Google Cloud Endpoints Framework 2（Java）错误含义和来源？

迁移到框架2.使用Java 8.什么是下面的错误信息试图告诉我？我的类注释或web.xml有什么问题？我正在为其他servlet使用Servlets 3.1.0。这是否进入等式？Google Cloud Endpoints Framework 2（Java）错误含义和来源？

com.google.apphosting.runtime.jetty9.JettyLogger warn: 
    Error for /_ah/api/taxdochubapi/v1/taxdoc/retrievewithguid 
    (JettyLogger.java:29) 

java.lang.NoClassDefFoundError: 
    com/google/appengine/repackaged/com/google/common/base/Function 
    at com.google.api.server.spi.EndpointsServlet.init(EndpointsServlet.java:56) 
    at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:643) 
    at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:499) 
    ... 

// Relevant annotation 
@ApiMethod(name = "taxdocument.retrieve.withguid", 
      path = "taxdoc/retrievewithguid", 
      httpMethod = HttpMethod.GET) 
public Map<String, String> retrieveTaxDocForGuid(@Named("guid") String guid) { 

<!-- web.xml --> 
<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> 
    <servlet> 
     <servlet-name>EndpointsServlet</servlet-name> 
     <servlet-class>com.google.api.server.spi.EndpointsServlet</servlet-class> 
     <init-param> 
      <param-name>services</param-name> 
      <param-value>com.taxdochub.endpoints.spi.TaxDocHubApiDocuments</param-value> 
     </init-param> 
     <init-param> 
      <param-name>restricted</param-name> 
      <param-value>false</param-value> 
     </init-param> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>EndpointsServlet</servlet-name> 
     <url-pattern>/_ah/api/*</url-pattern> 
    </servlet-mapping> 
    <welcome-file-list> 
     <welcome-file>index.jsp</welcome-file> 
    </welcome-file-list> 
</web-app>

来源

2017-09-13 Bruce Wilcox

这是Java 8或7运行时？ – saiyr

该问题是由于我在我的pom.xml文件中留下v1依赖项导致的。删除以下依赖项后，它开始工作。

<dependency> 
     <groupId>com.google.appengine</groupId> 
     <artifactId>appengine-endpoints</artifactId> 
     <version>${appengineVersion}</version> 
    </dependency>

来源

2017-09-15 01:40:31

Google Cloud Endpoints Framework 2（Java）错误含义和来源？

回答

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