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  • Springmvc 中org.springframework.http.converter.json.MappingJackson2HttpMessageConverter依赖jackson包

    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>
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  • 原文地址:https://www.cnblogs.com/lonecloud/p/7422425.html
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