转:[Java] Access restriction: The type FtpClient is not accessible due torestriction on required libr
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下面部分内容转自:http://blog.csdn.net/mango_song/article/details/8314432
处理 加载不了rt.jar下面的sun.net.ftp.FtpClient类
在做ftp,代码中引用
import sun.net.ftp.FtpClient;
报如下错误
Access restriction: The type FtpClient is not accessible due torestriction on required library D:\ProgramFiles\Java\jre6\lib\rt.jar
1.
确定 Java TM 是版本6 而不是 版本7 (因为现在从官网在线安装java时默认为TM7了,这样eclipse默认使用jre7下面的jar包,而FtpClient在jre7中被修改了,其构造函数FtpClient()被定义为private类型,FtpClientftp=new FtpClient()会报错:cannont instantiate the type FtpClient)
2.
sun.net包里的类,在eclipse里默认是不让用的。解决办法是自定义accessrules
工程上右键->工程属性->java builderpath->Libraries标签,点击JRE System Library里面的Accessrules,add sun/** 为accessible,如果该项存在,就edit。
3.
另外给大家推荐一个找jar包的网址 http://www.findjar.com非常方便,能根据你输入的类查找包含该类的jar包,很赞的~O(∩_∩)O~
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