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问题：配置文件错误—— Element ‘beans’ cannot have character [children],because the type’s content type is element原因：从网上copy下来的代码空格中含有莫名其妙的看不见的符号解决：简单粗暴的方法：把所有空格删除...

问题：严重: Servlet.service() for servlet jsp threw exceptionorg.apache.jasper.JasperException: The absolute uri:http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xmlor the jar files ...

在jsp页面中的显示’‘yyyy-mm-dd’’在jsp页面开头添加<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fmt" uri="http://java.sun.com/js

问题：问题详情：HTTP Status 500 -type Exception reportmessage description The server encountered an internal error that prevented itfrom fulfilling this request.exception java.lang.NullPointerExceptio...