jackson 无法反序列化包含从AMQP消息传送接收的LocalDate的对象

c9qzyr3d  于 2022-11-09  发布在  其他
关注(0)|答案(2)|浏览(169)

我尝试通过AMQP消息传递（RabbitMQ）发送一个对象，但是当我收到消息时，转换器引发了JsonMappingException，因为它无法反序列化该消息。

订单.java：

  1. import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
  2. import com.fasterxml.jackson.databind.annotation.JsonSerialize;
  3. import com.fasterxml.jackson.datatype.joda.deser.LocalDateDeserializer;
  4. import com.fasterxml.jackson.datatype.joda.ser.LocalDateSerializer;
  5. import org.joda.time.LocalDate;
  7. import javax.persistence.*;
  8. import java.util.List;
  10. /**
  11.  * Created by Flaviu Cicio on 07.07.2016.
  12.  */
  13. @Entity
  14. @Table(name = "t_order", schema = "orders")
  15. public class Order {
  17.     @Id
  18.     private Long id;
  20.     private Long userId;
  22.     @JsonSerialize(using = LocalDateSerializer.class)
  23.     @JsonDeserialize(using = LocalDateDeserializer.class)
  24.     private LocalDate date;
  26.     @OneToMany(mappedBy="byOrder", cascade = CascadeType.ALL)
  27.     @GeneratedValue( strategy = GenerationType.IDENTITY )
  28.     private List<OrderProduct> products;
  30.     public Order() {
  31.     }
  33.     public Order(Long id, Long userId, List<OrderProduct> products, LocalDate date) {
  35.         this.id = id;
  36.         this.userId = userId;
  37.         this.products = products;
  38.         this.date = date;
  39.     }
  41.     public Long getId() {
  43.         return id;
  44.     }
  46.     public void setId(Long id) {
  47.         this.id = id;
  48.     }
  50.     public Long getUserId() {
  51.         return userId;
  52.     }
  54.     public void setUserId(Long userId) {
  55.         this.userId = userId;
  56.     }
  58.     public List<OrderProduct> getProducts() {
  59.         return products;
  60.     }
  62.     public void setProducts(List<OrderProduct> products) {
  63.         this.products = products;
  64.     }
  66.     public LocalDate getDate() {
  67.         return date;
  68.     }
  70.     public void setDate(LocalDate date) {
  71.         this.date = date;
  72.     }
  74.     @Override
  75.     public String toString() {
  76.         return "Order{" +
  77.                 "id=" + id +
  78.                 ", userId=" + userId +
  79.                 ", date=" + date +
  80.                 '}';
  81.     }
  83. }

兔子配置.java：

  1. import org.springframework.amqp.core.AmqpAdmin;
  2. import org.springframework.amqp.core.Queue;
  3. import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
  4. import org.springframework.amqp.rabbit.connection.ConnectionFactory;
  5. import org.springframework.amqp.rabbit.core.RabbitAdmin;
  6. import org.springframework.amqp.rabbit.core.RabbitTemplate;
  7. import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
  8. import org.springframework.amqp.support.converter.MessageConverter;
  9. import org.springframework.context.annotation.Bean;
  10. import org.springframework.context.annotation.Configuration;
  12. @Configuration
  13. public class RabbitConfiguration {
  15.     @Bean
  16.     public ConnectionFactory connectionFactory() {
  17.         CachingConnectionFactory connectionFactory =
  18.                 new CachingConnectionFactory("localhost");
  19.         return connectionFactory;
  20.     }
  22.     @Bean
  23.     public AmqpAdmin amqpAdmin() {
  24.         return new RabbitAdmin(connectionFactory());
  25.     }
  27.     @Bean
  28.     public MessageConverter jsonMessageConverter(){
  29.         return new Jackson2JsonMessageConverter();
  30.     }
  32.     @Bean
  33.     public RabbitTemplate rabbitTemplate() {
  34.         RabbitTemplate template = new RabbitTemplate(connectionFactory());
  35.         template.setRoutingKey("order-queue");
  36.         template.setMessageConverter(jsonMessageConverter());
  37.         return template;
  38.     }
  39.     @Bean
  40.     public Queue userQueue() {
  41.         return new Queue("order-queue", false);
  42.     }
  44. }

