maven依赖

        <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.83</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.9</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.14</version><scope>provided</scope></dependency>

controller

import com.alibaba.fastjson.JSONObject;
import com.alibaba.gts.flm.authorize.center.biz.core.util.ParamUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;import javax.servlet.http.HttpServletRequest;
import java.math.BigDecimal;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;@RestController
@Slf4j
public class AuthorizeController {@Autowiredprivate RestTemplate restTemplate;private static final String LOG_PATTERN = System.lineSeparator() + "    ip:{}" + System.lineSeparator() + "    method:{}" + System.lineSeparator() + "    url:{}" + System.lineSeparator() + "    req:{}" + System.lineSeparator() + "    header:{}" + System.lineSeparator() + "    resp:{}" + System.lineSeparator() + "    time:{}" + System.lineSeparator() + "    req.size:{}" + System.lineSeparator() + "    resp.size:{}" + System.lineSeparator();@RequestMapping("/**")public Object handle(HttpServletRequest request) throws Exception {String requestURI = request.getRequestURI();// 鉴权// 转发return forward(request);}private Object forward(HttpServletRequest request) throws Exception {String req = ParamUtil.getParam(request);Enumeration<String> parameterNames = request.getParameterNames();Enumeration<String> headerNames = request.getHeaderNames();String method = request.getMethod();String requestURI = request.getRequestURI();String proxyUri = requestURI;StringBuffer params = new StringBuffer();while (parameterNames.hasMoreElements()) {String s = parameterNames.nextElement();params.append(s).append("=").append(request.getParameter(s)).append("&");}if (params.length() > 0) {params.delete(params.length() - 1, params.length());proxyUri += "?" + params;}HttpHeaders headers = new HttpHeaders();Map<String, String> headerParams = new HashMap<>();while (headerNames.hasMoreElements()) {String s = headerNames.nextElement();headers.set(s, request.getHeader(s));headerParams.put(s, request.getHeader(s));}HttpEntity<String> proxyRequest = null;if (req != null && req.length() > 3) {proxyRequest = new HttpEntity<>(req, headers);} else {proxyRequest = new HttpEntity<>(headers);}ResponseEntity<Object> result;String url = "http://192.168.1.1:" + getPort(requestURI) + proxyUri;try {long currentTimeMillis = System.currentTimeMillis();result = restTemplate.exchange(url, getMethod(method), proxyRequest, Object.class);log.info(LOG_PATTERN, request.getRemoteHost(), url, method, smallStr(req), JSONObject.toJSONString(headerParams),smallStr(JSONObject.toJSONString(result.getBody())), getHaoShi(currentTimeMillis),getSize(req), getSize(JSONObject.toJSONString(result.getBody())));return result.getBody();} catch (Exception e) {if (e.getMessage().contains("404")) {log.warn("404 uri:{}", requestURI);} else {log.error("[post]接口调用失败,url:{},req:{},error:{}", url, smallStr(req),ExceptionUtils.getStackTrace(e));}JSONObject res = new JSONObject();res.put("code", 500);res.put("success", Boolean.FALSE);res.put("msg", e.getMessage());return res;}}private String getPort(String uri) {return "20003";}private HttpMethod getMethod(String method) {switch (method) {case "GET":return HttpMethod.GET;case "HEAD":return HttpMethod.HEAD;case "POST":return HttpMethod.POST;case "PUT":return HttpMethod.PUT;case "PATCH":return HttpMethod.PATCH;case "DELETE":return HttpMethod.DELETE;case "OPTIONS":return HttpMethod.OPTIONS;case "TRACE":return HttpMethod.TRACE;default:break;}return null;}public String smallStr(String str) {if (str == null) {return null;}boolean tooLong = str.length() > 1000;return tooLong ? str.substring(0, 1000) + " ..." : str;}/*** 计算耗时** @param time 开始时间戳(毫秒)* @return*/public static String getHaoShi(Long time) {long t = System.currentTimeMillis() - time;double d7 = t / 1000.0 / 60 / 60 / 24 / 30 / 12 / 100;if (d7 > 1) return round(d7, 1) + "纪元";double d6 = t / 1000.0 / 60 / 60 / 24 / 30 / 12;if (d6 > 1) return round(d6, 1) + "年";double d5 = t / 1000.0 / 60 / 60 / 24 / 30;if (d5 > 1) return round(d5, 1) + "月";double d4 = t / 1000.0 / 60 / 60 / 24;if (d4 > 1) return round(d4, 1) + "天";double d3 = t / 1000.0 / 60 / 60;if (d3 > 1) return round(d3, 1) + "小时";double d2 = t / 1000.0 / 60;if (d2 > 1) return round(d2, 1) + "分钟";double d1 = t / 1000.0;if (d1 > 1) return round(d1, 1) + "秒";return t + "毫秒";}/*** 计算大小** @param str 字符串* @return*/public static String getSize(String str) {if (str == null) {return "-";}byte[] bytes = str.getBytes();int length = bytes.length;double d7 = length / Math.pow(1024.0, 7);if (d7 > 1) return round(d7, 1) + "ZB";double d6 = length / Math.pow(1024.0, 6);if (d6 > 1) return round(d6, 1) + "EB";double d5 = length / Math.pow(1024.0, 5);if (d5 > 1) return round(d5, 1) + "PB";double d4 = length / Math.pow(1024.0, 4);if (d4 > 1) return round(d4, 1) + "TB";double d3 = length / Math.pow(1024.0, 3);if (d3 > 1) return round(d3, 1) + "GB";double d2 = length / Math.pow(1024.0, 2);if (d2 > 1) return round(d2, 1) + "MB";double d1 = length / Math.pow(1024.0, 1);;if (d1 > 1) return round(d1, 1) + "KB";return length + "B";}public static Double round(Double data, int amount) {if (data == null) {return null;} else {double result = (new BigDecimal(data)).setScale(amount, 4).doubleValue();return result;}}
}