微信小程序支付（java后端）

来源：互联网发布：网络新词汇大全编辑：程序博客网时间：2024/06/07 21:03

第一步

进入小程序，下单，请求下单支付，调用小程序登录API来获取Openid（https://mp.weixin.qq.com/debug/w … .html#wxloginobject）,生成商户订单，这些都是在小程序端完成的业务。

小程序端代码

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// pages/pay/pay.js
var app = getApp();
Page({
data: {},
onLoad: function (options) {
// 页面初始化 options为页面跳转所带来的参数
},
/* 微信支付 */
wxpay: function () {
var that = this
//登陆获取code
wx.login({
success: function (res) {
console.log(res.code)
//获取openid
that.getOpenId(res.code)
}
});
},
getOpenId: function (code) {
var that = this;
wx.request({
url: ”https://api.weixin.qq.com/sns/jscode2session?appid=wxa142513e524e496c&secret=5d6a7d86048884e7c60f84f7aa85253c&js_code=” + code + “&grant_type=authorization_code”,
data: {},
method: ’GET’,
success: function (res) {
console.log(’返回openId’)
console.log(res.data)
that.generateOrder(res.data.openid)
},
fail: function () {
// fail
},
complete: function () {
// complete
}
})
},
/**生成商户订单 */
generateOrder: function (openid) {
var that = this
//统一支付
wx.request({
url: ’http://localhost:8070/RMS/pay_pay.action’,
method: ’GET’,
data: {
total_fee: ’5’,
body: ’支付测试’,
attach:’真假酒水’
},
success: function (res) {
console.log(res)
var pay = res.data
//发起支付
var timeStamp = pay[0].timeStamp;
console.log(”timeStamp:”+timeStamp)
var packages = pay[0].package;
console.log(”package:”+packages)
var paySign = pay[0].paySign;
console.log(”paySign:”+paySign)
var nonceStr = pay[0].nonceStr;
console.log(”nonceStr:”+nonceStr)
var param = { “timeStamp”: timeStamp, “package”: packages, “paySign”: paySign, “signType”: “MD5”, “nonceStr”: nonceStr };
that.pay(param)
},
})
},
/* 支付 */
pay: function (param) {
console.log(”支付”)
console.log(param)
wx.requestPayment({
timeStamp: param.timeStamp,
nonceStr: param.nonceStr,
package: param.package,
signType: param.signType,
paySign: param.paySign,
success: function (res) {
// success
console.log(”支付”)
console.log(res)
wx.navigateBack({
delta: 1, // 回退前 delta(默认为1) 页面
success: function (res) {
wx.showToast({
title: ’支付成功’,
icon: ’success’,
duration: 2000
})
},
fail: function () {
// fail
},
complete: function () {
// complete
}
})
},
fail: function (res) {
// fail
console.log(”支付失败”)
console.log(res)
},
complete: function () {
// complete
console.log(”pay complete”)
}
})
}
})

// pages/pay/pay.js var app = getApp(); Page({     data: {},     onLoad: function (options) {         // 页面初始化 options为页面跳转所带来的参数     },     /* 微信支付 */     wxpay: function () {         var that = this         //登陆获取code         wx.login({             success: function (res) {                 console.log(res.code)                 //获取openid                 that.getOpenId(res.code)             }         });     },     getOpenId: function (code) {         var that = this;         wx.request({             url: "https://api.weixin.qq.com/sns/jscode2session?appid=wxa142513e524e496c&secret=5d6a7d86048884e7c60f84f7aa85253c&js_code=" + code + "&grant_type=authorization_code",             data: {},             method: 'GET',             success: function (res) {                 console.log('返回openId')                 console.log(res.data)                 that.generateOrder(res.data.openid)             },             fail: function () {                 // fail             },             complete: function () {                 // complete             }         })     },     /**生成商户订单 */     generateOrder: function (openid) {         var that = this         //统一支付         wx.request({             url: 'http://localhost:8070/RMS/pay_pay.action',             method: 'GET',             data: {                 total_fee: '5',                 body: '支付测试',                 attach:'真假酒水'             },             success: function (res) {                 console.log(res)                 var pay = res.data                 //发起支付                 var timeStamp = pay[0].timeStamp;                 console.log("timeStamp:"+timeStamp)                 var packages = pay[0].package;                 console.log("package:"+packages)                 var paySign = pay[0].paySign;                 console.log("paySign:"+paySign)                 var nonceStr = pay[0].nonceStr;                  console.log("nonceStr:"+nonceStr)                 var param = { "timeStamp": timeStamp, "package": packages, "paySign": paySign, "signType": "MD5", "nonceStr": nonceStr };                 that.pay(param)             },         })     },     /* 支付   */     pay: function (param) {         console.log("支付")         console.log(param)         wx.requestPayment({             timeStamp: param.timeStamp,             nonceStr: param.nonceStr,             package: param.package,             signType: param.signType,             paySign: param.paySign,             success: function (res) {                 // success                 console.log("支付")                 console.log(res)                 wx.navigateBack({                     delta: 1, // 回退前 delta(默认为1) 页面                     success: function (res) {                         wx.showToast({                             title: '支付成功',                             icon: 'success',                             duration: 2000                         })                     },                     fail: function () {                         // fail                     },                     complete: function () {                         // complete                     }                 })             },             fail: function (res) {                 // fail                 console.log("支付失败")                 console.log(res)             },             complete: function () {                 // complete                 console.log("pay complete")             }         })     } })

