Question

这通常是一件非常简单的事情，但我已经和它一起坐了很长时间并尝试了多个配置和git存储库，但无法让它工作。

我收到的错误如下：

SEVERE：将上下文初始化事件发送给侦听器的异常类的实例 org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException：错误用名字创建bean 'com.mangofactory.swagger.configuration.SpringSwaggerConfig＃0'：注入自动连接的依赖项失败;嵌套异常是 org.springframework.beans.factory.BeanCreationException：不能 autowire字段：private com.mangofactory.swagger.models.ModelProvider com.mangofactory.swagger.configuration.SpringSwaggerConfig.modelProvider; 嵌套异常是java.lang.NoClassDefFoundError： com / fasterxml / jackson / databind / ObjectMapper at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java:292）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean（AbstractAutowireCapableBeanFactory.java:1185）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:537）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:475）在 org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:304）在 org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:228）在 org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:300）在 org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:195）在 org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:703）在 org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:760）在 org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:482）在 org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:403）在 org.springframework.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:306）在 org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:106）在

此错误以某种方式连接，但不知道为什么它不起作用。尝试过MVN：干净并更新但它不起作用。

我的设置如下：

的src /主/ web应用/ WEB-INF /配置/休息服务-config.xml中：

<mvc:default-servlet-handler/>

<context:property-placeholder location="classpath:config/swagger.properties"/>

<!-- creates a controller at /api-docs from this uri, which serves swagger's raw documentation in JSON format. -->
<bean class="com.mangofactory.swagger.configuration.SpringSwaggerConfig" />

src / main / webapp / WEB-INF / Web xml：

    <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>Test Swagger</display-name>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
            /WEB-INF/config/rest-services-config.xml
        </param-value>
  </context-param>
 <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <servlet>
    <servlet-name>restservices</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value></param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>restservices</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>




</web-app>

的pom.xml

    <dependency>
<groupId>com.mangofactory</groupId>
<artifactId>swagger-springmvc</artifactId>
<version>0.9.4</version>

    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>${jackson.mapper.version}</version>
    </dependency>

<repositories>
    <repository>
      <id>jcenter-release</id>
      <name>jcenter</name>
      <url>http://oss.jfrog.org/artifactory/oss-release-local/</url>
    </repository>
</repositories>

并在项目中添加了所需的库。为什么我不能使用招摇？我之后想要添加swagger-ui，那还行吗？

感谢正手

Answer 1

对我而言，你的POM似乎缺少杰克逊依赖：

is java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper

Answer 2

我成功地解决了这个问题，但是出现了另一个更奇怪的错误。然而，这是解决方案：我将此添加到我的pom.xml文件中：

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.5.0</version>
</dependency>

将Swagger添加到Spring MVC项目（创建bean时出错）

2 个答案: