我正在创建一个https用于与服务器通信的android应用程序.我正在使用retrofit并OkHttp提出请求.这些适用于标准http请求.以下是我遵循的步骤.
步骤1: 使用该命令从服务器获取cert文件
echo -n | openssl s_client -connect api.****.tk:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > gtux.cert
步骤2: 使用以下命令将证书转换为BKS格式
keytool -importcert -v -trustcacerts -file "gtux.cert" -alias imeto_alias -keystore "my_keystore.bks" -provider org.bouncycastle.jce.provider.BouncyCastleProvider -providerpath "bcprov-jdk16-146.jar" -storetype BKS
它问我密码并且文件已成功创建.
第3步:
创建一个OkHttpClient并使用它来发出https请求
public class MySSLTrust {
public static OkHttpClient trustcert(Context context){
OkHttpClient okHttpClient = new OkHttpClient();
try {
KeyStore ksTrust = KeyStore.getInstance("BKS");
InputStream instream = context.getResources().openRawResource(R.raw.my_keystore);
ksTrust.load(instream, "secret".toCharArray());
// TrustManager decides which certificate authorities to …我一直在尝试将Firebase应用内消息添加到我们的android项目中.它成功构建但是当我在模拟器/设备中运行应用程序时,它会抛出以下错误.
com.android.builder.dexing.DexArchiveBuilderException: com.android.builder.dexing.DexArchiveBuilderException: Failed to process /Users/gowthamraj/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/20.0/89507701249388e1ed5ddcf8c41f4ce1be7831ef/guava-20.0.jar
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:593)
at java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677)
at java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:720)
at com.android.ide.common.internal.WaitableExecutor.waitForTasksWithQuickFail(WaitableExecutor.java:146)
at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.transform(DexArchiveBuilderTransform.java:405)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:239)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:235)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:230)
at sun.reflect.GeneratedMethodAccessor1162.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:124)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:113)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:95)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:73)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
at …我想将Realm字段的数据类型更改String为int和FYI字段也是一个Primary Key.我找不到RealmMigration解决这个问题的方法.
PS:我的应用程序已经投入生产,当前该字段中的所有值都是整数.
编辑1
我的Model类
public class Team extends RealmObject {
@SerializedName("id")
@PrimaryKey
private int id;
@SerializedName("name")
private String name;
@SerializedName("description")
private String description;
}
在尝试克里斯蒂安的回答后,我的迁移
if (oldVersion == 6) {
RealmObjectSchema teamSchema = schema.get("Team");
teamSchema.addField("temp_id", int.class)
.transform(new RealmObjectSchema.Function() {
@Override
public void apply(DynamicRealmObject obj) {
obj.setInt("temp_id", Integer.valueOf(obj.getString("id")));
}
})
.removeField("id")
.renameField("temp_id", "id")
.addPrimaryKey("id");
}
嗨,我目前正在开发一个使用Retrofit进行网络呼叫的Android应用程序.这是对我的要求的基本概述.
1.Get Facebook access token and send it to the server.
2.The server sets a Session cookie in the response.
3.In all the upcoming requests send the session cookies back.
当前问题:
除非用户正在使用该应用程序(跨越不同的活动),否则我能够保持会话cookie活着.但是一旦用户退出应用程序,Cookie就会被删除.我已经在一个类似于Application类的类中声明了这些cookie .即使在应用程序退出后,我仍需要保持这些会话cookie活着.这样当用户再次打开我的应用程序时,我可以使用它们进行进一步处理.
以下是我在应用程序中实现的一些代码片段.
AppController.java(Application类的子类)
public class AppController extends Application {
private static AppController mInstance;
private static OkHttpClient client;
private static CookieManager cookieManager;
private static Context context;
private static AviyalApiService api; // custom interface having all the GET and POST
private static OkClient okClient;
private static RestAdapter …