Parameter 0 of constructor in required a bean of type 'java.lang.String' that could not be found

Question

I am working on spring batch with spring boot 2.X application, actually its existing code i am checked out from git. While running the application it fails due to below error only for me and same code is working for others.

s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'inputItemReader' defined in file [C:\Users\XYZ\git\main\batch\CBatchProcessing\target\classes\com\main\batchprocessing\batch\reader\InputItemReader.class]: Unsatisfied dependency expressed through **constructor parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'java.lang.String' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations**: {}


Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-10-16 23:23:37.411 ERROR 2384 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

**Parameter 0 of constructor in com.main.batchprocessing.batch.reader.InputItemReader required a bean of type 'java.lang.String' that could not be found.**


Action:

Consider defining a bean of type 'java.lang.String' in your configuration.

I have checked below

1. All Spring components are correctly annotated with @Component, @Service, @Controller,@Repository, etc...
2. @ComponentScan & @EnableAutoCOnfiguration is also provided.
3. Tried giving "java.lang.String" in declarations.

Code:

    import java.util.Map;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.batch.core.ExitStatus;
    import org.springframework.batch.core.StepExecution;
    import org.springframework.batch.core.StepExecutionListener;
    import org.springframework.batch.item.file.FlatFileItemReader;
    import org.springframework.batch.item.file.mapping.JsonLineMapper;
    import 
    org.springframework.batch.item.file.separator.JsonRecordSeparatorPolicy;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Bean;
    import org.springframework.core.io.FileSystemResource;
    import org.springframework.stereotype.Component;

    @Component
    public class InputItemReader extends  FlatFileItemReader<Map<String, 
     Object>> implements StepExecutionListener {

    @Autowired
    private InputFileHeaderValidator inputFileHeaderValidator; 

    @Autowired
    private FileAuditService fileAuditService;

    private final Logger log = 
    LoggerFactory.getLogger(InputItemReader.class);

    private java.lang.String inputFilePath;

    public InputItemReader(String inputFilePath) {
        setLineMapper(new JsonLineMapper());
        setRecordSeparatorPolicy(new JsonRecordSeparatorPolicy());
        setResource(new FileSystemResource(inputFilePath));
        this.inputFilePath = inputFilePath;
    }
   }

Royo

can you add the code for InputItemReader ? – Gallardo

This may help: #51064714 – Maddy

there are some articles with similar error messages: #44058710 – Threephase

With Lombok we can use @NoArgsConstructor annotation. – Kempis

This might be so funny, but make sure your "spring stereotypes" imports are spring imports and not from other packages! Happy coding.. – Gradey

In my case, the problem was the package structure. The ComponentScan did not find the other class. – Vulture

I had this issue and sorted it out by adding @NoArgsConstructor ( I'm using lombok). Without lombok, please create a constructor with no params aka a default constructor: RouteService(){} – Arietta

Answer 1

Since you do not provide the public default constructor and you added your own non-default constructor the instantiation will fail. I would suggest you to define the input file path as property like @Value("${inputFilePath}"). If you need further initialization in your bean define a void method and annotate it with @PostConstruct and do the initialization within.

Chicane

Yeah, this is the answer .. In application.properties the inputFilePath variable was missing.. @v_schoener thanks .. – Royo

By the way from Spring Boot 2.2.x immutable configuration will be supported, and hence support for constructor injection of the properties. github.com/spring-projects/spring-boot/commit/…, github.com/spring-projects/spring-boot/wiki/…, github.com/spring-projects/spring-boot/wiki/… – Sandrasandro

Thanks you, just solve the issue by providing a default constructor. – Hibbert

Answer 2

Add a public default constructor in your class. For example.

public User() {
}

Kempis

Thank you for sharing it. This helped me solve the issue in my project. I am a bit confused. Many of my service classes do not have a public constructor even then I am able to create bean with the custom constructor. But I started getting an issue with one service class where it got solved by providing a default constructor. I am creating bean from config class where parameters value is fetched from properties file. – Palpate

If you're using Lombok you can add annotation(@NoArgsConstructor) on top of the class . – Kempis

Answer 3

Make sure you are using spring-boot-starter-data-jpa

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

Brokaw

Its always good to provide as much context as possible. For example here you are not specifying a version in the maven dependency. You could expand on the spring-boot bom for example and state a version could be required if the boms is not used. This is just an example. Its always good to try and provide at leat some context if possible. See here stackoverflow.com/help/how-to-answer specifically under the subheading "Answer the question" – Schnozzle

Answer 4

For me, it was because of using @AllArgsConstructor annotation of the lombok. My code was like this:

@Service
@AllArgsConstructor
public class SampleService {

    @Value("${search.page.size}")
    private Integer pageSize;

    private final SampleRepository sampleRepository;

And then, I removed @AllArgsConstructor and added @RequiredArgsConstructor annotation. The problem was solved.

