java.lang.IllegalStateException: PWC3997: getReader() has already been called for this request

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This happens when you read the input as binary stream getInputStream() and character stream getReader, you can only use one way, or you can try this workaround https://goo.gl/IspUjB

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via Stack Overflow by JayP
, 1 year ago
PWC3997: getReader() has already been called for this request
via Stack Overflow by smas
, 2 years ago
via ask-coder.com by Unknown author, 2 years ago
via nabble.com by Unknown author, 2 years ago
java.lang.IllegalStateException: PWC3997: getReader() has already been called for this request
at org.apache.catalina.connector.Request.getInputStream(Request.java:1178)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:120)

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