spring5.0.7.RELEASE配置jackson2.9.5

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概述

Jackson框架是基于Java平台的一套数据处理工具，被称为“最好的Java Json解析器”。

1、环境：

jdk版本：jdk1.8
spring版本：5.0.7.RELEASE

jackson版本：2.9.5

Tip:

常见错误：

严重: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter‘: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/exc/InvalidDefinitionException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1238)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1137)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:672)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:638)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:686)

原因：jackson当前版本与spring版本不兼容。

2、详细配置

1、pom.xml引入以下依赖：

    
    dependency>
      groupId>com.fasterxml.jackson.coregroupId>
      artifactId>jackson-annotationsartifactId>
      version>2.9.5version>
    dependency>
    dependency>
      groupId>com.fasterxml.jackson.coregroupId>
      artifactId>jackson-coreartifactId>
      version>2.9.5version>
    dependency>
    dependency>
      groupId>com.fasterxml.jackson.coregroupId>
      artifactId>jackson-databindartifactId>
      version>2.9.5version>
    dependency>

2、在springmvc-servlet.xml文件中，加入以下配置：

    
    mvc:annotation-driven>
        mvc:message-converters>
            
            bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
                property name = "supportedMediaTypes">
                    list>
                        value>text/html;charset=UTF-8value>
                        value>application/json;charset=UTF-8value>
                    list>
                property>
            bean>
            
            bean id="mappingJackson2HttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
                property name="supportedMediaTypes">
                    list>
                        value>text/html;charset=UTF-8value>
                        value>application/json;charset=UTF-8value>
                    list>
                property>
            bean>
        mvc:message-converters>
    mvc:annotation-driven>

spring5.0.7.RELEASE配置jackson2.9.5

标签：ons   tpm   fail   framework   color   lang   char   bsp   bind   

原文地址：https://www.cnblogs.com/amunamuna/p/9636229.html