@Service
@RequiredArgsConstructor
public class SampleService {

    @Value("${search.page.size}")
    private Integer pageSize;

    private final BatchRepository batchRepository;

Detwiler

This is just an alternative approach. Instead of removing the (@AllArgsConstructor), you could also add (@NoArgsConstructor) to solve the issue – Cosmetician

Answer 5

You defined something like this:

@Component
public class InputItemReader{

   public InputItemReader(String input){
     ...
   }
}

The name of your class suggest that your object is not a bean, just a simple object. You should try to use it in classic way:

new InputItemReader(myString);

or to have a static method to process the input String.

Explanation: Spring IoC container will try to instantiate a new InputItemReader object like this :

new InputItemReader( -- WHAT TO PUT HERE? --) 

and will fail to call your constructor, because it will not know what you do actually expect and input string.

UPDATE: Your problem can be solved by removing @Component annotation and defining the bean in a configuration like this:

@Bean
public InputItemReader inputItemReader(InputFileHeaderValidator inputFileHeaderValidator, FileAuditService fileAuditService){
    InputItemReader inputItemReader = new InputItemReader("--HERE SHOULD BE ACTUAL PATH---");
    // set the required service, a cleaner approach would be to send them via constructor
    inputItemReader.setFilteAuditService(fileAuditService);
    inputItemReader.setInputFileHeaderValidator(inputFileHeaderValidator);
    return inputItemReader;
}

Martine

I understood your point, but the same code is working for someone else not working for me.. i really did not understand why is it so ? I have added code also could you please check it once – Royo

How should you receive inputFilePath? You know this value before runtime? – Martine

Answer 6

I was also having the same problem, for me following solution worked perfectly fine:

I had annotated my class as @AllArgsConstructor by importing import lombok.AllArgsConstructor

I had just removed this annotation and the code starts working.

Goldoni

Answer 7

I had the same error but the error was generated by Feign Client. If you have this error using feign client you must add @EnableFeignClients on your main class:

@SpringCloudApplication
@EnableFeignClients
public class Application {
...
}

Zoroastrianism

Answer 8

Even after following the above solutions, if the problem still exists then please check your import statements.

In my case it was the wrong import of @service annotation.

Canescent

Answer 9

I also had the same error:

***************************
APPLICATION FAILED TO START
***************************

Description:

Field repository in com.example.controller.CampaignController required a bean of type 'com.example.data.CustomerRepository' that could not be found.


Action:

Consider defining a bean of type 'com.example.data.CustomerRepository' in your configuration.de here

I solved this issue by adding @EnableMongoRepositories annotation in the main class:

@SpringBootApplication
@EnableMongoRepositories(basePackageClasses = CustomerRepository.class)
public class CampaignAPI {

    public static void main(String[] args) {
        SpringApplication.run(CampaignAPI.class, args);
    }
}

Orthopedic

good catch! this solved my issue. However, is it better to add all the repositories, like so? basePackageClasses = Foo1Repository.class, Foo2Repository.class... ? – Ledeen

Answer 10

In my case I missed the @Service annotation so once I placed it works.

Blameful

Answer 11

The issue in my case was a redundant @Autowired, I initially added a dependency using @Autowired, by eventually commenting it out, however, I forgot to comment on the annotation, due to which the method next to @Autowired was considered as some sort of setter.

On removing the redundant annotation it is working fine.

Hairbreadth

Answer 12

Using @Component worked for me

Moonfaced

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center. – Buffington

Answer 13

In my case, the issue was way different.

@SpringBootApplication
@EnableNeo4jRepositories("com.digital.api.repositories") // <-- This was non-existent.
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Look at the @EnableNeo4jRepositories annotation. The package defined, was non-existent. Try defining that package, and be careful that the Repository interfaces are based there. Otherwise, Spring will not find the repositories classes that it should load up!

Conway

Answer 14

I was facing the same issue and it got fixed by removing Constructors from my Model class. Adding sample snippet below:

Map<String, ServiceDefinition> serviceDefinitionMapper = new HashMap<>();
    A def;
    B serviceCharacter;

    @Autowired
    public Scan(Map<String, ServiceDefinition> serviceDefinitionMapper, A def,
            B serviceCharacter) {
        super();
        this.serviceDefinitionMapper = serviceDefinitionMapper;
        this.def = def;
        this.serviceCharacter = serviceCharacter;
    }

Please Note: Do not keep any Constructor/@AllArgsConstructor in your Model class unless it is very much needed to be declared.

Behold

Answer 15

In my case annotating fields with lombok @NonNull was causing the trouble.

Africander

Answer 16

import lombok.RequiredArgsConstructor;

import lombok.extern.slf4j.Slf4j;

@Service
    @RequiredArgsConstructor
    @Transactional
    @Slf4j
    public class UserServiceImp implements UserService, UserDetailsService {
    ....
    }

Krenek

Answer 17

I faced the same issue but with my own created interface repository that could not be found. The answer for me was that Spring 2.6.3 has bugs with Java 8. After I switched to the Java 11 version everything goes correctly.

More info about this kind of problems I found here https://github.com/spring-projects/spring-boot/issues/6987

Orpine

Answer 18

In my case I had this problem but it was because of I added an annotation of @Component in my Exception code which I shouldn't because we don't want it to be scanned really we're just using it to handle an exception in our service or I don't know try to delete the annotation in your built-in exception.