第二步
调用支付统一下单API来获取prepay_id，并将小程序调起支付数据需要签名的字段appId，timeStamp，nonceStr，package再次签名（https://pay.weixin.qq.com/wiki/d … ter=7_7&index=3）

后台代码

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package cn.it.shop.action;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import cn.it.shop.util.MessageUtil;
import cn.it.shop.util.PayUtil;
import cn.it.shop.util.PaymentPo;
import cn.it.shop.util.UUIDHexGenerator;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
/**
* @author
* @version 创建时间：2017年1月21日下午4:59:03
* 小程序端请求的后台action，返回签名后的数据传到前台
*/
public class PayAction {
private String total_fee;//总金额
private String body;//商品描述
private String detail;//商品详情
private String attach;//附加数据
private String time_start;//交易起始时间
private String time_expire;//交易结束时间
private String openid;//用户标识
private JSONArray jsonArray=new JSONArray();
public String pay() throws UnsupportedEncodingException, DocumentException{
body = new String(body.getBytes(“UTF-8”),“ISO-8859-1”);
String appid = ”替换为自己的小程序ID”;//小程序ID
String mch_id = ”替换为自己的商户号”;//商户号
String nonce_str = UUIDHexGenerator.generate();//随机字符串
String today = new SimpleDateFormat(“yyyyMMddHHmmss”).format(new Date());
String code = PayUtil.createCode(8);
String out_trade_no = mch_id+today+code;//商户订单号
String spbill_create_ip = ”替换为自己的终端IP”;//终端IP
String notify_url = ”http://www.weixin.qq.com/wxpay/pay.php”;//通知地址
String trade_type = ”JSAPI”;//交易类型
String openid=”替换为用户的openid”;//用户标识
/**/
PaymentPo paymentPo = new PaymentPo();
paymentPo.setAppid(appid);
paymentPo.setMch_id(mch_id);
paymentPo.setNonce_str(nonce_str);
String newbody=new String(body.getBytes(“ISO-8859-1”),“UTF-8”);//以utf-8编码放入paymentPo，微信支付要求字符编码统一采用UTF-8字符编码
paymentPo.setBody(newbody);
paymentPo.setOut_trade_no(out_trade_no);
paymentPo.setTotal_fee(total_fee);
paymentPo.setSpbill_create_ip(spbill_create_ip);
paymentPo.setNotify_url(notify_url);
paymentPo.setTrade_type(trade_type);
paymentPo.setOpenid(openid);
// 把请求参数打包成数组
Map sParaTemp = new HashMap();
sParaTemp.put(”appid”, paymentPo.getAppid());
sParaTemp.put(”mch_id”, paymentPo.getMch_id());
sParaTemp.put(”nonce_str”, paymentPo.getNonce_str());
sParaTemp.put(”body”, paymentPo.getBody());
sParaTemp.put(”out_trade_no”, paymentPo.getOut_trade_no());
sParaTemp.put(”total_fee”,paymentPo.getTotal_fee());
sParaTemp.put(”spbill_create_ip”, paymentPo.getSpbill_create_ip());
sParaTemp.put(”notify_url”,paymentPo.getNotify_url());
sParaTemp.put(”trade_type”, paymentPo.getTrade_type());
sParaTemp.put(”openid”, paymentPo.getOpenid());
// 除去数组中的空值和签名参数
Map sPara = PayUtil.paraFilter(sParaTemp);
String prestr = PayUtil.createLinkString(sPara); // 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
String key = ”&key=替换为商户支付密钥”; // 商户支付密钥
