OSGI嵌入jetty应用服务器
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OSGI嵌入jetty应用服务器
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1、搭建osgi基礎環境，參考：https://www.cnblogs.com/dyh004/p/10642383.html
2、引入jetty相關的依賴包
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修改jetty啟動端口
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3、com.kszsa.osgi.hello這個bundle中，引入相關的依賴
4、準備靜態頁面
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jetty.html內容如下
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>jetty說明</title> </head> <body> <h2>這是jetty使用說明</h2> <font color="green">//用來注冊諸如表態頁面等等</font><br> registerResources(String alias, String name, HttpContext context) <br><br><font color="green">//用來注冊servlet類</font><br> registerServlet(String alias, Servlet servlet, Dictionary initparams, HttpContext context) </body> </html>?
5、注冊靜態資源，修改Activator.java
package com.kszsa.osgi.hello;import org.osgi.framework.BundleActivator; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceReference; import org.osgi.service.http.HttpContext; import org.osgi.service.http.HttpService;public class Activator implements BundleActivator {private static BundleContext context;private HttpService service;static BundleContext getContext() {return context;}/*** 啟動bundle*/public void start(BundleContext bundleContext) throws Exception {Activator.context = bundleContext;ServiceReference serviceReference = bundleContext.getServiceReference(HttpService.class.getName());service = (HttpService) bundleContext.getService(serviceReference);// 注冊HttpContext httpContext = service.createDefaultHttpContext();// 用來注冊諸如表態頁面等等// 設置別名，所有對"/osgi"映射到"web"目錄service.registerResources("/osgi", "/webpage", httpContext);}/*** 停止bundle*/public void stop(BundleContext bundleContext) throws Exception {service.unregister("/osgi");Activator.context = null;}}6、啟動osgi項目，查看結果，訪問http://127.0.0.1:8090/osgi/jetty.html
說明靜態資源訪問成功。
7、注冊servlet資源，新建servlet
package com.kszsa.osgi.servlet;import java.io.BufferedWriter; import java.io.IOException; import java.io.OutputStreamWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.osgi.framework.BundleContext; public class PrintNameServlet extends HttpServlet{ private static final long serialVersionUID = -9080875068147052401L; private BundleContext context; public PrintNameServlet(BundleContext context) { super(); this.context = context; } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doGet(req, resp); } @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { resp.setCharacterEncoding("UTF-8"); String name = req.getParameter("name"); System.out.println(name); String s = "Hello，world！"; StringBuilder sb = new StringBuilder(); sb.append("<html><title>Response</title><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />"); sb.append("<body>"); sb.append(s); sb.append("</body></html>"); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(resp.getOutputStream(),"UTF-8")); bw.write(sb.toString()); bw.flush(); bw.close(); } }8、修改修改Activator.java，注冊servlet
package com.kszsa.osgi.hello;import org.osgi.framework.BundleActivator; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceReference; import org.osgi.service.http.HttpContext; import org.osgi.service.http.HttpService;import com.kszsa.osgi.servlet.PrintNameServlet;public class Activator implements BundleActivator {private static BundleContext context;private HttpService service;static BundleContext getContext() {return context;}/*** 啟動bundle*/public void start(BundleContext bundleContext) throws Exception {Activator.context = bundleContext;ServiceReference serviceReference = bundleContext.getServiceReference(HttpService.class.getName());service = (HttpService) bundleContext.getService(serviceReference);// 注冊HttpContext httpContext = service.createDefaultHttpContext();// 用來注冊諸如表態頁面等等// 設置別名，所有對"/osgi"映射到"web"目錄service.registerResources("/osgi", "/webpage", httpContext);// 注冊servlet// 設置servlet別名，'/osgi/print"映射到servlet的實現service.registerServlet("/osgi/print", new PrintNameServlet(bundleContext), null, httpContext);}/*** 停止bundle*/public void stop(BundleContext bundleContext) throws Exception {service.unregister("/osgi");Activator.context = null;}}9、重啟osgi，訪問http://127.0.0.1:8090/osgi/print
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參考地址：https://liugang594.iteye.com/blog/1328050
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轉載于:https://www.cnblogs.com/dyh004/p/10642407.html
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