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Servlet請求轉發時報錯Cannot forward after response has been committed
時間 2021-01-13
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JavaWeb
servlet
tomcat
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Tomcat
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這個錯誤的原因是因爲調用了父類的super.doGet(req, resp);(doPost(req, resp()也一樣) 由於請求轉發是一次請求,調用了父類的super.doGet(req, resp);執行完,就等於已經響應了一次,後面再去跳轉響應,會造成重複提交,然後報錯。因此,去掉super.doGet(req, resp)的調用即可。
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