//MD5运算生成签名
String mysign = PayUtil.sign(prestr, key, ”utf-8”).toUpperCase();
paymentPo.setSign(mysign);
//打包要发送的xml
String respXml = MessageUtil.messageToXML(paymentPo);
// 打印respXml发现，得到的xml中有“__”不对，应该替换成“_”
respXml = respXml.replace(”__”, “_”);
String url = ”https://api.mch.weixin.qq.com/pay/unifiedorder”;//统一下单API接口链接
String param = respXml;
//String result = SendRequestForUrl.sendRequest(url, param);//发起请求
String result =PayUtil.httpRequest(url, ”POST”, param);
// 将解析结果存储在HashMap中
Map map = new HashMap();
InputStream in=new ByteArrayInputStream(result.getBytes());
// 读取输入流
SAXReader reader = new SAXReader();
Document document = reader.read(in);
// 得到xml根元素
Element root = document.getRootElement();
// 得到根元素的所有子节点
@SuppressWarnings(“unchecked”)
List elementList = root.elements();
for (Element element : elementList) {
map.put(element.getName(), element.getText());
}
// 返回信息
String return_code = map.get(”return_code”);//返回状态码
String return_msg = map.get(”return_msg”);//返回信息
System.out.println(”return_msg”+return_msg);
JSONObject JsonObject=new JSONObject() ;
if(return_code==“SUCCESS”||return_code.equals(return_code)){
// 业务结果
String prepay_id = map.get(”prepay_id”);//返回的预付单信息
String nonceStr=UUIDHexGenerator.generate();
JsonObject.put(”nonceStr”, nonceStr);
JsonObject.put(”package”, “prepay_id=”+prepay_id);
Long timeStamp= System.currentTimeMillis()/1000;
JsonObject.put(”timeStamp”, timeStamp+“”);
String stringSignTemp = ”appId=”+appid+“&nonceStr=” + nonceStr + “&package=prepay_id=” + prepay_id+ “&signType=MD5&timeStamp=” + timeStamp;
//再次签名
String paySign=PayUtil.sign(stringSignTemp, ”&key=替换为自己的密钥”, “utf-8”).toUpperCase();
JsonObject.put(”paySign”, paySign);
jsonArray.add(JsonObject);
}
return “pay”;
}
public String getTotal_fee() {
return total_fee;
}
public void setTotal_fee(String total_fee) {
this.total_fee = total_fee;
}
public String getBody() {
return body;
}
public void setBody(String body) {
this.body = body;
}
public JSONArray getJsonArray() {
return jsonArray;
}
public void setJsonArray(JSONArray jsonArray) {
this.jsonArray = jsonArray;
}
public String getDetail() {
return detail;
}
public void setDetail(String detail) {
this.detail = detail;
}
public String getAttach() {
return attach;
}
public void setAttach(String attach) {
this.attach = attach;
}
public String getTime_start() {
return time_start;
}
public void setTime_start(String time_start) {
this.time_start = time_start;
}
public String getTime_expire() {
return time_expire;
}
public void setTime_expire(String time_expire) {
this.time_expire = time_expire;
}
public String getOpenid() {
return openid;
}
public void setOpenid(String openid) {
this.openid = openid;
}
}

