springboot LocalDateTime 序列化、反序列化全局配置

缺乏、安全感 2023-02-27 10:32 1阅读 0赞

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### springboot LocalDateTime 序列化、反序列化全局配置 ###

**LocalDateTime按照自定义的格式进行序列化、反序列化**

## ##

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**示例**

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**pojo 层**

**Order**

@Data
    public class Order {
    
        private String orderId;
    
        @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
        private LocalDateTime orderTime;
    
        private Double price;
        private Integer amount;
    }

**\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**config 层**

**WebConfig**

@Configuration
    public class WebConfig {
    
        @Bean
        public ObjectMapper initObjectMapper(){
            ObjectMapper objectMapper=new ObjectMapper();
    
            JavaTimeModule javaTimeModule=new JavaTimeModule();
            javaTimeModule.addDeserializer(LocalDateTime.class,new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
            javaTimeModule.addSerializer(LocalDateTime.class,new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
                           //localDateTime按照 "yyyy-MM-dd HH:mm:ss"的格式进行序列化、反序列化
    
            objectMapper.registerModule(javaTimeModule);
    
            return objectMapper;
        }
    }

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**controller 层**

**HelloController**

@RestController
    public class HelloController {
    
        @RequestMapping("/hello")
        public LocalDateTime hello(@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") LocalDateTime localDateTime){
            System.out.println("hello ==> "+localDateTime);
    
            return localDateTime;
        }
    
        @RequestMapping("/hello2")
        public Order hello2(Order order){
            System.out.println("hello2 ==> "+order);
    
            return order;
        }
    
        @RequestMapping("/hello3")
        public Order hello3(@RequestBody Order order){
            System.out.println("hello3 ==> "+order);
    
            return order;
        }
    }

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**使用测试**

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**/hello**

**localhost:8080/hello?localDateTime=2020-08-06 09:08:06**

**设置全局配置输出：2020-08-09 08:06:09**

#控制台输出
    hello ==> 2020-08-09T08:06:09

**不设置全局配置输出：2020-08-09T08:06:09**

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**/hello2**

**localhost:8080/hello2?orderId=1&orderTime=2020-08-06 08:06:09&price=2&amount=8**

**设置全局配置输出**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzMTYyNQ_size_16_color_FFFFFF_t_70][]

#控制台输出
    hello2 ==> Order(orderId=1, orderTime=2020-08-06T08:06:09, price=2.0, amount=8)

**不设置全局配置输出**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzMTYyNQ_size_16_color_FFFFFF_t_70 1][]

**\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\***

**/hello3**

**localhost:8080/hello3，**

**header：Content-Type application/json**

**body：**

{
        "orderId": "2",
        "orderTime": "2020-08-09 08:06:09",
        "price": "2",
        "amount": "8"
    }

**设置全局配置输出**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzMTYyNQ_size_16_color_FFFFFF_t_70 2][]

#控制台输出
    hello3 ==> Order(orderId=1, orderTime=2020-08-09T08:06:09, price=2.0, amount=8)

**不设置全局配置，无法反序列化，可在LocalDateTime加注解@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzMTYyNQ_size_16_color_FFFFFF_t_70 3][]

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