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你好,我有,我不能把我的手指上有問題.....的getOutputStream()已經呼籲對第二servlet請求此響應
servletResp.setHeader("Expires","0")
servletResp.setHeader("Cache-Control","must-revalidate, post-check=0, pre-check=0")
servletResp.setHeader("Pragma","public")
servletResp.setHeader("Content-Disposition","inline; filename=invoice.pdf")
servletResp.setContentType("application/pdf")
servletResp.setContentLength(outStream.size())
servletResponseStream.write(outStream.toByteArray())
outStream.close()
servletResponseStream.flush()
servletResponseStream.close()
在上面的代碼假設outStream有閱讀pdf文件。第一次請求代碼呈現良好。在第二個要求我得到:
java.lang.IllegalStateException: getOutputStream() has already been called for this response
什麼outputstream是沒有關係。即使我製作了一個全新的字節[2],並且寫出了相同的結果。在第一次請求服務器響應良好。在第二上述例外情況....
什麼是outStream.close()? – r0ast3d
outStream.close已經關閉了你的流響應,請提供一個行號和更多代碼 – r0ast3d
@ r0ast3d不,outStream看起來像是一個ByteArrayOutputStream,沒有連接到servlet輸出流。 – EJP