package cn.it.shop.action; import java.io.ByteArrayInputStream; import java.io.InputStream; import java.io.UnsupportedEncodingException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import org.dom4j.Document; import org.dom4j.DocumentException; import org.dom4j.Element; import org.dom4j.io.SAXReader; import cn.it.shop.util.MessageUtil; import cn.it.shop.util.PayUtil; import cn.it.shop.util.PaymentPo; import cn.it.shop.util.UUIDHexGenerator; import net.sf.json.JSONArray; import net.sf.json.JSONObject; /** * @author * @version 创建时间：2017年1月21日 下午4:59:03 * 小程序端请求的后台action，返回签名后的数据传到前台 */ public class PayAction {     private String total_fee;//总金额     private String body;//商品描述     private String detail;//商品详情        private String attach;//附加数据     private String time_start;//交易起始时间     private String time_expire;//交易结束时间     private String openid;//用户标识     private JSONArray jsonArray=new JSONArray();     public String pay() throws UnsupportedEncodingException, DocumentException{          body = new String(body.getBytes("UTF-8"),"ISO-8859-1");          String appid = "替换为自己的小程序ID";//小程序ID         String mch_id = "替换为自己的商户号";//商户号         String nonce_str = UUIDHexGenerator.generate();//随机字符串         String today = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());         String code = PayUtil.createCode(8);         String out_trade_no = mch_id+today+code;//商户订单号         String spbill_create_ip = "替换为自己的终端IP";//终端IP         String notify_url = "http://www.weixin.qq.com/wxpay/pay.php";//通知地址         String trade_type = "JSAPI";//交易类型          String openid="替换为用户的openid";//用户标识         /**/         PaymentPo paymentPo = new PaymentPo();         paymentPo.setAppid(appid);         paymentPo.setMch_id(mch_id);         paymentPo.setNonce_str(nonce_str);         String newbody=new String(body.getBytes("ISO-8859-1"),"UTF-8");//以utf-8编码放入paymentPo，微信支付要求字符编码统一采用UTF-8字符编码         paymentPo.setBody(newbody);         paymentPo.setOut_trade_no(out_trade_no);         paymentPo.setTotal_fee(total_fee);         paymentPo.setSpbill_create_ip(spbill_create_ip);         paymentPo.setNotify_url(notify_url);         paymentPo.setTrade_type(trade_type);         paymentPo.setOpenid(openid);         // 把请求参数打包成数组         Map sParaTemp = new HashMap();         sParaTemp.put("appid", paymentPo.getAppid());         sParaTemp.put("mch_id", paymentPo.getMch_id());         sParaTemp.put("nonce_str", paymentPo.getNonce_str());         sParaTemp.put("body",  paymentPo.getBody());         sParaTemp.put("out_trade_no", paymentPo.getOut_trade_no());         sParaTemp.put("total_fee",paymentPo.getTotal_fee());         sParaTemp.put("spbill_create_ip", paymentPo.getSpbill_create_ip());         sParaTemp.put("notify_url",paymentPo.getNotify_url());         sParaTemp.put("trade_type", paymentPo.getTrade_type());         sParaTemp.put("openid", paymentPo.getOpenid());         // 除去数组中的空值和签名参数         Map sPara = PayUtil.paraFilter(sParaTemp);         String prestr = PayUtil.createLinkString(sPara); // 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串         String key = "&key=替换为商户支付密钥"; // 商户支付密钥         //MD5运算生成签名         String mysign = PayUtil.sign(prestr, key, "utf-8").toUpperCase();         paymentPo.setSign(mysign);         //打包要发送的xml         String respXml = MessageUtil.messageToXML(paymentPo);         // 打印respXml发现，得到的xml中有“__”不对，应该替换成“_”         respXml = respXml.replace("__", "_");         String url = "https://api.mch.weixin.qq.com/pay/unifiedorder";//统一下单API接口链接         String param = respXml;         //String result = SendRequestForUrl.sendRequest(url, param);//发起请求         String result =PayUtil.httpRequest(url, "POST", param);         // 将解析结果存储在HashMap中         Map map = new HashMap();          InputStream in=new ByteArrayInputStream(result.getBytes());          // 读取输入流         SAXReader reader = new SAXReader();         Document document = reader.read(in);         // 得到xml根元素         Element root = document.getRootElement();         // 得到根元素的所有子节点         @SuppressWarnings("unchecked")         List elementList = root.elements();         for (Element element : elementList) {             map.put(element.getName(), element.getText());         }         // 返回信息         String return_code = map.get("return_code");//返回状态码         String return_msg = map.get("return_msg");//返回信息         System.out.println("return_msg"+return_msg);         JSONObject JsonObject=new JSONObject() ;         if(return_code=="SUCCESS"||return_code.equals(return_code)){             // 业务结果             String prepay_id = map.get("prepay_id");//返回的预付单信息             String nonceStr=UUIDHexGenerator.generate();             JsonObject.put("nonceStr", nonceStr);             JsonObject.put("package", "prepay_id="+prepay_id);             Long timeStamp= System.currentTimeMillis()/1000;             JsonObject.put("timeStamp", timeStamp+"");             String stringSignTemp = "appId="+appid+"&nonceStr=" + nonceStr + "&package=prepay_id=" + prepay_id+ "&signType=MD5&timeStamp=" + timeStamp;             //再次签名             String paySign=PayUtil.sign(stringSignTemp, "&key=替换为自己的密钥", "utf-8").toUpperCase();             JsonObject.put("paySign", paySign);             jsonArray.add(JsonObject);         }         return "pay";     }     public String getTotal_fee() {         return total_fee;     }     public void setTotal_fee(String total_fee) {         this.total_fee = total_fee;     }     public String getBody() {         return body;     }     public void setBody(String body) {         this.body = body;     }     public JSONArray getJsonArray() {         return jsonArray;     }     public void setJsonArray(JSONArray jsonArray) {         this.jsonArray = jsonArray;     }     public String getDetail() {         return detail;     }     public void setDetail(String detail) {         this.detail = detail;     }     public String getAttach() {         return attach;     }     public void setAttach(String attach) {         this.attach = attach;     }     public String getTime_start() {         return time_start;     }     public void setTime_start(String time_start) {         this.time_start = time_start;     }     public String getTime_expire() {         return time_expire;     }     public void setTime_expire(String time_expire) {         this.time_expire = time_expire;     }     public String getOpenid() {         return openid;     }     public void setOpenid(String openid) {         this.openid = openid;     } }

后台业务逻辑涉及到的工具类及参数封装类
MessageUtil

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package cn.it.shop.util;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.core.util.QuickWriter;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.xml.PrettyPrintWriter;
import com.thoughtworks.xstream.io.xml.XppDriver;
public class MessageUtil {
public static HashMap parseXML(HttpServletRequest request) throws Exception, IOException{
HashMap map=new HashMap();
// 通过IO获得Document
SAXReader reader = new SAXReader();
Document doc = reader.read(request.getInputStream());
//得到xml的根节点
Element root=doc.getRootElement();
recursiveParseXML(root,map);
return map;
}
private static void recursiveParseXML(Element root,HashMap map){
//得到根节点的子节点列表
List elementList=root.elements();
//判断有没有子元素列表
if(elementList.size()==0){
map.put(root.getName(), root.getTextTrim());
}
else{
//遍历
for(Element e:elementList){
recursiveParseXML(e,map);
}
}
}
private static XStream xstream = new XStream(new XppDriver() {
public HierarchicalStreamWriter createWriter(Writer out) {
return new PrettyPrintWriter(out) {
// 对所有xml节点都增加CDATA标记
boolean cdata = true;
public void startNode(String name, Class clazz) {
super.startNode(name, clazz);
}
protected void writeText(QuickWriter writer, String text) {
if (cdata) {
writer.write(“ writer.write(text);
writer.write(”]]>”);
} else {
writer.write(text);
}
}
};
}
});
public static String messageToXML(PaymentPo paymentPo){
xstream.alias(”xml”,PaymentPo.class);
return xstream.toXML(paymentPo);
}
}

package cn.it.shop.util; import java.io.IOException; import java.io.Writer; import java.util.HashMap; import java.util.List; import javax.servlet.http.HttpServletRequest; import org.dom4j.Document; import org.dom4j.Element; import org.dom4j.io.SAXReader; import com.thoughtworks.xstream.XStream; import com.thoughtworks.xstream.core.util.QuickWriter; import com.thoughtworks.xstream.io.HierarchicalStreamWriter; import com.thoughtworks.xstream.io.xml.PrettyPrintWriter; import com.thoughtworks.xstream.io.xml.XppDriver; public class MessageUtil {     public static HashMap parseXML(HttpServletRequest request) throws Exception, IOException{         HashMap map=new HashMap();         // 通过IO获得Document         SAXReader reader = new SAXReader();         Document doc = reader.read(request.getInputStream());         //得到xml的根节点         Element root=doc.getRootElement();         recursiveParseXML(root,map);         return map;     }     private static void recursiveParseXML(Element root,HashMap map){         //得到根节点的子节点列表         List elementList=root.elements();         //判断有没有子元素列表         if(elementList.size()==0){             map.put(root.getName(), root.getTextTrim());         }         else{             //遍历             for(Element e:elementList){                 recursiveParseXML(e,map);             }         }     }     private static XStream xstream = new XStream(new XppDriver() {         public HierarchicalStreamWriter createWriter(Writer out) {             return new PrettyPrintWriter(out) {                 // 对所有xml节点都增加CDATA标记                 boolean cdata = true;                 public void startNode(String name, Class clazz) {                     super.startNode(name, clazz);                 }                 protected void writeText(QuickWriter writer, String text) {                     if (cdata) {                         writer.write("                        writer.write(text);                         writer.write("]]>");                     } else {                         writer.write(text);                     }                 }             };         }     });     public static String messageToXML(PaymentPo paymentPo){         xstream.alias("xml",PaymentPo.class);         return xstream.toXML(paymentPo);     } }

PaymentPo//封装支付参数实体

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package cn.it.shop.util;
/**
* @author
* @version 创建时间：2017年1月21日下午4:20:52
* 类说明
*/
public class PaymentPo {
private String appid;//小程序ID
private String mch_id;//商户号
private String device_info;//设备号
private String nonce_str;//随机字符串
private String sign;//签名
private String body;//商品描述
private String detail;//商品详情
private String attach;//附加数据
private String out_trade_no;//商户订单号
private String fee_type;//货币类型
private String spbill_create_ip;//终端IP
private String time_start;//交易起始时间
private String time_expire;//交易结束时间
private String goods_tag;//商品标记
private String total_fee;//总金额
private String notify_url;//通知地址
private String trade_type;//交易类型
private String limit_pay;//指定支付方式
private String openid;//用户标识
set/get//省略
}

