Java生成微信小程序码及小程序短链接_java生成小程序码

使用wx-java-miniapp-spring-boot-starter 生成微信小程序码及小程序短链接

1. 在pom.xml文件中引入依赖

com.github.binarywangwx-java-miniapp-spring-boot-starter4.7.0org.springframework.bootspring-boot-starter-data-redis

2. 在application.yml中配置小程序参数

spring: application: name: wx-poster data: redis: host: 192.168.1.111 port: 6379 password: 123456 database: 0wx: miniapp: configs: scm: appid: wx1234567890abcdef secret: test-567890abcdef1234567890abcdef msgDataFormat: JSON mall: appid: wxe8db97a0603abcde secret: test-35f85ebb2135bdcd9e154de12345 msgDataFormat: JSON

3. 加载配置及实例化服务类

@Data@Configuration@ConfigurationProperties(prefix = \"wx.miniapp\")public class WxMaProperties { private Map configs; @Data public static class Config { private String appid; private String secret; private String msgDataFormat; }}@Configurationpublic class WxMaConfiguration { @Autowired private WxMaProperties properties; @Autowired private StringRedisTemplate redisTemplate; @Bean public Map wxMaConfigs() { Map configMap = new HashMap(); WxRedisOps wxRedisOps = new RedisTemplateWxRedisOps(redisTemplate); properties.getConfigs().forEach((key, config) -> { WxMaRedisBetterConfigImpl maConfig = new WxMaRedisBetterConfigImpl(wxRedisOps, \"wechat\"); maConfig.setAppid(config.getAppid()); maConfig.setSecret(config.getSecret()); maConfig.setMsgDataFormat(config.getMsgDataFormat()); configMap.put(key, maConfig); }); return configMap; } @Bean public WxMaService wxMaService() { WxMaService service = new WxMaServiceImpl(); service.setMultiConfigs(wxMaConfigs()); return service; }}

4. 根据微信小程序标识及页面路径，生成小程序码

@Slf4j@Servicepublic class WxMaManagerService { @Autowired private WxMaService wxMaService; /** * 生成小程序码 */ @SneakyThrows public byte[] createWxaCode(WechatGenerateQrCodeParam param) { WxMaService service = wxMaService.switchoverTo(param.getAppKey()); try { return service.getQrcodeService().createWxaCodeUnlimitBytes(param.getScene(), param.getPage(), param.getCheckPath(), param.getEnvVersion(),  param.getWidth(), param.getAutoColor(), param.getLineColor(), param.getIsHyaline()); } catch (Exception e) { if (isTokenInvalid(e)) { // 如果token无效，刷新一次后重试 service.getWxMaConfig().expireAccessToken(); return service.getQrcodeService().createWxaCodeUnlimitBytes(param.getScene(), param.getPage(), param.getCheckPath(), param.getEnvVersion(), param.getWidth(), param.getAutoColor(), param.getLineColor(), param.getIsHyaline()); } throw new RuntimeException(\"生成小程序码失败\", e); } } /** * 生成短链接 */ @SneakyThrows public String createShortLink(WechatGenerateShortLinkParam param) { WxMaService service = wxMaService.switchoverTo(param.getAppKey()); // 短期有效 GenerateShortLinkRequest shortLinkRequest = GenerateShortLinkRequest.builder().pageUrl(param.getPageUrl()).isPermanent(false).build(); try { return service.getLinkService().generateShortLink(shortLinkRequest); } catch (Exception e) { if (isTokenInvalid(e)) { // 如果token无效，刷新一次后重试 service.getWxMaConfig().expireAccessToken(); return service.getLinkService().generateShortLink(shortLinkRequest); } throw new RuntimeException(\"生成短链接失败\", e); } } /** * 判断是否是token无效的错误 */ private boolean isTokenInvalid(Exception e) { String errorMsg = e.getMessage(); return StringUtils.containsIgnoreCase(errorMsg, \"access_token\") && (StringUtils.containsIgnoreCase(errorMsg, \"invalid\") || StringUtils.containsIgnoreCase(errorMsg, \"expired\")); }}

完整代码地址 https://gitee.com/galen.zhang/wx-poster