【JavaWeb】Access restriction The type is not accessible due to restriction on required library

MyEclipse无法访问到jar包的解决方法

MyEclipse中编写Java代码时,用到了BASE64Decoder
import sun.misc.BASE64Decoder;
和图片处理相关的
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

可是Eclipse提示:
Access restriction: The type BASE64Decoder is not accessible due to restriction on required library
和Access restriction: The type JPEGImageEncoder is not accessible due to restriction on required library

两个异常属于是同一类型,所以可以通过如下的两种解决方法:
方法一:
只需要在project build path中先移除JRE System Library,再添加库JRE System Library,重新编译后就一切正常了

方法二:
Eclipse默认把这些受访问限制的API设成了ERROR,所以修改为警告即可:Windows -> Preferences -> Java -> Compiler -> Errors/Warnings ->
Deprecated and trstricted API -> Forbidden reference (access rules): -> change to warning

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