jsp getOutputStream() has already been called for this response异常解决方法
添加以下两段代码即可,我是在用jsp输出图像的时候出现这个问题 out.clear(); out = pageContext.pushBody(); 附上我的输出图像的JSP代码 <%@ page info="Random Image Show" pageEncoding="UTF-8" contentType="image/jpg" autoFlush="true" buffer="16kb" session="false" import="java.io.FileInputStream"%> <% ServletOutputStream sos = null; if (sos == null) sos = response.getOutputStream(); FileInputStream fis = new FileInputStream((String) request.getAttribute("filename")); byte[] buf = new byte[1024]; //缓冲区大小 int len = 0; while ((len = fis.read(buf)) != -1) { sos.write(buf, 0, len); [...]