Spring Data JPA: org.springframework.beans.factory.UnsatisfiedDependencyException:

I am trying to add crossOrigin variable in Application.property file. and accessing that variable through controller using @value its working for following two end point's but when I am adding @value to third end point I am getting following error message

AccountController.java

@RestController
@RequestMapping("/api.spacestudy.com/SpaceStudy/Admin/Account")
public class AccountController {

    @Autowired
    AccountService accService;

    @Value("${crossOrigin}")
    @GetMapping("/loadAcctLocationList")
    public ResponseEntity<List<Account>> findLocation() {
        return  ResponseEntity.ok(accService.findLocation());
    }

}

TestAccountController

@RunWith(SpringRunner.class)
public class TestAccountController {

    private MockMvc mockMvc;

    @Mock
    private AccountService accountService;

    @InjectMocks
    private AccountController accountController;

    @Before
    public void setup() {
        mockMvc = MockMvcBuilders.standaloneSetup(accountController).build();
    }

    @Test
    public void findLocationTest() throws Exception {

        Account account = new Account();
        account.setsLocation("Test1");

        List<Account> accountObj = new ArrayList<Account>();
        accountObj.add(account);    

        Mockito.when(accountService.findLocation()).thenReturn(accountObj);

        mockMvc.perform(get("/spacestudy/$ InstituteIdentifier/admin/account/loadAcctLocationList"))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$[0].sLocation", is("Test1")))
                .andExpect(jsonPath("$.*",Matchers.hasSize(1)));    

        for(Account result: accountObj) {

            assertEquals("Test1", result.sLocation);

        }

        }

application.properties

crossOrigin =@CrossOrigin(origins ="http://localhost:4200")
server.port=8086
spring.datasource.url=jdbc:postgresql://localhost/SpaceStudyDB
spring.datasource.username=postgres
spring.datasource.password=postgres

Console

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-05-15 01:59:17.915 ERROR 5240 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accountController': Unsatisfied dependency expressed through method 'btnSaveClick' parameter 0; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert value of type 'java.lang.String' to required type 'com.spacestudy.model.AccountMaintenanceSave'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'com.spacestudy.model.AccountMaintenanceSave': no matching editors or conversion strategy found
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:667) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
    at com.spacestudy.SpaceStudyAdminAccountMaintenance.main(SpaceStudyAdminAccountMaintenance.java:10) [classes/:na]
Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert value of type 'java.lang.String' to required type 'com.spacestudy.model.AccountMaintenanceSave'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'com.spacestudy.model.AccountMaintenanceSave': no matching editors or conversion strategy found
    at org.springframework.beans.TypeConverterSupport.doConvert(TypeConverterSupport.java:74) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.TypeConverterSupport.convertIfNecessary(TypeConverterSupport.java:47) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1093) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:659) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    ... 19 common frames omitted
Caused by: java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'com.spacestudy.model.AccountMaintenanceSave': no matching editors or conversion strategy found
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:307) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:109) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    at org.springframework.beans.TypeConverterSupport.doConvert(TypeConverterSupport.java:64) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE]
    ... 23 common frames omitted

Can any one tell me what I am doing wrong in above code ? or tell me any another way to declare variable in application.property file

Solution

It looks like what Spring is trying to do here is inject the value of ${crossOrigin} into your method.

In findLocation, it's not breaking because there are no method arguments in which to inject the value
In the btnSearchClick, there's more than one argument and it's not attempting to inject the value
There's one argument, and it's trying to inject the value of ${crossOrigin} into AccountMaintenanceSave saveObj

You should just inject ${crossOrigin} into a @CrossOrigin at the top of your class? Like so:

@RestController
@CrossOrigin(origins = "${crossOrigin}")
@RequestMapping("/api.spacestudy.com/SpaceStudy/Admin/Account")
public class AccountController {

    @Autowired
    AccountService accService;

    ...
}

And access the variable that way. You'll need to remove the @Value annotations from your controller methods.

You'll also need to just specify the origin name in your application.properties:

crossOrigin=http://localhost:4200