一道關於C#參數傳遞的面試題剖析。本站提示廣大學習愛好者：（一道關於C#參數傳遞的面試題剖析）文章只能為提供參考，不一定能成為您想要的結果。以下是一道關於C#參數傳遞的面試題剖析正文
空話不多說了，直接給年夜家貼java代碼了。
詳細代碼以下所示：
/*付出流程*/
/****Controller.java 代碼以下：*/
@RequestMapping(value = "/paySubmit.htm", method = RequestMethod.POST)
public ModelAndView paySubmit(HttpServletRequest request,
HttpServletResponse response, @RequestParam Map<String, Object> maps){
ModelAndView model = new ModelAndView("***/submit");
/**
* 代碼塊
*/
return model;
}
/*submit.jsp 代碼以下：*/
<%@ page contentType="text/html;charset=UTF-8" language="java" trimDirectiveWhitespaces="true" %>
<%@ page import="com.***.util.PayUtil" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>付出</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
</head>
<body>
<%
request.setCharacterEncoding("UTF-8");
String type = (String) request.getAttribute("type");
String sHtmlText = "";
if ("1".equals(type)){
sHtmlText = PayUtil.buildForm(
(String) request.getAttribute("orderNo"),
(String) request.getAttribute("amt"),type);
}else{
sHtmlText = PayUtil.allInPaybuildForm(
(String) request.getAttribute("orderNo"),
(String) request.getAttribute("amt"),type,request);
}
out.println(sHtmlText);
%>
</body>
</html>
/* PayUtil.java 代碼以下：*/
/**
* 生成頁面數據
* @param url 三方付出的URL
* @param sPara
* @param strMethod
* @return
*/
public static String buildRequest(String url, Map<String, String> sPara, String strMethod) {
ArrayList keys = new ArrayList(sPara.keySet());
StringBuffer sbHtml = new StringBuffer();
sbHtml.append("<form id=\"paySubForm\" name=\"paySubForm\" action=\"" + url + "\" method=\"" + strMethod + "\">");
for(int i = 0; i < keys.size(); ++i) {
String name = (String)keys.get(i);
String value = (String)sPara.get(name);
sbHtml.append("<input type=\"hidden\" name=\"" + name + "\" value=\"" + value + "\"/>");
}
sbHtml.append("<input type=\"submit\" name=\"b1\" value=\"確認\" style=\"display:none;\"></form>");
sbHtml.append("<script>document.forms[\'paySubForm\'].submit();</script>");
return sbHtml.toString();
}
/**
* 以平易近生付出為例
* @param orderNo
* @param amt
* @param type
* @return
*/
public static String buildForm(String orderNo, String amt,String type) {
//商戶編號
String merchantid = PropertiesRead.use_classLoador().getProperty("CMBC.pay.id");
//定單編號 商戶的生意業務訂單號,由商戶網站生成,最年夜長度30
String merorderid = orderNo;
//金 額
String amountsum = amt;
//商種類類
String subject = PropertiesRead.use_classLoador().getProperty("CMBC.pay.type");//"empty";
//幣 種 01 為cny
String currencytype = "01";
//主動調轉取貨頁面0→不跳轉；1→跳轉
String autojump = "1";
//跳轉期待時光
String waittime = "0";
//商戶取貨URL
String merurl = PropertiesRead.use_classLoador().getProperty("CMBC.pay.return.page.url");
//能否告訴商戶: 0→欠亨知；1→告訴
String informmer = "1";
//商戶告訴URL
String informurl = PropertiesRead.use_classLoador().getProperty("CMBC.pay.return.notify.url");
/**
* 商戶前往確認: 0→不前往；1→前往
*/
String confirm = "1";
//付出銀行
String merbank = "empty";
//付出類型 0→即時到賬；1→擔保生意業務
String tradetype = "0";
//能否在商戶端選擇銀行:0→其他；1→在商戶端選擇銀行
String bankInput = "0";
//接口版本
String strInterface = "5.00";
//備 注 (可選) 付出備注信息,最年夜長度50
String remark = "充值";
//付出銀行卡類型 00→假貸混雜；01→純借記
String bankcardtype = "00";
//商品描寫
String pdtdnm = "虛擬商品";
//商品描寫地址
String pdtdetailurl = PropertiesRead.use_classLoador().getProperty("CMBC.pay.return.detail.url");
//付出密鑰(必填): 需在付出平台停止設置,可登錄商戶治理體系停止保護,用於上送商戶付出及下傳付出成果加密
String MD5key = PropertiesRead.use_classLoador().getProperty("CMBC.pay.pwd");
//拼接加密的源字符串
String mac_src="merchantid="+merchantid+"&merorderid="+merorderid
+"&amountsum="+amountsum+"&subject="+subject
+"¤cytype="+currencytype+"&autojump="+autojump
+ "&waittime=" + waittime +"&merurl="+merurl
+ "&informmer=" + informmer +"&informurl=" +informurl
+ "&confirm=" + confirm + "&merbank=" + merbank
+ "&tradetype=" + tradetype + "&bankInput=" + bankInput
+ "&interface=" + strInterface + "&bankcardtype=" + bankcardtype
+ "&pdtdetailurl=" + pdtdetailurl + "&merkey="+MD5key;
String mac = Crypto.GetMessageDigest(mac_src);
// 把要求參數打包成map
Map<String, String> sParaTemp = new HashMap<String,String>();
sParaTemp.put("merchantid", merchantid);
sParaTemp.put("merorderid", merorderid);
sParaTemp.put("amountsum", amountsum);
sParaTemp.put("subject", subject);
sParaTemp.put("currencytype", currencytype);
sParaTemp.put("autojump", autojump);
sParaTemp.put("waittime", waittime);
sParaTemp.put("merurl", merurl);
sParaTemp.put("informmer", informmer);
sParaTemp.put("informurl", informurl);
sParaTemp.put("confirm", confirm);
sParaTemp.put("merbank", merbank);
sParaTemp.put("tradetype", tradetype);
sParaTemp.put("bankInput", bankInput);
sParaTemp.put("interface", strInterface);
sParaTemp.put("remark", remark);
sParaTemp.put("bankcardtype", bankcardtype);
sParaTemp.put("pdtdnm", pdtdnm);
sParaTemp.put("pdtdetailurl", pdtdetailurl);
sParaTemp.put("mac", mac);
//樹立要求
String sHtmlText = buildRequest(PropertiesRead.use_classLoador().getProperty("CMBC.pay.url"), sParaTemp, "post");
logger.info("McPay request: {}", sHtmlText);
return sHtmlText;
}
/" Crypto.java 代碼以下 "/
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* <p>Title: MD5加密算法</p>
* <p>Description: 商戶不須要停止修正</p>
* <p>******科技成長公司 2009. All rights reserved.</p>
*/
public class Crypto {
/**
* 功效：MD5加密
* @param strSrc 加密的源字符串
* @return 加密串 長度32位
*/
public static String GetMessageDigest(String strSrc) {
MessageDigest md = null;
String strDes = null;
final String ALGO_MD5 = "MD5";
byte[] bt = strSrc.getBytes();
try {
md = MessageDigest.getInstance(ALGO_MD5);
md.update(bt);
strDes = bytes2Hex(md.digest());
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException(
"體系不支撐的MD5算法！");
}
return strDes;
}
/**
* 將字節數組轉為HEX字符串(16進制串)
* @param bts 要轉換的字節數組
* @return 轉換後的HEX串
*/
public static String bytes2Hex(byte[] bts) {
String des = "";
String tmp = null;
for (int i = 0; i < bts.length; i++) {
tmp = (Integer.toHexString(bts[i] & 0xFF));
if (tmp.length() == 1) {
des += "0";
}
des += tmp;
}
return des;
}
}
/**
* 付出前往挪用url(前往頁面)
* @param session
* @param request
* @return
*/
@RequestMapping(value = "/allPayReturn.htm", method = RequestMethod.POST)
public ModelAndView allInPayReturnCall(HttpServletRequest request,
HttpServletResponse response, @RequestParam Map<String, Object> maps){
ModelAndView model = new ModelAndView("***/payReturn");
/**
* 代碼塊
*/
return model;
}
以上所述是小編給年夜家引見的基於Java代碼完成付出充值的通用流程的相干常識，願望對年夜家有所贊助，假如年夜家有任何疑問請給我留言，小編會實時答復年夜家的。在此也異常感激年夜家對網站的支撐！