package cn.it.shop.util; /** * @author * @version 创建时间：2017年1月21日 下午4:20:52 * 类说明 */ public class PaymentPo {     private String appid;//小程序ID     private String mch_id;//商户号     private String device_info;//设备号     private String nonce_str;//随机字符串     private String sign;//签名     private String body;//商品描述      private String detail;//商品详情        private String attach;//附加数据     private String out_trade_no;//商户订单号     private String fee_type;//货币类型     private String spbill_create_ip;//终端IP     private String time_start;//交易起始时间     private String time_expire;//交易结束时间     private String goods_tag;//商品标记     private String total_fee;//总金额     private String notify_url;//通知地址        private String trade_type;//交易类型        private String limit_pay;//指定支付方式     private String openid;//用户标识     set/get//省略}

PayUtil

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package cn.it.shop.util;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.codec.digest.DigestUtils;
/**
* @author
* @version 创建时间：2017年1月17日下午7:46:29 类说明
*/
public class PayUtil {
/**
* 签名字符串
* @param text需要签名的字符串
* @param key 密钥
* @param input_charset编码格式
* @return 签名结果
*/
public static String sign(String text, String key, String input_charset) {
text = text + key;
return DigestUtils.md5Hex(getContentBytes(text, input_charset));
}
/**
* 签名字符串
* @param text需要签名的字符串
* @param sign 签名结果
* @param key密钥
* @param input_charset 编码格式
* @return 签名结果
*/
public static boolean verify(String text, String sign, String key, String input_charset) {
text = text + key;
String mysign = DigestUtils.md5Hex(getContentBytes(text, input_charset));
if (mysign.equals(sign)) {
return true;
} else {
return false;
}
}
/**
* @param content
* @param charset
* @return
* @throws SignatureException
* @throws UnsupportedEncodingException
*/
public static byte[] getContentBytes(String content, String charset) {
if (charset == null || “”.equals(charset)) {
return content.getBytes();
}
try {
return content.getBytes(charset);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(“MD5签名过程中出现错误,指定的编码集不对,您目前指定的编码集是:” + charset);
}
}
/**
* 生成6位或10位随机数 param codeLength(多少位)
* @return
*/
public static String createCode(int codeLength) {
String code = ”“;
for (int i = 0; i < codeLength; i++) {
code += (int) (Math.random() * 9);
}
return code;
}
private static boolean isValidChar(char ch) {
if ((ch >= ‘0’ && ch <= ‘9’) || (ch >= ‘A’ && ch <= ‘Z’) || (ch >= ‘a’ && ch <= ‘z’))
return true;
if ((ch >= 0x4e00 && ch <= 0x7fff) || (ch >= 0x8000 && ch <= 0x952f))
return true;// 简体中文汉字编码
return false;
}
/**
* 除去数组中的空值和签名参数
* @param sArray 签名参数组
* @return 去掉空值与签名参数后的新签名参数组
*/
public static Map paraFilter(Map sArray) {
Map result = new HashMap();
if (sArray == null || sArray.size() <= 0) {
return result;
}
for (String key : sArray.keySet()) {
String value = sArray.get(key);
if (value == null || value.equals(“”) || key.equalsIgnoreCase(“sign”)
|| key.equalsIgnoreCase(”sign_type”)) {
continue;
}
result.put(key, value);
}
return result;
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“&”字符拼接成字符串
* @param params 需要排序并参与字符拼接的参数组
* @return 拼接后字符串
*/
public static String createLinkString(Map params) {
List keys = new ArrayList(params.keySet());
Collections.sort(keys);
String prestr = ”“;
for (int i = 0; i < keys.size(); i++) {
String key = keys.get(i);
String value = params.get(key);
if (i == keys.size() - 1) {// 拼接时，不包括最后一个&字符
prestr = prestr + key + ”=” + value;
} else {
prestr = prestr + key + ”=” + value + “&”;
}
}
return prestr;
}
/**
*
* @param requestUrl请求地址
* @param requestMethod请求方法
* @param outputStr参数
*/
public static String httpRequest(String requestUrl,String requestMethod,String outputStr){
// 创建SSLContext
StringBuffer buffer=null;
try{
URL url = new URL(requestUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(requestMethod);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.connect();
//往服务器端写内容
if(null !=outputStr){
OutputStream os=conn.getOutputStream();
os.write(outputStr.getBytes(”utf-8”));
os.close();
}
// 读取服务器端返回的内容
InputStream is = conn.getInputStream();
InputStreamReader isr = new InputStreamReader(is, “utf-8”);
BufferedReader br = new BufferedReader(isr);
buffer = new StringBuffer();
String line = null;
while ((line = br.readLine()) != null) {
buffer.append(line);
}
}catch(Exception e){
e.printStackTrace();
}
return buffer.toString();
}
public static String urlEncodeUTF8(String source){
String result=source;
try {
result=java.net.URLEncoder.encode(source, ”UTF-8”);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
}

