准备工作
1.在蚂蚁金服开发平台申请成为开发者
https://openhome.alipay.com/platform/home.htm
2.进入开发者中心创建应用
3.进入应用设置相应配置
生成密钥:
https://docs.open.alipay.com/291/106097
将生成的公钥设置到应用中
4.为应用创建功能
搭建和配置开发环境
用户信息授权官方文档:https://docs.open.alipay.com/289/105656#s3
1.下载服务端SDK
https://docs.open.alipay.com/54/103419
2.参数设置
AlipayConfig.java
public class AlipayConfig {
/**
* 支付宝网关(固定)
*/
public static final String URL="https://openapi.alipay.com/gateway.do";
/**
* 授权url
*/
public static final String ALIPAY_URL = "https://openauth.alipay.com/oauth2/publicAppAuthorize.htm";
/**
* 应用id
*/
public static final String APP_ID="";
/**
* 应用私钥
*/
public static final String APP_PRIVATE_KEY="";
/**
* 参数返回格式
*/
public static final String FORMAT="json";
/**
* 编码集
*/
public static final String CHARSET="UTF-8";
/**
* 支付宝公钥
*/
public static final String ALIPAY_PUBLIC_KEY="";
/**
* 商户生成签名字符串所使用的签名算法类型
*/
public static final String SIGN_TYPE="RSA2";
}
3.开发授权功能
授权完整流程如下:
代码:
Controller:
/**
* 跳转到授权界面
*/
@RequestMapping(value = "zhifubao")
public String save(HttpServletRequest request,HttpServletResponse response) {
Map<String,String> maps = new HashMap<String ,String>();
//页面回调地址 必须与应用中的设置一样
String return_url = "http://127.0.0.1/zhifubao/imf";
//回调地址必须经encode
return_url = java.net.URLEncoder.encode(return_url);
//重定向到授权页面
return "redirect:"+AlipayConfig.ALIPAY_URL+"?app_id=" + AlipayConfig.APP_ID + "&scope=auth_user&redirect_uri=" + return_url;
}
/**
* 获取用户信息
* @param request
* @param response
*/
@RequestMapping(value = "zhifubao/imf")
public void returnImf(HttpServletRequest request, HttpServletResponse response) {
//获取支付宝GET过来反馈信息
Map<String,String> params = new HashMap<String,String>();
Map requestParams = request.getParameterMap();
for (Iterator iter = requestParams.keySet().iterator(); iter.hasNext();) {
String name = (String) iter.next();
String[] values = (String[]) requestParams.get(name);
String valueStr = "";
for (int i = 0; i < values.length; i++) {
valueStr = (i == (values.length-1)) ? valueStr + values[i]:valueStr + values[i] + ",";
}
params.put(name, valueStr);
}
String accessToken= AlipaySubmit.buildRequest(params);
if(accessToken!=null && accessToken!=""){
String imf = AlipaySubmit.get(accessToken);
System.out.println(imf);
}
}
AlipaySubmit.java
public class AlipaySubmit {
/**
* 获取AccessToken
* @param sParaTemp
* @return
*/
public static String buildRequest(Map sParaTemp){
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", AlipayConfig.APP_ID, AlipayConfig.APP_PRIVATE_KEY, "json", AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, "RSA2");
AlipaySystemOauthTokenRequest request = new AlipaySystemOauthTokenRequest();
request.setCode((String)sParaTemp.get("auth_code"));
request.setGrantType("authorization_code");
try {
AlipaySystemOauthTokenResponse oauthTokenResponse = alipayClient.execute(request);
System.out.println(oauthTokenResponse.getAccessToken());
return oauthTokenResponse.getAccessToken();
} catch (AlipayApiException e) {
//处理异常
e.printStackTrace();
}
return null;
}
/**
* 获取用户信息
* @param accessToken
* @return
*/
public static String get(String accessToken){
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", AlipayConfig.APP_ID, AlipayConfig.APP_PRIVATE_KEY, "json", AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, "RSA2");
AlipayUserInfoShareRequest request = new AlipayUserInfoShareRequest();
try {
AlipayUserInfoShareResponse userinfoShareResponse = alipayClient.execute(request, accessToken);
return userinfoShareResponse.getBody();
} catch (AlipayApiException e) {
//处理异常
e.printStackTrace();
}
return null;
}
}
注意
AlipayConfig.java中
public static final String ALIPAY_PUBLIC_KEY=”“;
设置的为支付宝公钥,并不是应用公钥,支付宝公钥在应用中获取,如下图