如何解决设置 bean 属性“mongoOperations”时无法解析对 bean“mongoTemplate”的引用
我正在尝试使用 MongoDB 创建一个 Spring Boot CRUD 应用程序。但我无法将其连接到 MongoDB Atlas。当我运行程序时，会显示以下异常。我正在尝试使用 Mongo Atlas 中生成的连接 URL 将我的应用程序连接到 MongDB Atlas 集群
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'employeeController': Unsatisfied dependency expressed through field 'employeeRepo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeRepo' defined in com.example.mongo.repo.EmployeeRepo defined in @EnableMongoRepositories declared on MongoRepositoriesRegistrar.EnableMongoRepositoriesConfiguration: Cannot resolve reference to bean 'mongoTemplate' while setting bean property 'mongoOperations'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mongoTemplate' defined in class path resource [org/springframework/boot/autoconfigure/data/mongo/MongoDatabaseFactoryDependentConfiguration.class]: Unsatisfied dependency expressed through method 'mongoTemplate' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mongoDatabaseFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/mongo/MongoDatabaseFactoryConfiguration.class]: Unsatisfied dependency expressed through method 'mongoDatabaseFactory' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongo' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoAutoConfiguration.class]: Bean instantiation via factory method Failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception; nested exception is java.lang.IllegalArgumentException: The connection string contains invalid user information. If the username or password contains a colon (:) or an at-sign (@) then it must be urlencoded
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessproperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.populateBean(AbstractAutowireCapablebeanfactory.java:1415) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:608) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.factory.support.DefaultListablebeanfactory.preInstantiateSingletons(DefaultListablebeanfactory.java:944) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:923) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2]
at com.example.mongo.MongoApplication.main(MongoApplication.java:11) ~[classes/:an]
我的应用类：
@SpringBootApplication
public class MongoApplication {
public static void main(String[] args) {
SpringApplication.run(MongoApplication.class,args);
}
}
控制器类：
@RestController
public class EmployeeController {
@Autowired
private EmployeeRepo employeeRepo;
@Autowired
private SequenceGeneratorService sequenceGeneratorService;
@GetMapping("/employees")
public List<Employee> getAllEmployees(){
return employeeRepo.findAll();
}
@GetMapping("/employees/{id}")
public Employee getEmployee(@PathVariable long id){
Employee employee = employeeRepo.findById(id).get();
return employee;
}
@PostMapping("/employees")
public Employee addEmployee(@RequestBody Employee employee){
employee.setId(sequenceGeneratorService.generateSequence(Employee.SEQUENCE_NAME));
return employeeRepo.save(employee);
}
}
存储库：
public interface EmployeeRepo extends MongoRepository<Employee,Long> {
}
模型类：
@Document(collation = "Employee")
public class Employee {
@Transient
public static final String SEQUENCE_NAME = "users_sequence";
@Id
private long id;
@Indexed(unique = true)
private String firstName;
private String lastName;
@Indexed(unique = true)
private String email;
public Employee() {
}
public Employee(long id,String firstName,String lastName,String email) {
this.id = id;
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
}
public Employee(String firstName,String email) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
}
/** Getters and setters **/
}
应用程序属性：
spring.data.mongodb.uri=mongodb+srv://root:Luxan@22@testcluster.4ebwy.mongodb.net/EmployeeDB?retryWrites=true&w=majority
解决方法
连接字符串包含无效的用户信息。如果用户名或密码包含冒号 (:) 或 at 符号 (@)，则必须对其进行 urlencoded
在您的 mongo 连接 uri 中，密码 'Luxan@22' 包含一个 '@' 字符，应进行 urlencoded。所以你可以像'Luxan%4022'一样写
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