首页 › Java › java.lang.IllegalStateException: getOutputStream() has already been called for t

wjc_3306 发表于 2013-2-6 11:04:17

java.lang.IllegalStateException: getOutputStream() has already been called for t

下载文件时抛出的异常
java.lang.IllegalStateException: getOutputStream() has already been called for this response

这个问题是由于jsp的response对象和java中调用getOutputStream() 冲突
在action结束时加上return null; 解决

查看完整版本: java.lang.IllegalStateException: getOutputStream() has already been called for t