解决日期转化Json异常-DateJSONparseerror

日期转化Json异常- Date JSON parse error 1、做JUnit功能测试的时候抛出如下异常 org.springframework.web.client.RestClientException: Error while extracting response for type [class com.imooc.entity.Product] and content type [application/json;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type `java.util.Date` from String "2018-10-19 21:33:16": not a valid representation (error: Failed to parse Date value '2018-10-19 21:33:16': Cannot parse date "2018-10-19 21:33:16": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSZ', parsing fails (leniency? null)); nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `java.util.Date` from String "2018-10-19 21:33:16": not a valid representation (error: Failed to parse Date value '2018-10-19 21:33:16': Cannot parse date "2018-10-19 21:33:16": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSZ', parsing fails (leniency? null)) at [Source: (PushbackInputStream); line: 1, column: 141] (through reference chain: com.imooc.entity.Product["createAt"]) at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:115) at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:689) at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:644) at org.springframework.web.client.RestTemplate.postForObject(RestTemplate.java:399) at com.imooc.util.RestUtil.postJSON(RestUtil.java:31) at com.imooc.controller.ProductControllerTest.lambda$0(ProductControllerTest.java:59) at java.util.ArrayList.forEach(Unknown Source) at com.imooc.controller.ProductControllerTest.testAddProduct(ProductControllerTest.java:58) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:73) at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:83) 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.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:325) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) 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.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)Caused by: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type `java.util.Date` from String "2018-10-19 21:33:16": not a valid representation (error: Failed to parse Date value '2018-10-19 21:33:16': Cannot parse date "2018-10-19 21:33:16": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSZ', parsing fails (leniency? null)); nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `java.util.Date` from String "2018-10-19 21:33:16": not a valid representation (error: Failed to parse Date value '2018-10-19 21:33:16': Cannot parse date "2018-10-19 21:33:16": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSZ', parsing fails (leniency? null)) at [Source: (PushbackInputStream); line: 1, column: 141] (through reference chain: com.imooc.entity.Product["createAt"]) at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:243) at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:225) at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:100) ... 39 moreCaused by: com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `java.util.Date` from String "2018-10-19 21:33:16": not a valid representation (error: Failed to parse Date value '2018-10-19 21:33:16': Cannot parse date "2018-10-19 21:33:16": while it seems to fit format 'yyyy-MM-dd'T'HH:mm:ss.SSSZ', parsing fails (leniency? null)) at [Source: (PushbackInputStream); line: 1, column: 141] (through reference chain: com.imooc.entity.Product["createAt"]) at com.fasterxml.jackson.databind.exc.InvalidFormatException.from(InvalidFormatException.java:67) at com.fasterxml.jackson.databind.DeserializationContext.weirdStringException(DeserializationContext.java:1548) at com.fasterxml.jackson.databind.DeserializationContext.handleWeirdStringValue(DeserializationContext.java:910) at com.fasterxml.jackson.databind.deser.std.StdDeserializer._parseDate(StdDeserializer.java:524) at com.fasterxml.jackson.databind.deser.std.StdDeserializer._parseDate(StdDeserializer.java:467) at com.fasterxml.jackson.databind.deser.std.DateDeserializers$DateBasedDeserializer._parseDate(DateDeserializers.java:195) at com.fasterxml.jackson.databind.deser.std.DateDeserializers$DateDeserializer.deserialize(DateDeserializers.java:285) at com.fasterxml.jackson.databind.deser.std.DateDeserializers$DateDeserializer.deserialize(DateDeserializers.java:268) at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:127) at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:369) at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159) at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3084) at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:237) ... 41 more 2、原因主要问题就是实体类的Date转化Json过程出现错误，请求数据格式为： 'yyyy-MM-dd HH:mm:ss',但是在接收到数据的时候，需要通过jackson把数据转化成userDto对象。 jackson转化的时候，默认的时间格式是 'yyyy-MM-dd'T'HH:mm:ss.SSS’,所以就会出现上面的异常。 3、解决方案解决JSON parse error: Cannot deserialize value of type `java.util.Date` from String 如题，这个错误是因为前端传的日期到后端之后不能解析解决办法在你的实体类中的 Date类型的变量上面加两个自动解析的注解，比如：由此传时间变量的时候前后端同事就可以开心的玩耍了~ 但是这是Date这个老类型，那JDK8之后的新日期类型LocalDate和新时间类型 LocalTime，会是什么效果？不知道，没试~ 总结以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。