如何修复Android上海绵城堡的错误:找不到类java.awt.datatransfer.DataFlavor
我使用lib-Spongy-Castle在Android上对邮件进行签名和加密 当我运行我的应用程序时,它返回以下错误:如何修复Android上海绵城堡的错误:找不到类java.awt.datatransfer.DataFlavor,java,android,email,bouncycastle,spongycastle,Java,Android,Email,Bouncycastle,Spongycastle,我使用lib-Spongy-Castle在Android上对邮件进行签名和加密 当我运行我的应用程序时,它返回以下错误: 11-13 08:54:11.867: E/dalvikvm(13188): Could not find class '[Ljava.awt.datatransfer.DataFlavor;', referenced from method org.spongycastle.mail.smime.handlers.multipart_signed.<clinit>
11-13 08:54:11.867: E/dalvikvm(13188): Could not find class '[Ljava.awt.datatransfer.DataFlavor;', referenced from method org.spongycastle.mail.smime.handlers.multipart_signed.<clinit>
11-13 08:54:11.890: E/AndroidRuntime(13188): FATAL EXCEPTION: main
11-13 08:54:11.890: E/AndroidRuntime(13188): java.lang.VerifyError: org.spongycastle.mail.smime.handlers.multipart_signed
11-13 08:54:11.890: E/AndroidRuntime(13188): at java.lang.Class.newInstanceImpl(Native Method)
11-13 08:54:11.890: E/AndroidRuntime(13188): at java.lang.Class.newInstance(Class.java:1409)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.activation.MailcapCommandMap.getDataContentHandler(MailcapCommandMap.java:609)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.activation.MailcapCommandMap.createDataContentHandler(MailcapCommandMap.java:563)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.activation.DataHandler.getDataContentHandler(DataHandler.java:626)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.activation.DataHandler.writeTo(DataHandler.java:329)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1403)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1745)
11-13 08:54:11.890: E/AndroidRuntime(13188): at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1721)
(链接:)
我认为它必须导入包java.awt,我将rt.jar(包括java.awt.*)导入到我的项目中,但它仍然存在这个错误 我修复了我的错误:+我下载了
+将行“import java.awt.datatransfer.DataFlavor;”替换为“import myjava.awt.datatransfer.DataFlavor;”(包myjava.awt.datatransfer包含在中)
+重建海绵城堡库
+使用新的spongycastle库,我成功地解决了这个问题: 0)在邮件包上运行BEN-spongy.sh脚本(来自“海绵脚本”分支) 1) 在mail/src/main/
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.spongycastle">
</manifest>
3) 在处理程序文件(spongycastle/mail/src/main/java/org/spongycastle/mail/smime/handlers/)中:
a) 删除import java.awt.datatransfer.DataFlavor
b) 移除将java.awt.datatransfer.DataFlavor变量/返回类型替换为javax.activation.ActivationDataFlavor
4) 在android项目中,将该文件夹作为模块包括在内
5) 建立并享受乐趣;D
在这里,您可以看到工作的spongycastle邮件包的外观:
下面是一个android应用程序的示例,它使用固定版本通过smtp发送加密的smime消息rt.jar来自哪个包?您确定它包含
java.awt.datatransfer.*
?我从JRE系统库中获得了rt.jar,它包含java.awt.datatransfer.*Android不是标准的java平台。有关更多信息,请参阅SO主题。
package org.spongycastle.mail.smime.handlers;
import org.spongycastle.mail.smime.SMIMEStreamingProcessor;
import javax.activation.ActivationDataFlavor;
import javax.activation.DataContentHandler;
import javax.activation.DataSource;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.internet.ContentType;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
import java.awt.datatransfer.DataFlavor;
import java.io.BufferedInputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.spongycastle">
</manifest>
apply plugin: 'com.android.library'
dependencies {
compile 'com.sun.mail:android-mail:1.5.5'
compile 'com.sun.mail:android:1.5.5'
compile 'com.madgag.spongycastle:pkix:1.54.0.0'
compile 'com.madgag.spongycastle:prov:1.54.0.0'
compile 'com.madgag.spongycastle:core:1.54.0.0'
testCompile 'junit:junit:4.12'
}
android {
compileSdkVersion 24
buildToolsVersion "24.0.0"
defaultConfig {
minSdkVersion 15
targetSdkVersion 24
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}