package com.whyc.filter;
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import org.springframework.util.StreamUtils;
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import javax.servlet.ReadListener;
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import javax.servlet.ServletInputStream;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletRequestWrapper;
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import java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class BodyReaderHttpServletRequestWrapper extends HttpServletRequestWrapper {
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//保存流
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private byte[] requestBody = null;
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public BodyReaderHttpServletRequestWrapper(HttpServletRequest request) throws IOException {
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super(request);
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requestBody = StreamUtils.copyToByteArray(request.getInputStream());
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}
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@Override
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public ServletInputStream getInputStream() throws IOException {
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final ByteArrayInputStream bais = new ByteArrayInputStream(requestBody);
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return new ServletInputStream() {
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@Override
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public int read() throws IOException {
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return bais.read();
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}
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@Override
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public boolean isFinished() {
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return false;
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}
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@Override
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public boolean isReady() {
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return false;
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}
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@Override
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public void setReadListener(ReadListener readListener) {
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}
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};
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}
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@Override
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public BufferedReader getReader() throws IOException {
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return new BufferedReader(new InputStreamReader(getInputStream()));
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}
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}
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