当前位置 博文首页 > 莫忘、初心：karaf + osgi + servlet 发布rest服务
kara容器搭建: https://blog.csdn.net/zhaosongbin/article/details/88393574
karaf+osgi+maven基础框架搭建: https://blog.csdn.net/zhaosongbin/article/details/88570841
karaf+osgi+servlet 本文项目下载地址: https://download.csdn.net/download/zhaosongbin/11022245
maven:
javax.ws.rs-api
osgi或者是karaf:
http-whiteboard
aries-jax-rs-whiteboard
首先在先前的基础框架上边新建maven项目 karaf-osgi-servlet
注意打包方式,osgi项目的打包方式不是我们常用的war或者jar,而是bundle
<packaging>bundle</packaging>
因为打包方式是bundle,所以必须要加上maven-bundle-plugin插件
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>karaf-osgi</artifactId>
<groupId>com.karaf.osgi</groupId>
<version>1.0.0</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.karaf.osgi</groupId>
<artifactId>karaf-osgi-servlet</artifactId>
<!--打包方式必须是bundle,有可能在pom中bundle打包方式会报错,
此时在下方插件maven-bundle-plugin中添加<extensions>true</extensions>-->
<packaging>bundle</packaging>
<name>Karaf :: Osgi :: Servlet</name>
<dependencies>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>osgi.cmpn</artifactId>
<version>6.0.0</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.1</version>
</dependency>
</dependencies>
<build>
<!--feature.xml 所需,可以提出来单独作为一个服务，如果提取出来，在此pom中删除-开始-->
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<targetPath>${project.build.directory}/resources</targetPath>
</resource>
</resources>
<!--feature.xml 所需,可以提出来单独作为一个服务，如果提取出来，在此pom中删除-结束-->
<plugins>
<!--feature.xml 所需,可以提出来单独作为一个服务，如果提取出来，在此pom中删除-开始-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>resources</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<id>attach-artifacts</id>
<phase>package</phase>
<goals>
<goal>attach-artifact</goal>
</goals>
<configuration>
<artifacts>
<artifact>
<file>target/resources/feature.xml</file>
<type>xml</type>
</artifact>
</artifacts>
</configuration>
</execution>
</executions>
</plugin>
<!--feature.xml 所需,可以提出来单独作为一个服务，如果提取出来，在此pom中删除-结束-->
<plugin>
<!--bundle打包方式需要用的插件,为了实现osgi的服务-->
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<configuration>
<instructions>
<Import-Package>
*
</Import-Package>
<Private-Package>
<!--项目中类所在的根目录-->
com.karaf.osgi.servlet
</Private-Package>
</instructions>
</configuration>
</plugin>
</plugins>
</build>
</project>
在java目录下新建根目录文件夹: com.karaf.osgi.servlet
在根目录下新建java文件:TestServlet.java
@path("")中就是我们需要访问的路径
package com.karaf.osgi.servlet;
import org.osgi.service.component.annotations.Component;
import javax.ws.rs.*;
@Path("/test")
@Component(service = TestServlet.class, property = {"osgi.jaxrs.resource=true"})
public class TestServlet {
@Path("/hello")
@Produces("application/json")
@GET
public String hello() {
return "hello";
}
@Path("/test")
@Consumes("application/json")
@POST
public String test() {
return "test";
}
}
在resource目录下新建文件:feature.xml
osgi服务运行需要的依赖
<feature>http-whiteboard</feature>
<feature>aries-jax-rs-whiteboard</feature>
<?xml version="1.0" encoding="UTF-8"?>
<features name="karaf-osgi-servlet-feature-${project.version}"
xmlns="http://karaf.apache.org/xmlns/features/v1.4.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://karaf.apache.org/xmlns/features/v1.4.0">
<feature name="karaf-osgi-servlet" version="${project.version}">
<feature>http-whiteboard</feature>
<feature>aries-jax-rs-whiteboard</feature>
<bundle>mvn:${project.groupId}/karaf-osgi-servlet/${project.version}</bundle>
</feature>
</features>
karaf@root()> feature:repo-add mvn:com.karaf.osgi/karaf-osgi-servlet/1.0.0/xml
Adding feature url mvn:com.karaf.osgi/karaf-osgi-servlet/1.0.0/xml
karaf@root()> feature:install karaf-osgi-servlet
karaf@root()> http:list
ID │ Servlet │ Servlet-Name │ State │ Alias │ Url
────┼──────────────┼──────────────┼─────────────┼───────┼─────
226 │ Whiteboard$2 │ cxf-servlet │ Deployed │ │ [/*]
karaf@root()> list
START LEVEL 100 , List Threshold: 50
ID │ State │ Lvl │ Version │ Name
────┼────────┼─────┼────────────────────┼───────────────────────────────────────────────
23 │ Active │ 80 │ 4.2.3 │ Apache Karaf :: OSGi Services :: Event
220 │ Active │ 80 │ 1.0.0 │ Karaf :: Osgi :: Servlet
225 │ Active │ 80 │ 1.0.1 │ Apache Aries JAX-RS Specification API
226 │ Active │ 80 │ 1.0.3 │ Apache Aries JAX-RS Whiteboard
234 │ Active │ 80 │ 1.3.0.1 │ Apache ServiceMix :: Specs :: Annotation API 1.3
235 │ Active │ 80 │ 4.12.0 │ Apache XBean OSGI Bundle Utilities
236 │ Active │ 80 │ 4.12.0 │ Apache XBean :: Classpath Resource Finder
264 │ Active │ 80 │ 7.0.0 │ org.objectweb.asm
265 │ Active │ 80 │ 7.0.0 │ org.objectweb.asm.commons
266 │ Active │ 80 │ 7.0.0 │ org.objectweb.asm.tree
273 │ Active │ 80 │ 1.0.0.201802012106 │ org.osgi:org.osgi.service.jaxrs
274 │ Active │ 80 │ 1.1.0.201802012106 │ org.osgi:org.osgi.util.function
275 │ Active │ 80 │ 1.1.0.201802012106 │ org.osgi:org.osgi.util.promise
karaf@root()>