订单控制器.java：

  1. import com.orderservice.service.OrderService;
  2. import com.shopcommon.model.Order;
  3. import com.shopcommon.model.OrderProduct;
  4. import com.shopcommon.model.Product;
  5. import com.shopcommon.model.User;
  6. import org.apache.log4j.Logger;
  7. import org.springframework.amqp.core.AmqpAdmin;
  8. import org.springframework.amqp.rabbit.core.RabbitTemplate;
  9. import org.springframework.beans.factory.annotation.Autowired;
  10. import org.springframework.web.bind.annotation.*;
  12. import java.io.IOException;
  13. import java.net.HttpURLConnection;
  14. import java.net.MalformedURLException;
  15. import java.net.URL;
  16. import java.util.ArrayList;
  17. import java.util.List;
  19. @RestController
  20. @RequestMapping(value = "/orders")
  21. public class OrderController {
  23.     Logger logger = Logger.getLogger(OrderController.class);
  25.     @Autowired
  26.     OrderService orderService;
  28.     @Autowired
  29.     RabbitTemplate rabbitTemplate;
  31.     @Autowired
  32.     AmqpAdmin rabbitAdmin;
  34.     @RequestMapping(method = RequestMethod.GET)
  35.     public List<Order> getOrders(){
  36.         return orderService.get();
  37.     }
  39.     @RequestMapping(value = "/{id}", method = RequestMethod.GET)
  40.     public Order getOrder(@PathVariable("id") Long id){
  42.         logger.info("Returned order: " +  orderService.getById(id));
  44.         return orderService.getById(id);
  45.     }
  47.     /**
  48.      * Persist a new order received from amqp messaging
  49.      *
  50.      * @return
  51.      */
  52.     @RequestMapping(method = RequestMethod.POST)
  53.     public Order createOrder(){
  55.         Order order = (Order) rabbitTemplate.receiveAndConvert("order-queue");
  57.         logger.info("Created a new order: " +  order);
  59.         return orderService.create(order);
  60.     }
  62.     @RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
  63.     public void deleteOrder(@PathVariable("id") Long id){
  64.         orderService.delete(id);
  65.     }
  67.     @RequestMapping(value = "/{id}", method = RequestMethod.PUT)
  68.     public Order updateOrder(@PathVariable("id") Long id, @RequestBody Order order){
  70.         List<OrderProduct> products = order.getProducts();
  71.         products.stream().forEach(orderProduct -> orderProduct.setOrder(order));
  72.         order.setProducts(products);
  74.         return orderService.update(order);
  75.     }
  77.     /**
  78.      * Get user from a specific order
  79.      *
  80.      * @param id
  81.      * @return
  82.      */
  83.     @RequestMapping(value = "/{id}/user", method = RequestMethod.GET)
  84.     public User getOrderUser(@PathVariable("id") Long id){
  85.         Order order = orderService.getById(id);
  87.         rabbitAdmin.purgeQueue("user-queue", false);
  89.         try {
  90.             logger.info("Requested from user-service user from order with id " +  id);
  91.             logger.info("USER ID " +  order.getUserId());
  93.             URL obj = new URL("http://localhost:9999/user-service/users/" + order.getUserId());
  94.             HttpURLConnection con = (HttpURLConnection) obj.openConnection();
  95.             con.getResponseCode();
  97.             User user = (User)rabbitTemplate.receiveAndConvert("user-queue");
  99.             logger.info("Received from user-service: " +  user);
  101.             return user;
  103.         } catch (IOException e) {
  104.             logger.error(e.getMessage());
  105.         }
  107.         logger.info("No user found!");
  108.         return null;
  109.     }
  111.     /**
  112.      * Get products from a specific order
  113.      *
  114.      * @param id
  115.      * @return
  116.      */
  117.     @SuppressWarnings("Duplicates")
  118.     @RequestMapping(value = "/{id}/products", method = RequestMethod.GET)
  119.     public List<Product> getOrderProducts(@PathVariable("id") Long id){
  121.         rabbitAdmin.purgeQueue("product-queue", false);
  123.         List<Product> products = new ArrayList<>();
  125.         logger.info("Requested from product-service products from order with id " +  id);
  127.         Order order = orderService.getById(id);
  129.         order.getProducts().forEach(orderProduct -> {
  130.             try {
  131.                 URL obj = new URL("http://localhost:9999/product-service/products/" + orderProduct.getProductId());
  132.                 HttpURLConnection con = (HttpURLConnection) obj.openConnection();
  133.                 con.getResponseCode();
  135.                 products.add((Product) rabbitTemplate.receiveAndConvert("product-queue"));
  137.             } catch (MalformedURLException e) {
  138.                 logger.error(e.getMessage());
  139.             } catch (IOException e) {
  140.                 logger.error(e.getMessage());
  141.             }
  142.         });
  144.         logger.info("Received from product-service a number of " +  products.size() + " products");
  146.         return products;
  147.     }
  149. }

