有没有通过小程序code获取用户微信昵称和头像的api？

微信平台证书多久会失效，如何知道要失效了？

报错内容：=== download begin === Exception in thread "main" picocli.CommandLine$ExecutionException: Error while running command (com.elias.CertificateDownloader@18ef96): java.lang.IllegalArgumentException: Illegal base64 character 2d         at picocli.CommandLine.executeUserObject(CommandLine.java:1738)         at picocli.CommandLine.access$900(CommandLine.java:145)         at picocli.CommandLine$RunLast.handle(CommandLine.java:2101)         at picocli.CommandLine$RunLast.handle(CommandLine.java:2068)         at picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:1928)         at picocli.CommandLine.parseWithHandlers(CommandLine.java:2282)         at picocli.CommandLine.run(CommandLine.java:2740)         at picocli.CommandLine.run(CommandLine.java:2677)         at com.elias.CertificateDownloader.main(CertificateDownloader.java:129) Caused by: java.lang.IllegalArgumentException: Illegal base64 character 2d         at java.util.Base64$Decoder.decode0(Unknown Source)         at java.util.Base64$Decoder.decode(Unknown Source)         at java.util.Base64$Decoder.decode(Unknown Source)         at com.wechat.pay.contrib.apache.httpclient.util.PemUtil.loadPrivateKey(PemUtil.java:36)         at com.elias.CertificateDownloader.downloadCertificate(CertificateDownloader.java:55)         at com.elias.CertificateDownloader.run(CertificateDownloader.java:105)         at picocli.CommandLine.executeUserObject(CommandLine.java:1729)         ... 8 more