调用支付宝接口实现付款操作
1.如果想详细学习，去看支付宝开发文档
2.下面有进行简单的实现功能代码
首先去沙箱创建一个开发者用户：
沙箱链接
进入以后左边栏是如下界面：
点击沙箱账号，进行虚拟money的设置(先充它一个亿再说~~哈哈哈)
然后接下来进行代码的实现：
Controller
package com.douzi.mall.controller;import com.alipay.api.AlipayApiException;import com.alipay.api.AlipayClient;import com.alipay.api.DefaultAlipayClient;import com.alipay.api.request.AlipayTradePagePayRequest;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.Date;@Controllerpublic class PayControllertest {private String APP_ID="10044233";private String APP_PRIVATE_KEY="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";private String FORMAT="JSON";private String CHARSET="UTF-8";private String ALIPAY_PUBLIC_KEY="MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgCYmCq5I8qienHgZL3IoDmnHBNbLF3xhGRbE0YrJ/t+dYRyAPLfaT+Xq6grbV41e0iRn2mPb0ZbwY8XDiLjMqfTukppaeCuAMvOm5U0sUL55Jp5sQKo8EH0tVsW5/XtaIL+/EIwgkdGsmpChbg7MO/RduyOXQ0DKs24pwoRULus7yiWraCq9gNRv6XZPp3z31oHofrTQ2rh6fTo1Xl9dgXa5Le9F1S/Ia24H/JVlX6QyOqtdBBzs7UwuKCQCvB9TOPcOqwM0ZBVFtp3wr6G4riTQFn7Gj8iRVoahBbzPpojnZRdcycV92SNQ+N38gtq52s8P+JgMhAd10IOObrUlnQIDAQAB";private String SIGN_TYPE="RSA2";private String tradeno;private String cash="80";//tradeno商户订单号******cash金额@RequestMapping("/pay")public void pay(HttpServletRequest httpRequest,HttpServletResponse httpResponse) throws ServletException, IOException {Date time=new Date();long no=time.getTime();System.out.println(no);tradeno=String.valueOf(no);AlipayClient alipayClient = new DefaultAlipayClient("/gateway.do", APP_ID, APP_PRIVATE_KEY, FORMAT, CHARSET, ALIPAY_PUBLIC_KEY, SIGN_TYPE); //获得初始化的AlipayClientAlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();//创建API对应的requestalipayRequest.setReturnUrl("http://localhost:8080/item_show");alipayRequest.setNotifyUrl("/CallBack/notify_url.jsp");//在公共参数中设置回跳和通知地址alipayRequest.setBizContent("{" +" \"out_trade_no\":\""+tradeno+"\"," +" \"product_code\":\"FAST_INSTANT_TRADE_PAY\"," +" \"total_amount\":"+cash+"," +" \"subject\":\"Iphone6 16G\"," +" \"body\":\"Iphone6 16G\"," +" \"passback_params\":\"merchantBizType%3d3C%26merchantBizNo%3d010101111\"," +" \"extend_params\":{" +" \"sys_service_provider_id\":\"2088511833207846\"" +" }"+" }");//填充业务参数String form="";try {form = alipayClient.pageExecute(alipayRequest).getBody(); //调用SDK生成表单} catch (AlipayApiException e) {e.printStackTrace();}httpResponse.setContentType("text/html;charset=" + CHARSET);httpResponse.getWriter().write(form);//直接将完整的表单html输出到页面httpResponse.getWriter().flush();httpResponse.getWriter().close();}public class ServletException extends Exception {}}
Maven项目需要添加如下依赖：
<dependency><groupId>commons-logging</groupId><artifactId>commons-logging</artifactId><version>1.1.1</version></dependency><dependency><groupId>com.alipay.sdk</groupId><artifactId>alipay-sdk-java</artifactId><version>3.7.89.ALL</version></dependency>
这样就好了，先进行测试：localhost:8080/pay,进入如下界面就成功了；
