把支付宝的SDK导入成maven库
来源地址https://doc.open.alipay.com/docs/doc.htm?treeId=54&articleId=103419&docType=1
1.SDK已经对加签验签逻辑做了封装，使用SDK可直接调用API。
2.确定接口对应的类 例如接口名：alipay.offline.material.image.upload
在SDK中对应的类为：每个单词首字母大写，并去掉分隔符（“.”），末尾加上Request（或Response）
如上接口名对应的类为：
AlipayOfflineMaterialImageUploadRequest（请求类）
AlipayOfflineMaterialImageUploadResponse（响应类）
//实例化客户端
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2");
//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.open.public.template.message.industry.modify
AlipayOpenPublicTemplateMessageIndustryModifyRequest request = new AlipayOpenPublicTemplateMessageIndustryModifyRequest();
//SDK已经封装掉了公共参数，这里只需要传入业务参数
//此次只是参数展示，未进行字符串转义，实际情况下请转义
request.setBizContent(" {" +
" \"primary_industry_name\":\"IT科技/IT软件与服务\"," +
" \"primary_industry_code\":\"10001/20102\"," +
" \"secondary_industry_code\":\"10001/20102\"," +
" \"secondary_industry_name\":\"IT科技/IT软件与服务\"" +
" }");
AlipayOpenPublicTemplateMessageIndustryModifyResponse response = alipayClient.execute(request);
//调用成功，则处理业务逻辑
if(response.isSuccess()){
//.....
}
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2");
// 实例化具体API对应的request类,类名称和接口名称对应，当前调用接口名称：alipay.offline.material.image.upload
AlipayOfflineMaterialImageUploadRequest request = new AlipayOfflineMaterialImageUploadRequest();
request.setImageName("test");
//Windows请填写绝对路径，不支持相对路径；Linux支持相对路径
FileItem item = new FileItem("C:/Downloads/ooopic_963991_7eea1f5426105f9e6069/16365_1271139700.jpg");
request.setImageType("JPG");
request.setImageContent(item);
//执行API请求
AlipayOfflineMaterialImageUploadResponse response = alipayClient.execute(request);
//调用成功，则处理业务逻辑
if(response.isSuccess()){
//获取图片访问地址
String imageUrl = response.getImageUrl();
//.....
}
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2");
//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.user.userinfo.share
AlipayUserUserinfoShareRequest request = new AlipayUserUserinfoShareRequest();
//授权类接口执行API调用时需要带上accessToken
AlipayUserUserinfoShareResponse response= alipayClient.execute(request,"accessToken");
//业务处理
//...
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2");
//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.open.public.template.message.industry.modify
AlipayOpenPublicTemplateMessageIndustryModifyRequest request = new AlipayOpenPublicTemplateMessageIndustryModifyRequest();
//SDK已经封装掉了公共参数，这里只需要传入业务参数
//此次只是参数展示，未进行字符串转义，实际情况下请转义
request.setBizContent(" { " +
" \"primary_industry_name\":\"IT科技/IT软件与服务\"," +
" \"primary_industry_code\":\"10001/20102\"," +
" \"secondary_industry_code\":\"10001/20102\"," +
" \"secondary_industry_name\":\"IT科技/IT软件与服务\"" +
" }");
//ISV代理商户调用需要传入app_auth_token
request.putOtherTextParam("app_auth_token", "201511BBaaa6464f271f49e482f2e9fe63ca5F05");
AlipayOpenPublicTemplateMessageIndustryModifyResponse response = alipayClient.execute(request);
//调用成功，则处理业务逻辑
if(response.isSuccess()){
//.....
}
主要类文件功能说明 ───────── ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ DefaultAlipayClient.java
public DefaultAlipayClient(String serverUrl, String appId, String privateKey) 功能：构造方法 输入：serverUrl 非空，请求服务器地址（调试：http://openapi.alipaydev.com/gateway.do 线上：https://openapi.alipay.com/gateway.do ） appId 非空，应用ID privateKey 非空，私钥 输出：调用客户端实例对象
public T execute(AlipayRequest request) 功能：执行请求调用（适用于不需要授权接口调用） 输入：request 接口请求对象 输出：T 请求返回对象
public T execute(AlipayRequest request, String accessToken) 功能：执行请求调用（适用于需要授权接口调用） 输入：request 接口请求对象 authToken 授权令牌 输出：T 请求返回对象
───────── 3、调用示例 ───────── ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 请参考： com.alipay.api.test.PublicTest.java
┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉
───────── 4、签名相关类 ───────── ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉
AlipaySignature.java
public static String rsaSign(Map<String, String> params, String privateKey, String charset) 功能：RSA签名 输入：params 待签名参数map privateKey 私钥 charset 签名编码格式 输出：签名结果
public static boolean rsaCheckV2(Map<String, String> params, String publicKey, String charset) 功能：RSA验签 输入：params 签名参数内容map publicKey 公钥 charset 签名编码格式 输出：验签结果
public static boolean rsaCheckContent(String content, String sign, String publicKey,String charset) 功能：RSA验签 输入：content 签名参数内容字符串 sign 签名 publicKey 公钥 charset 签名编码格式 输出：验签结果
┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>3.0.0</version>
</dependency>
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