package com.ruoyi.common.filter;
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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.*;
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import java.nio.charset.StandardCharsets;
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/**
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* 解决服务器字符集问题
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*
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* @author 文敏杰
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* @date 2026/06/25
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*/
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public class CustomRequestWrapper extends HttpServletRequestWrapper {
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private final byte[] body;
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public CustomRequestWrapper(HttpServletRequest request, String body) {
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super(request);
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this.body = body.getBytes(StandardCharsets.UTF_8);
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}
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@Override
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public ServletInputStream getInputStream() {
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ByteArrayInputStream bis =
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new ByteArrayInputStream(body);
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return new ServletInputStream() {
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@Override
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public int read() {
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return bis.read();
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}
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@Override
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public boolean isFinished() {
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return bis.available() == 0;
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}
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@Override
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public boolean isReady() {
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return true;
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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() {
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return new BufferedReader(
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new InputStreamReader(
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getInputStream(),
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StandardCharsets.UTF_8
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)
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);
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}
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@Override
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public String getCharacterEncoding() {
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return StandardCharsets.UTF_8.name();
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}
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@Override
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public int getContentLength() {
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return body.length;
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}
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@Override
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public long getContentLengthLong() {
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return body.length;
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}
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}
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