微信扫码支付功能详细教程————Java
前言 首先声明 我并非原创 原创是 http://blog.csdn.net/wangqiuyun/article/details/51241064 我只是在前辈的基础 加以解释说明 还有自己的一些思路
引用的第三方jar包 jdom-1.1.3.jar、jaxen-1.1.6.jar。（直接百度就可以找到了.）
大致流程
1.根据用户需求生成订单状态为未支付
2.用相应的参数请求微信接口 获取支付url
3.把获取的url 用工具生成二维码
4.支付回执 {1.验证签名 2.处理业务流程（例如：更改订单状态为已支付 生成相应的流水记录信息） 3.向微信发送消息 表示收到消息}
5.扫码页面最后处理 （用定时函数不停的获取该订单编号的状态 如果是已付款 弹出支付成功 跳转到相应的页面）
大致流程就是如此 下面不废话贴代码
public String weixin_pay(Integer orderId) throws Exception {
TPredepositOrder predepositOrder=predepositOrderService.getPredepositOrderInfoById(orderId);//根据订单号获取订单信息
// 账号信息
String appid = Constants.appid; // appid 开发者id 登录公众号》开发》基本配置 AppID(应用ID)后面就是
String mch_id =Constants.WEIXIN_MCH_ID; // 商业号 不知道的问你老板要
String key = Constants.WEIXIN_PAY_KEY; // key 登录微信商户号后，找到账户设置 -> 密码安全 -> API安全 -> API密钥；不会的这个有个地址点开看 http://www.2cto.com/weixin/201506/412421.html
//根据时间生成随机字符串
String currTime = PayCommonUtil.getCurrTime();
String strTime = currTime.substring(8, currTime.length());
String strRandom = PayCommonUtil.buildRandom(4) + "";
String nonce_str = strTime + strRandom;
//价格处理
Double price=predepositOrder.getPreDeposit();
int total_fee=(int) (price*100);
String order_price =total_fee+""; // 价格 注意：价格的单位是分
String body = "天天酷跑-游戏充值"; // 商品名称 格式必须是 公司名称-商品名称
String out_trade_no = orderId.toString(); // 订单号
// 获取发起电脑 ip
String ip=InetAddress.getLocalHost().toString();
ip=ip.substring(ip.lastIndexOf('/')+1,ip.length());
System.out.println("本机的IP = " +ip);
String spbill_create_ip =ip;
// 回调接口回调地址
String notify_url = Constants.NOTIFY_URL;
String trade_type = "NATIVE"; //支付类型 网页扫码支付就用这个 不解释
SortedMap<Object,Object> packageParams = new TreeMap<Object,Object>();
packageParams.put("appid", appid);
packageParams.put("body", body);
packageParams.put("mch_id", mch_id);
packageParams.put("nonce_str",nonce_str);
packageParams.put("notify_url", notify_url);
packageParams.put("out_trade_no",out_trade_no);
packageParams.put("spbill_create_ip", spbill_create_ip);
packageParams.put("total_fee", order_price);
packageParams.put("trade_type", trade_type);
String sign = PayCommonUtil.createSign("UTF-8",packageParams,key);
packageParams.put("sign",sign);
String requestXML = PayCommonUtil.getRequestXml(packageParams);
System.out.println(requestXML);
String resXml = HttpUtil.postData("https://api.mch.weixin.qq.com/pay/unifiedorder",requestXML);//这个是微信返回url的接口地址
System.out.println("返回的xml信息"+resXml);
Map map = XMLUtil.doXMLParse(resXml);
String urlCode = (String) map.get("code_url");
System.out.println("支付地址"+urlCode);
return urlCode;
}
回调地址 设置：登录微信支付后台》微信支付》开发配置 支付回调接口地址 回调地址ip必须是域名也就是固定ip不然微信访问不到无法进入回调
这个方法是返回一个支付url下面是生成一个二维码
<div style="margin-top: 10px;width:500px;height:500px;" id="output"></div>
<script type="text/javascript" src="weixin/js/jquery.qrcode-0.12.0.min.js"></script><--!引入生成二维码的js--->
<script type="text/javascript">
var url = '${urlCode}';
jQuery('#output').qrcode({render: "table",width:500,height:500,correctLevel:0,text:url});
window.setInterval("selectInfo()",10000);
function selectInfo(){
//用定时函数不停的获取该订单编号的状态 如果是已付款 弹出支付成功 跳转到相应的页面
}
</script>
