com.fasterxml.jackson.databind.exc.InvalidFormatException：无法从字符串“7:45PM”反序列化“java.time.LocalTime”类型的值

问题描述 投票：0回答：1

我将我的java项目升级到jdk17，spring 6.1和springboot 3.3

我得到了

Caused by: com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `java.time.LocalTime` from String "7:45PM": Failed to deserialize java.time.LocalTime: (java.time.format.DateTimeParseException) Text '7:45PM' could not be parsed at index 4

修复我的junits时出错

可重现的代码-

     public static ObjectMapper getObjectMapper() {
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.registerModule(new JavaTimeModule());
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        objectMapper.configure(DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES, false);
        objectMapper.configure(DeserializationFeature.FAIL_ON_NULL_CREATOR_PROPERTIES, false);
        objectMapper.configure(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS, true);
        return objectMapper;
    }
    
    public static <T> T getJsonFixtureFromString(String jsonString, Class<T> clazz) {
        return getObjectMapper().readValue(jsonString, clazz);
    }
    
    @Test
    public void myTest(){
        String s = "{\"name\":\"Evening Restriction\",\"restrictions\":[{\"starttime\":\"7:45PM\",\"endtime\":\"8:15PM\"}]}"
        
        RestrictProfileDTO dto = getJsonFixtureFromString(s, RestrictProfileDTO.class);
    }

@JsonInclude(JsonInclude.Include.NON_NULL)
public class RestrictProfileDTO {
    @JsonProperty(value = "name")
    private String name;
    
    @JsonProperty(value = "restrictions")
    private List<RestrictionDTO> restrictions;
    
}

@JsonInclude(JsonInclude.Include.NON_NULL)
public class RestrictionDTO {
    @JsonProperty(value = "starttime")
    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "h:mma")
    private LocalTime startTime;
    
    @JsonProperty(value = "endtime")
    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "h:mma")
    private LocalTime endTime;
}

完整日志-

java.lang.RuntimeException: Can't create class RestrictProfileDTO from json {"name":"Evening Restriction","restrictions":[{"restrict_day":"2","starttime":"7:45PM","endtime":"8:15PM"}]} .
    at TestUtils.getJsonFixtureFromString(TestUtils.java:79)
    at CallMenuRestrictionResourceTest.testCreateProfileBadRequestIllegalArgumentException(CallMenuRestrictionResourceTest.java:110)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:76)
    at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
    at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
    at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:108)
    at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58)
    at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:40)
    at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:60)
    at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:52)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
    at jdk.proxy2/jdk.proxy2.$Proxy5.processTestClass(Unknown Source)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker$2.run(TestWorker.java:176)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
    at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
    at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113)
    at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65)
    at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
    at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
Caused by: com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `java.time.LocalTime` from String "7:45PM": Failed to deserialize java.time.LocalTime: (java.time.format.DateTimeParseException) Text '7:45PM' could not be parsed at index 4
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 130] (through reference chain: RestrictProfileDTO["restrictions"]->java.util.ArrayList[0]->RestrictionDTO["starttime"])
    at com.fasterxml.jackson.databind.exc.InvalidFormatException.from(InvalidFormatException.java:67)
    at com.fasterxml.jackson.databind.DeserializationContext.weirdStringException(DeserializationContext.java:1958)
    at com.fasterxml.jackson.databind.DeserializationContext.handleWeirdStringValue(DeserializationContext.java:1245)
    at com.fasterxml.jackson.datatype.jsr310.deser.JSR310DeserializerBase._handleDateTimeException(JSR310DeserializerBase.java:176)
    at com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer._fromString(LocalTimeDeserializer.java:195)
    at com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer.deserialize(LocalTimeDeserializer.java:109)
    at com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer.deserialize(LocalTimeDeserializer.java:37)
    at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:129)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:310)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:177)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer._deserializeFromArray(CollectionDeserializer.java:361)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:246)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:30)
    at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:129)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:399)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:185)
    at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:342)
    at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4905)
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3848)
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3816)
    at TestUtils.getJsonFixtureFromString(TestUtils.java:77)
    ... 52 more
Caused by: java.time.format.DateTimeParseException: Text '7:45PM' could not be parsed at index 4
    at java.base/java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:2052)
    at java.base/java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1954)
    at java.base/java.time.LocalTime.parse(LocalTime.java:465)
    at com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer._fromString(LocalTimeDeserializer.java:193)
    ... 68 more

我使用的是 com.fasterxml.jackson.core 2.16.0 版本，我将其更改为最新稳定版本 2.17.0，但错误仍然没有解决。我预计也许更高版本可以兼容jdk17。但错误并没有解决。

当我将传递给 getJsonFixtureFromString() 方法的字符串中的大写 PM 更改为小 pm 时，错误得到解决。但如何在不更改字符串的情况下解决这个问题。

在jdk11中没有出现这个错误。

java spring spring-boot junit fasterxml
1个回答
0
投票

您可以尝试创建自定义解串器。

@JsonDeserialize(using = CaseInsensitiveLocalTimeDeserializer.class)
@JsonProperty(value = "starttime")
private LocalTime startTime;

@JsonDeserialize(using = CaseInsensitiveLocalTimeDeserializer.class)
@JsonProperty(value = "endtime")
private LocalTime endTime;

与：

public class CaseInsensitiveLocalTimeDeserializer extends JsonDeserializer<LocalTime> {

    private final DateTimeFormatter formatter;

    public CaseInsensitiveLocalTimeDeserializer() {
        this.formatter = DateTimeFormatter.ofPattern("h:mma").withLocale(Locale.ENGLISH);
    }

    @Override
    public LocalTime deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
        String timeStr = p.getText().toUpperCase();  // Convert to upper case to handle AM/PM consistently
        try {
            return LocalTime.parse(timeStr, formatter);
        } catch (DateTimeParseException e) {
            throw new InvalidFormatException(p, "Failed to parse time", timeStr, LocalTime.class);
        }
    }
}

添加解串器时映射器看起来像这样。

public static ObjectMapper getObjectMapper() {
    ObjectMapper objectMapper = new ObjectMapper();
    JavaTimeModule javaTimeModule = new JavaTimeModule();
    javaTimeModule.addDeserializer(LocalTime.class, new CaseInsensitiveLocalTimeDeserializer());
    objectMapper.registerModule(javaTimeModule);
    // Other configurations...
    return objectMapper;
}
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