geoserver-ows服务扩展
1. 开发环境以及工具
IDE：Eclipse或其他
JDK：1.6+
svn、maven3.1等
2. 资料准备
从geoserver官网下载源码，本次使用的version=2.5，以及geoserver发布版安装。
提取pom.xml文件（作为自定义项目的parent-pom），放在你自定义工程目录的上级目录中
3. 开始
a)在你的workspace中建立名为hello的项目。导入eclipse中，右键-maven选项-变成maven项目。Java-source目录：hello/src/main/java
目录结构：
Workspace/
+ pom.xml（parent-pom）
+ hello/
+pom.xml
+src/
+main/
+ java/
b)新建或修改pom.xml，你的pom配置应该如下：
<?xml
version=“1.0”encoding=“ISO-8859-1”?>
<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/4.0.0http://maven.apache.org/maven-v4_0_0.xsd”>
<modelVersion>4.0.0</modelVersion>
<!– set parent pom to community
pom–>
<parent>
<groupId>org.geoserver</groupId>
<artifactId>community</artifactId>
<version>2.5-SNAPSHOT</version>
</parent>
<groupId>org.geoserver</groupId>
<artifactId>fileService</artifactId>
<packaging>jar</packaging>
<version>1.0.0</version>
<name>Cnpc File Service Module</name>
<!– declare depenency on
geoservermain –>
<dependencies>
<dependency>
<groupId>org.geoserver</groupId>
<artifactId>main</artifactId>
<version>2.5-SNAPSHOT</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>opengeo</id>
<name>opengeo</name>
<url>http://repo.opengeo.org</url>
</repository>
</repositories>
</project>
C)新建类：HelloWorld
importjava.io.IOException;
importjavax.servlet.ServletException;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
publicclassHelloWorld{
publicHelloWorld(){
// Do nothing
}
publicvoidsayHello(HttpServletRequestrequest,HttpServletResponseresponse)
throwsServletException,IOException{
response.getOutputStream().write("Hello World".getBytes());
}
}
D)创建spring配置文件applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- Spring will reference the instance of the HelloWorld class
by the id name "helloService" -->
<beanid="helloService"class="HelloWorld">
</bean>
<!-- This creates a Service descriptor, which allows the org.geoserver.ows.Dispatcher
to locate it. -->
<beanid="helloService-1.0.0"class="org.geoserver.platform.Service">
<!-- used to reference the service in the URL -->
<constructor-argindex="0"value="hello"/>
<!-- our actual service POJO defined previously -->
<constructor-argindex="1"ref="helloService"/>
<!-- a version number for this service -->
<constructor-argindex="2"value="1.0.0"/>
<!-- a list of functions for this service -->
<constructor-argindex="3">
<list>
<value>sayHello</value>
</list>
</constructor-arg>
</bean>
</beans>
此时目录结构：
hello/
+ pom.xml
+ src/
+ main/
+ java/
+ HelloWorld.java
+ applicationContext.xml
e)打包：
在cmd窗口进入你的hello目录，运行maven命令
[hello]% mvn install
[hello]% mvn install
[INFO] Scanning for projects...
[INFO] ----------------------------------------------------------------------------
[INFO] Building Hello World Service Module
[INFO] task-segment: [install]
[INFO] ----------------------------------------------------------------------------
[INFO][resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO][compiler:compile]
[INFO] Compiling 1 source file to /home/ak/geoserver/community/hello/target/classes
[INFO][resources:testResources]
[INFO] Using default encoding to copy filtered resources.
[INFO][compiler:testCompile]
[INFO] No sources to compile
[INFO][surefire:test]
[INFO] No tests to run.
[INFO][jar:jar]
[INFO] Building jar: /home/ak/geoserver/community/hello/target/hello-1.0.jar
[INFO][jar:test-jar {execution: default}]
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar: /home/ak/geoserver/community/hello/target/hello-1.0-tests.jar
[INFO][install:install]
[INFO] Installing /home/ak/geoserver/community/hello/target/hello-1.0.jar to /home/ak/.m2/repository/org/geoserver/hello/1.0/hello-1.0.jar
[INFO] Installing /home/ak/geoserver/community/hello/target/hello-1.0-tests.jar to /home/ak/.m2/repository/org/geoserver/hello/1.0/hello-1.0-tests.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6 seconds
[INFO] Finished at: Fri Sep 21 14:52:31 EDT 2007
[INFO] Final Memory: 27M/178M
[INFO] -----------------------------------------------------------------------
f)发布
拷贝target/hello-1.0.jar到geoserver安装目录：
如：D:\Program Files (x86)\GeoServer2.4.3\webapps\geoserver\WEB-INF\lib
下
重新启动geoserver即可。
g)访问
http://<host>/geoserver/ows?request=sayHello&service=hello&version=1.0.0
参数说明：
request：在HelloWorld中定义的方法
service：applicationContext.xml中定义的hello
hello：applicationContext.xml中定义的1.0.0
预览结果：
转载自：https://blog.csdn.net/sd_30_oldman/article/details/18555411