package cn.it.shop.util; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.URL; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.commons.codec.digest.DigestUtils; /** * @author * @version 创建时间：2017年1月17日 下午7:46:29 类说明 */ public class PayUtil {     /**      * 签名字符串      * @param text需要签名的字符串      * @param key 密钥      * @param input_charset编码格式      * @return 签名结果      */     public static String sign(String text, String key, String input_charset) {         text = text + key;         return DigestUtils.md5Hex(getContentBytes(text, input_charset));     }     /**      * 签名字符串      *  @param text需要签名的字符串      * @param sign 签名结果      * @param key密钥      * @param input_charset 编码格式      * @return 签名结果      */     public static boolean verify(String text, String sign, String key, String input_charset) {         text = text + key;         String mysign = DigestUtils.md5Hex(getContentBytes(text, input_charset));         if (mysign.equals(sign)) {             return true;         } else {             return false;         }     }     /**      * @param content      * @param charset      * @return      * @throws SignatureException      * @throws UnsupportedEncodingException      */     public static byte[] getContentBytes(String content, String charset) {         if (charset == null || "".equals(charset)) {             return content.getBytes();         }         try {             return content.getBytes(charset);         } catch (UnsupportedEncodingException e) {             throw new RuntimeException("MD5签名过程中出现错误,指定的编码集不对,您目前指定的编码集是:" + charset);         }     }     /**      * 生成6位或10位随机数 param codeLength(多少位)      * @return      */     public static String createCode(int codeLength) {         String code = "";         for (int i = 0; i < codeLength; i++) {             code += (int) (Math.random() * 9);         }         return code;     }     private static boolean isValidChar(char ch) {         if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z'))             return true;         if ((ch >= 0x4e00 && ch <= 0x7fff) || (ch >= 0x8000 && ch <= 0x952f))             return true;// 简体中文汉字编码         return false;     }     /**      * 除去数组中的空值和签名参数      * @param sArray 签名参数组      * @return 去掉空值与签名参数后的新签名参数组      */     public static Map paraFilter(Map sArray) {         Map result = new HashMap();         if (sArray == null || sArray.size() <= 0) {             return result;         }         for (String key : sArray.keySet()) {             String value = sArray.get(key);             if (value == null || value.equals("") || key.equalsIgnoreCase("sign")                     || key.equalsIgnoreCase("sign_type")) {                 continue;             }             result.put(key, value);         }         return result;     }     /**      * 把数组所有元素排序，并按照“参数=参数值”的模式用“&”字符拼接成字符串      * @param params 需要排序并参与字符拼接的参数组      * @return 拼接后字符串      */     public static String createLinkString(Map params) {         List keys = new ArrayList(params.keySet());         Collections.sort(keys);         String prestr = "";         for (int i = 0; i < keys.size(); i++) {             String key = keys.get(i);             String value = params.get(key);             if (i == keys.size() - 1) {// 拼接时，不包括最后一个&字符                 prestr = prestr + key + "=" + value;             } else {                 prestr = prestr + key + "=" + value + "&";             }         }         return prestr;     }     /**      *      * @param requestUrl请求地址      * @param requestMethod请求方法      * @param outputStr参数      */     public static String httpRequest(String requestUrl,String requestMethod,String outputStr){         // 创建SSLContext         StringBuffer buffer=null;         try{         URL url = new URL(requestUrl);         HttpURLConnection conn = (HttpURLConnection) url.openConnection();         conn.setRequestMethod(requestMethod);         conn.setDoOutput(true);         conn.setDoInput(true);         conn.connect();         //往服务器端写内容         if(null !=outputStr){             OutputStream os=conn.getOutputStream();             os.write(outputStr.getBytes("utf-8"));             os.close();         }         // 读取服务器端返回的内容         InputStream is = conn.getInputStream();         InputStreamReader isr = new InputStreamReader(is, "utf-8");         BufferedReader br = new BufferedReader(isr);         buffer = new StringBuffer();         String line = null;         while ((line = br.readLine()) != null) {                       buffer.append(line);         }         }catch(Exception e){             e.printStackTrace();         }         return buffer.toString();         }       public static String urlEncodeUTF8(String source){         String result=source;         try {             result=java.net.URLEncoder.encode(source, "UTF-8");         } catch (UnsupportedEncodingException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }         return result;     } }

