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jiangping

2025-07-09 c11680cb9911cd00084c99c75099e571be2a08d1

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package com.doumee.core.servlet;
 
import lombok.extern.slf4j.Slf4j;
 
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import java.io.IOException;
 
/**
 * 增加响应流副本
 * @author  dm
 * @since 2025/03/31 16:44
 */
@Slf4j
public class ServletDuplicateResponseWrapper extends HttpServletResponseWrapper {
 
/*
    private ServletDuplicateOutputStream servletDuplicateOutputStream;
 
    public ServletDuplicateResponseWrapper(HttpServletResponse httpServletResponse) {
        super(httpServletResponse);
        try {
            servletDuplicateOutputStream = new ServletDuplicateOutputStream(httpServletResponse.getOutputStream());
        } catch (IOException e) {
            log.error("EVA: build ServletDuplicateResponseWrapper throw an exception", e);
        }
    }
 
    @Override
    public ServletOutputStream getOutputStream() {
        if (servletDuplicateOutputStream == null) {
            servletDuplicateOutputStream = new ServletDuplicateOutputStream(super.getOutputStream());
        }
        return servletDuplicateOutputStream;
    }
*/
 
    private ServletDuplicateOutputStream servletDuplicateOutputStream;
 
    public ServletDuplicateResponseWrapper(HttpServletResponse httpServletResponse) {
        super(httpServletResponse);
    }
 
    @Override
    public ServletOutputStream getOutputStream() throws IOException {
        if (servletDuplicateOutputStream == null) {
            servletDuplicateOutputStream = new ServletDuplicateOutputStream(super.getOutputStream());
        }
        return servletDuplicateOutputStream;
    }
 
}