如何使用Jersey为REST Web服务中的服务类指定多个包名称 [英] How to specify multiple package names for service classes in REST web service using Jersey

问题描述

如何在servlet的<init-param>标签下为给定的<param-name>指定多个<param-value>.以下是我的web.xml文件:

How do I specify multiple <param-value> for a given <param-name> under servlet's <init-param> tag. Following is my web.xml file:

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>com.vogella.jersey.first</display-name>
 <servlet>
    <servlet-name>Jersey REST Service</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
     <!-- Register resources and providers under com.vogella.jersey.first package. -->
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.vogella.jersey.first</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Jersey REST Service</servlet-name>
    <url-pattern>/rest/*</url-pattern>
  </servlet-mapping>
</web-app> 

参数 jersey.config.server.provider.packages 定义了Jersey将在哪个程序包中查找Web服务类.

The parameter jersey.config.server.provider.packages defines in which package Jersey will look for the web service classes.

我想在这里指定多个程序包名称，因为我的服务类位于不同的程序包中.如下所示，但它们都不起作用:

I want to specify multiple package names here, as my service classes are in different packages. Something like following, but none of them works:

1)多个<param-value>

<init-param>
    <param-name>jersey.config.server.provider.packages</param-name>
    <param-value>com.vogella.jersey.first</param-value>
    <param-value>com.vogella.jersey.second</param-value>
</init-param>

2)多个<init-param>

<servlet>
    ...
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.vogella.jersey.first</param-value>
    </init-param>
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.vogella.jersey.second</param-value>
    </init-param>

我该怎么做?

推荐答案

您不能为单个<param-name>指定多个<param-value>.

you can't specify multiple <param-value> for a single <param-name>.

改为使用此:

<init-param>
    <param-name>jersey.config.server.provider.packages</param-name>
    <param-value>com.pack.first;com.pack.rest.second</param-value>
</init-param>

;，,可用作分隔符.

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