Tip: After the article is written, the table of contents can be automatically generated. For how to generate it, please refer to the help document on the right. Table of Contents 1. The error is reported as follows 2. Investigation direction Summarize 1. The error is reported as follows 2023-08-25 19:28:14.211|ERROR|main||||org.springframework.boot.SpringApplication.reportFailure[826]|Application run failed org.springframework.beans.factory.BeanCreationException: Error […]
Tag: fasterxml
com.fasterxml.jackson json tool class
Step 1: Citation implementation group: ‘com.fasterxml.jackson.core’, name: ‘jackson-core’, version: ‘2.13.3’ implementation group: ‘com.fasterxml.jackson.core’, name: ‘jackson-databind’, version: ‘2.13.3’ implementation group: ‘com.fasterxml.jackson.core’, name: ‘jackson-annotions’, version: ‘2.13.3’ com.fasterxml.jackson tool class Older versions of Jackson used the package name org.codehaus.jackson, while newer versions use com.fasterxml.jackson. Jackson mainly includes 3 modules: jackson-core jackson-annotations jackson-databind Among them, jackson-annotations depends on jackson-core, […]
com.fasterxml.jackson.databind.JsonMappingException: Undeclared general entity “mdash” ultimate solution
Questions When using jackson’s xml conversion object tool class, there are special characters in xml, jackson fails to recognize and convert, and reports an error! ! ! Reason According to XML, XML processors are not guaranteed to process the external DTD subset referenced in the DOCTYPE. This means, for example, that using entity references for […]
com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError)
When embedding RabbitMQ in the project, the following error occurred: com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError) (through reference chain: java.lang.reflect.Parameter[“declaringExecutable”] -> java.lang.reflect.Method[“parameters”] -> java.lang.reflect.Parameter[0] -> java.lang.reflect.Parameter[“declaringExecutable”] -> java.lang.reflect.Method[“parameters”] -> java.lang.reflect.Parameter[0] -> java.lang.reflect.Parameter[“declaringExecutable”] -> java.lang.reflect.Method[“parameters”] -> java.lang.reflect.Parameter[0] -> java.lang.reflect.Parameter[“declaringExecutable”] -> java.lang.reflect.Method[“parameters”] -> java.lang.reflect.Parameter[0] -> java.lang.reflect.Parameter[“declaringExecutable”] -> java.lang.reflect.Method[“parameters”] -> java.lang.reflect.Parameter[0] -> java.lang.reflect.Parameter[“declaringExecutable”] -> java.lang.reflect.Method[“parameters”] -> java.lang.reflect.Parameter[0] -> java.lang.reflect.Parameter[“declaringExecutable”] -> […]
[fasterxml.jackson] field deserialization problem Access.WRITE_ONLY
Description of problem: In the RESTful interface based on Spring MVC, When the field of request parameter Bean or return entity class in the interface is constrained by @JsonProperty(access = Access.WRITE_ONLY), call the rest interface through postman to get the field It can be a value, that is, get/set is no problem. When called through […]
Request webservice services through httpClient and splicing xml and use fasterxml jackson to parse them into objects
Table of Contents foreword Get the xml message Use httpClient call Use fastermxl jackson to parse into objects Foreword At present, there are still some SAP services. The last article is the method of using hutool to call webservice using hutool to call webservice tutorial. This article explains the method of using httpClient to call […]
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hib
Let’s make a summary based on several situations that have arisen: Type ①: java.util.HashMap[“data”]->com.dahaiwuliang.code.entity.Link$HibernateProxy$fyF6XRkV[“hibernateLazyInitializer”]) The focus is here: java.util.HashMap[“data”]-> Solution: @Proxy(lazy = false) com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_ EMPTY_BEANS) (through reference chain: java.util.HashMap[“data”]->com.dahaiwuliang.code.entity.Link$HibernateProxy$fyF6XRkV[“hibernateLazyInitializer”]) at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:77) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1300) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:400) […]
springboot+jpa exception com.fasterxml.jackson.databind.exc.InvalidDefinitionException
Error message com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY) (th_ reference chain: com.bdqn.pojo.Test_$$_jvst586_0[“handler”]) at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:77) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1191) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:312) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.failForEmpty(UnknownSerializer.java:71) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.serialize(UnknownSerializer.java:33) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:727) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:719) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:155) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480) ~[jackson-databind-2.9.5.jar:2.9.5] at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319) ~[jackson-databind-2.9.5.jar:2.9.5] […]
java error: Caused by: fasterxml.jackson.core.JsonParseException: Unexpected character (‘c’ (code 99))
Occurrence: When using Swagger or postman to send a post request with request parameters: Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character (‘c’ (code 99)): was expecting double-quote to start field name Original error message: 2023-04-03 21:42:04,131 DEBUG (GlobalExceptionHandler.java:62)- Caught Throwable: JSON parse error: Unexpected character (‘c’ (code 99)): was expecting double-quote to start field name; nested exception […]
java error: Caused by: fasterxml.jackson.core.JsonParseException: Unexpected character(} (code 125))
Occurrence: When using Swagger or postman to send a post request with request parameters: Error description: Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character (‘}’ (code 125)): was expecting double-quote to start field name Original error message: 2023-04-03 08:46:27,030 DEBUG (GlobalExceptionHandler.java:62)- Caught Throwable: JSON parse error: Unexpected character (‘}’ (code 125)): was expecting double-quote to start field name; […]