我的问题就是版本冲突的问题以前的spring版本是 5.1.5.RELEASE
改成 4.3.3.RELEASE就不报错了

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.haishi</groupId>
  <artifactId>springmaven</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>springmaven Maven Webapp</name>
  <url>http://maven.apache.org</url>
			  <dependencies>
			    <dependency>
			      <groupId>junit</groupId>
			      <artifactId>junit</artifactId>
			      <version>4.10</version>
			    </dependency>
    <!-- spring的相关架包 -->
			<dependency>
			    <groupId>org.springframework</groupId>
			    <artifactId>spring-webmvc</artifactId>
			    <version>4.3.3.RELEASE</version>
			</dependency>
			
		    <!-- 引入Json容器相关的jar包 -->
		    <dependency>
		      <groupId>com.fasterxml.jackson.core</groupId>
		      <artifactId>jackson-core</artifactId>
		      <version>2.8.4</version>
		    </dependency>
		    
		    <dependency>
		      <groupId>com.fasterxml.jackson.core</groupId>
		      <artifactId>jackson-annotations</artifactId>
		      <version>2.8.0</version>
		    </dependency>
		    
		    <dependency>
		      <groupId>com.fasterxml.jackson.core</groupId>
		      <artifactId>jackson-databind</artifactId>
		      <version>2.8.4</version>
		    </dependency>	
			
  </dependencies>
  <build>
    <finalName>springmaven</finalName>
  </build>
</project>