使用Maven添加依赖项时(Add Dependency)时,没有提示项目可用,并且在Console中,输出: Unable to update index for central|http://repo1.maven.org/maven2 . 解决方式如下: 1.通过其它方式下载如下两个文件: http://repo1.maven.org/maven2/.index/nexus-maven-repository-index.properties http://repo1.maven.org/m…
有的时候我们建项目的时候忘记添加项目的依赖了,这里示范一个提示错误,就是 The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 接下来是演示如何添加依赖 一.右键项目àBuild Path àConfigure Build Path 二. 三. 四.在这里选择你安装的Tomcat环境版本…
依赖属性 ".NET properties are nothing more than syntactic sugar over set and get methods." 我们知道.NET的属性只不过是get/set方法的语法糖衣. "Dependency properties are the workhorse of WPF. This infrastructure provides for many of WPF's features, such as data bin…