为什么静态块未使用@Autowire注释进行初始化
无法使用 @Autowired 注释初始化类的静态块。但是能够使用新 运算符对其进行初始化。如果@Mockbean的存在可以改变这里的事情，请原谅我的无知。我还需要了解更多。
使用@Component注释的服务类，这意味着@Autowired肯定会创建此类的实例。
@Component
public class StudentService {
private static List<Student> students = new ArrayList<>();
static {
//Initialize Data
Course course1 = new Course("Course1", "Spring", "10 Steps", Arrays
.asList("Learn Maven", "Import Project", "First Example",
"Second Example"));
Course course2 = new Course("Course2", "Spring MVC", "10 Examples",
Arrays.asList("Learn Maven", "Import Project", "First Example",
"Second Example"));
Course course3 = new Course("Course3", "Spring Boot", "6K Students",
Arrays.asList("Learn Maven", "Learn Spring",
"Learn Spring MVC", "First Example", "Second Example"));
Course course4 = new Course("Course4", "Maven",
"Most popular maven course on internet!", Arrays.asList(
"Pom.xml", "Build Life Cycle", "Parent POM",
"Importing into Eclipse"));
Student ranga = new Student("Student1", "Ranga Karanam",
"Hiker, Programmer and Architect", new ArrayList<>(Arrays
.asList(course1, course2, course3, course4)));
Student satish = new Student("Student2", "Satish T",
"Hiker, Programmer and Architect", new ArrayList<>(Arrays
.asList(course1, course2, course3, course4)));
students.add(ranga);
students.add(satish);
}
/*public static void main(String[] args) {
StudentService studentService = new StudentService();
System.out.println("Students From Instance " + studentService.students);
System.out.println("Returning student with ID Student1 From Instance " + studentService.retrieveStudent("Student1"));
System.out.println(students);
}*/
public List<Student> retrieveAllStudents() {
return students;
}
public Student retrieveStudent(String studentId) {
for (Student student : students) {
if (student.getId().equals(studentId)) {
return student;
}
}
return null;
}
学生班
public class Student {
private String id;
private String name;
private String description;
private List<Course> courses;
public Student(String id, String name, String description,
List<Course> courses) {
super();
this.id = id;
this.name = name;
this.description = description;
this.courses = courses;
}
//getter and setters
课程班
public class Course {
private String id;
private String name;
private String description;
private List<String> steps;
public Course() {
}
public Course(String id, String name, String description, List<String> steps) {
super();
this.id = id;
this.name = name;
this.description = description;
this.steps = steps;
}
//getter and setters
使用@Autowired
测试课程和结果@RunWith(SpringRunner.class)
@WebMvcTest(value = StudentController.class, secure = false)
public class StudentControllerTest {
@Autowired
private MockMvc mockMvc;
@MockBean
StudentService studentService;
@AutoWired
StudentService studentService1;
@Test
public void testSomething() {
Student st1 = studentService1.retrieveStudent("Student2");
assertNotNull(st1);
}
}
使用new运算符测试类和结果
@RunWith(SpringRunner.class)
@WebMvcTest(value = StudentController.class, secure = false)
public class StudentControllerTest {
@Autowired
private MockMvc mockMvc;
@MockBean
StudentService studentService;
StudentService studentService1 = new StudentService();
@Test
public void testSomething() {
Student st1 = studentService1.retrieveStudent("Student2");
assertNotNull(st1);
}
}
堆栈跟踪
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building student-services 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ student-services ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ student-services ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 6 source files to /Users/tadtab/Documents/student-services/target/classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ student-services ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/tadtab/Documents/student-services/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ student-services ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ student-services ---
[INFO] Surefire report directory: /Users/tadtab/Documents/student-services/target/surefire-reports
-------------------------------------------------------
T E S T S
-------------------------------------------------------
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.
Running com.in28minutes.springboot.studentservices.StudentServicesApplicationTests
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.4.4.RELEASE)
2017-12-31 03:19:23.644 INFO 15809 --- [ main] c.i.s.s.StudentServicesApplicationTests : Starting StudentServicesApplicationTests on Tadeles-MacBook-Pro.local with PID 15809 (started by tadtab in /Users/tadtab/Documents/student-services)
2017-12-31 03:19:23.646 INFO 15809 --- [ main] c.i.s.s.StudentServicesApplicationTests : No active profile set, falling back to default profiles: default
2017-12-31 03:19:24.090 INFO 15809 --- [ main] o.s.c.a.AnnotationUtils : Failed to introspect annotations on [class org.springframework.boot.actuate.autoconfigure.EndpointWebMvcHypermediaManagementContextConfiguration]: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
2017-12-31 03:19:24.090 INFO 15809 --- [ main] o.s.c.a.AnnotationUtils : Failed to introspect annotations on [class org.springframework.boot.actuate.autoconfigure.EndpointWebMvcHypermediaManagementContextConfiguration]: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
2017-12-31 03:19:25.389 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/configprops || /configprops.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.390 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/metrics/{name:.*}],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2017-12-31 03:19:25.390 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/metrics || /metrics.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.391 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/mappings || /mappings.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.392 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/trace || /trace.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.393 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/dump || /dump.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.393 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/heapdump || /heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2017-12-31 03:19:25.394 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/info || /info.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.395 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/health || /health.json],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(java.security.Principal)
2017-12-31 03:19:25.397 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/autoconfig || /autoconfig.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.398 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/env/{name:.*}],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EnvironmentMvcEndpoint.value(java.lang.String)
2017-12-31 03:19:25.398 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/env || /env.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.398 INFO 15809 --- [ main] o.s.b.a.e.m.EndpointHandlerMapping : Mapped "{[/beans || /beans.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-31 03:19:25.553 INFO 15809 --- [ main] c.i.s.s.StudentServicesApplicationTests : Started StudentServicesApplicationTests in 2.245 seconds (JVM running for 3.231)
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.334 sec - in com.in28minutes.springboot.studentservices.StudentServicesApplicationTests
Running com.in28minutes.springboot.controller.StudentControllerTest
2017-12-31 03:19:25.574 INFO 15809 --- [ main] .b.t.a.w.s.WebMvcTestContextBootstrapper : Neither @ContextConfiguration nor @ContextHierarchy found for test class [com.in28minutes.springboot.controller.StudentControllerTest], using SpringBootContextLoader
2017-12-31 03:19:25.574 INFO 15809 --- [ main] o.s.t.c.s.AbstractContextLoader : Could not detect default resource locations for test class [com.in28minutes.springboot.controller.StudentControllerTest]: no resource found for suffixes {-context.xml, Context.groovy}.