UUIDHexGenerator

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package cn.it.shop.util;
import java.net.InetAddress;
/**
* @author
* @version 创建时间：2017年1月17日下午7:45:06 类说明
*/
public class UUIDHexGenerator {
private static String sep = “”;
private static final int IP;
private static short counter = (short) 0;
private static final int JVM = (int) (System.currentTimeMillis() >>>;
private static UUIDHexGenerator uuidgen = new UUIDHexGenerator();
static {
int ipadd;
try {
ipadd = toInt(InetAddress.getLocalHost().getAddress());
} catch (Exception e) {
ipadd = 0;
}
IP = ipadd;
}
public static UUIDHexGenerator getInstance() {
return uuidgen;
}
public static int toInt(byte[] bytes) {
int result = 0;
for (int i = 0; i < 4; i++) {
result = (result << - Byte.MIN_VALUE + (int) bytes;
}
return result;
}
protected static String format(int intval) {
String formatted = Integer.toHexString(intval);
StringBuffer buf = new StringBuffer(“00000000”);
buf.replace(8 - formatted.length(), 8, formatted);
return buf.toString();
}
protected static String format(short shortval) {
String formatted = Integer.toHexString(shortval);
StringBuffer buf = new StringBuffer(“0000”);
buf.replace(4 - formatted.length(), 4, formatted);
return buf.toString();
}
protected static int getJVM() {
return JVM;
}
protected synchronized static short getCount() {
if (counter < 0) {
counter = 0;
}
return counter++;
}
protected static int getIP() {
return IP;
}
protected static short getHiTime() {
return (short) (System.currentTimeMillis() >>> 32);
}
protected static int getLoTime() {
return (int) System.currentTimeMillis();
}
public static String generate() {
return new StringBuffer(36).append(format(getIP())).append(sep).append(format(getJVM())).append(sep)
.append(format(getHiTime())).append(sep).append(format(getLoTime())).append(sep)
.append(format(getCount())).toString();
}
/**
* @param args
*/
public static void main(String[] args) {
String id=”“;
UUIDHexGenerator uuid = UUIDHexGenerator.getInstance();
/*
for (int i = 0; i < 100; i++) {
id = uuid.generate();
}*/
id = uuid.generate();
System.out.println(id);
}
}

package cn.it.shop.util; import java.net.InetAddress; /** * @author * @version 创建时间：2017年1月17日 下午7:45:06 类说明 */ public class UUIDHexGenerator {     private static String sep = "";     private static final int IP;     private static short counter = (short) 0;     private static final int JVM = (int) (System.currentTimeMillis() >>>;     private static UUIDHexGenerator uuidgen = new UUIDHexGenerator();     static {         int ipadd;         try {             ipadd = toInt(InetAddress.getLocalHost().getAddress());         } catch (Exception e) {             ipadd = 0;         }         IP = ipadd;     }     public static UUIDHexGenerator getInstance() {         return uuidgen;     }     public static int toInt(byte[] bytes) {         int result = 0;         for (int i = 0; i < 4; i++) {             result = (result << - Byte.MIN_VALUE + (int) bytes;         }         return result;     }     protected static String format(int intval) {         String formatted = Integer.toHexString(intval);         StringBuffer buf = new StringBuffer("00000000");         buf.replace(8 - formatted.length(), 8, formatted);         return buf.toString();     }     protected static String format(short shortval) {         String formatted = Integer.toHexString(shortval);         StringBuffer buf = new StringBuffer("0000");         buf.replace(4 - formatted.length(), 4, formatted);         return buf.toString();     }     protected static int getJVM() {         return JVM;     }     protected synchronized static short getCount() {         if (counter < 0) {             counter = 0;         }         return counter++;     }     protected static int getIP() {         return IP;     }     protected static short getHiTime() {         return (short) (System.currentTimeMillis() >>> 32);     }     protected static int getLoTime() {         return (int) System.currentTimeMillis();     }     public static String generate() {         return new StringBuffer(36).append(format(getIP())).append(sep).append(format(getJVM())).append(sep)                 .append(format(getHiTime())).append(sep).append(format(getLoTime())).append(sep)                 .append(format(getCount())).toString();     }     /**      * @param args      */     public static void main(String[] args) {         String id="";         UUIDHexGenerator uuid = UUIDHexGenerator.getInstance();         /*         for (int i = 0; i < 100; i++) {             id = uuid.generate();         }*/         id = uuid.generate();         System.out.println(id);     } }

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