1,问题详情：Spring使用4.3.5.Release版本后
在SpringMvc配置文件中配置json 解析器后出现报错信息
[org.springframework.web.context.ContextLoader]Context initialization failed
org.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 bean with name ‘org.springframework.http.converter.json.MappingJacksonHttpMessageConverter#2aa148c0‘
... ...
Caused by: java.lang.ClassNotFoundException: org.springframework.http.converter.json.MappingJacksonHttpMessageConverter
... ...
2.原因：
Spring4.0后jackson依赖包不一样导致
3.解决方案
Spring 4.x.x版本后使用org.springframework.http.converter.json.MappingJackson2HttpMessageConverter所对应的jar
在maven配置jackson依赖包
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> 10 </dependency> 11 <dependency> 12 <groupId>com.fasterxml.jackson.core</groupId> 13 <artifactId>jackson-annotations</artifactId> 14 <version>2.8.5</version> 15 </dependency>
Spring 3.x.x版本后使用org.springframework.http.converter.json.MappingJacksonHttpMessageConverter
所依赖的jackson包
1 <dependency> 2 <groupId>org.codehaus.jackson</groupId> 3 <artifactId>jackson-mapper-asl</artifactId> 4 <version>1.9.13</version> 5 </dependency>
Springmvc 中org.springframework.http.converter.json.MappingJackson2HttpMessageConverter依赖jackson包
原文：http://www.cnblogs.com/lonecloud/p/7422425.html