SpringMVC+Mybatis二维码如何实现多平台付款

小编给大家分享一下SpringMVC+Mybatis二维码如何实现多平台付款，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

整体思路：

实现微信支付宝等支付平台合多为一的二维码支付，并且实现有效时间内支付有效，本人采用的框架是spring springmvc mybatis框架，maven管理。其实如果支付，不需要mybatis也能实现，代码和本人见解还需大神指教。

基本流程和思路：

• 用户点击支付

• 出现一次支付密码，并且带有时间限制

• 扫描二维码跳转后台

• 后台判断是微信支付还是支付宝支付

1.整体架构：

2.配置编译的文件目录

3.pom.xml

其中qrcode.qrcode、qrcode.swetake是从本地编译到maven库中，因为网络maven中没有。

 <?xml version="1.0"?> <project     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"     xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">     <modelVersion>4.0.0</modelVersion>     <parent>         <groupId>fanghuai</groupId>         <artifactId>nbt</artifactId>         <version>0.0.1-SNAPSHOT</version>     </parent>     <groupId>com.nbt.qrcoder</groupId>     <artifactId>nbt-qrcode</artifactId>     <version>0.0.1-SNAPSHOT</version>     <packaging>war</packaging>     <name>nbt-qrcode Maven Webapp</name>     <url>http://maven.apache.org</url>     <properties>         <spring.version>4.1.3.RELEASE</spring.version>         <mybatis.version>3.2.8</mybatis.version>         <mybatis.spring.version>1.2.2</mybatis.spring.version>         <mybatis.paginator.version>1.2.15</mybatis.paginator.version>         <mysql.version>5.1.32</mysql.version>         <slf4j.version>1.6.4</slf4j.version>         <jackson.version>2.4.2</jackson.version>         <druid.version>1.0.9</druid.version>         <jstl.version>1.2</jstl.version>         <servlet-api.version>2.5</servlet-api.version>         <jsp-api.version>2.0</jsp-api.version>         <commons-lang3.version>3.3.2</commons-lang3.version>         <commons-io.version>1.3.2</commons-io.version>         <commons-net.version>3.3</commons-net.version>         <pagehelper.version>4.0.0</pagehelper.version>       </properties>     <dependencies>         <dependency>             <groupId>junit</groupId>             <artifactId>junit</artifactId>             <version>3.8.1</version>             <scope>test</scope>         </dependency>         <!-- qrcode -->         <dependency>             <groupId>qrcode.qrcode</groupId>             <artifactId>qrcode</artifactId>             <version>1.0</version>         </dependency>         <dependency>             <groupId>qrcode.swetake</groupId>             <artifactId>swetake</artifactId>             <version>1.0</version>         </dependency>           <!-- 日志处理 -->         <dependency>             <groupId>org.slf4j</groupId>             <artifactId>slf4j-log4j12</artifactId>             <version>${slf4j.version}</version>         </dependency>         <!-- Mybatis -->         <dependency>             <groupId>org.mybatis</groupId>             <artifactId>mybatis</artifactId>             <version>${mybatis.version}</version>         </dependency>         <dependency>             <groupId>org.mybatis</groupId>             <artifactId>mybatis-spring</artifactId>             <version>${mybatis.spring.version}</version>         </dependency>         <dependency>             <groupId>com.github.miemiedev</groupId>             <artifactId>mybatis-paginator</artifactId>             <version>${mybatis.paginator.version}</version>         </dependency>         <dependency>             <groupId>com.github.pagehelper</groupId>             <artifactId>pagehelper</artifactId>             <version>${pagehelper.version}</version>         </dependency>         <!-- MySql -->         <dependency>             <groupId>mysql</groupId>             <artifactId>mysql-connector-java</artifactId>             <version>${mysql.version}</version>         </dependency>         <!-- 连接池 -->         <dependency>             <groupId>com.alibaba</groupId>             <artifactId>druid</artifactId>             <version>${druid.version}</version>         </dependency>         <!-- Spring -->         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context</artifactId>             <version>${spring.version}</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-beans</artifactId>             <version>${spring.version}</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-webmvc</artifactId>             <version>${spring.version}</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-jdbc</artifactId>             <version>${spring.version}</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-aspects</artifactId>             <version>${spring.version}</version>         </dependency>         <!-- JSP相关 -->         <dependency>             <groupId>jstl</groupId>             <artifactId>jstl</artifactId>             <version>${jstl.version}</version>         </dependency>         <dependency>             <groupId>javax.servlet</groupId>             <artifactId>servlet-api</artifactId>             <version>${servlet-api.version}</version>             <scope>provided</scope>         </dependency>         <dependency>             <groupId>javax.servlet</groupId>             <artifactId>jsp-api</artifactId>             <version>${jsp-api.version}</version>             <scope>provided</scope>         </dependency>     </dependencies>     <build>         <finalName>nbt-qrcode</finalName>     </build> </project>

