报错 BASE64Encoder cannot be resolved to a type

               
解决方法:
1.在Libraries中,选择JRE System Libraries,选择Access rules,点击Edit
报错 BASE64Encoder cannot be resolved to a type
2.点击Add添加rule,Resolution选择Accessible,Rule Pattern填**(如果**依旧不能解决,填sun/**即可)
报错 BASE64Encoder cannot be resolved to a type
           

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