java.lang.IllegalStateException: getWriter() has already been called for this response

java.lang.IllegalStateException: getWriter() has already been called for this response

出现原因：

1.代码中有打开的Response.getWriter()，未关闭

2.再次使用了ServletOutputStream out = response.getOutputStream();

通过查看代码，response中的usingWriter=true，想办法将该标志位设置为false。

response.reset(); 即可

扩展：OutputStream和Writer在一个response中不能同时获得。

时间： 2024-11-07 18:40:44

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