Google Cloud Endpoints Framework 2(Java)错误含义和来源?
问题描述:
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>
答
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>
这是Java 8或7运行时? – saiyr