生成二维码的 js
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t=r<<10;c(t)-c(n)>=0;)t^=n<<c(t)-c(n);return(r<<10|t)^u},f.getBCHTypeNumber=function(r){for(var t=r<<12;c(t)-c(i)>=0;)t^=i<<c(t)-c(i);return r<<12|t},f.getPatternPosition=function(r){return t[r-1]},f.getMaskFunction=function(r){switch(r){case o.PATTERN000:return function(r,t){return(r+t)%2==0};case o.PATTERN001:return function(r,t){return r%2==0};case o.PATTERN010:return function(r,t){return t%3==0};case o.PATTERN011:return function(r,t){return(r+t)%3==0};case o.PATTERN100:return function(r,t){return(Math.floor(r/2)+Math.floor(t/3))%2==0};case o.PATTERN101:return function(r,t){return r*t%2+r*t%3==0};case o.PATTERN110:return function(r,t){return(r*t%2+r*t%3)%2==0};case o.PATTERN111:return function(r,t){return(r*t%3+(r+t)%2)%2==0};default:throw new Error("bad maskPattern:"+r)}},f.getErrorCorrectPolynomial=function(t){for(var e=r([1],0),n=0;t>n;n+=1)e=e.multiply(r([1,a.gexp(n)],0));return e},f.getLengthInBits=function(r,t){if(t>=1&&10>t)switch(r){case e.MODE_NUMBER:return 10;case e.MODE_ALPHA_NUM:return 9;case e.MODE_8BIT_BYTE:return 8;case e.MODE_KANJI:return 8;default:throw new Error("mode:"+r)}else if(27>t)switch(r){case e.MODE_NUMBER:return 12;case e.MODE_ALPHA_NUM:return 11;case e.MODE_8BIT_BYTE:return 16;case e.MODE_KANJI:return 10;default:throw new Error("mode:"+r)}else{if(!(41>t))throw new Error("type:"+t);switch(r){case e.MODE_NUMBER:return 14;case e.MODE_ALPHA_NUM:return 13;case e.MODE_8BIT_BYTE:return 16;case e.MODE_KANJI:return 12;default:throw new Error("mode:"+r)}}},f.getLostPoint=function(r){for(var t=r.getModuleCount(),e=0,n=0;t>n;n+=1)for(var o=0;t>o;o+=1){for(var i=0,a=r.isDark(n,o),u=-1;1>=u;u+=1)if(!(0>n+u||n+u>=t))for(var f=-1;1>=f;f+=1)0>o+f||o+f>=t||(0!=u||0!=f)&&a==r.isDark(n+u,o+f)&&(i+=1);i>5&&(e+=3+i-5)}for(var n=0;t-1>n;n+=1)for(var o=0;t-1>o;o+=1){var c=0;r.isDark(n,o)&&(c+=1),r.isDark(n+1,o)&&(c+=1),r.isDark(n,o+1)&&(c+=1),r.isDark(n+1,o+1)&&(c+=1),(0==c||4==c)&&(e+=3)}for(var n=0;t>n;n+=1)for(var o=0;t-6>o;o+=1)r.isDark(n,o)&&!r.isDark(n,o+1)&&r.isDark(n,o+2)&&r.isDark(n,o+3)&&r.isDark(n,o+4)&&!r.isDark(n,o+5)&&r.isDark(n,o+6)&&(e+=40);for(var o=0;t>o;o+=1)for(var n=0;t-6>n;n+=1)r.isDark(n,o)&&!r.isDark(n+1,o)&&r.isDark(n+2,o)&&r.isDark(n+3,o)&&r.isDark(n+4,o)&&!r.isDark(n+5,o)&&r.isDark(n+6,o)&&(e+=40);for(var l=0,o=0;t>o;o+=1)for(var n=0;t>n;n+=1)r.isDark(n,o)&&(l+=1);var g=Math.abs(100*l/t/t-50)/5;return e+=10*g},f}(),a=function(){for(var r=new Array(256),t=new Array(256),e=0;8>e;e+=1)r[e]=1<<e;for(var e=8;256>e;e+=1)r[e]=r[e-4]^r[e-5]^r[e-6]^r[e-8];for(var e=0;255>e;e+=1)t[r[e]]=e;var n={};return n.glog=function(r){if(1>r)throw new Error("glog("+r+")");return t[r]},n.gexp=function(t){for(;0>t;)t+=255;for(;t>=256;)t-=255;return r[t]},n}(),u=function(){var r=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12,7,37,13],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]],t=function(r,t){var e={};return e.totalCount=r,e.dataCount=t,e},e={},o=function(t,e){switch(e){case n.L:return r[4*(t-1)+0];case n.M:return r[4*(t-1)+1];case