getWriter() has already been called for this response 的解决办法
2017-08-15 09:07
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情况1:
getWriter() has already been called for this response
response已经被其他对象调用了,导致无法继续使用如下 类似的方法
PrintWriter out = response.getWriter();
out.print("就是不让我使用");
out.flush();
out.close();
郁闷了一个早上,后来翻了几遍API,nnd 直接 这么写就OK了。真晕
response.reset();
PrintWriter out = response.getWriter();
out.print("看你还让不让我使用");
out.flush();
out.close();
不过reset的时候 有可能要response.setContentType(String);一下。
情况2:
在使用httpResponse的getWriter()会写json是出现 getWriter() has already been called for this response,经我查看源码,采用
getWriter() has already been called for this response
response已经被其他对象调用了,导致无法继续使用如下 类似的方法
PrintWriter out = response.getWriter();
out.print("就是不让我使用");
out.flush();
out.close();
郁闷了一个早上,后来翻了几遍API,nnd 直接 这么写就OK了。真晕
response.reset();
PrintWriter out = response.getWriter();
out.print("看你还让不让我使用");
out.flush();
out.close();
不过reset的时候 有可能要response.setContentType(String);一下。
情况2:
在使用httpResponse的getWriter()会写json是出现 getWriter() has already been called for this response,经我查看源码,采用
getOutputStream()代替getWriter()这样就可以避免这个问题(备注这个问题不是常有,有的spring boot版本有这个问题),这样可以用getOutputStream()会写
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