使用Http协议获取网络图片，采用servlet输出详解编程语言

import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.sudytech.activity.web.uitl.ActivityConfigUtil; import com.sudytech.data.mgr.IManager; import com.sudytech.log.ILog; import com.sudytech.log.LogFactory; import com.sudytech.portal.server.WebplusEnv; import com.sudytech.site.cms.api.ISiteCmsManager; import com.sudytech.site.cms.api.SiteCmsMgrFactory; import com.sudytech.site.cms.api.om.SiteArticle2; public class ActivityPictureServlet extends HttpServlet { private static final long serialVersionUID = 1L; private static ILog _log = LogFactory.getInstance().getLog( ActivityPictureServlet.class); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("image/jpeg; charset=utf-8"); OutputStream os = null; try { os = response.getOutputStream(); URL url = new URL("http://127.0.0.1:8080/photo/2012-02/09/122675973_51n.jpg"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod("GET"); conn.setConnectTimeout(5 * 1000); conn.connect(); InputStream in = conn.getInputStream(); byte[] buffer = new byte[1024]; int len = 0; while ((len = in.read(buffer)) != -1) { os.write(buffer, 0, len); os.flush(); os.flush(); } catch (Exception e) { _log.error("activity picture error!");

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