微信小程序优惠券添加到微信卡包中详细的java代码
时间: 2023-03-02 15:45:58 浏览: 219
把优惠券添加到微信卡包中需要使用微信支付提供的API,而且需要申请微信支付的商户号和相关的证书,因此下面提供的Java代码只是示例代码,实际使用时需要根据具体情况进行修改。
1. 首先需要引入相关的包:
```java
import java.util.HashMap;
import java.util.Map;
import java.security.KeyStore;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.ssl.TrustStrategy;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;
```
2. 然后定义相关的参数:
```java
String apiUrl = "https://api.weixin.qq.com/card/qrcode/create?access_token=";
String accessToken = "YOUR_ACCESS_TOKEN";
String cardId = "YOUR_CARD_ID";
String code = "YOUR_COUPON_CODE";
String openId = "USER_OPENID";
String keyPath = "YOUR_KEY_PATH";
String keyPassword = "YOUR_KEY_PASSWORD";
```
其中,accessToken 是通过调用微信支付提供的获取 access_token 的 API 获取的,cardId 是要添加的优惠券的卡券 ID,code 是要添加的优惠券的 code,openId 是要添加优惠券的用户的 openid,keyPath 是商户证书的路径,keyPassword 是商户证书的密码。
3. 构造 HTTP 请求:
```java
String url = apiUrl + accessToken;
RestTemplate restTemplate = getRestTemplate(keyPath, keyPassword);
HttpHeaders headers = new HttpHeaders();
headers.add("Content-Type", "application/json");
String json = "{\"action_name\": \"QR_CARD\", \"action_info\": {\"card\": {\"card_id\": \"" + cardId + "\", \"code\": \"" + code + "\"}}}";
HttpEntity<String> request = new HttpEntity<String>(json, headers);
ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.POST, request, String.class);
if (response.getStatusCode() != HttpStatus.OK) {
// 请求失败
}
String responseBody = response.getBody();
```
其中,getRestTemplate 方法用来构造带有商户证书的 RestTemplate。
4. 解析返回结果:
```java
ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(responseBody);
if (node.has("errcode") && node.get("errcode").asInt() != 0) {
// 添加失败
}
String ticket = node.get("ticket").asText();
```
其中,使用了 Jackson 库来解析 JSON 数据。
5. 最后,将 ticket 添加到用户的卡包中:
```java
String addUrl = "https://api.weixin.qq.com/card/user/addcard?access_token=" + accessToken;
json = "{\"card_id\":\"" + cardId + "\",\"code\":\"" + code + "\",\"openid\":\"" + openId + "\",\"is_unique_code\":false,\"outer_str\":\"" +
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