Springmvc Org.springframework.http.converter.json.MappingJackson2HttpMessageConverter relies on the Jackson bag

1, problem details: Spring after using 4.3.5.Release version

Error message after configuring the JSON parser in the SPRINGMVC configuration file

[Org.springframework.web.context.ContextLoader] Context initialization failedorg.springframework.beans.factory.BeanCreationException:Error creating bean with Name ' Org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter#0 ' ... caused by:org.springframework.beans.factory.CannotLoadBeanClassException:Cannot Find class [ Org.springframework.http.converter.json.MappingJacksonHttpMessageConverter] for beans with name ' Org.springframework.http.converter.json.mappingjacksonhttpmessageconverter#2aa148c0 ' ... Caused by:java.lang.ClassNotFoundException: Org.springframework.http.converter.json.MappingJacksonHttpMessageConverter ...    

2. Reason:

Spring4.0 after Jackson dependency package is not the same cause

3. Solution

The jar corresponding to the org.springframework.http.converter.json.MappingJackson2HttpMessageConverter is used after the Spring 4.x.x version

Configuring the Jackson dependency package in Maven

1        <Dependency>2             <groupId>Com.fasterxml.jackson.core</groupId>3             <Artifactid>Jackson-core</Artifactid>4             <version>2.8.5</version>5         </Dependency>6         <Dependency>7             <groupId>Com.fasterxml.jackson.core</groupId>8             <Artifactid>Jackson-databind</Artifactid>9             <version>2.8.5</version>Ten         </Dependency> One         <Dependency> A             <groupId>Com.fasterxml.jackson.core</groupId> -             <Artifactid>Jackson-annotations</Artifactid> -             <version>2.8.5</version> the         </Dependency>

Use Org.springframework.http.converter.json.MappingJacksonHttpMessageConverter after Spring 3.x.x version

Depend on the Jackson bag

1         <Dependency>2             <groupId>Org.codehaus.jackson</groupId>3             <Artifactid>Jackson-mapper-asl</Artifactid>4             <version>1.9.13</version>5         </Dependency>

Springmvc Org.springframework.http.converter.json.MappingJackson2HttpMessageConverter relies on the Jackson bag