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Spring Boot连接MongoDB时出现DNS解析异常求助

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云上老周
2026-8-3
问题：Spring Boot应用连接MongoDB时持续抛出DNS解析异常

异常信息

Spring Boot应用连接MongoDB时抛出核心异常：

Caused by: com.mongodb.spi.dns.DnsWithResponseCodeException: DNS name not found [response code 3]
Caused by: javax.naming.NameNotFoundException: DNS name not found [response code 3]

完整堆栈信息：

[INFO ] 2023-01-28 10:11:19 o.m.d.cluster [cluster-ClusterId{value='63d53b1769d90d388d824a76', description='null'}-srv-<domain>]: Exception while resolving SRV records
com.mongodb.MongoConfigurationException: Failed looking up SRV record for '_mongodb._tcp.<domain>'.
    at com.mongodb.internal.dns.DefaultDnsResolver.resolveHostFromSrvRecords(DefaultDnsResolver.java:92) ~[mongodb-driver-core-4.8.2.jar:?]
    at com.mongodb.internal.connection.DefaultDnsSrvRecordMonitor$DnsSrvRecordMonitorRunnable.run(DefaultDnsSrvRecordMonitor.java:80) [mongodb-driver-core-4.8.2.jar:?]
    at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: com.mongodb.spi.dns.DnsWithResponseCodeException: DNS name not found [response code 3]
    at com.mongodb.internal.dns.JndiDnsClient.getResourceRecordData(JndiDnsClient.java:52) ~[mongodb-driver-core-4.8.2.jar:?]
    at com.mongodb.internal.dns.DefaultDnsResolver.resolveHostFromSrvRecords(DefaultDnsResolver.java:74) ~[mongodb-driver-core-4.8.2.jar:?]
    ... 2 more
Caused by: javax.naming.NameNotFoundException: DNS name not found [response code 3]
    at com.sun.jndi.dns.DnsClient.checkResponseCode(DnsClient.java:661) ~[jdk.naming.dns:?]
    at com.sun.jndi.dns.DnsClient.isMatchResponse(DnsClient.java:579) ~[jdk.naming.dns:?]
    at com.sun.jndi.dns.DnsClient.doUdpQuery(DnsClient.java:427) ~[jdk.naming.dns:?]
    at com.sun.jndi.dns.DnsClient.query(DnsClient.java:212) ~[jdk.naming.dns:?]
    at com.sun.jndi.dns.Resolver.query(Resolver.java:81) ~[jdk.naming.dns:?]
    at com.sun.jndi.dns.DnsContext.c_getAttributes(DnsContext.java:434) ~[jdk.naming.dns:?]
    at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getAttributes(ComponentDirContext.java:235) ~[?:?]
Caused by: com.mongodb.spi.dns.DnsWithResponseCodeException: DNS name not found [response code 3]

    at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:141) ~[?:?]
    at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:129) ~[?:?]
    at javax.naming.directory.InitialDirContext.getAttributes(InitialDirContext.java:142) ~[?:?]
    at com.mongodb.internal.dns.JndiDnsClient.getResourceRecordData(JndiDnsClient.java:41) ~[mongodb-driver-core-4.8.2.jar:?]
    at com.mongodb.internal.dns.DefaultDnsResolver.resolveHostFromSrvRecords(DefaultDnsResolver.java:74) ~[mongodb-driver-core-4.8.2.jar:?]
    ... 2 more
[WARN ] 2023-01-28 10:11:19 o.s.d.c.CustomConversions [main]: Registering converter from class java.time.LocalDateTime to class org.joda.time.LocalDateTime as reading converter although it doesn't convert from a store-supported type; You might want to check your annotation setup at the converter implementation
[WARN ] 2023-01-28 10:11:19 o.s.d.c.CustomConversions [main]: Registering converter from class java.time.LocalDateTime to class org.joda.time.LocalDateTime as reading converter although it doesn't convert from a store-supported type; You might want to check your annotation setup at the converter implementation
Caused by: javax.naming.NameNotFoundException: DNS name not found [response code 3]

背景信息

  • 使用Gradle的bootRun任务运行Spring Boot应用
  • 已引入依赖：org.mongodb:mongodb-driver-core、org.mongodb:mongodb-driver-sync、org.mongodb:bson、org.springframework.data:spring-data-mongodb
  • 连接字符串配置在yml文件：
    mongodb+srv://<username>:<password>@<domain>/<dbname>?ssl=false&authMechanism=PLAIN&connectTimeoutMS=30000&maxIdleTimeMS=600000
  • Mongo配置类：
    @Configuration
public class MongoConfiguration {

    @Bean
    public MongoClient mongoClient(@Value("${spring.data.mongodb.uri}") String url) {
        return MongoClients.create(url);

