：spring.profiles.active = DEV 并在dev配置文件中：提到所有mongo连接属性
并添加了配置java文件，如
@Configuration
@PropertySource("classpath:userIdentity_Dev.properties")
@Profile("DEV")
public class UserIdentityConfigDev
{
}
运行应用程序时，弹出探测器无法解析
收到以下的堆栈跟踪
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userIdentityService': Unsatisfied dependency expressed through field 'userIdentityBusiness'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userIdentityBusiness': Unsatisfied dependency expressed through field 'userIdentityRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userIdentityRepositoryImpl': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'mongodb.userIdentity.host' in string value "${mongodb.userIdentity.host}"
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
说$ {mongodb.userIdentity.host}属性未解析
为项目创建war和jar文件时，弹簧配置文件未解析
答案 0 :(得分：0)
这是主要课程：
`@SpringBootApplication（exclude = {DataSourceAutoConfiguration.class，MongoAutoConfiguration.class，MongoDataAutoConfiguration.class}）
@PropertySource（ “类路径：application.properties”）
public class ApplicationStart扩展了SpringBootServletInitializer {
public static void main（String [] args）
{
SpringApplication.run(ApplicationStart.class,args);
}
}`
下面是属性文件：
## MongoDB Connection Properties-----------------
mongodb.userIdentity.database = UserIdentity_CS
mongodb.userIdentity.isConnectionStringUsed = false
mongodb.userIdentity.connectionString = mongodb：// localhost：27017 /？replicaSet = surveillens
mongodb.userIdentity.host = localhost
mongodb.userIdentity.port = 27017
mongodb.userIdentity.isAuthenticationEnable = false
mongodb.userIdentity.userName = sa
mongodb.userIdentity.password = Test @ 123
mongodb.userIdentity.authDB = admin
mongodb.userIdentity.collectionName = CreditScore
userIdentity.ValidKeySet = email; phonenumber; _id
userIdentity.logsFolder = ./IdentityLogs /
userIdentity.insertBatchSize = 100
及以下是文件.java文件，其中使用了所有这些属性 ` @组态 公共抽象类MongoDbRepository {
private Class<T> clazz;
private static MongoClient mongoClient = null;
private static MongoDatabase mongoDatabase = null;
private static ObjectMapper mapper = null;
@Value("${mongodb.userIdentity.host}")
private String mongoHost;
@Value("${mongodb.userIdentity.port}")
private int mongoPortNumber;
@Value("${mongodb.userIdentity.database}")
private String mongoDatabaseName;
@Value("${mongodb.userIdentity.userName}")
private String mongoUserName;
@Value("${mongodb.userIdentity.authDB}")
private String mongoAuthDB;
@Value("${mongodb.userIdentity.password}")
private String mongoPassword;
@Value("${mongodb.userIdentity.isAuthenticationEnable}")
private boolean mongoIsAuthEnable;
@Value("${mongodb.userIdentity.isConnectionStringUsed}")
private boolean mongoIsConnectionStringUsed;
@Value("${mongodb.userIdentity.connectionString}")
private String mongoConnectionString;
public final void setClazz(Class<T> clazzToSet)
{
this.clazz = clazzToSet;
}
/**
* Instantiates a new mongo base repository.
* @throws Exception
*/
public MongoDbRepository()
{
//Trigger MongoDB Connection initialization
if(mongoClient == null)
{
prepareMongoConnection();
}
else
{
// Trigger any method to check MongoDB client is connected
mongoClient.getAddress();
}
// Trigger ObjectMapper initialization
if(mapper == null)
prepareObjectMapper();
}
/**
* Instantiates a new mongoDB connection.
* @throws Exception
*/
private void prepareMongoConnection()
{
if (mongoConnectionString != null && !mongoConnectionString.isEmpty())
{
boolean isConnectionStringUsed = mongoIsConnectionStringUsed;
if(isConnectionStringUsed)
{
MongoClientURI clientUri = new MongoClientURI(mongoConnectionString);
mongoClient = new MongoClient(clientUri);
}
else
{
if(mongoIsAuthEnable)
{
MongoCredential credential = MongoCredential.createCredential(mongoUserName, mongoAuthDB, mongoPassword.toCharArray());
mongoClient = new MongoClient( new ServerAddress(mongoHost, mongoPortNumber), Arrays.asList(credential));
}
else
mongoClient = new MongoClient(mongoHost, mongoPortNumber);
}
// Trigger any method to check MongoDB client is connected
mongoClient.getAddress();
// Get Database from mongoClient.
mongoDatabase = mongoClient.getDatabase(mongoDatabaseName);
}
}
/**
* Get an objectMapper.
*/
private void prepareObjectMapper()
{
mapper = CommonFunctions.getObjectMapper();
}
/**
* Get the MongoDB collection object from MongoDB.
*
* @param collectionName is Name of a MongoDB collection
* @return Collection object
* @throws Exception
*/
private MongoCollection<Document> getCollection(String collectionName) throws Exception
{
if(mongoClient == null)
prepareMongoConnection();
return mongoDatabase.getCollection(collectionName);
}
/* ------- Find functions ------- */
/**
* Find one documents from mongoDB collection.
*
* @param collectionName the collection name
* @param query the query document - set to empty document means no query filtering.
*
* @return entityObj the entity Object
* @throws Exception the exception
*/
public T findOne(String collectionName, Object query) throws Exception
{
if(clazz == null)
throw new NullPointerException("ST224 - Generic class is null - set the generic class before perform MongoDB operation");
MongoCollection<Document> collection = getCollection(collectionName);
Document mongoDoc = collection.find(convertToBsonDocument(query)).first();
String jsonStr = mapper.writeValueAsString(mongoDoc);
T entityObj = mapper.readValue(jsonStr, clazz);
return entityObj;
}
}`