严重: Servlet.service() for servlet [RegServlet] in context with path [/ShoppingCart] threw exception
java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed
at org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:482)
java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed
at org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:482)
at com.servlets.RegServlet.doPost(RegServlet.java:56)
响应被提交之后不能调用重定向函数!
Servlet重定向异常解析
本文分析了在Servlet中出现的IllegalStateException异常原因,该异常发生在尝试在响应已提交后使用sendRedirect方法进行页面重定向时。文章详细解释了此错误产生的背景,并提供了RegServlet.java:56行的具体出错位置。
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