Question

When I build my application I get following errors. Can you please let me know how to resolve it. My application needs to be supported on all platforms (Andriod, IOS, windows) and I don't want to write native code for all platforms separately. 

java:4: error: package java.lang.reflect does not exist
        import java.lang.reflect.UndeclaredThrowableException;
java:6: error: package javax.crypto does not exist
        import javax.crypto.Mac;
             ^
7: error: package javax.crypto.spec does not exist
       import javax.crypto.spec.SecretKeySpec;
java:48: error: cannot find symbol Mac hmac;
50: error: cannot find symbol
       [javac]              hmac = Mac.getInstance(crypto);

^ java：53：错误：找不到符号 [javac] SecretKeySpec macKey = ^ [javac] symbol：class SecretKeySpec [javac] location：类TokenGenerator java：55：错误：找不到符号 [javac] new SecretKeySpec（keyBytes，“RAW”）; ^ [javac] symbol：class SecretKeySpec [javac] location：类TokenGenerator java：61：错误：找不到符号 [javac]} catch（GeneralSecurityException gse）{ [javac] ^ java：63：错误：找不到符号 [javac]抛出新的UndeclaredThrowableException（gse）; [javac] ^ symbol：class UndeclaredThrowableException [javac] location：class TokenGenerator

Answer 1

Codename One不支持这些软件包。反射不能以高效的方式在设备上实现，并且不应该被普遍使用，因为它与模糊处理相冲突，这是移动设备的推荐最佳实践。

Crypto是一个包含导出限制和反射依赖性的大型设计包。我们为bouncy castle提供了cn1lib扩展。

Codenameone：在构建期间无法找到包

1 个答案: