Spring Boot REST API和客户端-“；java.lang.NoClassDefFoundError:org/apache/http/impl/client/RequestWrapper"；

我们使用SpringBootRESTAPI和SpringBootClient使用Jackson序列化程序访问它

在客户端，我们可以看到以下错误：

“java.lang.NoClassDefFoundError:org/apache/http/impl/client/RequestWrapper”

这是因为httpclient/httpcore依赖项与Spring Boot 2.3.2.版本冲突吗？？ 正如，我们在“2.2.4.RELEASE”中没有出现此错误，但在spring boot版本升级后，以局部方式（每周两次）启动

客户端依赖项：

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
    </parent>

    <dependencies>

        <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-jetty</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        
        <!--  Logging Framework -->
        <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>
                  <exclusion>
                      <groupId>org.yaml</groupId>
                      <artifactId>snakeyaml</artifactId>
                  </exclusion>
              </exclusions>
        </dependency>

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

        <dependency>
          <groupId>com.lmax</groupId>
          <artifactId>disruptor</artifactId>
          <version>3.4.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-file</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>commons-io</groupId>
                    <artifactId>commons-io</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-integration</artifactId>
        </dependency>

        <dependency>
            <groupId>com.solacesystems</groupId>
            <artifactId>sol-jcsmp</artifactId>
            <version>[10,)</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
        </dependency>

        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
            <version>3.4.2</version>
        </dependency>
       
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-engine</artifactId>
            <version>5.3.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-junit-jupiter</artifactId>
            <version>2.23.0</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>2.21.0</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
        </dependency>

        <dependency>
            <groupId>com.googlecode.json-simple</groupId>
            <artifactId>json-simple</artifactId>
            <version>1.1.1</version>
        </dependency>

    </dependencies>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
    </parent>

    <dependencies>

        <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-jetty</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        
        <!--  Logging Framework -->
        <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>
                  <exclusion>
                      <groupId>org.yaml</groupId>
                      <artifactId>snakeyaml</artifactId>
                  </exclusion>
              </exclusions>
        </dependency>

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

        <dependency>
          <groupId>com.lmax</groupId>
          <artifactId>disruptor</artifactId>
          <version>3.4.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

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

        <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>
            <exclusion>
              <groupId>org.yaml</groupId>
              <artifactId>snakeyaml</artifactId>
            </exclusion>
          </exclusions>
        </dependency>

    </dependencies>

org.springframework.boot
spring启动程序父级
2.3.2.2发布
org.springframework.boot
SpringBootStarterWeb
org.springframework.boot
弹簧启动机tomcat
org.springframework.boot
弹簧靴起动器码头
org.apache.httpcomponents
httpclient
org.projectlombok
龙目
真的
假如
com.fasterxml.jackson.core
杰克逊数据绑定
${jackson.version}
org.springframework.boot
弹簧起动试验
测试
org.springframework.boot
弹簧靴起动器
org.springframework.boot
spring启动程序日志记录
org.yaml
毒蛇
org.springframework.boot
spring-boot-starter-log4j2
com.lmax
破坏者
3.4.2
org.springframework.boot
弹簧启动机aop
org.springframework.integration
spring集成文件
公地io
公地io
org.springframework.boot
spring boot启动器集成
com.solacesystems
溶胶jcsmp
[10,)
org.springframework.retry
春季重试
com.lmax
破坏者
3.4.2
org.junit.jupiter
朱尼特木星发动机
5.3.1
测试
org.mockito
莫基托朱庇特酒店
2.23.0
测试
org.mockito
莫基托磁芯
2.21.0
测试
org.apache.httpcomponents
httpclient
org.apache.httpcomponents
httpcore
com.googlecode.json-simple
简单json
1.1.1

REST API依赖项：

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
    </parent>

    <dependencies>

        <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-jetty</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        
        <!--  Logging Framework -->
        <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>
                  <exclusion>
                      <groupId>org.yaml</groupId>
                      <artifactId>snakeyaml</artifactId>
                  </exclusion>
              </exclusions>
        </dependency>

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

        <dependency>
          <groupId>com.lmax</groupId>
          <artifactId>disruptor</artifactId>
          <version>3.4.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-file</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>commons-io</groupId>
                    <artifactId>commons-io</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-integration</artifactId>
        </dependency>

        <dependency>
            <groupId>com.solacesystems</groupId>
            <artifactId>sol-jcsmp</artifactId>
            <version>[10,)</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
        </dependency>

        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
            <version>3.4.2</version>
        </dependency>
       
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-engine</artifactId>
            <version>5.3.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-junit-jupiter</artifactId>
            <version>2.23.0</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>2.21.0</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
        </dependency>

        <dependency>
            <groupId>com.googlecode.json-simple</groupId>
            <artifactId>json-simple</artifactId>
            <version>1.1.1</version>
        </dependency>

    </dependencies>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
    </parent>

    <dependencies>

        <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-jetty</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        
        <!--  Logging Framework -->
        <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>
                  <exclusion>
                      <groupId>org.yaml</groupId>
                      <artifactId>snakeyaml</artifactId>
                  </exclusion>
              </exclusions>
        </dependency>

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

        <dependency>
          <groupId>com.lmax</groupId>
          <artifactId>disruptor</artifactId>
          <version>3.4.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

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

        <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>
            <exclusion>
              <groupId>org.yaml</groupId>
              <artifactId>snakeyaml</artifactId>
            </exclusion>
          </exclusions>
        </dependency>

    </dependencies>

org.springframework.boot
spring启动程序父级
2.3.2.2发布
org.springframework.boot
SpringBootStarterWeb
org.springframework.boot
弹簧启动机tomcat
org.springframework.boot
弹簧靴起动器码头
org.apache.httpcomponents
httpclient
org.projectlombok
龙目
真的
假如
com.fasterxml.jackson.core
杰克逊数据绑定
${jackson.version}
org.springframework.boot
弹簧起动试验
测试
org.springframework.boot
弹簧靴起动器
org.springframework.boot
spring启动程序日志记录
org.yaml
毒蛇
org.springframework.boot
spring-boot-starter-log4j2
com.lmax
破坏者
3.4.2
org.springframework.boot
弹簧启动机aop
org.springframework.boot
spring引导启动器数据jpa
org.springframework.boot
弹簧靴起动器
org.springframework.boot
spring启动程序日志记录
org.yaml
毒蛇