springboot LocalDateTime 反序列化-蒲公英云

springboot LocalDateTime 反序列化

@RequestBody读取pojo中LocalDateTime属性字段，字符串格式为”yyyy-MM-dd HHss”时反序列化失败

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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;
}

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controller 层

HelloController

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

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使用测试

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@RequestParam

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

hello ==> 2020-08-09T08:06:09

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

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

@RequestParam可正常操作LocalDateTime数据

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@RequestBody

localhost:8080/hello3

header： Content-Type ==> application/json

body：

            ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzMTYyNQ_size_16_color_FFFFFF_t_70][]

控制台输出


2020-07-16 17:33:54.416  WARN 10404 --- [nio-8080-exec-5] 
.w.s.m.s.DefaultHandlerExceptionResolver : Resolved 
[org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: 
Cannot deserialize value of type `java.time.LocalDateTime` from String "2020-08-09 
08:06:09": Failed to deserialize java.time.LocalDateTime: 
(java.time.format.DateTimeParseException) Text '2020-08-09 08:06:09' could not be parsed at 
index 10; nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: 
Cannot deserialize value of type `java.time.LocalDateTime` from String "2020-08-09 
08:06:09": Failed to deserialize java.time.LocalDateTime: 
(java.time.format.DateTimeParseException) Text '2020-08-09 08:06:09' could not be parsed at 
index 10
 at [Source: (PushbackInputStream); line: 3, column: 18] (through reference chain: 
com.example.demo.pojo.Order["orderTime"])]

localDateTime反序列化失败，不能将2020-08-09 08:06:09转换为localDateTime

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解决措施

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引入jar 包

<dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-jsr310</artifactId>
            <version>2.11.1</version>
        </dependency>

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pojo 层

Order

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

使用@JsonFormat读取输入参数进行序列化

#

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使用测试

localhost:8080/hello3

header： Content-Type ==> application/json

body：

            ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzMTYyNQ_size_16_color_FFFFFF_t_70 1][]

控制台输出

hello3 ==> Order(orderId=2, orderTime=2020-08-09T08:06:09, price=2.0, amount=8)

springboot LocalDateTime 反序列化