http://blog.csdn.net/bit2012_2015/article/details/22798779java
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问题缘由:Eclipse 默认把这些受访问限制的API设成了ERROR.net
解决方法:ssr
1. Windows-> Preferences -> Java -> Compiler -> Errors/Warnings ->Deprecatedand trstricted API -> Forbidden reference (access rules): -> change towarningblog
2. 只须要在projectbuild path中先移除JRESystem Library,再添加库JRESystem Library,从新编译后就一切正常了。ip
3. 工程上右键->工程属性->javabuilder path->Libraries标签,点击JRE SystemLibrary里面的Accessrules,addsun/** 为accessible,若是该项存在,就edit。it
4. Windows-> Preferences -> Java -> Installed JREs -> 选择用的JDK-> Edit -> Add External JARs编译