springboot 拦截器 记录前后端交互日志

/**建类继承HttpServletRequestWrapper */
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

public class RequestWrapper extends HttpServletRequestWrapper {
    private final String body;

    public RequestWrapper(HttpServletRequest request) throws IOException {
        super(request);
        StringBuilder stringBuilder = new StringBuilder();
        BufferedReader bufferedReader = null;
        try {
            bufferedReader = request.getReader();
            if (bufferedReader != null) {
                char[] charBuffer = new char[128];
                int bytesRead = -1;
                while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {
                    stringBuilder.append(charBuffer, 0, bytesRead);
                }
            } else {
                stringBuilder.append("");
            }
        } catch (IOException ex) {
            throw ex;
        } finally {
            if (bufferedReader != null) {
                try {
                    bufferedReader.close();
                } catch (IOException ex) {
                    throw ex;
                }
            }
        }
        body = stringBuilder.toString();
    }

    @Override
    public ServletInputStream getInputStream() throws IOException {
        final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(body.getBytes("utf-8"));
        ServletInputStream servletInputStream = new ServletInputStream() {
            @Override
            public boolean isFinished() {
                return false;
            }

            @Override
            public boolean isReady() {
                return false;
            }

            @Override
            public void setReadListener(ReadListener readListener) {

            }

            public int read() throws IOException {
                return byteArrayInputStream.read();
            }
        };
        return servletInputStream;
    }

    @Override
    public BufferedReader getReader() throws IOException {
        return new BufferedReader(new InputStreamReader(this.getInputStream()));
    }

    public String getBody() {
        return this.body;
    }
}

/**过滤器*/

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.lqting.common.utils.EmptyUtil;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.util.Enumeration;

@WebFilter(filterName = "apiLogFilter", urlPatterns = {"/*"})
public class ApiRequestDataFilter implements Filter {
    @Override
    public void destroy() {

    }

    /**
     * 从请求中获取数据
     */
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain filter) throws IOException, ServletException {
        try {
            HttpServletRequest httpRequest = (HttpServletRequest) request;
            String method = httpRequest.getMethod();
            //如过请求为Post类型，从Stream中去数据
            if ("post".equalsIgnoreCase(method)) {
                if (!isMultipartContent(httpRequest)) {
                    RequestWrapper requestWrapper = new RequestWrapper(httpRequest);
                    requestWrapper.setAttribute("x-data", requestWrapper.getBody());
                    filter.doFilter(requestWrapper, response);
                } else {
                    filter.doFilter(httpRequest, response);
                }
            } else if ("get".equalsIgnoreCase(method)) {
                Enumeration<String> pNames = httpRequest.getParameterNames();
                if (EmptyUtil.isNotEmpty(pNames)) {
                    JSONObject data = new JSONObject();
                    String ele = null;
                    while (pNames.hasMoreElements()) {
                        ele = pNames.nextElement();
                        data.put(ele, httpRequest.getParameter(ele));
                    }
                    request.setAttribute("x-data", JSON.toJSONString(data));
                }
                filter.doFilter(request, response);
            } else {
                filter.doFilter(request, response);
            }
        } catch (IOException e) {
            e.printStackTrace();
            filter.doFilter(request, response);
        }
    }

    /**
     * 判断是否是multipart/form-data请求
     *
     * @param request
     * @return
     */
    public static boolean isMultipartContent(HttpServletRequest request) {
        String contentType = request.getContentType();  //获取Content-Type  
        if ((contentType != null) && (contentType.toLowerCase().startsWith("multipart/"))) {
            return true;
        } else {
            return false;
        }
    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {

    }
}

/**使用*/

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class Test  extends HandlerInterceptorAdapter {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println(String.valueOf(request.getAttribute("x-data")));
        return true;
    }
}

/**配置过滤器*/

@SpringBootApplication
@ServletComponentScan
@EnableCaching
public class MainApplication extends SpringBootServletInitializer {

   public static void main(String[] args) {
      SpringApplication.run(MainApplication.class, args);
   }

   @Override
   protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
      return application.sources(MainApplication.class);
   }
}