NoClassDefFoundError

问题:报错的代码如下:

1. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0' defined in class path resource [spring-mvc.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/JsonProcessingException

原因:缺少jar包

解决办法:在pom里面导入

1. <dependency>
2. <groupId>com.fasterxml.jackson.core</groupId>
3. <artifactId>jackson-databind</artifactId>
4. <version>2.7.4</version>
5. </dependency>
6. <dependency>
7. <groupId>com.fasterxml.jackson.core</groupId>
8. <artifactId>jackson-core</artifactId>
9. <version>2.7.4</version>
10. </dependency>
11. <dependency>
12. <groupId>com.fasterxml.jackson.core</groupId>
13. <artifactId>jackson-annotations</artifactId>
14. <version>2.7.4</version>
15. </dependency>