n.Q:return r[4*(t-1)+2];case n.H:return r[4*(t-1)+3];default:return void 0}};return e.getRSBlocks=function(r,e){var n=o(r,e);if("undefined"==typeof n)throw new Error("bad rs block @ typeNumber:"+r+"/errorCorrectLevel:"+e);for(var i=n.length/3,a=new Array,u=0;i>u;u+=1)for(var f=n[3*u+0],c=n[3*u+1],l=n[3*u+2],g=0;f>g;g+=1)a.push(t(c,l));return a},e}(),f=function(){var r=new Array,t=0,e={};return e.getBuffer=function(){return r},e.getAt=function(t){var e=Math.floor(t/8);return 1==(r[e]>>>7-t%8&1)},e.put=function(r,t){for(var n=0;t>n;n+=1)e.putBit(1==(r>>>t-n-1&1))},e.getLengthInBits=function(){return t},e.putBit=function(e){var n=Math.floor(t/8);r.length<=n&&r.push(0),e&&(r[n]|=128>>>t%8),t+=1},e},c=function(r){var n=e.MODE_8BIT_BYTE,o=t.stringToBytes(r),i={};return i.getMode=function(){return n},i.getLength=function(r){return o.length},i.write=function(r){for(var t=0;t<o.length;t+=1)r.put(o[t],8)},i},l=function(){var r=new Array,t={};return t.writeByte=function(t){r.push(255&t)},t.writeShort=function(r){t.writeByte(r),t.writeByte(r>>>8)},t.writeBytes=function(r,e,n){e=e||0,n=n||r.length;for(var o=0;n>o;o+=1)t.writeByte(r[o+e])},t.writeString=function(r){for(var e=0;e<r.length;e+=1)t.writeByte(r.charCodeAt(e))},t.toByteArray=function(){return r},t.toString=function(){var t="";t+="[";for(var e=0;e<r.length;e+=1)e>0&&(t+=","),t+=r[e];return t+="]"},t},g=function(){var r=0,t=0,e=0,n="",o={},i=function(r){n+=String.fromCharCode(a(63&r))},a=function(r){if(0>r);else{if(26>r)return 65+r;if(52>r)return 97+(r-26);if(62>r)return 48+(r-52);if(62==r)return 43;if(63==r)return 47}throw new Error("n:"+r)};return o.writeByte=function(n){for(r=r<<8|255&n,t+=8,e+=1;t>=6;)i(r>>>t-6),t-=6},o.flush=function(){if(t>0&&(i(r<<6-t),r=0,t=0),e%3!=0)for(var o=3-e%3,a=0;o>a;a+=1)n+="="},o.toString=function(){return n},o},s=function(r){var t=r,e=0,n=0,o=0,i={};i.read=function(){for(;8>o;){if(e>=t.length){if(0==o)return-1;throw new Error("unexpected end of file./"+o)}var r=t.charAt(e);if(e+=1,"="==r)return o=0,-1;r.match(/^\s$/)||(n=n<<6|a(r.charCodeAt(0)),o+=6)}var i=n>>>o-8&255;return o-=8,i};var a=function(r){if(r>=65&&90>=r)return r-65;if(r>=97&&122>=r)return r-97+26;if(r>=48&&57>=r)return r-48+52;if(43==r)return 62;if(47==r)return 63;throw new Error("c:"+r)};return i},h=function(r,t){var e=r,n=t,o=new Array(r*t),i={};i.setPixel=function(r,t,n){o[t*e+r]=n},i.write=function(r){r.writeString("GIF87a"),r.writeShort(e),r.writeShort(n),r.writeByte(128),r.writeByte(0),r.writeByte(0),r.writeByte(0),r.writeByte(0),r.writeByte(0),r.writeByte(255),r.writeByte(255),r.writeByte(255),r.writeString(","),r.writeShort(0),r.writeShort(0),r.writeShort(e),r.writeShort(n),r.writeByte(0);var t=2,o=u(t);r.writeByte(t);for(var i=0;o.length-i>255;)r.writeByte(255),r.writeBytes(o,i,255),i+=255;r.writeByte(o.length-i),r.writeBytes(o,i,o.length-i),r.writeByte(0),r.writeString(";")};var a=function(r){var t=r,e=0,n=0,o={};return o.write=function(r,o){if(r>>>o!