家庭公网IP动态解析之阿里云DNS

此服务使用Java开发，每隔10分钟进行阿里云dns解析。如果解析地址未变更，则不出发修改解析操作。

代码

1. AliClient 代码 获取指定域名的解析记录和修改

/*** 阿里云客户端** @author Created by Harry Ma on -01-26*/@Componentpublic class AliClient {private static IAcsClient client;public AliClient() {IClientProfile profile = DefaultProfile.getProfile(Constants.REGION_ID, AliDnsApplication.aliConfig.getAccessKey(), AliDnsApplication.aliConfig.getAccessSecret());// 若报Can not find endpoint to access异常，请添加以下此行代码// DefaultProfile.addEndpoint("cn-hangzhou", "cn-hangzhou", "Alidns", "");client = new DefaultAcsClient(profile);}public String getFirstDomain() {DescribeDomainsRequest request = new DescribeDomainsRequest();DescribeDomainsResponse response;try {response = client.getAcsResponse(request);List<DescribeDomainsResponse.Domain> domains = response.getDomains();if (domains.size() > 0) {return domains.get(0).getDomainName();}} catch (ClientException e) {e.printStackTrace();}return "";}/*** 获取指定解析记录** @param domainName 域名* @param filterRR 获取的解析记录* @return 解析记录*/public DescribeDomainRecordsResponse.Record getRecord(String domainName, String filterRR) {DescribeDomainRecordsRequest describeDomainRecordsRequest = new DescribeDomainRecordsRequest();describeDomainRecordsRequest.setDomainName(domainName);DescribeDomainRecordsResponse describeSubDomainRecordsResponse;try {describeSubDomainRecordsResponse = client.getAcsResponse(describeDomainRecordsRequest);for (DescribeDomainRecordsResponse.Record domainRecord : describeSubDomainRecordsResponse.getDomainRecords()) {if (filterRR != null && filterRR.equals(domainRecord.getRR())) {return domainRecord;}}} catch (ClientException e) {e.printStackTrace();}return null;}public void updateRecordIp(String ip, String recordId, String rR) {UpdateDomainRecordRequest request = new UpdateDomainRecordRequest();request.setRR(rR);request.setRecordId(recordId);request.setType(Constants.TYPE);request.setValue(ip);try {HttpResponse response = client.doAction(request);if (response.isSuccess()) {System.out.println("DNS解析成功^_^");return;}if (response.getHttpContentString().contains("The DNS record already exists.")){System.err.println("当前解析记录已存在...");}System.err.println("DNS解析失败,请检查$_$");} catch (ClientException e) {System.err.println(e.getErrMsg());}}}

2. 定时任务类

/*** 定时修改阿里云动态DNS** @author Created by Harry Ma on -01-26*/@Component@EnableSchedulingpublic class DnsSchedule {@Resourceprivate AliClient aliClient;/*** 每10分钟修改一次云解析记录*/@Scheduled(fixedRate = 1000 * 60 * 10)private void dnsTasks() {String nowIp = getNowIp();if (nowIp == null || nowIp.equals("")) {System.err.println("获取当前IP为空，请检查");return;}String firstDomain = aliClient.getFirstDomain();System.out.printf("获取到的domain为: %s%n", firstDomain);DescribeDomainRecordsResponse.Record record = aliClient.getRecord(firstDomain, AliDnsApplication.aliConfig.getRr());System.out.printf("获取到指定RR(%s)为: %s%n", AliDnsApplication.aliConfig.getRr(), JSONObject.toJSONString(record));if (!nowIp.equals(record.getValue())){aliClient.updateRecordIp(nowIp, record.getRecordId(), AliDnsApplication.aliConfig.getRr());}System.out.println("当前IP与解析IP相同，无需更新...");}private String getNowIp() {HttpGet httpGet = new HttpGet(Constants.REQUEST_IP_URL);httpGet.addHeader(Constants.ACCEPT_STR, Constants.ACCEPT_VALUE);httpGet.addHeader(Constants.CONNECTION_STR, Constants.CONNECTION_VALUE);httpGet.addHeader(Constants.USER_AGENT_STR, Constants.USER_AGENT_VALUE);CloseableHttpClient client = HttpClients.createDefault();try {CloseableHttpResponse response = client.execute(httpGet);if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {String result = EntityUtils.toString(response.getEntity());return Objects.requireNonNull(JSONObject.parseObject(result)).getString(Constants.IP_STR);}} catch (IOException e) {System.err.println(e.getMessage());}return "";}}

3. 常量类

/*** @author Created by Harry Ma on -01-26*/public interface Constants {String TYPE = "A";String REGION_ID = "cn-hangzhou"; //地域ID 默认String IP_STR = "ip";String REQUEST_IP_URL = "/?format=json";String ACCEPT_STR = "Accept";String CONNECTION_STR = "Connection";String USER_AGENT_STR = "User-Agent";String ACCEPT_VALUE = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";String CONNECTION_VALUE = "Keep-Alive";String USER_AGENT_VALUE = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/0101 Firefox/29.0";String SEPARATOR_STR = ":";String COMMA = ",";String BLANK_STR = "";}

如有不依赖jdk运行需求，请自行查找解决方法

本代码已上传至gitee和github