2017-12-31 03:19:25.575 INFO 15809 --- [ main] t.c.s.AnnotationConfigContextLoaderUtils : Could not detect default configuration classes for test class [com.in28minutes.springboot.controller.StudentControllerTest]: StudentControllerTest does not declare any static, non-private, non-final, nested classes annotated with @Configuration.
2017-12-31 03:19:25.580 INFO 15809 --- [ main] .b.t.c.SpringBootTestContextBootstrapper : Found @SpringBootConfiguration com.in28minutes.springboot.StudentServicesApplication for test class com.in28minutes.springboot.controller.StudentControllerTest
2017-12-31 03:19:25.585 INFO 15809 --- [ main] .b.t.a.w.s.WebMvcTestContextBootstrapper : Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener, org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]
2017-12-31 03:19:25.588 INFO 15809 --- [ main] .b.t.a.w.s.WebMvcTestContextBootstrapper : Could not instantiate TestExecutionListener [org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [org/springframework/transaction/interceptor/TransactionAttribute]
2017-12-31 03:19:25.589 INFO 15809 --- [ main] .b.t.a.w.s.WebMvcTestContextBootstrapper : Could not instantiate TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [org/springframework/transaction/interceptor/TransactionAttributeSource]
2017-12-31 03:19:25.589 INFO 15809 --- [ main] .b.t.a.w.s.WebMvcTestContextBootstrapper : Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@78a0ff63, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@7c601d50, org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@79b2852b, org.springframework.test.context.support.DirtiesContextTestExecutionListener@326d27ac, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener@4d499d65, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener@313f8301, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener@5cc9d3d0, org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener@7c2dfa2, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener@661d88a, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener@4b0b64cc]
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.4.4.RELEASE)
2017-12-31 03:19:25.627 INFO 15809 --- [ main] c.i.s.c.StudentControllerTest : Starting StudentControllerTest on Tadeles-MacBook-Pro.local with PID 15809 (started by tadtab in /Users/tadtab/Documents/student-services)
2017-12-31 03:19:25.627 INFO 15809 --- [ main] c.i.s.c.StudentControllerTest : No active profile set, falling back to default profiles: default
2017-12-31 03:19:25.987 INFO 15809 --- [ main] o.s.b.t.m.w.SpringBootMockServletContext : Initializing Spring FrameworkServlet ''
2017-12-31 03:19:25.988 INFO 15809 --- [ main] o.s.t.w.s.TestDispatcherServlet : FrameworkServlet '': initialization started
2017-12-31 03:19:25.995 INFO 15809 --- [ main] o.s.t.w.s.TestDispatcherServlet : FrameworkServlet '': initialization completed in 7 ms
2017-12-31 03:19:26.022 INFO 15809 --- [ main] c.i.s.c.StudentControllerTest : Started StudentControllerTest in 0.427 seconds (JVM running for 3.7)
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.447 sec <<< FAILURE! - in com.in28minutes.springboot.controller.StudentControllerTest
testSomething(com.in28minutes.springboot.controller.StudentControllerTest) Time elapsed: 0.012 sec <<< FAILURE!
java.lang.AssertionError: null
at org.junit.Assert.fail(Assert.java:86)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertNotNull(Assert.java:712)
at org.junit.Assert.assertNotNull(Assert.java:722)
at com.in28minutes.springboot.controller.StudentControllerTest.testSomething(StudentControllerTest.java:52)
Results :
Failed tests:
StudentControllerTest.testSomething:52 null
Tests run: 2, Failures: 1, Errors: 0, Skipped: 0
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.587 s
[INFO] Finished at: 2017-12-31T03:19:26-05:00
[INFO] Final Memory: 25M/320M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (default-test) on project student-services: There are test failures.
[ERROR]
[ERROR] Please refer to /Users/tadtab/Documents/student-services/target/surefire-reports for the individual test results.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
0 个答案:
没有答案
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