Java 自定义验证器消息：在 ConstraintValidator 的实现中引发异常导致 UnexpectedException
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时间：2020-08-12 20:30:33 来源:igfitidea点击:
Custom validator message: Throwing exception in implementation of ConstraintValidator cause UnexpectedException
提问by pbaranski
So I have custom validator and when I set returnvalue to falsethen it works -
所以我有自定义验证器，当我设置return值时，false它就可以工作了 -
import com.vhealth.api.service.UserService;
import com.vhealth.api.utils.exceptions.InvalidPayloadException;
import org.springframework.beans.factory.annotation.Autowired;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
public class UserNameUniqueValidator implements ConstraintValidator<UserNameUnique, String> {
@Autowired
UserService userService;
@Override
public void initialize(UserNameUnique constraintAnnotation) {
}
@Override
public boolean isValid(String userName, ConstraintValidatorContext context) {
if (userService.findByUserName(userName) != null) {
throw new InvalidPayloadException("Creating user requires unique userName new");
//return false;
}
return true;
}
}
But when I try throw exception in that section I get error that problem is caused by my custom exception:
但是当我在该部分尝试抛出异常时，我收到错误消息，该问题是由我的自定义异常引起的：
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.validation.ValidationException: Unexpected exception during isValid call
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:932)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:801)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:66)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:168)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:136)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:201)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:136)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:134)
at com.vhealth.api.controller.ApiUserControllerTest.shouldReturnErrorMessageToAdminWhenCreatingUserWithUsedUserName(ApiUserControllerTest.java:53)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
at org.junit.runners.ParentRunner.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access @ExceptionHandler(InvalidPayloadException.class)
public ResponseEntity handleEmptyFieldException(InvalidPayloadException ex) {
return new ResponseEntity(ex.getMessage(), HttpStatus.BAD_REQUEST);
}
0(ParentRunner.java:50)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:222)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: javax.validation.ValidationException: Unexpected exception during isValid call
at org.hibernate.validator.engine.ConstraintTree.validateSingleConstraint(ConstraintTree.java:281)
at org.hibernate.validator.engine.ConstraintTree.validateConstraints(ConstraintTree.java:153)
at org.hibernate.validator.engine.ConstraintTree.validateConstraints(ConstraintTree.java:117)
at org.hibernate.validator.metadata.MetaConstraint.validateConstraint(MetaConstraint.java:84)
at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:452)
at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForDefaultGroup(ValidatorImpl.java:397)
at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:361)
at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:313)
at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:139)
at org.springframework.validation.beanvalidation.SpringValidatorAdapter.validate(SpringValidatorAdapter.java:102)
at org.springframework.validation.DataBinder.validate(DataBinder.java:772)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.validate(RequestResponseBodyMethodProcessor.java:115)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:101)
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:77)
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:162)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:123)
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:745)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:920)
... 68 more
Caused by: com.vhealth.api.utils.exceptions.InvalidPayloadException: Creating user requires unique userName new
at com.vhealth.api.utils.validators.UserNameUniqueValidator.isValid(UserNameUniqueValidator.java:22)
at com.vhealth.api.utils.validators.UserNameUniqueValidator.isValid(UserNameUniqueValidator.java:11)
at org.hibernate.validator.engine.ConstraintTree.validateSingleConstraint(ConstraintTree.java:278)
... 90 more
Exception is placed in @Controller ExceptionResolover
异常被放置在 @Controller ExceptionResolover
@Override
public boolean isValid(String userName, ConstraintValidatorContext context) {
if (userService.findByUserName(userName) != null) {
context.disableDefaultConstraintViolation();
context
.buildConstraintViolationWithTemplate("User " + userName + "already exists!")
.addConstraintViolation();
return false;
}
return true;
}
Edit: Throwing InvalidPayloadExceptionexception in UserNameUniqueValidatorreturns custom message so I avoid to use BindingResultin main controller for extraction default message from validaor
编辑：InvalidPayloadException在UserNameUniqueValidator返回自定义消息中抛出异常，因此我避免BindingResult在主控制器中使用以从中提取默认消息validaor
采纳答案by mchrobok
If you want to display custom message try this piece of code.
如果您想显示自定义消息，请尝试这段代码。
Caused by: com.vhealth.api.utils.exceptions.InvalidPayloadException: Creating user requires unique userName new
at com.vhealth.api.utils.validators.UserNameUniqueValidator.isValid(UserNameUniqueValidator.java:22)
at com.vhealth.api.utils.validators.UserNameUniqueValidator.isValid(UserNameUniqueValidator.java:11)
at org.hibernate.validator.engine.ConstraintTree.validateSingleConstraint(ConstraintTree.java:278)
... 90 more
回答by Acewin
Are you getting any compiler error. Please check the error thrown is
您是否收到任何编译器错误。请检查抛出的错误是
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.validation.ValidationException: Unexpected exception during isValid call
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:932)
I think it only means that exception you have thrown is a Nested exception
我认为这仅意味着您抛出的异常是嵌套异常
Also check the stacktrace at com.vhealth.api.controller.ApiUserControllerTest.shouldReturnErrorMessageToAdminWhenCreatingUserWithUsedUserName(ApiUserControllerTest.java:53)
还要检查 com.vhealth.api.controller.ApiUserControllerTest.shouldReturnErrorMessageToAdminWhenCreatingUserWithUsedUserName(ApiUserControllerTest.java:53) 上的堆栈跟踪
@Override
public boolean isValid(String userName, ConstraintValidatorContext context) {
if (userService !=null && userService.findByUserName(userName) != null) {
context.disableDefaultConstraintViolation();
context
.buildConstraintViolationWithTemplate("User " + userName + "already exists!")
.addConstraintViolation();
return false;
}
return true;
}
回答by Dan
You can add not null check! You can still follow [mchrobok] answer I think better will be:
您可以添加非空检查！您仍然可以按照 [mchrobok] 回答我认为更好的是：
##代码##