java.lang.IllegalStateException: Cannot forward after response has been committed

半栈学徒

于 2020-02-14 17:03:28 发布

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java.lang.IllegalStateException: Cannot forward after response has been committed这种错误一般是servlet里面的service方法里面有两个转发或者重定向
如

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    req.getRequestDispatcher("/hello.jsp").forward(req, resp);
    req.getRequestDispatcher("/hello.jsp").forward(req, resp);
}

解决办法，去掉一个转发请求；