Worked on my machine.

Deteriorate

Answer 19

I had this problem while testing with JUnit. It was that I forgot to create @MockBean annotation, that's why the bean was missing.

Cassey

Hello Liubomyr and welcome to StackOverflow. Future users may find helpful to see a bit more context. Could you please add some example code in that regard? – Terrorstricken

Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center. – Buffington

The question was not about testing or any JUnit-case, so mocking and a @MockBean annotation might help in this context. I doubt that this answer is helpful. – Nickens

Answer 20

Not related to the above issue but if you have the same error of bean creation in a spring boot application and you are getting the same above error please check whether you have added the class path in @ComponentScan( of the main spring booth application launching class.

Brassware

Answer 21

For it to work I had to add this @RequiredArgsConstructor annotation to my class, and then added this @Value("${inputFilePath}") annotation to access the variable. See below:

    @Component
    @RequiredArgsConstructor
    public class InputItemReader extends  FlatFileItemReader<Map<String, 
     Object>> implements StepExecutionListener {

        @Value("${inputFilePath}")
        private inputFilePath;


        //...

    }

Redoubtable

Answer 22

In my case, removing the @EnableJpaRepositories annotation from my config fixed the issue. The repositories are still wired correctly.

Before:

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories
@EnableJpaAuditing
public class PersistenceConfig {

After:

@Configuration
@EnableTransactionManagement
@EnableJpaAuditing
public class PersistenceConfig {

Ceria

Answer 23

Adding to the "services" block of my application-default.yml & application-kubernetes.yml fixed the issue for me.

Tainataint

Answer 24

Check if the application.properties file is written correctly.

For some reason my application was spring.profiles.on=test in the application.properties file.

When i change it to the proper value of spring.profiles.active=test it worked.

Busyness

Answer 25

Generate Constructor from Superclass. It worked for me.

e.g.

public UserModel() {
        super();
        // TODO Auto-generated constructor stub
    }

Kriskrischer

Answer 26

If you want to add beans to your context that are defined in some external library then use @Import annotation and pass the class file name/bean name. Add @Import to your main configuration file having @SpringBootApplication annotation

Ref : https://www.baeldung.com/spring-import-annotation

Elielia

Answer 27

Use:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>

instead of:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-data-mongodb</artifactId>
</dependency>

Bully

Answer 28

This issue will also occurs when by mistake method is @Autowired in place of @Override but this is a rare case.

General Case:

1. Missing Bean Definition (Service or any component should be anotated properly)
2. Component Scan Make sure that the package containing your class is included in Spring's component scan.
3. Bean Configuration: Verify that you have a bean definition (for Instance you are trying to autowire) in your Spring configuration.
4. @Autowired Annotation: Ensure that the @Autowired annotation is correctly used.

Demotic

Answer 29

This issue occurred when using spring boot 3.

I used below dependency for sql connecto. Replaced javax with Jakarta for @Table and @Entity. This resolved my issue.

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.1.0</version>
</dependency>

Guimpe

Answer 30

In my case, I had to use RequiredArgsContructor annotation and removed final keyword for the variable blobContainerName. In the end, it looks like this.

@Service
@RequiredArgsConstructor
public class AzureStorageServiceImpl implements StorageService {

    @Value("${spring.cloud.azure.storage.blob.container-name}")
    private String blobContainerName;

Pochard

Answer 31

I had a similar issue in a different scenario. I had everything perfectly working until I found that the main Application method has several annotations along with @EnableAutoConfiguration.

Also, make sure the services and their classes are @Overriding and @Autowired as needed.

I removed all the unwanted annotations, and it worked like a charm!!

From:

@EntityScan(basePackages = {"com.some.*"})  //removed
@EnableJpaRepositories(basePackages = {"com.some.*"}) //removed
@EnableAutoConfiguration
@EnableAsync
@ComponentScan(basePackages = {"com.some.*"}) //removed

to:

@SpringBootApplication //this will ask Spring to do scanning, if your package structure is good, you can just use this

@Controller
MyController {

//has Autowired dependency
@Autowired
private MyService myservice;

//using myService.someMethod(String parameter);

}

Removed the

[12Dec2023 14:40:32.65]WARN

o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - 
Exception encountered during context initialization - cancelling refresh attempt: 
org.springframework.beans.factory.UnsatisfiedDependencyException: 
Error creating bean with name 'myController': Unsatisfied dependency expressed through field 'myService': 
Error creating bean with name 'myServiceImpl': 
Unsatisfied dependency expressed through method 'someMethod' parameter 0: 
No qualifying bean of type 'java.lang.String' available: 
expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}

Description:

Parameter 0 of method someMethod in com.service.MyServiceImpl required a bean of type 'java.lang.String' that could not be found.

The injection point has the following annotations: - @org.springframework.beans.factory.annotation.Autowired(required=true)

Bridgehead

Answer 32

In my case, I just needed to add lombok.config file in the root of my project with the following info:

config.stopBubbling=true
lombok.addLombokGeneratedAnnotation=true
lombok.copyableAnnotations+=org.springframework.beans.factory.annotation.Value

Myeloid