Dozer 寻找 xml 配置而不是 Java 配置

问题描述

我正在使用 Spring Data Rest、Gradle 和 Oracle Express DB 进行 Spring Boot 项目，其中我使用 DozerBeanMapper 将实体映射到 DTO，反之亦然，我不使用 Dozer 的 xml 配置，只使用 Java 配置：

@Slf4j
@Configuration
public class DozerConfig {
    @Bean
    public DozerBeanMapper getDozerMapper() {
        log.info("Initializing DozerBeanMapper bean");
        return new DozerBeanMapper();
    }
}

另外为了清楚起见，我已经明确配置了所有必须映射的字段，尽管它们都具有相同的名称。例如我的客户端映射器：

@Slf4j
@Component
public class ClientMapper extends BaseMapper {

    private BeanMappingBuilder builder = new BeanMappingBuilder() {
        @Override
        protected void configure() {
            mapping(Client.class,ClientDTO.class)
                    .fields("id","id")
                    .fields("name","name")
                    .fields("midName","midName")
                    .fields("surname","surname")
                    .exclude("password")
                    .fields("phone","phone")
                    .fields("email","email")
                    .fields("address","address")
                    .fields("idCardNumber","idCardNumber")
                    .fields("idCardIssueDate","idCardIssueDate")
                    .fields("idCardExpirationDate","idCardExpirationDate")
                    .fields("bankAccounts","bankAccounts")
                    .fields("accountManager","accountManager")
                    .fields("debitCardNumber","debitCardNumber")
                    .fields("creditCardNumber","creditCardNumber")
                    .fields("dateCreated","dateCreated")
                    .fields("dateUpdated","dateUpdated");
        }
    };

    @Autowired
    public ClientMapper(DozerBeanMapper mapper) {
        super(mapper);
        mapper.addMapping(builder);
    }

    public ClientDTO toDto(Client entity) {
        log.info("Mapping Client entity to DTO");
        return mapper.map(entity,ClientDTO.class);
    }

    public Client toEntity(ClientDTO dto) {
        log.info("Mapping Client DTO to entity");
        return mapper.map(dto,Client.class);
    }

    public List<ClientDTO> toDtos(List<Client> entities) {
        log.info("Mapping Client entities to DTOs");
        return entities.stream()
                       .map(entity -> toDto(entity))
                       .collect(Collectors.toList());
    }

    public List<Client> toEntities(List<ClientDTO> dtos) {
        log.info("Mapping Client DTOs to entities");
        return dtos.stream()
                   .map(dto -> toEntity(dto))
                   .collect(Collectors.toList());
    }

    public EmployeeDTO toEmployeeDto(Employee entity) {
        log.info("Mapping Employee entity to DTO");
        return mapper.map(entity,EmployeeDTO.class);
    }

    public Employee toEmployeeEntity(EmployeeDTO dto) {
        log.info("Mapping Employee DTO to entity");
        return mapper.map(dto,Employee.class);
    }

    public List<EmployeeDTO> toEmployeeDtos(List<Employee> entities) {
        log.info("Mapping Employee entities to DTOs");
        return entities.stream()
                .map(entity -> toEmployeeDto(entity))
                .collect(Collectors.toList());
    }

    public List<Employee> toEmployeeEntities(List<EmployeeDTO> dtos) {
        log.info("Mapping Employee DTOs to entities");
        return dtos.stream()
                .map(dto -> toEmployeeEntity(dto))
                .collect(Collectors.toList());
    }
}

尽管如此，我还是收到了以下异常：

"httpStatus": "500 Internal Server Error","exception": "java.lang.IllegalArgumentException","message": "setAttribute(name,value):\n  name: "http://apache.org/xml/features/validation/schema\"\n  value: \"true\"","stackTrace": [
        "oracle.xml.jaxp.JXDocumentBuilderFactory.setAttribute(JXDocumentBuilderFactory.java:289)","org.dozer.loader.xml.XMLParserFactory.createDocumentBuilderFactory(XMLParserFactory.java:71)","org.dozer.loader.xml.XMLParserFactory.createParser(XMLParserFactory.java:50)","org.dozer.loader.xml.MappingStreamReader.<init>(MappingStreamReader.java:43)","org.dozer.loader.xml.MappingFileReader.<init>(MappingFileReader.java:44)","org.dozer.DozerBeanMapper.loadFromFiles(DozerBeanMapper.java:219)","org.dozer.DozerBeanMapper.loadCustomMappings(DozerBeanMapper.java:209)","org.dozer.DozerBeanMapper.initMappings(DozerBeanMapper.java:315)","org.dozer.DozerBeanMapper.getMappingProcessor(DozerBeanMapper.java:192)","org.dozer.DozerBeanMapper.map(DozerBeanMapper.java:120)","com.rosenhristov.bank.exception.mapper.ClientMapper.toDto(ClientMapper.java:52)","com.rosenhristov.bank.service.ClientService.lambda$getClientById$0(ClientService.java:27)","java.base/java.util.Optional.map(Optional.java:265)","com.rosenhristov.bank.service.ClientService.getClientById(ClientService.java:27)","com.rosenhristov.bank.controller.ClientController.getClientById(ClientController.java:57)","java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)","java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)","java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)","java.base/java.lang.reflect.Method.invoke(Method.java:566)","org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)","org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)","org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)","org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:893)","org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:807)","org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)","org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1061)","org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:961)","org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)","org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)","javax.servlet.http.HttpServlet.service(HttpServlet.java:626)","org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)","javax.servlet.http.HttpServlet.service(HttpServlet.java:733)","org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)","org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)","org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)","org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)","org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)","org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)","org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)","org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)","org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)","org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)","org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)","org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)","org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)","org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)","org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)","org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)","org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)","org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)","org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)","org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)","org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)","java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)","java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)","org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)","java.base/java.lang.Thread.run(Thread.java:834)"
]

考虑到这一点，Dozer 似乎正在尝试查找一些 xml 配置文件：

"oracle.xml.jaxp.JXDocumentBuilderFactory.setAttribute(JXDocumentBuilderFactory.java:289)"

它似乎在搜索 xml 验证模式（看看下图中的 var1）：

当我启动应用程序时，我刚刚在 IntelliJ 控制台中看到以下内容：

Trying to find Dozer configuration file: dozer.properties
2020-12-23 11:46:09.855  WARN 17488 --- [  restartedMain] org.dozer.config.GlobalSettings: Dozer configuration file not found: dozer.properties.  Using defaults for all Dozer global properties.

可能我必须搜索 dozer.properties 并找出如何让它寻找 Java 配置？

有人可以帮我吗？我在互联网上搜索了一些解决方案，但仍然没有找到合适的解决方案。我是 Dozer 的新手，我之前用过 Mapstruct？

解决方法

你可以试试我的beanknife自动生成dto文件。它将有一个读取方法将实体转换为 dto。虽然没有从 dto 到实体的转换器，但我认为在大多数情况下你不需要它。

@ViewOf(value = Client.class,genName = "ClientDto",includePattern = ".*")
class ClientDtoConfiguration {}

然后它将生成一个名为“ClientDto”的 dto 类，其中包含 Client 的所有属性。

Client client = ...
ClientDto clientDto = ClientDto.read(client);
List<Client> clients = ...
List<ClientDto> clientDtos = ClientDto.read(clients);

然后序列化 dtos 而不是实体。