堆栈追踪：

  1. 2016-07-13 09:40:27.668 ERROR 5108 --- [nio-8004-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.amqp.support.converter.MessageConversionException: Failed to convert Message content] with root cause
  3. com.fasterxml.jackson.databind.JsonMappingException: Unexpected token (START_OBJECT), expected START_ARRAY: expected String, Number or JSON Array
  4.  at [Source: {"id":null,"userId":1,"products":[],"date":{"dayOfMonth":13,"dayOfWeek":"WEDNESDAY","dayOfYear":195,"month":"JULY","monthValue":7,"year":2016,"hour":9,"minute":40,"nano":199000000,"second":27,"chronology":{"id":"ISO","calendarType":"iso8601"}}}; line: 1, column: 44] (through reference chain: com.shopcommon.model.Order["date"])
  5.     at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:261) ~[jackson-databind-2.8.0.jar:2.8.0]
  6.     at com.fasterxml.jackson.databind.DeserializationContext.wrongTokenException(DeserializationContext.java:1340) ~[jackson-databind-2.8.0.jar:2.8.0]
  7.     at com.fasterxml.jackson.datatype.joda.deser.LocalDateDeserializer.deserialize(LocalDateDeserializer.java:65) ~[jackson-datatype-joda-2.6.7.jar:2.6.7]
  8.     at com.fasterxml.jackson.datatype.joda.deser.LocalDateDeserializer.deserialize(LocalDateDeserializer.java:15) ~[jackson-datatype-joda-2.6.7.jar:2.6.7]
  9.     at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:490) ~[jackson-databind-2.8.0.jar:2.8.0]
  10.     at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:95) ~[jackson-databind-2.8.0.jar:2.8.0]
  11.     at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:276) ~[jackson-databind-2.8.0.jar:2.8.0]
  12.     at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:140) ~[jackson-databind-2.8.0.jar:2.8.0]
  13.     at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3789) ~[jackson-databind-2.8.0.jar:2.8.0]
  14.     at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2871) ~[jackson-databind-2.8.0.jar:2.8.0]
  15.     at org.springframework.amqp.support.converter.Jackson2JsonMessageConverter.convertBytesToObject(Jackson2JsonMessageConverter.java:122) ~[spring-amqp-1.5.6.RELEASE.jar:na]
  16.     at org.springframework.amqp.support.converter.Jackson2JsonMessageConverter.fromMessage(Jackson2JsonMessageConverter.java:92) ~[spring-amqp-1.5.6.RELEASE.jar:na]
  17.     at org.springframework.amqp.rabbit.core.RabbitTemplate.receiveAndConvert(RabbitTemplate.java:819) ~[spring-rabbit-1.5.6.RELEASE.jar:na]
  18.     at com.orderservice.controller.OrderController.createOrder(OrderController.java:62) ~[classes/:na]
  19.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91]
  20.     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91]
  21.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
  22.     at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
  23.     at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  24.     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  25.     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  26.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  27.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  28.     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  29.     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  30.     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  31.     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  32.     at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:869) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  33.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  34.     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843) ~[spring-webmvc-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  35.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  36.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  37.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  38.     at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.0.36.jar:8.0.36]
  39.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  40.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  41.     at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:281) ~[spring-boot-actuator-1.3.6.RELEASE.jar:1.3.6.RELEASE]
  42.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  43.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  44.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  45.     at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:115) ~[spring-boot-actuator-1.3.6.RELEASE.jar:1.3.6.RELEASE]
  46.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  47.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  48.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  49.     at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  50.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  51.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  52.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  53.     at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  54.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  55.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  56.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  57.     at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  58.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  59.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  60.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  61.     at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  62.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  63.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  64.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  65.     at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103) ~[spring-boot-actuator-1.3.6.RELEASE.jar:1.3.6.RELEASE]
  66.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.7.RELEASE.jar:4.2.7.RELEASE]
  67.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  68.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  69.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) ~[tomcat-embed-core-8.0.36.jar:8.0.36]
  70.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.36.jar:8.0.36]
  71.     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [tomcat-embed-core-8.0.36.jar:8.0.36]
  72.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) [tomcat-embed-core-8.0.36.jar:8.0.36]
  73.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.36.jar:8.0.36]
  74.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.36.jar:8.0.36]
  75.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528) [tomcat-embed-core-8.0.36.jar:8.0.36]
  76.     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099) [tomcat-embed-core-8.0.36.jar:8.0.36]
  77.     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670) [tomcat-embed-core-8.0.36.jar:8.0.36]
  78.     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520) [tomcat-embed-core-8.0.36.jar:8.0.36]
  79.     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476) [tomcat-embed-core-8.0.36.jar:8.0.36]
  80.     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]
  81.     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]
  82.     at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.36.jar:8.0.36]
  83.     at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
Jackson