4.二维码相关属性（Model）

 package com.nbt.util; import java.awt.image.BufferedImage; import jp.sourceforge.qrcode.data.QRCodeImage;    public   class J2SEImage implements QRCodeImage {          BufferedImage bufImg;          public J2SEImage(BufferedImage bufImg) {              this.bufImg = bufImg;          }          public int getWidth() {              return bufImg.getWidth();          }          public int getHeight() {              return bufImg.getHeight();          }          public int getPixel(int x, int y) {              return bufImg.getRGB(x, y);          }      }

5.二维码生成代码

package com.nbt.util;   import java.awt.Color; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException;   import javax.imageio.ImageIO;   import jp.sourceforge.qrcode.QRCodeDecoder; import jp.sourceforge.qrcode.exception.DecodingFailedException;   import com.swetake.util.Qrcode;   public class QRCode {        /**      * 生成二维码(QRCode)图片      * @param content  二维码内容      * @param imgPath 存放二维位置      */      public static  void encoderQRCode(BuildQRCode bc) {            try {              Qrcode qrcodeHandler = new Qrcode();              qrcodeHandler.setQrcodeErrorCorrect('M');              qrcodeHandler.setQrcodeEncodeMode('B');              qrcodeHandler.setQrcodeVersion(7);              System.out.println(bc.getContent());              byte[] contentBytes = bc.getContent().getBytes("gb2312");              BufferedImage bufImg = new BufferedImage(140, 140,                      BufferedImage.TYPE_INT_RGB);              Graphics2D gs = bufImg.createGraphics();              gs.setBackground(Color.WHITE);              gs.clearRect(0, 0, 140, 140);              // 设定图像颜色> BLACK              gs.setColor(Color.BLACK);              // 设置偏移量 不设置可能导致解析出错              int pixoff = 2;              // 输出内容> 二维码              if (contentBytes.length > 0 && contentBytes.length < 120) {                  boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);                  for (int i = 0; i < codeOut.length; i++) {                      for (int j = 0; j < codeOut.length; j++) {                          if (codeOut[j][i]) {                              gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);                          }                      }                  }              } else {                  System.err.println("QRCode content bytes length = " + contentBytes.length + " not in [ 0,120 ]. ");              }              gs.dispose();              bufImg.flush();              File imgFile = new File(bc.getImgPath());              // 生成二维码QRCode图片              ImageIO.write(bufImg, "png", imgFile);            } catch (Exception e) {                e.printStackTrace();          }      }        /**      * 解码二维码      * @param imgPath      * @return String      */      public static  String decoderQRCode(String imgPath) {          // QRCode 二维码图片的文件          File imageFile = new File(imgPath);          BufferedImage bufImg = null;          String decodedData = null;          try {              bufImg = ImageIO.read(imageFile);              QRCodeDecoder decoder = new QRCodeDecoder();              decodedData = new String(decoder.decode(new J2SEImage(bufImg)));              // try {              // System.out.println(new String(decodedData.getBytes("gb2312"),              // "gb2312"));              // } catch (Exception e) {              // // TODO: handle exception              // }          } catch (IOException e) {              System.out.println("Error: " + e.getMessage());              e.printStackTrace();          } catch (DecodingFailedException dfe) {              System.out.println("Error: " + dfe.getMessage());              dfe.printStackTrace();          }          return decodedData;      }          public static void main(String[] args) {       //生成二维码          String imgPath = "D:/test/Michael_QRCode.png";           String content = "http://www.baidu.com";           BuildQRCode bc = new BuildQRCode(imgPath,content);          encoderQRCode(bc);           System.out.println("encoder QRcode success");           //解读二维码          String decoderContent =decoderQRCode(imgPath);           System.out.println("解析结果如下：");           System.out.println(decoderContent);           System.out.println("========decoder success!!!");      }  }

