java.nio.charset.MalformedInputException: Input length = 1

产生的错误

java.nio.charset.MalformedInputException: Input length = 1

发生的原因

post请求接收数据时,由于对接方发送过来的数据量过大,经过nginx时,被Gzip进行数据流压缩,导致使用InputStream 流读取body数据抛出上述异常

解决方案

配置拦截器

对指定的路径进行拦截器body进行Gzip解压处理

import java.io.IOException;
import java.util.Arrays;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

@Component
@WebFilter(
        filterName = "GZIPFilter",
        urlPatterns = {
          
   "/test/**"}
)
@Slf4j
public class GZIPFilter implements Filter {
          
   
    private static final String[] gzipPath = new String[]{
          
   "/test/add"};

    public GZIPFilter() {
          
   
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
          
   
        HttpServletRequest req = (HttpServletRequest) request;
        String url = req.getRequestURI();
        log.info(" url: {}", url);
        if (Arrays.asList(gzipPath).contains(url)) {
          
   
            // 对指定路径下的请求进行gzip解压
            chain.doFilter(new GZIPRequestWrapper((HttpServletRequest) request), response);
        } else {
          
   
            chain.doFilter(request, response);
        }
    }

    public void destroy() {
          
   
    }
}

解压

解压gzip

import lombok.extern.slf4j.Slf4j;

import java.io.IOException;
import java.util.zip.GZIPInputStream;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

@Slf4j
public class GZIPRequestWrapper extends HttpServletRequestWrapper {
          
   
    private HttpServletRequest request;

    public GZIPRequestWrapper(HttpServletRequest request) {
          
   
        super(request);
        this.request = request;
    }

    public ServletInputStream getInputStream() throws IOException {
          
   
        ServletInputStream stream = this.request.getInputStream();
        String contentEncoding = this.request.getHeader("Content-Encoding");
        log.info(" contentEncoding: {}", contentEncoding);

        if (null != contentEncoding && contentEncoding.indexOf("gzip") != -1) {
          
   
            try {
          
   
                final GZIPInputStream gzipInputStream = new GZIPInputStream(stream);
                ServletInputStream newStream = new ServletInputStream() {
          
   
                    public int read() throws IOException {
          
   
                        return gzipInputStream.read();
                    }

                    public boolean isFinished() {
          
   
                        return false;
                    }

                    public boolean isReady() {
          
   
                        return false;
                    }

                    public void setReadListener(ReadListener arg0) {
          
   
                    }
                };
                return newStream;
            } catch (Exception var5) {
          
   
                var5.printStackTrace();
            }
        }

        return stream;
    }
}