如何使用Spring连接到需要身份验证的MongoDB

Question

我使用下面的Spring配置来连接到mongoDB

<bean id="mongoTemplate" class="org.springframework.data.document.mongodb.MongoTemplate">
        <constructor-arg name="mongo" ref="mongo"/>
        <constructor-arg name="databaseName" value="${mongodb.dbname}"/>
    </bean>


    <bean class="com.mongodb.MongoURI" id="mongoUri">
        <constructor-arg value="${mongodb.url}"  />
    </bean>

    <bean class="com.mongodb.Mongo" id="mongo">
        <constructor-arg ref="mongoUri" />
    </bean>

哪里 mongo.url=mongodb://<user>:<password>@<host>:27017

但是我收到了一个认证错误.我的理解是MongoUI可以采用上述格式的URL.

我知道mongoTemplate可以接受userCredentials对象但是我需要首先从URL中提取它们,我不知道如何在配置中执行此操作.

任何想法如何更改我的上面的配置以支持这个假设mongo.url格式不能更改？

Answer 1

使用Spring Expression Language找到了解决方案

<bean id="mongoTemplate" class="org.springframework.data.document.mongodb.MongoTemplate">
        <constructor-arg name="mongo" ref="mongo"/>
        <constructor-arg name="databaseName" value="${mongodb.dbname}"/>
        <constructor-arg name="userCredentials" ref="mongoCredentials"/>
    </bean>

    <bean id="mongoCredentials" class="org.springframework.data.authentication.UserCredentials">
        <property name="username" value="#{mongoURI.username}" />
        <property name="password" value="#{new java.lang.String(mongoURI.password)}" />
    </bean>

    <bean class="com.mongodb.MongoURI" id="mongoURI">
        <constructor-arg value="${mongodb.url}"  />
    </bean>

    <bean class="com.mongodb.Mongo" id="mongo">
        <constructor-arg ref="mongoURI" />
    </bean>

Answer 2

如果要使用java config添加身份验证

@Configuration
@EnableMongoRepositories("path.to.your.repository")
public class MongoConfig extends AbstractMongoConfiguration
{
@Value("${mongodb.name}")
private String  dbName;

@Value("${mongodb.host}")
private String  host;

@Value("${mongodb.port}")
private Integer port;

@Value("${mongodb.username}")
private String  userName;

@Value("${mongodb.password}")
private String  password;


@Override
protected String getDatabaseName()
{
    return this.dbName;
}

@Override
public Mongo mongo() throws Exception
{
    return new MongoClient(this.host, this.port);
}

@Override
@Bean
public SimpleMongoDbFactory mongoDbFactory() throws Exception
{
    return new SimpleMongoDbFactory(mongo(), getDatabaseName());
}

@Override
@Bean
public MongoTemplate mongoTemplate() throws Exception
{
    final UserCredentials userCredentials = new UserCredentials(this.userName, this.password);

    final MongoTemplate mongoTemplate = new MongoTemplate(mongo(), getDatabaseName(), userCredentials);
    mongoTemplate.setWriteConcern(WriteConcern.SAFE);

    return mongoTemplate;
}

}

Answer 3

要更新@Lealem Admassu的java配置答案,在Mongo 3中他们更改了API,现在建议使用mongo MongoCredentials而不是UserCredentials.

这里有一个如何获取MongoClient的简单示例:http://docs.spring.io/spring-data/mongodb/docs/current/reference/html/#mongo.mongo-3.authentication

下一个代码可以模块化完成,但或多或​​少这对我有用(我需要一个MongoTemplate):

public MongoTemplate getMongoTemplate(String host, int port,
                                      String authenticationDB,
                                      String database,
                                      String user, char[] password)
        throws UnknownHostException {
    return new MongoTemplate(
            new SimpleMongoDbFactory(
                    new MongoClient(
                            new ServerAddress(host, port),
                            Collections.singletonList(
                                    MongoCredential.createCredential(
                                            user,
                                            authenticationDB,
                                            password
                                    )
                            )
                    ),
                    database
            )
    );
}