=0)throw new Error("length over");for(;e+o>=8;)t.writeByte(255&(r<<e|n)),o-=8-e,r>>>=8-e,n=0,e=0;n=r<<e|n,e+=o},o.flush=function(){e>0&&t.writeByte(n)},o},u=function(r){for(var t=1<<r,e=(1<<r)+1,n=r+1,i=f(),u=0;t>u;u+=1)i.add(String.fromCharCode(u));i.add(String.fromCharCode(t)),i.add(String.fromCharCode(e));var c=l(),g=a(c);g.write(t,n);var s=0,h=String.fromCharCode(o[s]);for(s+=1;s<o.length;){var v=String.fromCharCode(o[s]);s+=1,i.contains(h+v)?h+=v:(g.write(i.indexOf(h),n),i.size()<4095&&(i.size()==1<<n&&(n+=1),i.add(h+v)),h=v)}return g.write(i.indexOf(h),n),g.write(e,n),g.flush(),c.toByteArray()},f=function(){var r={},t=0,e={};return e.add=function(n){if(e.contains(n))throw new Error("dup key:"+n);r[n]=t,t+=1},e.size=function(){return t},e.indexOf=function(t){return r[t]},e.contains=function(t){return"undefined"!=typeof r[t]},e};return i},v=function(r,t,e,n){for(var o=h(r,t),i=0;t>i;i+=1)for(var a=0;r>a;a+=1)o.setPixel(a,i,e(a,i));var u=l();o.write(u);for(var f=g(),c=u.toByteArray(),s=0;s<c.length;s+=1)f.writeByte(c[s]);f.flush();var v="";return v+="<img",v+=' src="',v+="data:image/gif;base64,",v+=f,v+='"',v+=' width="',v+=r,v+='"',v+=' height="',v+=t,v+='"',n&&(v+=' alt="',v+=n,v+='"'),v+="/>"};return t}();return function(r){"function"==typeof define&&define.amd?define([],r):"object"==typeof exports&&(module.exports=r())}(function(){return r}),!function(r){r.stringToBytes=function(r){function t(r){for(var t=[],e=0;e<r.length;e++){var n=r.charCodeAt(e);128>n?t.push(n):2048>n?t.push(192|n>>6,128|63&n):55296>n||n>=57344?t.push(224|n>>12,128|n>>6&63,128|63&n):(e++,n=65536+((1023&n)<<10|1023&r.charCodeAt(e)),t.push(240|n>>18,128|n>>12&63,128|n>>6&63,128|63&n))}return t}return t(r)}}(r),r}()); |
生成二维码的代码有点多 不过没关系直接复制下来 就可以用了
下面是支付回执
@RequestMapping("weixin_notify")
public void weixin_notify(HttpServletRequest request,HttpServletResponse response) throws Exception{
//读取参数
InputStream inputStream ;
StringBuffer sb = new StringBuffer();
inputStream = request.getInputStream();
String s ;
BufferedReader in = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
while ((s = in.readLine()) != null){
sb.append(s);
}
in.close();
inputStream.close();
//解析xml成map
Map<String, String> m = new HashMap<String, String>();
m = XMLUtil.doXMLParse(sb.toString());
//过滤空 设置 TreeMap
SortedMap<Object,Object> packageParams = new TreeMap<Object,Object>();
Iterator it = m.keySet().iterator();
while (it.hasNext()) {
String parameter = (String) it.next();
String parameterValue = m.get(parameter);
String v = "";
if(null != parameterValue) {
v = parameterValue.trim();
}
packageParams.put(parameter, v);
}
// 账号信息
String key = Constants.WEIXIN_PAY_KEY; // key
logger.info(packageParams);
//判断签名是否正确
if(PayCommonUtil.isTenpaySign("UTF-8", packageParams,key)) {
//------------------------------
//处理业务开始
//------------------------------
String resXml = "";
if("SUCCESS".equals((String)packageParams.get("result_code"))){
// 这里是支付成功
//////////执行自己的业务逻辑////////////////
//获取订单号
String out_trade_no = (String)packageParams.get("out_trade_no");
//调用根据订单号更改订单状态的方法
//////////执行自己的业务逻辑////////////////
logger.info("支付成功");
//通知微信.异步确认成功.必写.不然会一直通知后台.八次之后就认为交易失败了.
