Spring 2.0.0-迁移给出错误：NoClassDefFoundError:com/jayway/jsonpath/spi/mapper/JacksonMappingProvider

将我的Spring Boot 1.4.3版本应用程序迁移到Spring Boot 2.0.0时。我得到这个错误：

NoClassDefFoundError： com/jayway/jsonpath/spi/mapper/JacksonMappingProvider

Spring引导父级具有2.0.0版本。jsonpath jayway具有2.2.0版本

对于我使用的Jsonpath。我想扫描JSON的一部分，而不是将整个JSON字符串映射到对象。。。在这种情况下

import net.minidev.json.JSONArray;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONValue;

我做错了什么

已解决：有两个问题：

感谢@Barath——SpringBoot2.0.0的json路径至少需要2.4.0版本，请参见下文

在将源部件升级到SpringBoot2.0.0时，我忘记删除SpringBootStarter测试的旧版本规范 我的pom.xml是：

<project xmlns="http://maven.apache.org/POM/4.0.0" 
standard init

  <!-- Use parent POM.xml -->
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
   <version>2.0.0.RELEASE</version>
    <relativePath/>
  </parent>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <maven-jaxb2-plugin.version>0.13.3</maven-jaxb2-plugin.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter</artifactId>
      <exclusions>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-logging</artifactId>
        </exclusion>
      </exclusions>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <exclusions>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-rest</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <!-- Chat websocket stuff -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-websocket</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-reactor-netty</artifactId>
    </dependency>

    <!-- logging -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.datatype</groupId>
      <artifactId>jackson-datatype-jsr310</artifactId>
    </dependency>

    <!-- Database for Openshift -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.40</version>
    </dependency>

    <dependency>
      <groupId>io.jsonwebtoken</groupId>
      <artifactId>jjwt</artifactId>
      <version>0.9.0</version>
    </dependency>

    <!-- JSON path -->
    <dependency>
      <groupId>com.jayway.jsonpath</groupId>
      <artifactId>json-path</artifactId>
      <version>2.2.0</version>
    </dependency>
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpclient</artifactId>
      <version>4.5.6</version>
    </dependency>
    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <!--<version>1.9</version>-->
      <version>1.10</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.security</groupId>
      <artifactId>spring-security-crypto</artifactId>
      <!--<version>4.2.3.RELEASE</version>-->
    </dependency>

    <!-- TESTING -->

  </dependencies>

  <build>
    <finalName>geosolutions</finalName>
    <plugins>

      <plugin>
        <artifactId>maven-clean-plugin</artifactId>
        <version>3.0.0</version>
        <configuration>
          <filesets>
            <fileset>
              <directory>src/main/webapp/</directory>
            </fileset>
          </filesets>
        </configuration>
      </plugin>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.6</version>
        <configuration>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>1.6.0</version>
        <executions>
          <execution>
            <id>npm install</id>
            <goals>
              <goal>exec</goal>
            </goals>
            <phase>initialize</phase>
            <configuration>
              <executable>npm</executable>
              <arguments>
                <argument>install</argument>
              </arguments>
            </configuration>
          </execution>
          <execution>
            <id>build Angular production code</id>
            <goals>
              <goal>exec</goal>
            </goals>
            <phase>compile</phase>
            <configuration>
              <executable>npm</executable>
              <arguments>
                <argument>run</argument>
                <argument>build</argument>
                <argument>--prod</argument>
              </arguments>
            </configuration>
          </execution>
        </executions>
      </plugin>

      <!-- for testing -->
      <...>
    </plugins>
  </build>
</project>

作为SpringBoot2.0.0.RELEASE的一部分，要使用的json路径版本是
2.4.0

   <dependency>
      <groupId>com.jayway.jsonpath</groupId>
      <artifactId>json-path</artifactId>
      <version>2.4.0</version>
    </dependency>


com.jayway.jsonpath
json路径
2.4.0
spring boot测试依赖性如何？跳过测试时？Jsonpath是spring boot starter测试的一部分，不是吗？您是否需要明确定义的其他用途？是的，我使用以下类：import net.minidev.json.JSONArray；导入net.minidev.json.JSONObject；导入net.minidev.json.JSONValue；正如我在pom spring boot 2.0.0.RELEASE中检查的那样。提到的json路径是
2.4.0
。你能把它改成2.4.0再试试吗？