java支付宝网站支付

开发者技术变现资源聚集地

https://www.baiydu.com

官方demo上请求是使用的form提交, 第一步请求支付，然后会返回一个组合好的form,并且有自动提交支付的javascript代码，由于为了撇和我们框架和布局，第一步没有用form下面来代码

    memberType   deviceCount两个参数是计算用户购买商品支付的总金额所需参数, 其他参数都是平台安全验证所需,下面有个提交界面形象的截图

  var alipayParameter="type=1&account="+localStorage.getItem("account")+"&token="+localStorage.getItem("token")+"&memberType="+memberType+"&deviceCount="+deviceCount;

                       $.ajax({
                          type: "POST",
                          async: true,
                          dataType: "json",
                          data: alipayParameter,
                          url: '<%=basePath%>/selfOnlineBuyServlet',
                          success: function (returnDate) {
                             
                              var status=returnDate.status;
                              if (status == 'success') {
                                  //将返回的from标签增加到body后提交支付
                                  const div=document.createElement('divform');
                                   div.innerHTML=returnDate.payUrl;
                                   document.body.appendChild(div);
                                  // document.forms[0].acceptCharset='GBK';//保持与支付宝默认编码格式一致，如果不一致将会出现：调试错误，请回到请求来源地，重新发起请求，错误代码 invalid-signature 错误原因: 验签出错，建议检查签名字符串或签名私钥与应用公钥是否匹配
                                   document.forms[0].submit();
                                   
                              } 
                              else {
                                  stion');
                              }
                  
                              $("#transParentLawyer").css({'display': 'none'});
                          }
                      });
                 });
               
             });

服务端代码：

package autoDrainage;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.UUID;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONArray;
import org.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import Helper.AAAAYulebaoShareSingleton;
import Helper.AlipayConfig;
import Helper.ElaseHelper;
import  Helper.MySqlHepler2;
@WebServlet("/selfOnlineBuyServlet")
public class selfOnlineBuyServlet extends HttpServlet {
     
    private static final long serialVersionUID = 1L;
    protected final String USER_AGENT = "Mozilla/5.0";
 
    
     
    public selfOnlineBuyServlet() {
        super();
        
    }

  
     
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
   
        doPost(request,response);
             
        }
     
 
 
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
           
         
            response.setContentType( "text/html");
            response.setCharacterEncoding("utf-8"); 
            request.setCharacterEncoding("utf-8"); 
            PrintWriter writer=response.getWriter();
            JSONObject shareJsonObject=new JSONObject();
          
           String token=request.getParameter("token");
           String account=request.getParameter("account");
          
           
         //请求
            String result="";
             //token验证
            int tokenCheck= ElaseHelper.checktoken(account, token,1);
           
           if(tokenCheck>0)
           {
               
 
                
                  JSONObject  singleObject=null;
              
              
              
             
               String memberType=request.getParameter("memberType");
               int deviceCount=Integer.valueOf(request.getParameter("deviceCount")).intValue() ;
               String total_amount="";
               if(deviceCount>0)//必须大于0不能为负数
               {
                   //下面一个循环计算需要支付的总额度
               for(int i=0;i<AAAAYulebaoShareSingleton.getInstance().memeberTypeAndPriceListArray.length();i++)
               {
                  singleObject=AAAAYulebaoShareSingleton.getInstance().memeberTypeAndPriceListArray.getJSONObject(i);
                   String tempType=singleObject.getString("memeberType");
                   if(memberType.equals(tempType))
                   {
                      total_amount=String.valueOf(deviceCount*singleObject.getInt("price")) ;
                      break;
                   }
                   
               }         
               
               
             
             //调用支付宝
               //获得初始化的AlipayClient
               AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
               
               //设置请求参数
               AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
               alipayRequest.setReturnUrl(AlipayConfig.return_url);
               alipayRequest.setNotifyUrl(AlipayConfig.notify_url);
                    
               //商户订单号，商户网站订单系统中唯一订单号，必填
               String out_trade_no =UUID.randomUUID().toString().replace("-", "");
               //付款金额，必填
                // total_amount;
               //订单名称，必填
               String subject ="云步引流平台点卡购买";
               //商品描述，可空
               String body = "产品使用分为,日/周/月/年卡四种类型,用户购买后可以使用平台的引流软件实现自动化引流";
              
               
               //下面是支付宝回调时验证的参数，单个购买所需参数组成一个字典，以商户订单号为key放到单例模式的字典中，回到成功直接移除,不成功的每天晚上12点自动清空一次。
            JSONObject buyMemeberObject=new JSONObject();
            buyMemeberObject.put("memberType",memberType);
            buyMemeberObject.put("deviceCount", deviceCount);
               AAAAYulebaoShareSingleton.getInstance().alipayOnlineBuyDictionary.put(out_trade_no, buyMemeberObject);       
               
               
               
               
               alipayRequest.setBizContent("{"out_trade_no":""+ out_trade_no +""," 
                    + ""total_amount":""+ total_amount +""," 
                    + ""subject":""+ subject +""," 
                    + ""body":""+ body +""," 
                    + ""product_code":"FAST_INSTANT_TRADE_PAY"}");
            
             
            
            try {
                result = alipayClient.pageExecute(alipayRequest).getBody();
            } catch (AlipayApiException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            shareJsonObject.put("payUrl", result);
             shareJsonObject.put("status", "success");
             shareJsonObject.put("Msg    ", "提交成功");
         
                 }        
                
                
         
           }
           else
           {
               shareJsonObject.put("status", "fail");//fail
                shareJsonObject.put("msg", "tokentimeout");
               }
            
           
        
             
              writer.println(shareJsonObject); 
              writer.flush();
             writer.close();
               writer=null;   shareJsonObject=null;
          
             
        
                
                
                 
          
    
}}
            
     

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