1.入駐螞蟻金服

• 進(jìn)入螞蟻金服開(kāi)發(fā)者平臺(tái)

  • https://open.alipay.com/platform/home.htm
    
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• 輸入身份信息

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• 輸入信息后進(jìn)入以下頁(yè)面

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• 選擇研發(fā)服務(wù)

  
  
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• 設(shè)置公鑰私鑰

  
  
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• 下載windows版密鑰工具并解壓

  
  
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• 運(yùn)行腳本

  
  
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• 生成密鑰

  
  
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• 將公鑰設(shè)置到支付寶中

  
  
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2.編寫(xiě)代碼接入支付寶

• 文檔地址

  • https://docs.open.alipay.com/54/106370/

• 導(dǎo)入支付寶支付依賴(lài)

  <dependency>
      <groupId>com.alipay.sdk</groupId>
      <artifactId>alipay-sdk-java</artifactId>
      <version>4.8.10.ALL</version>
  </dependency>
  

• 編寫(xiě)獲取AlipayClient代碼

  通過(guò)文檔發(fā)現(xiàn)創(chuàng)建AlipayClient對(duì)象需要傳入較多的參數(shù)淹辞，因此我們自己去編寫(xiě)一個(gè)獲取該對(duì)象的工廠類(lèi)，代碼如下：

  package com.briup.estore.util;
  
  import com.alipay.api.AlipayClient;
  import com.alipay.api.DefaultAlipayClient;
  
  public class AlipayConfig {
    /**
     * 服務(wù)網(wǎng)關(guān)   沙箱環(huán)境都是這個(gè)
     */
    public static String serverUrl = "https://openapi.alipaydev.com/gateway.do";
    
    /**
     * 應(yīng)用id  后期可以替換成自己的id
     */
    public static String appId = "2016080700191109";
    
    /**
     *  用戶(hù)私鑰   后期替換成自己的私鑰
     */
    public static String privateKey = "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";
    
    /**
     *  發(fā)送數(shù)據(jù)的格式 目前只能為json
     */
    public static String format = "json";
    
    /**
     *  設(shè)置字符集編碼 目前只能為utf-8
     */
    public static String charset = "utf-8";
  
    /**
     *  支付寶公鑰 后期替換成自己的支付寶公鑰
     */
    public static String publicKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmB1EJz4RcK7ivh13AmltlsynU80xwn22PhPHwsdIlFszVWQKuWxCIf8mgk/krZJ78MnBxBdsSGgdSC7h7pwd2u0mabXnUPdenTgW+1QP1YkzW9mcqEvtzmJ+0u8lvr3GW9NXKTyLUlb1/Lt4BvJhVj0CnWtp5iDZdXx4iD+gP0b9hc/VK6Qh4TUKNEGtLkHpXhqWU61DpyIdsuTmNkI6PNwEkHmLRmK71GOCbXYIFqTL9ZzWuxuSdq6E8rgu8bnx2m5kAcV/ZLZaIqsh7adaJwLn8SwgEH+yNkVBrpYAkOuW75C36tXe3DisVEPuxA5mJ95yg/ktppukpiC/xwX3NQIDAQAB";
    
    /**
     *  支付寶簽名 目前是 RSA2
     */
    public static String signType = "RSA2";
  
    /**
     *  頁(yè)面跳轉(zhuǎn)同步通知頁(yè)面路徑 需http://格式的完整路徑钧嘶，不能加?id=123這類(lèi)自定義參數(shù)湖蜕，必須外網(wǎng)可以正常訪問(wèn)
     */
    public static String return_url = "http://localhost:8081/estore/index.jsp";
    
    public static AlipayClient getAlipayClient() {
        // 獲得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.serverUrl, AlipayConfig.appId, AlipayConfig.privateKey, AlipayConfig.format, AlipayConfig.charset, AlipayConfig.publicKey, AlipayConfig.signType);
        return alipayClient;
    }
  
  }
  

• 使用servlet去進(jìn)行支付測(cè)試

  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  
        try {
            AlipayClient alipayClient =
                    AlipayConfig.getAlipayClient();
            //設(shè)置請(qǐng)求參數(shù)
            AlipayTradePagePayRequest alipayRequest = 
                    new AlipayTradePagePayRequest();
            
            AlipayTradePayModel model = 
                    new AlipayTradePayModel();
            
            // 設(shè)定訂單號(hào) 必須要寫(xiě),且訂單號(hào)不能重復(fù)第晰，目前已經(jīng)只是做測(cè)試，已經(jīng)寫(xiě)死
            model.setOutTradeNo("44156");
            
            // 設(shè)置訂單金額
            model.setTotalAmount("100.00");
            // 訂單名字
            model.setSubject("書(shū)籍訂單");
            // 訂單描述
            model.setBody(System.currentTimeMillis()+"");
            
            // 產(chǎn)品碼
            model.setProductCode("FAST_INSTANT_TRADE_PAY");
            
            // 設(shè)置參數(shù)
            alipayRequest.setBizModel(model);
            
            // 設(shè)置回調(diào)地址
            alipayRequest.setReturnUrl(AlipayConfig.return_url);
              
            String result = alipayClient.pageExecute(alipayRequest).getBody();
               
            response.setContentType("text/html;charset=utf-8");
            response.getWriter().println(result);
        } catch (Exception e) {
                e.printStackTrace();
        }
        
    }
  
  

• 訪問(wèn)該servlet結(jié)果如下

  
  
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