    }

    @Bean
    public MongoTemplate mongoTemplate(MongoClient mongo,
                                       @Value("${mongo.database}") String databaseName) {
        MongoTemplate mongoTemplate =  new MongoTemplate(mongo, databaseName);
        mongoTemplate.createCollection("Collection_Name");
        return mongoTemplate;
    }
}
  • 异常现象：MongoDB Compass和IntelliJ可正常连接，队友使用相同代码也能正常访问，仅自身Spring Boot应用连接失败

已尝试的无效方案

  • Windows系统刷新DNS缓存
  • 防火墙添加30000端口的入站/出站规则
  • 移除连接URI中的srv前缀
  • 修改DNS地址的InterfaceMetric值
  • 更换两台工作笔记本，当前为第三台

调试发现

应用通过ResolverConfigurationImpl.java的loadConfig()方法中的loadDNSconfig0()本地方法加载系统DNS服务器地址，调试显示os_nameservers值为：192.168.1.1 10.2.217.17,10.2.225.17 192.168.1.1。临时将公司VPN的10段DNS移至列表顶部后，应用可正常执行Mongo CRUD操作，但该方案无法永久生效。

解决方案

方案1：强制MongoDB驱动使用指定DNS服务器

自定义DNS解析器，让MongoDB驱动优先使用能解析SRV记录的公司DNS服务器：

import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.client.MongoClients;
import com.mongodb.spi.dns.DnsResolver;
import com.mongodb.spi.dns.DnsRecord;
import com.mongodb.spi.dns.RecordType;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.naming.directory.Attributes;
import javax.naming.directory.InitialDirContext;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;

@Configuration
public class MongoConfiguration {

    @Bean
    public MongoClient mongoClient(@Value("${spring.data.mongodb.uri}") String url) {
        MongoClientSettings settings = MongoClientSettings.builder()
                .applyConnectionString(new ConnectionString(url))
                .dnsResolver(new CustomDnsResolver())
                .build();
        return MongoClients.create(settings);
    }

    @Bean
    public MongoTemplate mongoTemplate(MongoClient mongo,
                                       @Value("${mongo.database}") String databaseName) {
        MongoTemplate mongoTemplate =  new MongoTemplate(mongo, databaseName);
        mongoTemplate.createCollection("Collection_Name");
        return mongoTemplate;
    }

    static class CustomDnsResolver implements DnsResolver {
        @Override
        public List<DnsRecord> resolveRecords(String domain, RecordType recordType) {
            List<DnsRecord> records = new ArrayList<>();
            try {
                // 指定公司DNS服务器地址
                Hashtable<String, String> env = new Hashtable<>();
                env.put("java.naming.factory.initial", "com.sun.jndi.dns.DnsContextFactory");
                env.put("java.naming.provider.url", "dns://10.2.217.17,dns://10.2.225.17");
                InitialDirContext ctx = new InitialDirContext(env);
                Attributes attrs = ctx.getAttributes(domain, new String[]{recordType.name()});
                if (attrs != null && attrs.get(recordType.name()) != null) {
                    for (Object attr : attrs.get(recordType.name()).getAll()) {
                        records.add(new DnsRecord(attr.toString(), 300));
                    }
                }
                ctx.close();
            } catch (Exception e) {
                throw new RuntimeException("DNS解析失败", e);
            }
            return records;
        }
    }
}

方案2：通过JVM启动参数指定DNS服务器

在Gradle的bootRun任务中添加JVM参数，强制JVM优先使用公司DNS：

bootRun {
    jvmArgs += "-Dsun.net.spi.nameservice.provider.1=dns,sun"
    jvmArgs += "-Dsun.net.spi.nameservice.nameservers=10.2.217.17,10.2.225.17"
}

该方式无需修改代码，直接让JVM使用指定DNS解析域名。

方案3：永久调整系统DNS优先级

若修改InterfaceMetric无效，可通过以下步骤调整Windows系统DNS顺序：

  1. 打开网络连接，右键当前VPN连接，选择属性
  2. 双击Internet协议版本4 (TCP/IPv4)
  3. 选择使用下面的DNS服务器地址，输入公司10段DNS作为首选，本地DNS作为备用
  4. 点击高级，在DNS标签页中，将公司DNS移至列表顶部，删除重复的DNS条目
  5. 勾选在DNS中注册此连接的地址，保存配置

方案4：使用非SRV格式连接字符串

如果能获取MongoDB节点的具体IP和端口，可替换为标准连接字符串，绕过SRV解析：

mongodb://<username>:<password>@<node1-ip>:<port>,<node2-ip>:<port>/<dbname>?ssl=false&authMechanism=PLAIN&connectTimeoutMS=30000&maxIdleTimeMS=600000&replicaSet=<replica-set-name>

内容的提问来源于stack exchange，提问作者Ketan Deshpande

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最近更新时间：2026.08.03 17:25:19