JAVA实现对阿里云DNS的解析管理

1、阿里云DNS的SDK依赖

2、第一个方法：创建SDK客户端实例

所有解析记录的操作都要通过这个客户端实例来进行，所以要首先创建这个实例，需要阿里云的AccessKey（AppId和AppSecret）


	private Client createClient() throws Exception{
	AliConfig api = APIKit.getAliConfig(); //返回阿里云的AccessKey参数
	if(api == null) throw new ErrException("未配置阿里云API参数！");
	Config config = new Config();
	config.accessKeyId = api.getAppId();
	config.accessKeySecret = api.getAppSecret();
	config.endpoint = "alidns.cn-beijing.aliyuncs.com";
	return new Client(config);
	}

3、第二个方法：返回指定的记录ID（RecordId）

在阿里云的SDK中，对解析记录进行修改和删除时，都需要传入 RecordId 这个参数，所以提前写一个获取记录ID的方法。


	private String getRecId(Client client, String DomainName, String RR){
	String recId = null;
	try {
	DescribeDomainRecordsRequest request = new DescribeDomainRecordsRequest();
	request.setDomainName(DomainName);
	request.setRRKeyWord(RR);
	DescribeDomainRecordsResponse response = client.describeDomainRecords(request);
	if(response.getBody().getTotalCount() > 0){
	List recs = response.getBody().getDomainRecords().getRecord();
	for(DescribeDomainRecordsResponseBodyDomainRecordsRecord rec: recs){
	if(rec.getRR().equalsIgnoreCase(RR)){
	recId = rec.getRecordId();
	break;
	}
	}
	}
	} catch (Exception e) {
	}
	return recId;
	}

4、第三个方法：添加或修改指定的记录

方便起见，这里我将添加和修改集成到了一个方法，相当于SaveOrUpdate。


	public void update(String DomainName, String RR, String Type, String Value){
	try {
	if(EStr.isEmpty(DomainName)) throw new RuntimeException("域名（DomainName）为空！");
	if(EStr.isEmpty(RR)) throw new RuntimeException("主机记录（RR）为空！");
	if(EStr.isEmpty(Type)) throw new RuntimeException("记录类型（Type）为空！");
	if(EStr.isEmpty(Value)) throw new RuntimeException("记录值（Value）为空！");
	Client client = createClient();
	String recId = getRecId(client, DomainName, RR);
	if(EStr.isNull(recId)){ //添加
	AddDomainRecordRequest request = new AddDomainRecordRequest();
	request.setDomainName(DomainName);
	request.setRR(RR);
	request.setType(Type);
	request.setValue(Value);
	AddDomainRecordResponse response = client.addDomainRecord(request);
	recId = response.getBody().getRecordId();
	}else{ //修改
	UpdateDomainRecordRequest request = new UpdateDomainRecordRequest();
	request.setRecordId(recId);
	request.setRR(RR);
	request.setType(Type);
	request.setValue(Value);
	UpdateDomainRecordResponse response = client.updateDomainRecord(request);
	recId = response.getBody().getRecordId();
	}
	renderJson(Result.success("recId", recId));
	} catch (Exception e) {
	renderJson(Result.fail(e.getMessage()));
	}
	}

5、第四个方法：删除指定的记录

这个很简单，根据查找到的RecordId直接删除即可。


	public void remove(String DomainName, String RR){
	try {
	if(EStr.isEmpty(DomainName)) throw new RuntimeException("域名（DomainName）为空！");
	if(EStr.isEmpty(RR)) throw new RuntimeException("主机记录（RR）为空！");
	Client client = createClient();
	String recId = getRecId(client, DomainName, RR);
	if(EStr.isNull(recId)){
	renderJson(Result.success("recId", null));
	}else{
	DeleteDomainRecordRequest request = new DeleteDomainRecordRequest();
	request.setRecordId(recId);
	DeleteDomainRecordResponse response = client.deleteDomainRecord(request);
	renderJson(Result.success("recId", response.getBody().getRecordId()));
	}
	} catch (Exception e) {
	renderJson(Result.fail(e.getMessage()));
	}
	}