2条答案

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yvt65v4c

yvt65v4c1#

首先，您应该添加以下maven依赖项：

  1. <dependency>
  2.         <groupId>com.fasterxml.jackson.datatype</groupId>
  3.         <artifactId>jackson-datatype-jsr310</artifactId>
  4.     </dependency>

其次，您应该使用以下代码更新您的MessasgeConverter bean：

  1. @Bean
  2. public MessageConverter messageConverter()
  3. {
  4.     ObjectMapper mapper = new ObjectMapper().findAndRegisterModules();
  6.     return new Jackson2JsonMessageConverter(mapper);
  7. }

在此更新之后，您不需要使用“JsonSerialize”注解。

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赞(0）分享  回复(0）举报  2022-11-09
piv4azn7

piv4azn72#

对于任何还在寻找答案的人，他们可以在他们的应用程序中复制粘贴：）
下面的代码要求spring注入其默认的对象Map器，然后要求它注册类路径中的所有模块。因此，请确保您在pom或gradle文件中包含了“com.fasterxml.jackson.datatype：jackson-datatype-jsr 310”。

  1. @Configuration
  2.     @Slf4j
  3.     public class SpringInternalObjectMapperConfig {
  5.         /*
  6.         Java 8 date/time type `java.time.LocalDateTime` not supported by default:
  7.          add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling
  9.          */
  11.         @Bean
  12.         public Jackson2JsonMessageConverter messageConverter(ObjectMapper springInternalObjectMapper) {
  13.             log.info("Updating spring's object mapper.");
  14.             springInternalObjectMapper.findAndRegisterModules();
  15.             return new Jackson2JsonMessageConverter(springInternalObjectMapper);
  16.         }
  18.     }
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