resXml = "<xml>" + "<return_code><![CDATA[SUCCESS]]></return_code>"
+ "<return_msg><![CDATA[OK]]></return_msg>" + "</xml> ";
} else {
logger.info("支付失败,错误信息：" + packageParams.get("err_code"));
resXml = "<xml>" + "<return_code><![CDATA[FAIL]]></return_code>"
+ "<return_msg><![CDATA[报文为空]]></return_msg>" + "</xml> ";
}
//------------------------------
//处理业务完毕
//------------------------------
BufferedOutputStream out = new BufferedOutputStream( response.getOutputStream());
out.write(resXml.getBytes());
out.flush();
out.close();
} else{
logger.info("通知签名验证失败");
}
}
下面是需要的工具类HttpUtil类用来请求接口的 如果有别的也可以代替
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
//这个工具类是 根据url
public class HttpUtil {
private final static int CONNECT_TIMEOUT = 5000; // in milliseconds
private final static String DEFAULT_ENCODING = "UTF-8";
public static String postData(String urlStr, String data){
return postData(urlStr, data, null);
}
/****
* 功能描述 根据url 请求接口 返回String数据
* @param urlStr 接口地址
* @param data
* @param contentType
* @return
*/
public static String postData(String urlStr, String data, String contentType){
BufferedReader reader = null;
try {
URL url = new URL(urlStr);
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
conn.setConnectTimeout(CONNECT_TIMEOUT);
conn.setReadTimeout(CONNECT_TIMEOUT);
if(contentType != null)
conn.setRequestProperty("content-type", contentType);
OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream(), DEFAULT_ENCODING);
if(data == null)
data = "";
writer.write(data);
writer.flush();
writer.close();
reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), DEFAULT_ENCODING));
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line);
sb.append("\r\n");
}
return sb.toString();
} catch (IOException e) {
e.getMessage();
} finally {
try {
if (reader != null)
reader.close();
} catch (IOException e) {
}
}
return null;
}
}
下面是 PayCommonUtil工具类型 用来生成
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import com.ruanyun.common.utils.MD5;
import com.ruanyun.common.utils.MD5Util;
public class PayCommonUtil {
/**
* 是否签名正确,规则是:按参数名称a-z排序,遇到空值的参数不参加签名。
* @return boolean
*/
public static boolean isTenpaySign(String characterEncoding, SortedMap<Object, Object> packageParams, String API_KEY) {
StringBuffer sb = new StringBuffer();
Set es = packageParams.entrySet();
Iterator it = es.iterator();
while(it.hasNext()) {
Map.Entry entry = (Map.Entry)it.next();
String k = (String)entry.getKey();
String v = (String)entry.getValue();
if(!"sign".equals(k) && null != v && !"".equals(v)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + API_KEY);
//算出摘要
String mysign = MD5Util.MD5Encode(sb.toString(), characterEncoding).toLowerCase();
String tenpaySign = ((String)packageParams.get("sign")).toLowerCase();
//System.out.println(tenpaySign + " " + mysign);
return tenpaySign.equals(mysign);
}
/**
* @author
* @date 2016-4-22
* @Description：sign签名
* @param characterEncoding
* 编码格式
* @param parameters
* 请求参数
* @return
*/
public static String createSign(String characterEncoding, SortedMap<Object, Object> packageParams, String API_KEY) {
StringBuffer sb = new StringBuffer();
Set es = packageParams.entrySet(); //所有参与传参的参数按照accsii排序（升序）
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + API_KEY);
System.out.println("StringQ:参数排列顺序"+sb.toString());
String sign = MD5.MD5Encode(sb.toString(),characterEncoding).toUpperCase(); //sign必须是大写
return sign;
}
/**
* @author
* @date 2016-4-22
* @Description：将请求参数转换为xml格式的string
* @param parameters
* 请求参数
* @return
*/
public static String getRequestXml(SortedMap<Object, Object> parameters) {
StringBuffer sb = new StringBuffer();
sb.append("<xml>");
Set es = parameters.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if ("attach".equalsIgnoreCase(k) || "body".equalsIgnoreCase(k) || "sign".equalsIgnoreCase(k)) {
sb.append("<" + k + ">" + "<![CDATA[" + v + "]]></" + k + ">");
} else {
sb.append("<" + k + ">" + v + "</" + k + ">");
}
}
sb.append("</xml>");
return sb.toString();
}
/**
* 取出一个指定长度大小的随机正整数.
