Java Http接口加签、验签操作方法

package com.pcmall;

import java.io.BufferedReader;					
import java.io.DataOutputStream;					
import java.io.IOException;					
import java.io.InputStreamReader;					
import java.io.UnsupportedEncodingException;					
import java.net.HttpURLConnection;					
import java.net.URL;					
import java.net.URLEncoder;					
import java.security.MessageDigest;					
import java.security.NoSuchAlgorithmException;					
import java.util.ArrayList;					
import java.util.Collections;					
import java.util.Iterator;					
import java.util.List;					
import java.util.Map;					
import java.util.TreeMap;
					
public class APITest {					
  static String TEST_URL = "待定";					
  static String TEST_KEY = "待定";					
  static String TEST_SEC = "待定";					
  					
  public static void main(String[] args) throws UnsupportedEncodingException,NoSuchAlgorithmException {					
    String result = getResult(TEST_URL,getReqParam());					
    System.out.print(result);					
  }					
					
  private static String getReqParam() throws UnsupportedEncodingException,NoSuchAlgorithmException {					
  	TreeMap<String,String> req = new TreeMap<String,String>();			
    req.put("a",TEST_KEY);					
    req.put("f","json");					
    req.put("l","zh_CN");					
    req.put("m","zhongan.repair.query");					
    req.put("v","1.0");					
    req.put("i","" + System.currentTimeMillis() / 1000);					
    req.put("params","{"assignNo":"TEST018"}");					
    req.put("s",sign(req,null,TEST_SEC));					
    					
    StringBuilder param = new StringBuilder();					
    for (Iterator<Map.Entry<String,String>> it = req.entrySet().iterator(); it.hasNext();) {					
      Map.Entry<String,String> e = it.next();					
      param.append("&").append(e.getKey()).append("=").append(URLEncoder.encode(e.getValue(),"UTF-8"));					
    }					
    					
    return param.toString().substring(1);					
  }					
  					
  private static String sign(Map<String,String> paramValues,List<String> ignoreParamNames,String secret) throws NoSuchAlgorithmException,UnsupportedEncodingException {					
    StringBuilder sb = new StringBuilder();					
    List<String> paramNames = new ArrayList<String>(paramValues.size());					
    paramNames.addAll(paramValues.keySet());					
    if (ignoreParamNames != null && ignoreParamNames.size() > 0) {					
      for (String ignoreParamName : ignoreParamNames) {					
        paramNames.remove(ignoreParamName);					
      }					
    }					
    Collections.sort(paramNames);					
    					
    sb.append(secret);					
    for (String paramName : paramNames) {					
      sb.append(paramName).append(paramValues.get(paramName));					
    }					
    sb.append(secret);					
					
    MessageDigest md = MessageDigest.getInstance("SHA-1");					
    return byte2hex(md.digest(sb.toString().getBytes("UTF-8")));					
  }					
  					
  private static String byte2hex(byte[] bytes) {					
    StringBuilder sign = new StringBuilder();					
    for (int i = 0; i < bytes.length; i++) {					
      String hex = Integer.toHexString(bytes[i] & 0xFF);					
      if (hex.length() == 1) {					
        sign.append("0");					
      }					
      sign.append(hex.toUpperCase());					
    }					
    return sign.toString();					
  }					
  					
  private static String getResult(String urlStr,String content) {					
    URL url = null;					
    HttpURLConnection connection = null;					
    try {					
      url = new URL(urlStr);					
      connection = (HttpURLConnection) url.openConnection();					
      connection.setDoOutput(true);					
      connection.setDoInput(true);					
      connection.setRequestMethod("POST");					
      connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded;charset=UTF-8");					
      connection.setUseCaches(false);					
      connection.connect();					
      					
      DataOutputStream out = new DataOutputStream(connection.getOutputStream());					
      out.write(content.getBytes("UTF-8"));					
      out.flush();					
      out.close();					
      					
      BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),"UTF-8"));					
      StringBuffer buffer = new StringBuffer();					
      String line = "";					
      while ((line = reader.readLine()) != null) {					
        buffer.append(line);					
      }					
      reader.close();					
					
      return buffer.toString();					
    } catch (IOException e) {					
      e.printStackTrace();					
    } finally {					
      if (connection != null) {					
        connection.disconnect();					
      }					
    }					
    					
    return null;					
  }	
  
  
}

@RequestMapping("/repairTakeOrder")
	@ResponseBody
	public ResponseVO repairTakeOrder(@RequestBody String jsonStr) {
		logger.info("repairTakeOrder入参：" + jsonStr);

		ResponseVO responseVO = null;
		try {
			RepairOrder repairOrder = JackJsonUtil.toBean(jsonStr,RepairOrder.class);
			TreeMap<String,String> paramsMap = new TreeMap<String,String>();
			paramsMap.put("gsxx01",repairOrder.getGsxx01());
			paramsMap.put("orderType",repairOrder.getOrderType().toString());
			paramsMap.put("serviceNo",repairOrder.getServiceNo());
			paramsMap.put("vipCard",repairOrder.getVipCard());
			paramsMap.put("customerName",repairOrder.getCustomerName());
			paramsMap.put("customerPhone",repairOrder.getCustomerPhone());
			paramsMap.put("customerTel",repairOrder.getCustomerTel());
			paramsMap.put("province",repairOrder.getProvince());
			paramsMap.put("city",repairOrder.getCity());
			paramsMap.put("county",repairOrder.getCounty());
			paramsMap.put("address",repairOrder.getAddress());
			paramsMap.put("salerCode",repairOrder.getSalerCode());
			paramsMap.put("salerName",repairOrder.getSalerName());
			paramsMap.put("storeCode",repairOrder.getStoreCode());
			paramsMap.put("storeName",repairOrder.getStoreName());
			paramsMap.put("site",repairOrder.getSite());

			paramsMap.put("siteDesp",repairOrder.getSiteDesp());
			paramsMap.put("engineerCode",repairOrder.getEngineerCode());
			paramsMap.put("engineerName",repairOrder.getEngineerName());
			if (repairOrder.getServiceDate() != null) {
				paramsMap.put("serviceDate",DateUtils.formatDate(repairOrder.getServiceDate()));
			}

			if (repairOrder.getSalePrice() != null) {
				paramsMap.put("salePrice",repairOrder.getSalePrice()
						.toString());
			}

			paramsMap.put("profitCenter",repairOrder.getProfitCenter());
			paramsMap.put("costCenter",repairOrder.getCostCenter());
			paramsMap.put("gsxx02",repairOrder.getGsxx02());
			paramsMap.put("returnReason",repairOrder.getReturnReason());
			if (repairOrder.getOriOrder() != null) {
				paramsMap.put("oriOrder",repairOrder.getOriOrder().toString());
			}

			if (repairOrder.getOriServiceNo() != null) {
				paramsMap.put("oriServiceNo",repairOrder.getOriServiceNo());
			}

			// 拼接签名原串(a=1&b=2)
			String paramSrc = RequestUtils.getParamSrc(paramsMap);
			logger.info("签名原串：" + paramSrc);
			//进行验签操作
			if (SignUtils.verifymd5(paramSrc,repairOrder.getSign())) {
				//处理业务逻辑
				responseVO=erpServiceImpl.repairTakeOrder(repairOrder);
				
			} else {
				responseVO = new ResponseVO();
				responseVO.setSuccess(false);
				responseVO.setErrorMsg("验签失败");
			}

		} catch (Exception e) {
			logger.error("",e);
			responseVO = new ResponseVO();
			responseVO.setSuccess(false);
			responseVO.setErrorMsg(StringUtils.isNotBlank(e.getMessage()) ? e.getMessage() : "后台异常");
		}
		return responseVO;

	}