我试图遵循本文[1]在Spring MvcMock测试中模拟安全性。

我要测试的REST服务如下所示：

@RequestMapping(value = "/something/{id}", method = RequestMethod.DELETE)
public ResponseEntity<Void> deleteXXX(@ActiveUser AppUser user, @PathVariable(value = "id") Long id) {
  ...
}

其中@ActiveUser是的自定义实现/扩展@AuthenticationPrincipal和，AppUser是自定义UserDetails实现。

在测试中，我这样做：

mockMvc.perform(delete("/something/{i}", "123").with(user(new AppUser(...))));

我还添加了一些TestExecutionLIsteners：

@TestExecutionListeners(listeners = { ServletTestExecutionListener.class, DependencyInjectionTestExecutionListener.class, DirtiesContextTestExecutionListener.class, TransactionalTestExecutionListener.class, WithSecurityContextTestExecutionListener.class })

但是它失败了：



    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.corp.AppUser]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.corp.AppUser.<init>()
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973)
    at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:885)


可以，因为`AppUser`它没有默认的构造函数，但是框架实际上不应该创建用户，而是使用我传递给测试的那个。

为了在运行时解决此问题，我必须将`AuthenticationPrincipalArgumentResolver`a作为添加`HandlerMethodArgumentResolver`到Web配置中，但是如何在测试用例中做到这一点？

有什么可行的例子吗？

[1] [https://spring.io/blog/2014/05/23/preview-spring-security-test-web-
security](https://spring.io/blog/2014/05/23/preview-spring-security-test-web-
security)

**编辑：**

测试类及其配置如下所示：



    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(classes = { MyControllerTest.DummyAppConfig.class,  MyControllerTest.DummySecurityConfiguration.class })
    @TestExecutionListeners(listeners = { ServletTestExecutionListener.class, DependencyInjectionTestExecutionListener.class, DirtiesContextTestExecutionListener.class, TransactionalTestExecutionListener.class, WithSecurityContextTestExecutionListener.class })
    @WebAppConfiguration
    public class MyControllerTest {


    @Test
    public void doTest() throws Exception {
        mockMvc.perform(delete("/something/{i}", "123").with(user(new AppUser(...))));
    }


    @Configuration
    public static class DummyAppConfig extends WebMvcConfigurerAdapter {

        @Override
        public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
            argumentResolvers.add(new AuthenticationPrincipalArgumentResolver());
    }

        @Bean
        public MyController aController() {
            return new MyController();
        }

    }

    @Configuration
    @EnableWebSecurity
    public static class DummySecurityConfiguration extends WebSecurityConfigurerAdapter {
    }

这是完整的堆栈跟踪：

    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.corp.AppUser]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.corp.AppUser.<init>()
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973)
    at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:885)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:694)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
    at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
    at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:170)
    at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:137)
    at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:145)
    at com.corp.ControllerTest.doTest(RestCorporateAccountSearchProfilesControllerTest.java:231)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:72)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:81)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:216)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:82)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:60)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:67)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:162)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
    Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.corp.AppUser]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.corp.AppUser.<init>()
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:107)
    at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.createAttribute(ModelAttributeMethodProcessor.java:138)
    at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.createAttribute(ServletModelAttributeMethodProcessor.java:81)
    at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:104)
    at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:79)
    at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:157)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:124)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    ... 39 more
    Caused by: java.lang.NoSuchMethodException: com.corp.AppUser.<init>()
    at java.lang.Class.getConstructor0(Class.java:2800)
    at java.lang.Class.getDeclaredConstructor(Class.java:2043)
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:104)
    ... 52 more