6.Controller相关代码

(jsp页面要通过流的形式放在页面上，不然二维码显示不出来。)

package com.nbt.controller;   import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Map;   import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;   import org.apache.log4j.Logger; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam;   import com.mysql.jdbc.StringUtils; import com.nbt.util.BuildQRCode; import com.nbt.util.QRCode; @Controller @RequestMapping("/qr") public class QRCodeController {       private static Logger log = Logger.getLogger(QRCodeController.class);         /**      * 跳转到二维码页面      * @param request      * @return      */     @RequestMapping("/toShowQRCode.do")     public String showQRCode(HttpServletRequest request){         log.info("跳转到二维码页面...");         return "qr";         }       /**      * 通过流的形式实现在jsp上面显示二维码      * @param model      * @param request      * @param response      * @throws IOException      */     @RequestMapping("/readImage")     public void readImage(Model model, HttpServletRequest request, HttpServletResponse response) throws IOException{         BuildQRCode bc = new BuildQRCode();//调用无参构造方法         bc.initParam(bc);//对参数进行初始化         QRCode.encoderQRCode(bc);//生成二维码           String filePath =  bc.getImgPath();         File filePic = new File(filePath);         if(filePic.exists()){            FileInputStream is = new FileInputStream(filePic);            int i = is.available(); // 得到文件大小              byte data[] = new byte[i];              is.read(data); // 读数据              is.close();              response.setContentType("image/*"); // 设置返回的文件类型              OutputStream toClient = response.getOutputStream(); // 得到向客户端输出二进制数据的对象              toClient.write(data); // 输出数据              toClient.close();           }     }         /**      * 预支付接口      * @param timeout      * @param orderNo      * @return      */     @RequestMapping("/toPay.do")     public String toPay(@RequestParam("timeout") String timeout,@RequestParam("orderNo")String orderNo){         log.info("开始进行支付");         if(StringUtils.isNullOrEmpty(orderNo)||StringUtils.isNullOrEmpty(timeout)){             log.info("订单号或者时间超时为空");             return "faile";         }           Calendar ca = Calendar.getInstance();         String afterTime = new SimpleDateFormat("yyyyMMddHHmmssSS").format(ca.getTime());           if(!afterTime.equals(timeout)){             log.info(afterTime+"---->"+timeout);             log.info("二维码已失效，请重新支付");             return "faile";         }         /**          * ..... 这段可以根据二维码参数不一样，去相关支付平台进行支付，          * 具体代码可以根据支付平台的api文档进行支付操作          */         log.info("支付成功");         return "success";     } }

7.二维码相关参数初始化

(我目前二维码存放在本地，你们可以把二维码放在程序目录下)。

 package com.nbt.util;   import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date;     public class BuildQRCode {       /**      * 二维码存放地址      */     private   String imgPath ;       /**      * 二维码内容      */     private  String content ;       /**      * 无参构造方法      */     public BuildQRCode() {       }         /**      * 有参构造方法      * @param imgPath      * @param content      */     public BuildQRCode(String imgPath, String content) {         super();         this.imgPath = imgPath;         this.content = content;     }           public void initParam(BuildQRCode bqrc){       //  生成临时订单号和有效时间         Calendar ca = Calendar.getInstance();         Date date  = ca.getTime();         SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSS");         System.out.println(sdf.format(date));         String orderNo = sdf.format(date)+(int)Math.random()*1000;//生成订单号         //生成有效时间五分钟         ca.add(Calendar.MINUTE,5);         System.out.println(sdf.format(ca.getTime()));         String timeout = sdf.format(ca.getTime());       //对参数进行初始化         bqrc.setImgPath( "D:/test/Michael_QRCode.png");         bqrc.setContent( "http://localhost:8080/nbt-qrcode/qr/toPay.do?orderNo="+orderNo+"&timeout="+timeout);     }       public static void main(String[] args) {         BuildQRCode qc = new BuildQRCode();         qc.initParam(qc);//设置参数         QRCode.encoderQRCode(qc);     }           public  String getImgPath() {         return imgPath;     }       public  void setImgPath(String imgPath) {         this.imgPath = imgPath;     }       public  String getContent() {         return content;     }       public  void setContent(String content) {         this.content = content;     } }

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