*
* @param length
* int 设定所取出随机数的长度。length小于11
* @return int 返回生成的随机数。
*/
public static int buildRandom(int length) {
int num = 1;
double random = Math.random();
if (random < 0.1) {
random = random + 0.1;
}
for (int i = 0; i < length; i++) {
num = num * 10;
}
return (int) ((random * num));
}
/**
* 获取当前时间 yyyyMMddHHmmss
*
* @return String
*/
public static String getCurrTime() {
Date now = new Date();
SimpleDateFormat outFormat = new SimpleDateFormat("yyyyMMddHHmmss");
String s = outFormat.format(now);
return s;
}
}
下面是XMLUtil类
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
public class XMLUtil {
/**
* 解析xml,返回第一级元素键值对。如果第一级元素有子节点，则此节点的值是子节点的xml数据。
* @param strxml
* @return
* @throws JDOMException
* @throws IOException
*/
public static Map doXMLParse(String strxml) throws JDOMException, IOException {
strxml = strxml.replaceFirst("encoding=\".*\"", "encoding=\"UTF-8\"");
if(null == strxml || "".equals(strxml)) {
return null;
}
Map m = new HashMap();
InputStream in = new ByteArrayInputStream(strxml.getBytes("UTF-8"));
SAXBuilder builder = new SAXBuilder();
Document doc = builder.build(in);
Element root = doc.getRootElement();
List list = root.getChildren();
Iterator it = list.iterator();
while(it.hasNext()) {
Element e = (Element) it.next();
String k = e.getName();
String v = "";
List children = e.getChildren();
if(children.isEmpty()) {
v = e.getTextNormalize();
} else {
v = XMLUtil.getChildrenText(children);
}
m.put(k, v);
}
//关闭流
in.close();
return m;
}
/**
* 获取子结点的xml
* @param children
* @return String
*/
public static String getChildrenText(List children) {
StringBuffer sb = new StringBuffer();
if(!children.isEmpty()) {
Iterator it = children.iterator();
while(it.hasNext()) {
Element e = (Element) it.next();
String name = e.getName();
String value = e.getTextNormalize();
List list = e.getChildren();
sb.append("<" + name + ">");
if(!list.isEmpty()) {
sb.append(XMLUtil.getChildrenText(list));
}
sb.append(value);
sb.append("</" + name + ">");
}
}
return sb.toString();
}
}
最后是md5 工具类
import java.security.MessageDigest; public class MD5 { private static String byteArrayToHexString(byte b[]) { StringBuffer resultSb = new StringBuffer(); for (int i = 0; i < b.length; i++) resultSb.append(byteToHexString(b[i])); return resultSb.toString(); } private static String byteToHexString(byte b) { int n = b; if (n < 0) n += 256; int d1 = n / 16; int d2 = n % 16; return hexDigits[d1] + hexDigits[d2]; } public static String MD5Encode(String origin, String charsetname) { String resultString = null; try { resultString = new String(origin); MessageDigest md = MessageDigest.getInstance("MD5"); if (charsetname == null || "".equals(charsetname)) resultString = byteArrayToHexString(md.digest(resultString .getBytes())); else resultString = byteArrayToHexString(md.digest(resultString .getBytes(charsetname))); } catch (Exception exception) { } return resultString; } private static final String hexDigits[] = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" }; }
转载自http://www.cnblogs.com/jishuzhaichen/p/6377741.html。
