将此作为字段传递给OkHttp3CookieHelper的实例; 我该怎么做 我试图将这个字符串传递给模块构造函数,但我认为这不是真的! 我想也许应该使用@BindsInstance!! 请帮忙;) 这是我的AppModule:Java 如何在模块中提供动态字符串,例如(服务器响应)?,java,android,dagger-2,androidinjector,Java,Android,Dagger 2,Androidinjector,我最近在我的项目中使用了新的Android Injector with Dagger 2,我有一个问题: 我想提供一个动态字符串与匕首,我不知道如何做到这一点; 我从服务器收到一个令牌,需要将此作为字段传递给OkHttp3CookieHelper的实例; 我该怎么做 我试图将这个字符串传递给模块构造函数,但我认为这不是真的! 我想也许应该使用@BindsInstance!! 请帮忙;) 这是我的AppModule: @Module(subcomponents = {MainActivityCom
@Module(subcomponents = {MainActivityComponent.class})
public class AppModule {
private String cookie ;
public AppModule(String Cookie){
this.cookie = Cookie;
}
@Singleton
@Provides
Context provideContext(Application application) {
return application;
}
@Singleton
@Provides
OkHttp3CookieHelper provideCookie(@Named("baseURL") String baseURL,
@Named("csrfToken") String csrfToken) {
OkHttp3CookieHelper cookieHelper = new OkHttp3CookieHelper();
cookieHelper.setCookie(baseURL, csrfToken, cookie);
return cookieHelper;
}
@Singleton
@Provides
OkHttpClient.Builder provideOkHttp(HttpLoggingInterceptor interceptor,
OkHttp3CookieHelper cookieHelper) {
final OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.connectTimeout(8, TimeUnit.SECONDS);
httpClient.readTimeout(8, TimeUnit.SECONDS);
httpClient.callTimeout(8, TimeUnit.SECONDS);
httpClient.cookieJar(cookieHelper.cookieJar());
httpClient.addInterceptor(interceptor);
return httpClient;
}
@Singleton
@Provides
HttpLoggingInterceptor provideHttpInterceptor() {
final HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
return interceptor;
}
@Singleton
@Provides
GsonConverterFactory provideGsonConverterFactory() {
return GsonConverterFactory.create();
}
@Singleton
@Provides
@Named("baseURL")
String provideBaseURL() {
return Const.BASE_URL;
}
@Singleton
@Provides
@Named("csrfToken")
String provideCrfToken() {
return Const.CRF_TOKEN;
}
@Singleton
@Provides
Api provideApi(Retrofit retrofit) {
return retrofit.create(Api.class);
}
@Singleton
@Provides
Retrofit provideRetrofit(GsonConverterFactory converterFactory, OkHttpClient.Builder httpClient,
@Named("baseURL") String baseURL) {
return new Retrofit.Builder().baseUrl(baseURL)
.addConverterFactory(converterFactory)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.client(httpClient.build())
.build();
}
@Singleton
@Provides
SharedPreferences provideSharedPreference(Context context) {
return context.getSharedPreferences("myShp", Context.MODE_PRIVATE);
}
//and this is my AppComponent :
@Singleton
@Component(modules = {AndroidInjectionModule.class, ActivityBuilder.class, AppModule.class,
ViewModelFactoryModule.class})
public interface AppComponent {
@Component.Builder
interface Builder {
@BindsInstance
Builder application(Application application);
AppComponent build();
}
void inject(App app);
}
问题:
最后,经过大约10个小时的搜索和阅读,我解决了我的问题:D 注意 无需自行传递响应令牌,也无需将依赖项(在本例中为响应令牌)绑定到AppComponent中,但如果您想这样做,可以使用@Component.Builder或@Component.Factory,您可以使用以下有用的文章: 但要解决这个问题: 首先应将此依赖项添加到app.gradle文件:
implementation 'com.github.franmontiel:PersistentCookieJar:v1.0.1'
然后在appMoule类中提供PersistentCookieJar的实例,并
传递到我们的OkHttpClient实例:
@Singleton
@Provides
PersistentCookieJar ProvideCookieJar(Context context) {
return new PersistentCookieJar(new SetCookieCache(),
new SharedPrefsCookiePersistor(context));
}
@Singleton
@Provides
OkHttpClient.Builder provideOkHttp(HttpLoggingInterceptor interceptor,
PersistentCookieJar persistentCookieJar) {
final OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.connectTimeout(8, TimeUnit.SECONDS);
httpClient.readTimeout(8, TimeUnit.SECONDS);
httpClient.callTimeout(8, TimeUnit.SECONDS);
httpClient.cookieJar(persistentCookieJar);
httpClient.addInterceptor(interceptor);
return httpClient;
}
不要忘记提供创建PersistentCookieJar实例所需的上下文:
@Provides
@Singleton
Context provideContext(Application application) {
return application;
}
在应用程序类中,应绑定应用程序类:
DaggerAppComponent.builder()
.application(this)
.build()
.inject(this);
您的AppComponent应该是这样的:
@Singleton
@Component(modules = {AndroidInjectionModule.class, ActivityBuilder.class,
AppModule.class, ViewModelFactoryModule.class})
public interface AppComponent {
@Component.Builder
interface Builder {
@BindsInstance
Builder application(Application application);
AppComponent build();
}
void inject(App app);
}
好的,每件事都做完了!
现在,您的请求包含cookie
并且成功地获得服务器响应:)辅助注入应该可以实现无人能帮助的效果吗(