无法从 String 反序列化 java.time.LocalDateTime 类型的值
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Can not deserialize value of type java.time.LocalDateTime from String
提问by gstackoverflow
I have following configuration:
我有以下配置：
@Bean
@Primary
public ObjectMapper objectMapper(Hymanson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.createXmlMapper(false).build();
objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
// objectMapper.configure(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
return objectMapper;
}
and following dependencies:
以及以下依赖项：
ext {
springBootVersion = '1.5.2.RELEASE'
}
....
dependencies {
compile('org.springframework.boot:spring-boot-starter-websocket')
compile("org.springframework:spring-messaging")
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-starter-thymeleaf')
compile('org.springframework.boot:spring-boot-starter-validation')
compile('org.springframework.boot:spring-boot-starter-web')
compile group: 'net.jcip', name: 'jcip-annotations', version: '1.0'
compile ("com.fasterxml.Hymanson.datatype:Hymanson-datatype-jsr310")
testCompile('org.springframework.boot:spring-boot-starter-test')
}
I added the following controller:
我添加了以下控制器：
@PostMapping("/validation_test")
public String testValidation(@Valid @RequestBody ClientInputMessage clientInputMessage, BindingResult result) {
logger.info(Arrays.toString(result.getAllErrors().toArray()));
return "main";
}
public class ClientInputMessage {
@NotEmpty
private String num1;
@NotEmpty
private String num2;
@Past
private LocalDateTime date;
If I pass json like this:
如果我像这样传递json：
{
"num1":"324",
"num2":123,
"date":"2014-01-01"
}
application prints following output:
应用程序打印以下输出：
Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Can not deserialize value of type java.time.LocalDateTime from String "2014-01-01": Text '2014-01-01' could not be parsed at index 10
at [Source: java.io.PushbackInputStream@1204f40f; line: 4, column: 8] (through reference chain: model.ClientInputMessage["date"]); nested exception is com.fasterxml.Hymanson.databind.exc.InvalidFormatException: Can not deserialize value of type java.time.LocalDateTime from String "2014-01-01": Text '2014-01-01' could not be parsed at index 10
at [Source: java.io.PushbackInputStream@1204f40f; line: 4, column: 8] (through reference chain: model.ClientInputMessage["date"])
回答by Jure Kolenko
Original answer:
原答案：
LocalDateTime in java does not accept "2014-01-01" as a valid date string.
Java 中的 LocalDateTime 不接受“2014-01-01”作为有效的日期字符串。
Some additional info:
一些额外的信息：
If you don't actually care what type your date is (LocalDate, OffsetDate, ZonedDate, ...), you can make it a TemporalAccessor, then use DateTimeFormatter::parseBestto parse the date.
如果您实际上并不关心您的日期是什么类型（LocalDate、OffsetDate、ZonedDate...），您可以将其设为TemporalAccessor，然后使用DateTimeFormatter::parseBest来解析日期。
P.S.
string "2014-01-01T00:00:00" will be valid for LocalDateTime
PS
字符串“2014-01-01T00:00:00”对 LocalDateTime 有效
